218 search results - page 15 / 44 » Directional Discrete Cosine Transforms for Image Coding |
TCSV
2008
13 years 7 months ago
2008
This paper proposes an efficient two-description image coding technique. The two side descriptions of an image are generated by quincunx subsampling. The decoding from any side des...
TVLSI
1998
13 years 7 months ago
1998
—In most low-power VLSI designs, the supply voltage is usually reduced to lower the total power consumption. However, the device speed will be degraded as the supply voltage goes...
TASLP
2008
13 years 7 months ago
2008
This paper investigates the use of sparse overcomplete decompositions for audio coding. Audio signals are decomposed over a redundant union of modified discrete cosine transform (M...
ICIP
2007
IEEE
14 years 9 months ago
2007
IEEE
We present a method to compute the steganographic capacity for images, with odd-even based hiding in the quantized discrete cosine transform domain. The method has been generalize...
DCC
2008
IEEE
13 years 9 months ago
2008
IEEE
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 transform...