C.A. Gonzales, Lascoe A. Allman, et al.
Signal Processing: Image Communication
Paper
Motion Video Adaptive Quantization in the Transform Domain
Abstract
We have developed a minimax adaptive quantization algorithm that operates in the Discrete Cosine Transform domain. The algorithm is designed to optimize image quality by adapting a quantizer scaling factor to the local characteristics of the video pictures while preserving a constraint on the average output bit rate. The algorithm is well suited for real-time encoder implementations of current video compression standards, such as MPEG and H.261. © 1991 IEEE
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