|
Visibility of DCT basis functions: Effects of display resolution (1994)
The JPEG, MPEG, and CCITT H.261 image compression standards, and several proposed HDTV schemes, employ the Discrete Cosine Transform (DCT) as a basic mechanism [1, 2]. Typically the DCT is applied to 8 by 8 pixel blocks, followed by uniform quantization of the DCT coefficient matrix. The quantization bin-widths for the various coefficients are specified by a quantization matrix (QM). The QM is not defined by the standards, but is supplied by the user and stored or transmitted with the compressed
basis, DCT, display, Effects, functions, resolution, Visibility
Proceedings, Data Compression Conference, Snowbird, Utah, IEEE Computer Society Press, pp. 371-379
|
