An adaptive quantization constrain set ( AQCS ) was proposed by using statistical property of quantization errors based on theory of projection onto the Narrow Quantization Constrain Set ( NQCS ) .
根据窄量化约束集（NQCS）理论，利用量化误差的统计特性，提出了一种改进量化约束集（AQCS）。
aqcs