Issue No. 04 - April (1975 vol. 24)
H. Stark , Department of Engineering and Applied Sciences, Yale University
An optical-digital computer (ODC) that enables parallel processing of images is discussed. A number of optical and analog electronic preprocessing operations are described. These include the use of the texture variance to separate objects in an image on the basis of texture, application of autocorrelation techniques to find hidden periodicities in images, masking on the basis of color, Fourier analysis, and planimetric analysis of color scenes. A particular design of an ODC is discussed. The computer consists of an optical system, an image analyzer, a bandwidth compressor and digitizer, and a digital computer. A number of applications are furnished. Emphasis is given to processing aerial and radiographic imagery.
Digital image processing, image processing, optical data processing, parallel processing, pattern recognition.
H. Stark, "An Optical-Digital Computer for Parallel Processing of Images," in IEEE Transactions on Computers, vol. 24, no. , pp. 340-347, 1975.