Compression and Progressive Transmission of Digital Images

Examples of image compression using our techniques.

This page shows examples of how three different images behave at various levels of compression using the wavelet compression of R. L. White. Note that in progressive transmission the level of compression varies with time, so that a compression factor of 50, for example, represents the received image after only 2% of the total transmission time of the raw image. The images below are representative samples of astronomical images, weather images, and other types of images.

Additional information is available, including examples of our image compression, the technical section of our proposal, further references, a short press release, my IITA flyer, and my IITA product profile.,

This work is funded by NASA Goddard's Digital Library Technology Project, part of the Information Infrastructure Technology and Applications component of the High Performance Computing and Communications Program.