IDEAL
2004
Springer
13 years 10 months ago
2004
Springer
Abstract. Image compression methods such as JPEG use quantisation of discrete cosine transform (DCT) coefficients of image blocks to produce lossy compression. During decoding, an...
ICMCS
2006
IEEE
13 years 10 months ago
2006
IEEE
This paper proposes a novel analytical model to predict zero quantized DCT coefficients for fast video encoding. The dynamic range of quantized DCT coefficients are analyzed and...
DATE
2006
IEEE
13 years 10 months ago
2006
IEEE
We present a dynamic bit-width adaptation scheme in DCT applications for efficient trade-off between image quality and computation energy. Based on sensitivity differences of 64 ...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
The three-dimensional discrete cosine transform (3D DCT) has been proposed as an alternative to motion-compensated transform coding for video content. However, so far no definiti...