Research Article

Optimized Rate Control Algorithm of High-Efficiency Video Coding Based on Region of Interest

Table 2

Experimental comparison data between the ORC algorithm and the K0103 algorithm.

Target bit rate (kbps)HM10.0ORC algorithm (dB)
Y-PSNR (dB)Actual coding bit rate (kbps) (%)Y-PSNR (dB)Actual coding bit rate (kbps) (%)

Traffic50032.17500.2960.29632.17500.1250.1250.00
100034.411000.0140.01434.441000.2270.2270.03
200036.741999.8130.18736.822000.0160.0160.08
400038.954000.0540.05439.024000.1080.1080.07
PeopleOnStreet50036.83500.3010.30136.88500.1360.1360.05
100038.071000.0650.06538.121000.2250.2250.05
200040.242000.1120.11240.262000.1140.1140.02
400042.514000.0310.03142.574000.1070.1070.06

BasketballDrive50029.14500.2130.21329.25500.1410.1410.11
100031.41999.7840.21631.481000.1130.1130.07
200033.572000.0740.07433.592000.1160.1160.02
400035.714000.1010.10135.904000.0000.0000.19
Parkscene50033.27500.1860.18633.35499.8470.1530.08
100035.461000.2140.21435.501000.2180.2180.04
200037.712000.1030.10337.772000.2360.2360.06
400040.354000.0110.01140.464000.2310.2310.11

FourPeople50037.14500.1940.19437.19500.6910.6910.05
100039.931000.0580.05839.971000.6370.6370.04
200041.842000.1960.19641.922000.3140.3140.08
400043.594000.1120.11243.714000.1050.1050.12
Johnny50038.83504.1374.13738.87500.4110.4110.04
100041.62999.0840.08441.72999.5790.4210.10
200043.752000.2530.25343.822000.3040.3040.07
400046.144000.1780.17846.254000.2250.2250.11

BasketballDrill50032.13500.1290.12932.15500.1170.1170.02
100035.011000.0950.09535.051000.2060.2060.04
200038.262000.1400.14038.332000.0410.0410.07
400041.573999.2130.18741.634000.1000.1000.06
BQMall50029.83500.1970.19729.88500.1710.1710.05
100032.171000.0880.08832.251000.2310.2310.08
200035.012000.2440.24435.132000.0360.0360.12
400037.584000.1850.18537.654000.2450.2450.07

BasketballPass50036.84500.0500.05036.90500.0450.0450.06
100040.461000.1880.18840.481000.3210.3210.02
200042.972000.1760.17643.041999.7960.2040.07
400045.624000.0710.07145.734000.1130.1130.11
BQSquare50031.74500.0830.08331.76500.1680.1680.02
100034.371000.1260.12634.421000.1120.1120.05
200036.821999.7650.23536.852000.0090.0090.03
400041.134000.1730.17341.214000.1050.1050.08

Average0.2440.1900.065