Block adaptive rate controlled image data compressionA block adaptive rate controlled (BARC) image data compression algorithm is described. It is noted that in the algorithm's principal rate controlled mode, image lines can be coded at selected rates by combining practical universal noiseless coding techniques with block adaptive adjustments in linear quantization. Compression of any source data at chosen rates of 3.0 bits/sample and above can be expected to yield visual image quality with imperceptible degradation. Exact reconstruction will be obtained if the one-dimensional difference entropy is below the selected compression rate. It is noted that the compressor can also be operated as a floating rate noiseless coder by simply not altering the input data quantization. Here, the universal noiseless coder ensures that the code rate is always close to the entropy. Application of BARC image data compression to the Galileo orbiter mission of Jupiter is considered.
Document ID
19810037497
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Rice, R. F. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hilbert, E. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lee, J.-J. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Schlutsmeyer, A. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1979
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: NTC ''79; National Telecommunications Conference