关键词: 视频编码, 数字音视频编解码技术标准（AVS）, 全零块检测, 整数变换

Abstract: The all-zero blocks detection technology in H.264 standard has been discussed in depth，but the use of 8×8 block in AVS integer transform and the use of quantizer which adopted the new exponent rank quantization step，the past all-zero blocks detection algorithm suitable for H.264 can not be directly applied to AVS.According to the features of AVS integer transform，a new all-zero blocks detection algorithm suitable for AVS standard is deduced.The results show that this method can obtain a better image quality，and prevent miss-judgment largely.

Key words: video coding, Audio Video coding Standard（AVS）, all-zero block detection, integer transform