During video coding, a transform such as a discrete cosine transform (DCT) is applied to blocks of image data (e.g., motion-compensated interframe pixel differences) and the resulting transform coefficients for each block are quantized at a specified quantization level. Notwithstanding the fact that...http://www.google.fr/patents/US6263021?utm_source=gb-gplus-shareBrevet US6263021 - Treating non-zero quantized transform coefficients as zeros during video compression processing
Treating non-zero quantized transform coefficients as zeros during video ...
