Translator Disclaimer
1 April 1994 Fast source-based dithering for networked digital video
Author Affiliations +
Source-based dithering is a set of techniques designed to maximize the performance of real- time networked digital video systems that encode and decode video entirely in software. Usually frame grabber hardware presents frames in a 24 bit per pixel (bpp) format. However, most hosts are only equipped with single or eight bit deep displays and thus the color depth of the video must be reduced at some point. If the encoder reduces the color depth, the bandwidth required to carry the video on the network is lowered by a factor of 24 or 3 respectively, and the computational load is lightened on the receiving hosts. The color depth reduction algorithm must be efficient since the resulting frame rate, and thus the degree to which the illusion of motion is preserved, depends on how quickly a pixel can be processed. We use dithering algorithms chosen for efficiency and a contrast enhancement algorithm to improve image quality.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tom Q. Nguyen, Jonathon Kay, and Joseph Pasquale "Fast source-based dithering for networked digital video", Proc. SPIE 2188, High-Speed Networking and Multimedia Computing, (1 April 1994);


Analysis of degradation of video images
Proceedings of SPIE (August 31 1995)
(HSI) Color Processing On Personal Computers
Proceedings of SPIE (December 15 1988)
SAMPEG: a scene-adaptive parallel MPEG-2 software encoder
Proceedings of SPIE (December 28 2000)

Back to Top