User-Oriented Approach in Spatial and Video Coding Temporal
Chia-Chiang Ho, Wei-Ta Chu, Chen-Hsiu Hung, Ja‐Ling Wu · 2003
Present scalable coding techniques focus on enhancing the quality of the whole he when more bandwidth is available. However, not all regions in a he are equally important to user perception. This paper proposed a useroriented approach to facilitate scalable coding in spatial and temporal domains. By combining user attention and foveation models, the regions of user’s focus in a he (spatial domain) or the segment of a video clip with steady saliency values (temporal domain) are prioritized as far as perceived quality is concerned.