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

摘要： 尽管H.264标准的全零系数块检测技术目前已经得到了深入的讨论，但是由于AVS整数变换中使用了8×8块和新的指数阶量化步长的量化器，以往适合于H.264的全零块判别准则并不能直接应用于AVS。根据AVS整数变换的特点，推导出了一种适合于AVS标准的新全零块判别准则。实验结果表明，该准则在保证图像质量的同时尽量防止漏判。

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