Institute for Data Analysis and Visualization

For high quality applications, we have developed a coding technique that produces no visible degradation, that we denote as perceptually transparent. A compression significantly higher than error free codes is achieved. In a progressive scheme, a reduced resolution image is used for the transmission of high quality still images. To use the lower resolution images effectively, analysis based interpolation provides the estimate of the higher resolution image and reduces the incremental information transmitted. This approach may also lead to compressed images of higher quality that the original.