Showing papers on "Lossless compression published in 1975"
30 Oct 1975
TL;DR: A real-time digital video processor using Hadamard transform techniques to reduce video bandwidth is described and algorithms related to spatial compression, temporal compression, and the adaptive selection of parameter sets are described.
Abstract: A real-time digital video processor using Hadamard transform techniques to reduce video bandwidth is described. The processor can be programmed with different parameters to investigate various algorithms for bandwidth compression. The processor is also adaptive in that it can select different parameter sets to trade off spatial resolution for temporal resolution in the regions of the picture that are moving. Algorithms used in programming the system are described along with results achieved at various levels of compression. The algorithms relate to spatial compression, temporal compression, and the adaptive selection of parameter sets.© (1975) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
7 citations