Accession Number : AD0723657

Title :   A Digital Photographic Data Processor and Display System.

Descriptive Note : Final rept. 1 Sep 70-28 Feb 71,

Corporate Author : SPATIAL DATA SYSTEMS INC GOLETA CALIF

Personal Author(s) : Athearn,Ralph E. ; Rutland,David F.

Report Date : 01 MAR 1971

Pagination or Media Count : 13

Abstract : A digital picture processing system for extracting information from photographic film records was constructed and delivered. The system uses a Digital Video Converter that permits picture data transfer and display between a Digital Processor and a standard 525 line Television System. The Digital Processor has an 8000 word core memory and a Digital Tape Unit for storage and processing of digitized pictures. The Digital Video Converter stores a complete digital picture consisting of 384 x 489 picture elements on a magnetic disc. The picture elements, each having one of 256 possible shades of grey, are refreshed at standard television rates and are displayed in black and white on a television monitor or analyzed in a color television densitometer display. Television pictures of photographic transparencies are produced from a precision camera, digitized at an 8 MHz sampling rate and recorded on the disc for subsequent analysis by the Data Processor. Software for self-checking the system, transferring picture data and digitizing pictures was supplied with the equipment. (Author)

Descriptors :   (*PHOTOGRAPHIC PROCESSORS, DIGITAL SYSTEMS), (*DATA PROCESSING, PHOTOGRAPHIC IMAGES), PHOTOGRAPHIC ANALYSIS, DISPLAY SYSTEMS, INPUT OUTPUT DEVICES, ATMOSPHERIC SOUNDING, TELEVISION DISPLAY SYSTEMS, COLOR TELEVISION

Subject Categories : Computer Programming and Software
      Computer Hardware
      Photography

Distribution Statement : APPROVED FOR PUBLIC RELEASE