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ICIP
2001
IEEE

Compression and transmission of depth maps for image-based rendering

12 years 1 months ago
Compression and transmission of depth maps for image-based rendering
We consider applications using depth-based Imagebased rendering (IBR), where the synthesis of arbitrary views occur at a remote location, necessitating the compression and transmission of depth-maps. Traditional image compression has been designed to provide maximum perceived visual quality, and a direct application is suboptimal for depth-map compression, since depth-maps are not directly viewed. In other words, the sensitivity of the rendering error depends on image content as well as on the depth map; we propose two improvements to take this into account. Firstly, we consider region-of-interest (ROI) coding, where we identify those regions of the image where accurate depth is most crucial. Secondly, we reshape the dynamic range of the depth map. Our experiments show a significant improvement in coding gain
Ravi Krishnamurthy, Bing-Bing Chai, Hai Tao, Srira
Added 25 Oct 2009
Updated 27 Oct 2009
Type Conference
Year 2001
Where ICIP
Authors Ravi Krishnamurthy, Bing-Bing Chai, Hai Tao, Sriram Sethuraman
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