Low-Complexity Saliency Detection Algorithm for Fast Perceptual Video Coding

Low-Complexity Saliency Detection Algorithm for Fast Perceptual Video Coding

A low-complexity saliency detection algorithm for perceptual video coding is proposed; low-level encoding information is adopted as the characteristics of visual perception analysis. Firstly, this algorithm employs motion vector (MV) to extract temporal saliency region through fast MV noise filtering and translational MV checking procedure. Secondly, spatial saliency region is detected based on...

Low Complexity Video Coding for Teleconferencing

We describe a video compression system suitable for teleconferencing applications based on Hierarchical Table-Lookup Vector Quantization and Variable Length Inter-Block Noiseless Coding (VL-IBNC). We apply IBNC selectively to utilize both the inter-frame and intraframe correlation in the video signal. This structure has low encoding and decoding complexity and low bit-rate performance comparabl...

Fast prediction algorithm for multiview video coding

The H.264/multiview video coding (MVC) standard has been developed to enable efficient coding for three-dimensional and multiple viewpoint video sequences. The interview statistical dependencies are utilized and an interview prediction is employed to provide more efficient coding; however, this increases the overall encoding complexity. Motion homogeneity is exploited here to selectively enable...

Low-Complexity Face-Assisted Video Coding

This paper presents a novel face-assisted video coding scheme to enhance the visual quality of the face regions in video telephony applications. A skin-color based face detection and tracking scheme is proposed to locate the face regions in real-time. After classifying the macroblocks into the face and non-face regions, we present a dynamic distortion weighting adjustment (DDWA) scheme to drop ...

Perceptual methods for video coding