Variable block-size interpolative vector quantization of images

Recently, variable block size image coding techniques have been applied in low bit rate image coding applications. However, it intrinsically produces highly visible blocking effects. For fixed block-size vector quantization (VQ), has been devised to tackle the problem. In the paper, a variable block-size interpolative VQ technique is proposed for image coding. Experimental results demonstrate that superior image quality with no visible blocking artifacts at approximately 0.49 bit/pel can be achieved by the proposed scheme. In addition, complexity increase is negligible