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This paper presents a new scalable coding (SC) algorithm considering the properties of human visual system (HVS), especially the importance of structures and saliencies for visual perception. The proposed method first finds the salient regions in an image and then applies structure preserving filter to the regions excluding the saliencies. This image is encoded with a pre-specified quantization parameter...
The newly introduced in-loop filter in H.265/HEVC, i.e., sample adaptive offset (SAO), can effectively improve the coding efficiency as well as the subjective quality of encoded videos. However, complex operations are needed in the procedure of SAO which imposes challenges for real-time applications. In this paper, the temporal relationships of two SAO parameters between the temporal base layer and...
In the newly established video coding standard H.265/High Efficiency Video Coding (HEVC), temporal distortions are introduced under certain coding configurations, which are perceptually annoying at medium and low bitrates. In this paper, two typical temporal distortions due to temporal quality fluctuations in HEVC, i.e., temporal flicker artifact (TFA) and temporal pumping artifact (TPA) are explored...
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