Efficient Region-of-Interest Scalable Video Coding with Adaptive Bit-Rate Control
Table 7
Test conditions for performing the tests/evaluation.
Settings
All tested video sequences
QP settings
Base-layer (Layer 0), which only contains the ROI
40
Enhancement layer (Layer 1), which contains both the ROI and the background region
Is adaptively varied from 20 to 40, depending on the ROI QP: for ROI QP = 20, the background region QP is varied from 20 to 40; for ROI QP = 37, and the background region QP is varied from 37 to 40. The ROI was selected at the middle of the frame for all sequences.
Spatial resolution
Base-layer (Layer 0)
CIF (352 × 288)
Enhancement layer (Layer 1)
4CIF/SD (704 × 576)
Frame rate
Base-layer (Layer 0)
30 fps
Enhancement layer (Layer 1)
30 fps
Coding options used
Motion vector (MV) search range is 16; number of coded frames is 100 to 300; fast search is ON; number of reference frames is 1; GOP size is 16; GOP type is IPPP.
