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

data/processed/lab026/lab026_profiles.csv

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+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.