Title :
Analysis of CFA video encoding efficiency
Author :
Pei-Sin Liaw ; Ting-Lan Lin ; Tsai-Ling Ding ; Shih-Lun Chen
Author_Institution :
Dept. of Electron. Eng., Chung Yuan Christian Univ., Zhongli, Taiwan
Abstract :
CFA (Color Filter Array) image and video compressions are discussed in this paper. Traditionally, the CFA image is demosaicked before compression. In a state-of-the-art method, the CFA is compressed before the demosaicking processed in RGB domain. In this paper, we proposed to compress the CFA video in YCbCr domain with the same amount of data as in CFA before compression. Compared with the state-of-the-art method, the proposed work improves the bitrate reduction by 37% with some CPSNR loss.
Keywords :
data compression; filtering theory; image colour analysis; image segmentation; video coding; CFA video encoding; RGB domain; YCbCr domain; bitrate reduction; color filter array; demosaicking process; image compressions; video compressions; Arrays; Image coding; Image color analysis; Image reconstruction; Image resolution; Interpolation; Video compression; CFA (Color Filter Array); H.264; demosacking; video compression;
Conference_Titel :
Consumer Electronics - Taiwan (ICCE-TW), 2015 IEEE International Conference on
Conference_Location :
Taipei
DOI :
10.1109/ICCE-TW.2015.7216820
