Study in the Area of Satellite Meteorology. Volume III. Data Compaction and Image Display.
Abstract
Meteorological satellites generate great volumes of digital imagery. For military field use, such data must be stored at minimum expense and with minimum equipment. To meet these requirements the satellite pictures should be carefully cropped to the geographical area of interest; the cropped data abstracted with a peripheral-cancellation algorithm; the spatially redundant portions of the imagery eliminated with transform encoding; and the temporally redundant portions of the imagery deleted with predictive encoding. Additional data compression is possible by noting the spectral redundancy that exists between the imagery gathered in the far-infrared, near-infrared, and visible. Further picture compaction is obtained by taking advantage of the psycho-physical characteristics of the human eye--e.g., its high sensitivity to spatial changes in luminance patterns and low sensitivity to spatial changes in chrominance patterns. The meteorological usefulness of multispectral satellite imagery depends importantly on the optical quality of the image display.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1974
- Accession Number
- ADA005037
Entities
People
- David G. Falconer
Organizations
- SRI International