Title :
Key frame quantisation error reduction in distributed video coding
Author :
Kumar, Vipin ; Sengupta, Sabyasachi
Author_Institution :
Electron. Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India
Abstract :
Proposed is a post-processing scheme to reduce the quantisation noise of the key frames by using the decoded neighbour Wyner-Ziv frames in a distributed video coding framework. The proposed scheme results in a quality gain of up to 2 dB for the key frames and improves the overall rate-distortion performance of the codec without adding any additional complexity at the encoder.
Keywords :
quantisation (signal); rate distortion theory; video coding; Wyner-Ziv frames; distributed video coding; key frame quantisation error reduction; quantisation noise; rate distortion performance;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.0400
