An Implement of Visual Texture Coding in MPEG-4

The new standard MPEG 4 not only has the excellent compression impact on the motion video , but also defines Visual Texture Coding, which is used for the compression of still image. MPEG 4 VTC can encode arbitrarily shaped still object as well as producting progressive scalable bitstream which is robust to error. A encoding frame consilient with syntax of MPEG 4 VTC is presented . This paper offers different scanning and quantization algorithm according to the syntax of MPEG 4 VTC. Comparison with other compression standard for still image shows that the VTC has better rate distortion performance and many attractive useful characteristic.