DocumentCode
1184923
Title
Simple method for estimating distortion caused by DCT coefficient drop in compressed domain
Author
Kim, J.-G. ; Kim, J.-S. ; Kim, H.-M.
Author_Institution
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Volume
40
Issue
25
fYear
2004
Firstpage
1581
Lastpage
1583
Abstract
A simple estimation method of the distortion caused by the discrete cosine transform (DCT) coefficient dropping for rate adaptation is presented. The proposed method is based on the investigation of statistical and empirical properties of the distortion, and then modelled in a monotonically decreased manner. It is expected that the method can be employed to allocate effectively the distortion among frames in coefficient drop transcoding applications.
Keywords
discrete cosine transforms; distortion; estimation theory; transcoding; DCT coefficient drop; coefficient drop transcoding; discrete cosine transform; distortion estimation;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20046596
Filename
1368443
Link To Document