In this paper we propose a novel approach to image compression based on three-dimensional Discrete Cosine Transformation (DCT). The basic idea is to de-correlate similar pixel blocks through three-dimensional DCT transformation. A number of adjacent pixel blocks are grouped together to form a three-dimensional data cube. Each data cube is 3D DCT transformed, quantized, and Huffman encoded. Experimental results demonstrate the effectiveness of the new approach, specifically for medical and space exploration images. 1
To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.