Research Article

Efficient Region-of-Interest Scalable Video Coding with Adaptive Bit-Rate Control

Table 8

Bit-rate control experimental results for “CITY,” “CREW,” “HARBOR,” “ICE,” and “SOCCER” video sequences (ROI QP in Layer 1 is equal to 37; the rest is determined by the proposed bit-rate control scheme; the detailed test conditions are provided in Table 7).

Video sequence Target bit-rate for Layer 1 with the proposed bit-rate controlLayers
Actual bit-rate: Layer 1 with the proposed bit-rate control (ROI QP = 37, the rest by the proposed rate control) Actual bit-rate of Layer 0 with JSVM 9.19 bit-rate control (QP = 40)
Bit-rate [kb/s]Bit-rate [kb/s]Average PSNR [dB]Bit-rate [kb/s]Average PSNR [dB]

CITY400406.029.7713.831.7
450 445.030.1
500464.530.1
550471.430.4

CREW400437.031.8897.734.5
450446.531.9
500455.531.9
550455.531.9

HARBOR600598.428.01628.731.1
650683.728.5
700728.028.7
750729.028.7

ICE350383.134.6542.237.3
400386.735.0
450391.335.2
500391.335.2

SOCCER600557.228.71119.232.0
650559.628.7