| Paper: | IMDSP-L1.6 | ||
| Session: | Image Coding | ||
| Time: | Tuesday, May 16, 12:10 - 12:30 | ||
| Presentation: | Lecture | ||
| Topic: | Image and Multidimensional Signal Processing: Still Image Coding | ||
| Title: | Tarp Filtering of Block-Transform Coefficients for Embedded Image Coding | ||
| Authors: | Vijay Shah, James Fowler, Nicholas Younan, Mississippi State University, United States | ||
| Abstract: | Tarp filtering, an image coder with a simple implementation, is coupled with a block-based discrete cosine transform equipped with pre- and postfiltering. The prefilter reduces intra-block and inter-block correlation of the block-based coefficients, resulting in coefficients that are less correlated and thereby more suitable to tarp filtering. Experimental results show that the proposed coder achieves a significant improvement in rate-distortion performance as compared to the corresponding tarp coder in its original wavelet-based formulation for images with highly detailed content. A similar gain over JPEG2000 is seen for these same images, while, for images that are mostly smooth, the proposed coder performs comparably to JPEG2000. | ||
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