Image compression and decompression device and its compression and decompression method

摘要

The present invention discloses an image compression and decompression device and its compression and decompression method. The apparatus comprises first signal processing means for compressing data of a blocked video at the time of compressing an image, restoring the compressed compressed video signal blocked at the time of restoring the image, and outputting the restored video signal as a restored data signal; And a second signal processing means for obtaining a residual and compressing it in response to the ROI information, and inputting and restoring the compressed residual data upon reconstruction of the image, and adding the reconstructed data to output the plurality of digital signals. By parallel processing using a dedicated processor, high-speed compression and reconstruction are possible for sophisticated images with large luminance values. , High compression efficiency, can be installed on a personal computer to provide compression and restoration at the same time on a single board Has been used in the same place as remote medical care system it is possible to accurately while reducing the waiting time for doctors and patients to medical image compression and decompression, it is capable of simultaneously performing the compression and decompression effects.