20 search results - page 4 / 4 » Reduction of Blocking Artifacts in Block Transformed Compres... |
EVOW
2007
Springer
13 years 11 months ago
2007
Springer
Abstract. Overcompression is the process of post-processing compressed images to gain either further size reduction or improved quality. This is made possible by the fact that the ...
ICASSP
2010
IEEE
13 years 5 months ago
2010
IEEE
This paper proposes a new approach to combined spatial (Intra) prediction and adaptive transform coding in block-based video and image compression. Context-adaptive spatial predic...
TOG
2008
13 years 5 months ago
2008
We reduce transmission bandwidth and memory space for images by factoring their repeated content. A transform map and a condensed epitome are created such that all image blocks ca...
VLSID
2004
IEEE
14 years 5 months ago
2004
IEEE
demanding algorithm of a video encoder. It is known that about 60% ~ 80% of the total computation time is consumed for motion estimation [1]. The second is its high impact on the v...
IJNSEC
2007
13 years 5 months ago
2007
In this paper, we propose a discrete cosine transform (DCT) based spread spectrum data-hiding algorithm that is resilient to statistical attacks. Unlike other spread spectrum base...