Lab026: benchmark low-bitrate video and 4-bit encoding

data/processed/lab026/lab026_profiles.csv

@@ -0,0 +1,33 @@
+experiment,profile_name,width,height,target_fps,actual_fps,color_mode,jpeg_quality,source_duration_s,selected_frames,total_bytes,mean_frame_bytes,median_frame_bytes,p95_frame_bytes,max_frame_bytes,payload_bitrate_bps,payload_bitrate_kbps,source_file_bitrate_kbps,reduction_ratio,percent_of_source,mean_psnr_db
+fps_sweep,fps_30,640,360,30.000000,30.000000,grayscale,50,20.766667,623,10219569,16403.803,16282.000,18471.500,21081,3936912.616,3936.912616,3001.342536,0.762359,131.171720,37.349661
+fps_sweep,fps_10,640,360,10.000000,10.016051,grayscale,50,20.766667,208,3641634,17507.856,17509.500,18958.400,21081,1402876.661,1402.876661,3001.342536,2.139420,46.741638,36.369592
+fps_sweep,fps_5,640,360,5.000000,5.008026,grayscale,50,20.766667,104,1822387,17522.952,17547.000,18910.400,21081,702043.146,702.043146,3001.342536,4.275154,23.390970,36.352519
+fps_sweep,fps_2,640,360,2.000000,2.022472,grayscale,50,20.766667,42,737435,17557.976,17476.500,18926.800,21081,284084.109,284.084109,3001.342536,10.564979,9.465234,36.319782
+fps_sweep,fps_1,640,360,1.000000,1.011236,grayscale,50,20.766667,21,369317,17586.524,17483.000,18935.000,21081,142273.002,142.273002,3001.342536,21.095658,4.740312,36.287711
+fps_sweep,fps_0_5,640,360,0.500000,0.529695,grayscale,50,20.766667,11,191626,17420.545,17040.000,19774.000,21081,73820.610,73.820610,3001.342536,40.657244,2.459586,36.371684
+fps_sweep,fps_0_2,640,360,0.200000,0.240770,grayscale,50,20.766667,5,91496,18299.200,18467.000,20651.800,21081,35247.255,35.247255,3001.342536,85.151100,1.174383,35.860330
+resolution_sweep,resolution_1280x720,1280,720,5.000000,5.008026,grayscale,50,20.766667,104,5506628,52948.346,52634.000,57821.150,73994,2121333.419,2121.333419,3001.342536,1.414838,70.679484,39.607731
+resolution_sweep,resolution_960x540,960,540,5.000000,5.008026,grayscale,50,20.766667,104,3411900,32806.731,32634.500,35501.600,41897,1314375.602,1314.375602,3001.342536,2.283474,43.792922,38.632041
+resolution_sweep,resolution_640x360,640,360,5.000000,5.008026,grayscale,50,20.766667,104,1822387,17522.952,17547.000,18910.400,21081,702043.146,702.043146,3001.342536,4.275154,23.390970,36.352519
+resolution_sweep,resolution_480x270,480,270,5.000000,5.008026,grayscale,50,20.766667,104,1120944,10778.308,10786.000,11463.200,12395,431824.334,431.824334,3001.342536,6.950378,14.387706,36.172087
+resolution_sweep,resolution_320x180,320,180,5.000000,5.008026,grayscale,50,20.766667,104,590018,5673.250,5679.000,5995.750,6191,227294.254,227.294254,3001.342536,13.204656,7.573086,35.069392
+resolution_sweep,resolution_160x90,160,90,5.000000,5.008026,grayscale,50,20.766667,104,210050,2019.712,2017.000,2103.400,2156,80918.138,80.918138,3001.342536,37.091097,2.696065,33.585930
+quality_sweep,quality_color_q90,640,360,5.000000,5.008026,color,90,20.766667,104,5486654,52756.288,52645.500,57012.750,66227,2113638.780,2113.638780,3001.342536,1.419988,70.423111,39.694424
+quality_sweep,quality_color_q70,640,360,5.000000,5.008026,color,70,20.766667,104,2901304,27897.154,27815.500,30080.600,33877,1117677.303,1117.677303,3001.342536,2.685339,37.239245,36.029412
+quality_sweep,quality_color_q50,640,360,5.000000,5.008026,color,50,20.766667,104,2137169,20549.702,20514.000,22026.250,24396,823307.480,823.307480,3001.342536,3.645470,27.431307,34.439250
+quality_sweep,quality_color_q30,640,360,5.000000,5.008026,color,30,20.766667,104,1572112,15116.462,15105.500,16167.600,17386,605629.021,605.629021,3001.342536,4.955744,20.178604,32.766254
+quality_sweep,quality_color_q20,640,360,5.000000,5.008026,color,20,20.766667,104,1224535,11774.375,11797.000,12633.050,13098,471730.979,471.730979,3001.342536,6.362403,15.717332,31.298703
+quality_sweep,quality_grayscale_q90,640,360,5.000000,5.008026,grayscale,90,20.766667,104,4697004,45163.500,44959.000,48937.750,57535,1809439.743,1809.439743,3001.342536,1.658714,60.287679,42.574562
+quality_sweep,quality_grayscale_q70,640,360,5.000000,5.008026,grayscale,70,20.766667,104,2484781,23892.125,23853.000,25744.950,29385,957219.005,957.219005,3001.342536,3.135482,31.893028,38.031656
+quality_sweep,quality_grayscale_q50,640,360,5.000000,5.008026,grayscale,50,20.766667,104,1822387,17522.952,17547.000,18910.400,21081,702043.146,702.043146,3001.342536,4.275154,23.390970,36.352519
+quality_sweep,quality_grayscale_q30,640,360,5.000000,5.008026,grayscale,30,20.766667,104,1328179,12770.952,12821.500,13834.150,14903,511658.042,511.658042,3001.342536,5.865915,17.047639,34.701951
+quality_sweep,quality_grayscale_q20,640,360,5.000000,5.008026,grayscale,20,20.766667,104,1017957,9788.048,9832.500,10597.450,11027,392150.369,392.150369,3001.342536,7.653550,13.065832,33.304362
+candidate_profiles,candidate_640x360_gray_5fps_q50,640,360,5.000000,5.008026,grayscale,50,20.766667,104,1822387,17522.952,17547.000,18910.400,21081,702043.146,702.043146,3001.342536,4.275154,23.390970,36.352519
+candidate_profiles,candidate_640x360_gray_2fps_q40,640,360,2.000000,2.022472,grayscale,40,20.766667,42,639531,15226.929,15187.500,16381.750,18122,246368.283,246.368283,3001.342536,12.182341,8.208603,35.588581
+candidate_profiles,candidate_320x180_color_5fps_q50,320,180,5.000000,5.008026,color,50,20.766667,104,717676,6900.731,6919.500,7309.850,7475,276472.295,276.472295,3001.342536,10.855853,9.211621,32.413850
+candidate_profiles,candidate_320x180_gray_5fps_q50,320,180,5.000000,5.008026,grayscale,50,20.766667,104,590018,5673.250,5679.000,5995.750,6191,227294.254,227.294254,3001.342536,13.204656,7.573086,35.069392
+candidate_profiles,candidate_320x180_gray_2fps_q40,320,180,2.000000,2.022472,grayscale,40,20.766667,42,208403,4961.976,4965.000,5224.700,5400,80283.660,80.283660,3001.342536,37.384227,2.674925,34.362114
+candidate_profiles,candidate_320x180_gray_1fps_q35,320,180,1.000000,1.011236,grayscale,35,20.766667,21,96733,4606.333,4611.000,4836.000,4992,37264.719,37.264719,3001.342536,80.541129,1.241602,34.035117
+candidate_profiles,candidate_320x180_gray_0_5fps_q35,320,180,0.500000,0.529695,grayscale,35,20.766667,11,50124,4556.727,4493.000,4914.000,4992,19309.406,19.309406,3001.342536,155.434223,0.643359,34.165852
+candidate_profiles,candidate_320x180_gray_0_2fps_q35,320,180,0.200000,0.240770,grayscale,35,20.766667,5,23618,4723.600,4815.000,4960.800,4992,9098.427,9.098427,3001.342536,329.874884,0.303145,33.741044
+candidate_profiles,candidate_160x90_gray_1fps_q30,160,90,1.000000,1.011236,grayscale,30,20.766667,21,32743,1559.190,1561.000,1623.000,1632,12613.676,12.613676,3001.342536,237.943530,0.420268,32.031480

data/processed/lab026/lab026_report.txt

@@ -0,0 +1,82 @@
+Lab026. Исследование уменьшения видеопотока для радиоуправления ровером
+
+Цель: исследовать уменьшение полезной нагрузки видеоканала для передачи через ретранслятор.
+Исходный файл: data\raw\lab026_rover_source.mp4
+Размер исходного файла: 7790985 байт
+Исходное разрешение: 1280x720
+Исходный FPS: 30.000000
+Число кадров: 623
+Длительность: 20.766667 с
+Приблизительный исходный файловый битрейт: 3001.343 кбит/с
+
+Исследуется независимое покадровое JPEG-сжатие. JPEG хранится и декодируется только в памяти.
+Рассчитанный bitrate учитывает только JPEG payload.
+Не учитываются заголовки радиопакетов, CRC, FEC, преамбула, интервалы, повторы и команды управления.
+
+Результаты fps_sweep:
+fps_30: 640x360, 30 кадр/с, grayscale, Q=50, кадров=623, payload=3936.913 кбит/с, PSNR=37.350 дБ, уменьшение=0.76x
+fps_10: 640x360, 10 кадр/с, grayscale, Q=50, кадров=208, payload=1402.877 кбит/с, PSNR=36.370 дБ, уменьшение=2.14x
+fps_5: 640x360, 5 кадр/с, grayscale, Q=50, кадров=104, payload=702.043 кбит/с, PSNR=36.353 дБ, уменьшение=4.28x
+fps_2: 640x360, 2 кадр/с, grayscale, Q=50, кадров=42, payload=284.084 кбит/с, PSNR=36.320 дБ, уменьшение=10.56x
+fps_1: 640x360, 1 кадр/с, grayscale, Q=50, кадров=21, payload=142.273 кбит/с, PSNR=36.288 дБ, уменьшение=21.10x
+fps_0_5: 640x360, 0.5 кадр/с, grayscale, Q=50, кадров=11, payload=73.821 кбит/с, PSNR=36.372 дБ, уменьшение=40.66x
+fps_0_2: 640x360, 0.2 кадр/с, grayscale, Q=50, кадров=5, payload=35.247 кбит/с, PSNR=35.860 дБ, уменьшение=85.15x
+
+Результаты resolution_sweep:
+resolution_1280x720: 1280x720, 5 кадр/с, grayscale, Q=50, кадров=104, payload=2121.333 кбит/с, PSNR=39.608 дБ, уменьшение=1.41x
+resolution_960x540: 960x540, 5 кадр/с, grayscale, Q=50, кадров=104, payload=1314.376 кбит/с, PSNR=38.632 дБ, уменьшение=2.28x
+resolution_640x360: 640x360, 5 кадр/с, grayscale, Q=50, кадров=104, payload=702.043 кбит/с, PSNR=36.353 дБ, уменьшение=4.28x
+resolution_480x270: 480x270, 5 кадр/с, grayscale, Q=50, кадров=104, payload=431.824 кбит/с, PSNR=36.172 дБ, уменьшение=6.95x
+resolution_320x180: 320x180, 5 кадр/с, grayscale, Q=50, кадров=104, payload=227.294 кбит/с, PSNR=35.069 дБ, уменьшение=13.20x
+resolution_160x90: 160x90, 5 кадр/с, grayscale, Q=50, кадров=104, payload=80.918 кбит/с, PSNR=33.586 дБ, уменьшение=37.09x
+
+Результаты quality_sweep:
+quality_color_q90: 640x360, 5 кадр/с, color, Q=90, кадров=104, payload=2113.639 кбит/с, PSNR=39.694 дБ, уменьшение=1.42x
+quality_color_q70: 640x360, 5 кадр/с, color, Q=70, кадров=104, payload=1117.677 кбит/с, PSNR=36.029 дБ, уменьшение=2.69x
+quality_color_q50: 640x360, 5 кадр/с, color, Q=50, кадров=104, payload=823.307 кбит/с, PSNR=34.439 дБ, уменьшение=3.65x
+quality_color_q30: 640x360, 5 кадр/с, color, Q=30, кадров=104, payload=605.629 кбит/с, PSNR=32.766 дБ, уменьшение=4.96x
+quality_color_q20: 640x360, 5 кадр/с, color, Q=20, кадров=104, payload=471.731 кбит/с, PSNR=31.299 дБ, уменьшение=6.36x
+quality_grayscale_q90: 640x360, 5 кадр/с, grayscale, Q=90, кадров=104, payload=1809.440 кбит/с, PSNR=42.575 дБ, уменьшение=1.66x
+quality_grayscale_q70: 640x360, 5 кадр/с, grayscale, Q=70, кадров=104, payload=957.219 кбит/с, PSNR=38.032 дБ, уменьшение=3.14x
+quality_grayscale_q50: 640x360, 5 кадр/с, grayscale, Q=50, кадров=104, payload=702.043 кбит/с, PSNR=36.353 дБ, уменьшение=4.28x
+quality_grayscale_q30: 640x360, 5 кадр/с, grayscale, Q=30, кадров=104, payload=511.658 кбит/с, PSNR=34.702 дБ, уменьшение=5.87x
+quality_grayscale_q20: 640x360, 5 кадр/с, grayscale, Q=20, кадров=104, payload=392.150 кбит/с, PSNR=33.304 дБ, уменьшение=7.65x
+
+Результаты candidate_profiles:
+candidate_640x360_gray_5fps_q50: 640x360, 5 кадр/с, grayscale, Q=50, кадров=104, payload=702.043 кбит/с, PSNR=36.353 дБ, уменьшение=4.28x
+candidate_640x360_gray_2fps_q40: 640x360, 2 кадр/с, grayscale, Q=40, кадров=42, payload=246.368 кбит/с, PSNR=35.589 дБ, уменьшение=12.18x
+candidate_320x180_color_5fps_q50: 320x180, 5 кадр/с, color, Q=50, кадров=104, payload=276.472 кбит/с, PSNR=32.414 дБ, уменьшение=10.86x
+candidate_320x180_gray_5fps_q50: 320x180, 5 кадр/с, grayscale, Q=50, кадров=104, payload=227.294 кбит/с, PSNR=35.069 дБ, уменьшение=13.20x
+candidate_320x180_gray_2fps_q40: 320x180, 2 кадр/с, grayscale, Q=40, кадров=42, payload=80.284 кбит/с, PSNR=34.362 дБ, уменьшение=37.38x
+candidate_320x180_gray_1fps_q35: 320x180, 1 кадр/с, grayscale, Q=35, кадров=21, payload=37.265 кбит/с, PSNR=34.035 дБ, уменьшение=80.54x
+candidate_320x180_gray_0_5fps_q35: 320x180, 0.5 кадр/с, grayscale, Q=35, кадров=11, payload=19.309 кбит/с, PSNR=34.166 дБ, уменьшение=155.43x
+candidate_320x180_gray_0_2fps_q35: 320x180, 0.2 кадр/с, grayscale, Q=35, кадров=5, payload=9.098 кбит/с, PSNR=33.741 дБ, уменьшение=329.87x
+candidate_160x90_gray_1fps_q30: 160x90, 1 кадр/с, grayscale, Q=30, кадров=21, payload=12.614 кбит/с, PSNR=32.031 дБ, уменьшение=237.94x
+
+Candidate-профили с payload bitrate не более 100 кбит/с:
+candidate_320x180_gray_2fps_q40: 320x180, 2 кадр/с, grayscale, Q=40, кадров=42, payload=80.284 кбит/с, PSNR=34.362 дБ, уменьшение=37.38x
+candidate_320x180_gray_1fps_q35: 320x180, 1 кадр/с, grayscale, Q=35, кадров=21, payload=37.265 кбит/с, PSNR=34.035 дБ, уменьшение=80.54x
+candidate_320x180_gray_0_5fps_q35: 320x180, 0.5 кадр/с, grayscale, Q=35, кадров=11, payload=19.309 кбит/с, PSNR=34.166 дБ, уменьшение=155.43x
+candidate_320x180_gray_0_2fps_q35: 320x180, 0.2 кадр/с, grayscale, Q=35, кадров=5, payload=9.098 кбит/с, PSNR=33.741 дБ, уменьшение=329.87x
+candidate_160x90_gray_1fps_q30: 160x90, 1 кадр/с, grayscale, Q=30, кадров=21, payload=12.614 кбит/с, PSNR=32.031 дБ, уменьшение=237.94x
+
+Candidate-профили с payload bitrate не более 50 кбит/с:
+candidate_320x180_gray_1fps_q35: 320x180, 1 кадр/с, grayscale, Q=35, кадров=21, payload=37.265 кбит/с, PSNR=34.035 дБ, уменьшение=80.54x
+candidate_320x180_gray_0_5fps_q35: 320x180, 0.5 кадр/с, grayscale, Q=35, кадров=11, payload=19.309 кбит/с, PSNR=34.166 дБ, уменьшение=155.43x
+candidate_320x180_gray_0_2fps_q35: 320x180, 0.2 кадр/с, grayscale, Q=35, кадров=5, payload=9.098 кбит/с, PSNR=33.741 дБ, уменьшение=329.87x
+candidate_160x90_gray_1fps_q30: 160x90, 1 кадр/с, grayscale, Q=30, кадров=21, payload=12.614 кбит/с, PSNR=32.031 дБ, уменьшение=237.94x
+
+Candidate-профили с payload bitrate не более 20 кбит/с:
+candidate_320x180_gray_0_5fps_q35: 320x180, 0.5 кадр/с, grayscale, Q=35, кадров=11, payload=19.309 кбит/с, PSNR=34.166 дБ, уменьшение=155.43x
+candidate_320x180_gray_0_2fps_q35: 320x180, 0.2 кадр/с, grayscale, Q=35, кадров=5, payload=9.098 кбит/с, PSNR=33.741 дБ, уменьшение=329.87x
+candidate_160x90_gray_1fps_q30: 160x90, 1 кадр/с, grayscale, Q=30, кадров=21, payload=12.614 кбит/с, PSNR=32.031 дБ, уменьшение=237.94x
+
+Candidate-профили с payload bitrate не более 10 кбит/с:
+candidate_320x180_gray_0_2fps_q35: 320x180, 0.2 кадр/с, grayscale, Q=35, кадров=5, payload=9.098 кбит/с, PSNR=33.741 дБ, уменьшение=329.87x
+
+Профиль с минимальным измеренным битрейтом:
+candidate_320x180_gray_0_2fps_q35: 320x180, 0.2 кадр/с, grayscale, Q=35, кадров=5, payload=9.098 кбит/с, PSNR=33.741 дБ, уменьшение=329.87x
+
+Автоматические метрики не заменяют визуальную оценку пригодности изображения для управления ровером.
+Сравнительное изображение: data\processed\lab026\lab026_candidate_profiles.png
+Следующий шаг: пользователь должен визуально выбрать пригодные candidate-профили.

data/processed/lab026b/lab026b_profiles.csv

@@ -0,0 +1,31 @@
+experiment,profile_name,mode,width,height,pixel_count,target_fps,actual_fps,bits_per_pixel_before_compression,maximum_gray_levels,maximum_colors,selected_frames,total_payload_bytes,mean_frame_bytes,median_frame_bytes,p95_frame_bytes,max_frame_bytes,payload_bitrate_bps,payload_bitrate_kbps,baseline_bitrate_kbps,difference_from_baseline_kbps,percent_of_baseline_bitrate,compression_ratio_from_unpacked_source,mean_psnr_db,header_bytes_per_frame,palette_bytes_per_frame,notes
+four_bit_resolution_sweep,320x180_gray8_jpeg_2fps,gray8_jpeg,320,180,57600,2.000000,2.022472,8,256,0,42,208403,4961.976,4965.000,5224.700,5400,80283.660,80.283660,80.283660,-0.000000,100.000000,11.608278,34.362114,0,0,"Grayscale 8 bit, JPEG quality 40."
+four_bit_resolution_sweep,320x180_gray4_jpeg_2fps,gray4_jpeg,320,180,57600,2.000000,2.022472,4,16,0,42,229518,5464.714,5466.000,5727.250,5822,88417.849,88.417849,80.283660,8.134189,110.131812,10.540350,32.588941,0,0,"Grayscale quantized to 16 levels, restored to uint8, JPEG quality 40."
+four_bit_resolution_sweep,320x180_gray4_packed_zlib_2fps,gray4_packed_zlib,320,180,57600,2.000000,2.022472,4,16,0,42,441074,10501.762,10444.000,11194.300,12317,169916.148,169.916148,80.283660,89.632488,211.644745,5.484794,34.397012,16,0,"Two 4-bit grayscale indices per byte, zlib level 9, 16-byte frame header."
+four_bit_resolution_sweep,320x180_color16_png_2fps,color16_png,320,180,57600,2.000000,2.022472,4,0,16,42,371520,8845.714,8607.500,10578.350,10794,143121.669,143.121669,80.283660,62.838009,178.269986,19.534884,25.384724,0,0,"Pillow palette image, maximum 16 colors, no dithering, optimized indexed PNG."
+four_bit_resolution_sweep,320x180_color16_packed_zlib_2fps,color16_packed_zlib,320,180,57600,2.000000,2.022472,4,0,16,42,364892,8687.905,8452.000,10414.800,10652,140568.347,140.568347,80.283660,60.284687,175.089609,19.889721,25.384724,16,48,"Two 4-bit palette indices per byte, zlib level 9, 16-byte header and fixed 48-byte palette."
+four_bit_resolution_sweep,400x225_gray8_jpeg_2fps,gray8_jpeg,400,225,90000,2.000000,2.022472,8,256,0,42,297273,7077.929,7063.500,7473.000,7841,114519.294,114.519294,80.283660,34.235634,142.643340,12.715585,34.942886,0,0,"Grayscale 8 bit, JPEG quality 40."
+four_bit_resolution_sweep,400x225_gray4_jpeg_2fps,gray4_jpeg,400,225,90000,2.000000,2.022472,4,16,0,42,332268,7911.143,7920.500,8353.700,8554,128000.514,128.000514,80.283660,47.716854,159.435324,11.376359,32.883090,0,0,"Grayscale quantized to 16 levels, restored to uint8, JPEG quality 40."
+four_bit_resolution_sweep,400x225_gray4_packed_zlib_2fps,gray4_packed_zlib,400,225,90000,2.000000,2.022472,4,16,0,42,636862,15163.381,15120.500,16266.050,18356,245340.096,245.340096,80.283660,165.056436,305.591569,5.935352,34.399552,16,0,"Two 4-bit grayscale indices per byte, zlib level 9, 16-byte frame header."
+four_bit_resolution_sweep,400x225_color16_png_2fps,color16_png,400,225,90000,2.000000,2.022472,4,0,16,42,528261,12577.643,12153.000,15191.650,16128,203503.435,203.503435,80.283660,123.219775,253.480515,21.466661,25.344339,0,0,"Pillow palette image, maximum 16 colors, no dithering, optimized indexed PNG."
+four_bit_resolution_sweep,400x225_color16_packed_zlib_2fps,color16_packed_zlib,400,225,90000,2.000000,2.022472,4,0,16,42,520725,12398.214,11977.000,15015.100,15966,200600.321,200.600321,80.283660,120.316661,249.864444,21.777330,25.344339,16,48,"Two 4-bit palette indices per byte, zlib level 9, 16-byte header and fixed 48-byte palette."
+four_bit_resolution_sweep,448x252_gray8_jpeg_2fps,gray8_jpeg,448,252,112896,2.000000,2.022472,8,256,0,42,353578,8418.524,8413.000,8885.950,9512,136209.823,136.209823,80.283660,55.926163,169.660705,13.410427,35.301071,0,0,"Grayscale 8 bit, JPEG quality 40."
+four_bit_resolution_sweep,448x252_gray4_jpeg_2fps,gray4_jpeg,448,252,112896,2.000000,2.022472,4,16,0,42,397126,9455.381,9467.500,9996.400,10450,152985.939,152.985939,80.283660,72.702279,190.556757,11.939868,33.060439,0,0,"Grayscale quantized to 16 levels, restored to uint8, JPEG quality 40."
+four_bit_resolution_sweep,448x252_gray4_packed_zlib_2fps,gray4_packed_zlib,448,252,112896,2.000000,2.022472,4,16,0,42,762082,18144.810,18111.500,19504.750,22433,293578.941,293.578941,80.283660,213.295281,365.677076,6.221945,34.399841,16,0,"Two 4-bit grayscale indices per byte, zlib level 9, 16-byte frame header."
+four_bit_resolution_sweep,448x252_color16_png_2fps,color16_png,448,252,112896,2.000000,2.022472,4,0,16,42,626516,14917.048,14409.500,18239.600,18695,241354.478,241.354478,80.283660,161.070818,300.627149,22.704761,25.369963,0,0,"Pillow palette image, maximum 16 colors, no dithering, optimized indexed PNG."
+four_bit_resolution_sweep,448x252_color16_packed_zlib_2fps,color16_packed_zlib,448,252,112896,2.000000,2.022472,4,0,16,42,618164,14718.190,14221.500,18022.000,18517,238137.014,238.137014,80.283660,157.853354,296.619529,23.011524,25.369963,16,48,"Two 4-bit palette indices per byte, zlib level 9, 16-byte header and fixed 48-byte palette."
+four_bit_resolution_sweep,480x270_gray8_jpeg_2fps,gray8_jpeg,480,270,129600,2.000000,2.022472,8,256,0,42,393752,9375.048,9365.500,9919.950,10678,151686.164,151.686164,80.283660,71.402504,188.937779,13.823930,35.412999,0,0,"Grayscale 8 bit, JPEG quality 40."
+four_bit_resolution_sweep,480x270_gray4_jpeg_2fps,gray4_jpeg,480,270,129600,2.000000,2.022472,4,16,0,42,443419,10557.595,10575.500,11152.550,11737,170819.518,170.819518,80.283660,90.535858,212.769969,12.275523,33.099458,0,0,"Grayscale quantized to 16 levels, restored to uint8, JPEG quality 40."
+four_bit_resolution_sweep,480x270_gray4_packed_zlib_2fps,gray4_packed_zlib,480,270,129600,2.000000,2.022472,4,16,0,42,854354,20341.762,20276.500,21857.900,25369,329125.136,329.125136,80.283660,248.841476,409.952830,6.371130,34.401420,16,0,"Two 4-bit grayscale indices per byte, zlib level 9, 16-byte frame header."
+four_bit_resolution_sweep,480x270_color16_png_2fps,color16_png,480,270,129600,2.000000,2.022472,4,0,16,42,701871,16711.214,16249.500,20469.850,21005,270383.692,270.383692,80.283660,190.100032,336.785458,23.265814,25.368870,0,0,"Pillow palette image, maximum 16 colors, no dithering, optimized indexed PNG."
+four_bit_resolution_sweep,480x270_color16_packed_zlib_2fps,color16_packed_zlib,480,270,129600,2.000000,2.022472,4,0,16,42,693190,16504.524,16007.500,20249.750,20809,267039.486,267.039486,80.283660,186.755826,332.619971,23.557178,25.368870,16,48,"Two 4-bit palette indices per byte, zlib level 9, 16-byte header and fixed 48-byte palette."
+four_bit_resolution_sweep,560x315_gray8_jpeg_2fps,gray8_jpeg,560,315,176400,2.000000,2.022472,8,256,0,42,507535,12084.167,12068.500,12860.900,13999,195519.101,195.519101,80.283660,115.235441,243.535361,14.597614,35.954946,0,0,"Grayscale 8 bit, JPEG quality 40."
+four_bit_resolution_sweep,560x315_gray4_jpeg_2fps,gray4_jpeg,560,315,176400,2.000000,2.022472,4,16,0,42,575350,13698.810,13674.500,14558.450,15458,221643.660,221.643660,80.283660,141.360000,276.075679,12.877031,33.337152,0,0,"Grayscale quantized to 16 levels, restored to uint8, JPEG quality 40."
+four_bit_resolution_sweep,560x315_gray4_packed_zlib_2fps,gray4_packed_zlib,560,315,176400,2.000000,2.022472,4,16,0,42,1093024,26024.381,25851.500,28055.650,33171,421068.636,421.068636,80.283660,340.784976,524.476133,6.778259,34.403027,16,0,"Two 4-bit grayscale indices per byte, zlib level 9, 16-byte frame header."
+four_bit_resolution_sweep,560x315_color16_png_2fps,color16_png,560,315,176400,2.000000,2.022472,4,0,16,42,894967,21308.738,20851.500,25906.100,27345,344770.594,344.770594,80.283660,264.486934,429.440554,24.834882,25.323519,0,0,"Pillow palette image, maximum 16 colors, no dithering, optimized indexed PNG."
+four_bit_resolution_sweep,560x315_color16_packed_zlib_2fps,color16_packed_zlib,560,315,176400,2.000000,2.022472,4,0,16,42,885156,21075.143,20622.000,25686.650,27166,340991.075,340.991075,80.283660,260.707415,424.732848,25.110150,25.323519,16,48,"Two 4-bit palette indices per byte, zlib level 9, 16-byte header and fixed 48-byte palette."
+four_bit_resolution_sweep,640x360_gray8_jpeg_2fps,gray8_jpeg,640,360,230400,2.000000,2.022472,8,256,0,42,639531,15226.929,15187.500,16381.750,18122,246368.283,246.368283,80.283660,166.084623,306.872261,15.131088,35.588581,0,0,"Grayscale 8 bit, JPEG quality 40."
+four_bit_resolution_sweep,640x360_gray4_jpeg_2fps,gray4_jpeg,640,360,230400,2.000000,2.022472,4,16,0,42,726335,17293.690,17220.500,18557.350,19938,279808.026,279.808026,80.283660,199.524366,348.524252,13.322778,33.048695,0,0,"Grayscale quantized to 16 levels, restored to uint8, JPEG quality 40."
+four_bit_resolution_sweep,640x360_gray4_packed_zlib_2fps,gray4_packed_zlib,640,360,230400,2.000000,2.022472,4,16,0,42,1394769,33208.786,32974.500,35959.800,43514,537310.690,537.310690,80.283660,457.027030,669.265315,6.937923,34.404228,16,0,"Two 4-bit grayscale indices per byte, zlib level 9, 16-byte frame header."
+four_bit_resolution_sweep,640x360_color16_png_2fps,color16_png,640,360,230400,2.000000,2.022472,4,0,16,42,1140488,27154.476,26267.500,33424.950,36017,439353.323,439.353323,80.283660,359.069663,547.251237,25.454367,25.259621,0,0,"Pillow palette image, maximum 16 colors, no dithering, optimized indexed PNG."
+four_bit_resolution_sweep,640x360_color16_packed_zlib_2fps,color16_packed_zlib,640,360,230400,2.000000,2.022472,4,0,16,42,1128711,26874.071,25978.500,33021.450,35603,434816.437,434.816437,80.283660,354.532777,541.600167,25.719958,25.259621,16,48,"Two 4-bit palette indices per byte, zlib level 9, 16-byte header and fixed 48-byte palette."

data/processed/lab026b/lab026b_report.txt

@@ -0,0 +1,90 @@
+Lab026B. Увеличение разрешения кадра за счёт глубины цвета 4 бита
+
+Цель: проверить увеличение разрешения при битрейте, близком к контрольным 80.283660 кбит/с.
+Исходное видео: data\raw\lab026_rover_source.mp4
+Размер исходного видео: 7790985 байт
+Исходное разрешение: 1280×720
+Исходный FPS: 30.000000
+Число кадров: 623
+Длительность: 20.766667 с
+
+4-битная яркость: индекс 0...15, то есть 16 уровней серого на пиксель.
+4-битный индексированный цвет: один индекс 0...15 на пиксель и палитра максимум из 16 RGB-цветов.
+Это не RGB444: RGB444 требует по 4 бита на каждый из трёх каналов, то есть 12 бит на пиксель.
+
+Режимы:
+gray8_jpeg — контрольный grayscale JPEG Q40.
+gray4_jpeg — 16 уровней серого, восстановление uint8, JPEG Q40.
+gray4_packed_zlib — 4-битные индексы, два на байт, zlib level 9 и заголовок 16 байт.
+color16_png — палитра максимум 16 цветов, без дизеринга, индексированный PNG в памяти.
+color16_packed_zlib — 4-битные индексы, zlib level 9, заголовок 16 байт и фиксированная палитра 48 байт.
+
+Контрольный baseline: 80.283660 кбит/с.
+CRC, FEC, радиозаголовки и пакетирование пока не учтены.
+Статические метрики не учитывают задержку видеоканала.
+
+Полные результаты 30 профилей:
+320x180_gray8_jpeg_2fps: mode=gray8_jpeg, 320x180, frames=42, actual_fps=2.022472, total=208403 bytes, mean=4961.976, median=4965.000, p95=5224.700, max=5400, bitrate=80.283660 kbit/s, baseline_diff=-0.000000, baseline_percent=100.000%, compression=11.608x, PSNR=34.362114 dB
+320x180_gray4_jpeg_2fps: mode=gray4_jpeg, 320x180, frames=42, actual_fps=2.022472, total=229518 bytes, mean=5464.714, median=5466.000, p95=5727.250, max=5822, bitrate=88.417849 kbit/s, baseline_diff=8.134189, baseline_percent=110.132%, compression=10.540x, PSNR=32.588941 dB
+320x180_gray4_packed_zlib_2fps: mode=gray4_packed_zlib, 320x180, frames=42, actual_fps=2.022472, total=441074 bytes, mean=10501.762, median=10444.000, p95=11194.300, max=12317, bitrate=169.916148 kbit/s, baseline_diff=89.632488, baseline_percent=211.645%, compression=5.485x, PSNR=34.397012 dB
+320x180_color16_png_2fps: mode=color16_png, 320x180, frames=42, actual_fps=2.022472, total=371520 bytes, mean=8845.714, median=8607.500, p95=10578.350, max=10794, bitrate=143.121669 kbit/s, baseline_diff=62.838009, baseline_percent=178.270%, compression=19.535x, PSNR=25.384724 dB
+320x180_color16_packed_zlib_2fps: mode=color16_packed_zlib, 320x180, frames=42, actual_fps=2.022472, total=364892 bytes, mean=8687.905, median=8452.000, p95=10414.800, max=10652, bitrate=140.568347 kbit/s, baseline_diff=60.284687, baseline_percent=175.090%, compression=19.890x, PSNR=25.384724 dB
+400x225_gray8_jpeg_2fps: mode=gray8_jpeg, 400x225, frames=42, actual_fps=2.022472, total=297273 bytes, mean=7077.929, median=7063.500, p95=7473.000, max=7841, bitrate=114.519294 kbit/s, baseline_diff=34.235634, baseline_percent=142.643%, compression=12.716x, PSNR=34.942886 dB
+400x225_gray4_jpeg_2fps: mode=gray4_jpeg, 400x225, frames=42, actual_fps=2.022472, total=332268 bytes, mean=7911.143, median=7920.500, p95=8353.700, max=8554, bitrate=128.000514 kbit/s, baseline_diff=47.716854, baseline_percent=159.435%, compression=11.376x, PSNR=32.883090 dB
+400x225_gray4_packed_zlib_2fps: mode=gray4_packed_zlib, 400x225, frames=42, actual_fps=2.022472, total=636862 bytes, mean=15163.381, median=15120.500, p95=16266.050, max=18356, bitrate=245.340096 kbit/s, baseline_diff=165.056436, baseline_percent=305.592%, compression=5.935x, PSNR=34.399552 dB
+400x225_color16_png_2fps: mode=color16_png, 400x225, frames=42, actual_fps=2.022472, total=528261 bytes, mean=12577.643, median=12153.000, p95=15191.650, max=16128, bitrate=203.503435 kbit/s, baseline_diff=123.219775, baseline_percent=253.481%, compression=21.467x, PSNR=25.344339 dB
+400x225_color16_packed_zlib_2fps: mode=color16_packed_zlib, 400x225, frames=42, actual_fps=2.022472, total=520725 bytes, mean=12398.214, median=11977.000, p95=15015.100, max=15966, bitrate=200.600321 kbit/s, baseline_diff=120.316661, baseline_percent=249.864%, compression=21.777x, PSNR=25.344339 dB
+448x252_gray8_jpeg_2fps: mode=gray8_jpeg, 448x252, frames=42, actual_fps=2.022472, total=353578 bytes, mean=8418.524, median=8413.000, p95=8885.950, max=9512, bitrate=136.209823 kbit/s, baseline_diff=55.926163, baseline_percent=169.661%, compression=13.410x, PSNR=35.301071 dB
+448x252_gray4_jpeg_2fps: mode=gray4_jpeg, 448x252, frames=42, actual_fps=2.022472, total=397126 bytes, mean=9455.381, median=9467.500, p95=9996.400, max=10450, bitrate=152.985939 kbit/s, baseline_diff=72.702279, baseline_percent=190.557%, compression=11.940x, PSNR=33.060439 dB
+448x252_gray4_packed_zlib_2fps: mode=gray4_packed_zlib, 448x252, frames=42, actual_fps=2.022472, total=762082 bytes, mean=18144.810, median=18111.500, p95=19504.750, max=22433, bitrate=293.578941 kbit/s, baseline_diff=213.295281, baseline_percent=365.677%, compression=6.222x, PSNR=34.399841 dB
+448x252_color16_png_2fps: mode=color16_png, 448x252, frames=42, actual_fps=2.022472, total=626516 bytes, mean=14917.048, median=14409.500, p95=18239.600, max=18695, bitrate=241.354478 kbit/s, baseline_diff=161.070818, baseline_percent=300.627%, compression=22.705x, PSNR=25.369963 dB
+448x252_color16_packed_zlib_2fps: mode=color16_packed_zlib, 448x252, frames=42, actual_fps=2.022472, total=618164 bytes, mean=14718.190, median=14221.500, p95=18022.000, max=18517, bitrate=238.137014 kbit/s, baseline_diff=157.853354, baseline_percent=296.620%, compression=23.012x, PSNR=25.369963 dB
+480x270_gray8_jpeg_2fps: mode=gray8_jpeg, 480x270, frames=42, actual_fps=2.022472, total=393752 bytes, mean=9375.048, median=9365.500, p95=9919.950, max=10678, bitrate=151.686164 kbit/s, baseline_diff=71.402504, baseline_percent=188.938%, compression=13.824x, PSNR=35.412999 dB
+480x270_gray4_jpeg_2fps: mode=gray4_jpeg, 480x270, frames=42, actual_fps=2.022472, total=443419 bytes, mean=10557.595, median=10575.500, p95=11152.550, max=11737, bitrate=170.819518 kbit/s, baseline_diff=90.535858, baseline_percent=212.770%, compression=12.276x, PSNR=33.099458 dB
+480x270_gray4_packed_zlib_2fps: mode=gray4_packed_zlib, 480x270, frames=42, actual_fps=2.022472, total=854354 bytes, mean=20341.762, median=20276.500, p95=21857.900, max=25369, bitrate=329.125136 kbit/s, baseline_diff=248.841476, baseline_percent=409.953%, compression=6.371x, PSNR=34.401420 dB
+480x270_color16_png_2fps: mode=color16_png, 480x270, frames=42, actual_fps=2.022472, total=701871 bytes, mean=16711.214, median=16249.500, p95=20469.850, max=21005, bitrate=270.383692 kbit/s, baseline_diff=190.100032, baseline_percent=336.785%, compression=23.266x, PSNR=25.368870 dB
+480x270_color16_packed_zlib_2fps: mode=color16_packed_zlib, 480x270, frames=42, actual_fps=2.022472, total=693190 bytes, mean=16504.524, median=16007.500, p95=20249.750, max=20809, bitrate=267.039486 kbit/s, baseline_diff=186.755826, baseline_percent=332.620%, compression=23.557x, PSNR=25.368870 dB
+560x315_gray8_jpeg_2fps: mode=gray8_jpeg, 560x315, frames=42, actual_fps=2.022472, total=507535 bytes, mean=12084.167, median=12068.500, p95=12860.900, max=13999, bitrate=195.519101 kbit/s, baseline_diff=115.235441, baseline_percent=243.535%, compression=14.598x, PSNR=35.954946 dB
+560x315_gray4_jpeg_2fps: mode=gray4_jpeg, 560x315, frames=42, actual_fps=2.022472, total=575350 bytes, mean=13698.810, median=13674.500, p95=14558.450, max=15458, bitrate=221.643660 kbit/s, baseline_diff=141.360000, baseline_percent=276.076%, compression=12.877x, PSNR=33.337152 dB
+560x315_gray4_packed_zlib_2fps: mode=gray4_packed_zlib, 560x315, frames=42, actual_fps=2.022472, total=1093024 bytes, mean=26024.381, median=25851.500, p95=28055.650, max=33171, bitrate=421.068636 kbit/s, baseline_diff=340.784976, baseline_percent=524.476%, compression=6.778x, PSNR=34.403027 dB
+560x315_color16_png_2fps: mode=color16_png, 560x315, frames=42, actual_fps=2.022472, total=894967 bytes, mean=21308.738, median=20851.500, p95=25906.100, max=27345, bitrate=344.770594 kbit/s, baseline_diff=264.486934, baseline_percent=429.441%, compression=24.835x, PSNR=25.323519 dB
+560x315_color16_packed_zlib_2fps: mode=color16_packed_zlib, 560x315, frames=42, actual_fps=2.022472, total=885156 bytes, mean=21075.143, median=20622.000, p95=25686.650, max=27166, bitrate=340.991075 kbit/s, baseline_diff=260.707415, baseline_percent=424.733%, compression=25.110x, PSNR=25.323519 dB
+640x360_gray8_jpeg_2fps: mode=gray8_jpeg, 640x360, frames=42, actual_fps=2.022472, total=639531 bytes, mean=15226.929, median=15187.500, p95=16381.750, max=18122, bitrate=246.368283 kbit/s, baseline_diff=166.084623, baseline_percent=306.872%, compression=15.131x, PSNR=35.588581 dB
+640x360_gray4_jpeg_2fps: mode=gray4_jpeg, 640x360, frames=42, actual_fps=2.022472, total=726335 bytes, mean=17293.690, median=17220.500, p95=18557.350, max=19938, bitrate=279.808026 kbit/s, baseline_diff=199.524366, baseline_percent=348.524%, compression=13.323x, PSNR=33.048695 dB
+640x360_gray4_packed_zlib_2fps: mode=gray4_packed_zlib, 640x360, frames=42, actual_fps=2.022472, total=1394769 bytes, mean=33208.786, median=32974.500, p95=35959.800, max=43514, bitrate=537.310690 kbit/s, baseline_diff=457.027030, baseline_percent=669.265%, compression=6.938x, PSNR=34.404228 dB
+640x360_color16_png_2fps: mode=color16_png, 640x360, frames=42, actual_fps=2.022472, total=1140488 bytes, mean=27154.476, median=26267.500, p95=33424.950, max=36017, bitrate=439.353323 kbit/s, baseline_diff=359.069663, baseline_percent=547.251%, compression=25.454x, PSNR=25.259621 dB
+640x360_color16_packed_zlib_2fps: mode=color16_packed_zlib, 640x360, frames=42, actual_fps=2.022472, total=1128711 bytes, mean=26874.071, median=25978.500, p95=33021.450, max=35603, bitrate=434.816437 kbit/s, baseline_diff=354.532777, baseline_percent=541.600%, compression=25.720x, PSNR=25.259621 dB
+
+Профили 70–90 кбит/с:
+320x180_gray8_jpeg_2fps: mode=gray8_jpeg, 320x180, frames=42, actual_fps=2.022472, total=208403 bytes, mean=4961.976, median=4965.000, p95=5224.700, max=5400, bitrate=80.283660 kbit/s, baseline_diff=-0.000000, baseline_percent=100.000%, compression=11.608x, PSNR=34.362114 dB
+320x180_gray4_jpeg_2fps: mode=gray4_jpeg, 320x180, frames=42, actual_fps=2.022472, total=229518 bytes, mean=5464.714, median=5466.000, p95=5727.250, max=5822, bitrate=88.417849 kbit/s, baseline_diff=8.134189, baseline_percent=110.132%, compression=10.540x, PSNR=32.588941 dB
+
+Профили до baseline:
+320x180_gray8_jpeg_2fps: mode=gray8_jpeg, 320x180, frames=42, actual_fps=2.022472, total=208403 bytes, mean=4961.976, median=4965.000, p95=5224.700, max=5400, bitrate=80.283660 kbit/s, baseline_diff=-0.000000, baseline_percent=100.000%, compression=11.608x, PSNR=34.362114 dB
+
+Профили до 100 кбит/с:
+320x180_gray8_jpeg_2fps: mode=gray8_jpeg, 320x180, frames=42, actual_fps=2.022472, total=208403 bytes, mean=4961.976, median=4965.000, p95=5224.700, max=5400, bitrate=80.283660 kbit/s, baseline_diff=-0.000000, baseline_percent=100.000%, compression=11.608x, PSNR=34.362114 dB
+320x180_gray4_jpeg_2fps: mode=gray4_jpeg, 320x180, frames=42, actual_fps=2.022472, total=229518 bytes, mean=5464.714, median=5466.000, p95=5727.250, max=5822, bitrate=88.417849 kbit/s, baseline_diff=8.134189, baseline_percent=110.132%, compression=10.540x, PSNR=32.588941 dB
+
+Цветные color16-профили до 100 кбит/с:
+Нет.
+
+Профили больше 320x180 и не выше baseline:
+Нет.
+
+Максимальное разрешение до baseline:
+320x180_gray8_jpeg_2fps: mode=gray8_jpeg, 320x180, frames=42, actual_fps=2.022472, total=208403 bytes, mean=4961.976, median=4965.000, p95=5224.700, max=5400, bitrate=80.283660 kbit/s, baseline_diff=-0.000000, baseline_percent=100.000%, compression=11.608x, PSNR=34.362114 dB
+
+Максимальное разрешение до 100 кбит/с:
+320x180_gray8_jpeg_2fps: mode=gray8_jpeg, 320x180, frames=42, actual_fps=2.022472, total=208403 bytes, mean=4961.976, median=4965.000, p95=5224.700, max=5400, bitrate=80.283660 kbit/s, baseline_diff=-0.000000, baseline_percent=100.000%, compression=11.608x, PSNR=34.362114 dB
+320x180_gray4_jpeg_2fps: mode=gray4_jpeg, 320x180, frames=42, actual_fps=2.022472, total=229518 bytes, mean=5464.714, median=5466.000, p95=5727.250, max=5822, bitrate=88.417849 kbit/s, baseline_diff=8.134189, baseline_percent=110.132%, compression=10.540x, PSNR=32.588941 dB
+
+Сравнение gray4 и color16:
+Минимальный gray4 bitrate: 88.417849 кбит/с.
+Минимальный color16 bitrate: 140.568347 кбит/с.
+Размер палитры packed color16: 48 байт на кадр.
+Размер компактного заголовка packed-режимов: 16 байт на кадр.
+
+Нельзя автоматически объявлять профиль безопасным для управления ровером по одной статической метрике.
+Сравнительное изображение: data\processed\lab026b\lab026b_equal_bitrate_candidates.png
+Следующий шаг: ручная визуальная оценка пользователем.