Two-Dimensional Image Coding By Micro-Adaptive Picture Sequencing (MAPS)

Anton E. LaBonte

doi:10.1117/12.955702

8 December 1977 Two-Dimensional Image Coding By Micro-Adaptive Picture Sequencing (MAPS)

Anton E. LaBonte

Proceedings Volume 0119, Applications of Digital Image Processing; (1977) https://doi.org/10.1117/12.955702
Event: 21st Annual Technical Symposium, 1977, San Diego, United States

Abstract

Micro-Adaptive Picture Sequencing (MAPS), a computationally-efficient contrast-adaptive variable-resolution digital image coding technique, is described. Both compression and decompression involve only integer operations with no multiplies or explicit divides. The compression step requires less than 20 operations per pixel and the decompression step even fewer. MAPS is based on the combination of a simple vision heuristic and a highly nonlinear spatial encoding. The heuristic asserts that the fine detail in an image is noticed primarily when it is sharply defined in contrast while larger more diffuse features are perceived at much lower contrasts. The coding scheme then exploits the spatial redundancy implied by this heuristic to maintain high resolution where sharp definition exists and to reduce resolution elsewhere. Application of MAPS to several imagery types with compressions extending to below 0.2 bits per pixel is illustrated.

Citation Download Citation

Anton E. LaBonte "Two-Dimensional Image Coding By Micro-Adaptive Picture Sequencing (MAPS)", Proc. SPIE 0119, Applications of Digital Image Processing, (8 December 1977); https://doi.org/10.1117/12.955702

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