55 search results - page 5 / 11 » Region-Based Video Segmentation Using DCT Coefficients |
ISCAS
2005
IEEE
14 years 1 months ago
2005
IEEE
Although many researches have investigated transparent scrambling video techniques, an issue of which transcoding relates to downsizing scrambled video without unscrambling has ha...
TCSV
2002
13 years 7 months ago
2002
Transform approximations are explored for speeding up the software compression of images and video. Approximations are used to replace the regular discrete cosine transform (DCT) w...
ICIP
2002
IEEE
14 years 9 months ago
2002
IEEE
Transform approximations are explored for speeding up the software compression of images and video. Faster approximations are used to replace the regular DCT whenever only few DCT...
TCSV
2010
13 years 2 months ago
2010
Abstract--This paper proposes a no-reference quality assessment metric for digital video subject to H.264/AVC encoding. The proposed metric comprises two main steps: coding error e...
TIP
2008
13 years 7 months ago
2008
Abstract--In this paper, we derive bounds on the structural similarity (SSIM) index as a function of quantization rate for fixed-rate uniform quantization of image discrete cosine ...