Investigation of the Adaptive Discrete Cosine Transform Technique for Still Picture Data Compression.

摘要

The purpose of this study was to investigate the effectiveness of the Adaptive Discrete Cosine Transform Technique when applied to the transmission of gray scale imagery via Group 4 facsimile. The Adaptive Discrete Cosine Transform is a gray scale and/or color coding technique showing the promise of large compression ratios and good picture quality for the coding and transmission of pictorial data. No comprehensive study analyzing the Adaptive Discrete Cosine Transform, as applied to Group 4 facsimile. The Adaptive Discrete Cosine Transform is a gray scale and/or color coding technique showing the promise of large compression ratios and good picture quality for the coding and transmission of pictorial data. No comprehensive study analyzing the Adaptive Discrete Cosine Transform, as applied to Group 4 facsimile systems, under carefully controlled conditions, has been performed prior to this investigation. (KR)