Accession Number : ADA141162

Title :   Interim Report for Grant AFOSR-82-0033.

Descriptive Note : Rept. for 1 Jan-31 Dec 83,

Corporate Author : TEXAS A AND M UNIV COLLEGE STATION DEPT OF ELECTRICAL ENGINEERING

Personal Author(s) : Halverson,D R

PDF Url : ADA141162

Report Date : Feb 1984

Pagination or Media Count : 12

Abstract : A number of results were obtained pertaining to signal detection and block truncation coding for image compression. These results led to improved performance over previous approaches, with special attention given to methods which required less statistical knowledge and which were easier to implement. In particular, use of robustness techniques was employed to allow the exploitation of whatever knowledge was available, while retaining insensitivity to the remaining inexactness in knowledge. In addition, because the presence of dependency in the underlying random processes often complicates detector design, investigations into when weak dependency could be ignored were undertaken. Finally, some results were obtained which allowed relaxing stationarity assumptions which were placed on the signal in earlier work. (Author)

Descriptors :   *Signal processing, *Image processing, *Data compression, Coding, Truncation, Algorithms, Research management, Signal to noise ratio, Noise

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE