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介绍一种视频图像三维子带编码方法，它采用非对称滤波器进行子带划分，对各子带进行量化时，低频子带采用非对称树结构矢量量化方法，高频子带采用几何矢量量化方法。实验证明，由此构成的比特率为１１２ｋｂ／ｓ视频图像编码器获得了良好的重建图像质量。
A three-dimensional sub-band coding method for video images is introduced, which uses sub-band division by asymmetric filters. When quantizing each sub-band, the low frequency sub-band adopts an asymmetric tree structure vector quantization method, and the high frequency sub-band adopts a geometric vector quantization method. Experimental results show that the resulting bit rate of 112kb / s video image encoder to obtain a good reconstructed image quality.