Video signals are encoded and decoded using a set of quantization tables that is generated from a base matrix and a scale matrix, which are both explicitly encoded into the encoded video bitstream. The sets of quantization tables may be changed as often as needed as long as the new base...http://www.google.com.tw/patents/US5812788?utm_source=gb-gplus-share專利 US5812788 - Encoding/decoding video signals using quantization tables based on explicitly encoded base and scale matrices
Encoding/decoding video signals using quantization tables based on ...
