Method of obtaining multizone images of objects and multizone system therefor

• US 4,477,829 A
• Filed: 08/21/1981
• Issued: 10/16/1984
• Est. Priority Date: 08/21/1981
• Status: Expired due to Fees

• Current Assignee: Institut Kosmicheskish Issledovany Akademi NAUK SSS
• Original Assignee: Institut Kosmicheskish Issledovany Akademi NAUK SSS
• Inventors: Chesnokov, Jury M., Barabanov, Stanislav D., Kraush, Klavdia A., Ziman, Yan L., Dunaev, Boris S., Kottsov, Vladimir A., Drokhanov, Alexei N.
• Primary Examiner(s): Martin, John C.
• Application Number:
  US06/295,133
• Time in Patent Office: 1,152 Days
• Field of Search: 358/109, 358/106, 358/107, 358/81, 358/1, 358/21 R, 358/41, 358/206, 358/208, 356/71, 340/146.3 P, 350/162 SF, 350/162.12, 350/162.13, 350/162.14, 364/515, 382/31, 382/17, 343/5 MM
• US Class Current: 348/207.99
• CPC Class Codes: G02B 27/46 Systems using spatial filters

Abstract

A method of obtaining multizone images of objects by the steps of converting the image of an object into an image of its spatial-frequency spectrum conveying information on spatial structure of the object and separating in the spectrum at least one zone whose radiant flux is integrated in real-time to produce video signals of the respective object image. Arranged successively in a multizone system ahead of a spectrum separator means are a spatial-time modulator and an optical means for converting the image of the object into the image of the spatial-frequency spectrum.

Claims

1. A method of obtaining multizone images of objects comprising the steps of uninterruptedly optically scanning an object whose image is to be obtained and simultaneously forming a radiant flux from each portion of said object corresponding to an instantaneously scanned field of view, and forming the image of the object, converting said image of said object into an image of a spatial-frequency spectrum conveying information on spatial structure of the object, separating into zones said spatial frequency spectrum and detecting and measuring the varying intensity of radiant flux corresponding to the various zones and integrating the radiant flux in each zone in real-time, while converting the image of said object into a spatial-frequency spectrum dividing the first-mentioned radiant flux and converting the image of said object into an image of an electromagnetic spectrum, separating into zones said electromagnetic spectrum and detecting and measuring the varying spectral radiant intensity of radiant flux corresponding to the various last-mentioned zones and integrating the radiant flux in each last-mentioned zone in real time, developing thereby corresponding spatial and multispectral video signals synchronized with the scanning of said field of view, and coding the spatial video signals with different colors in accordance with the corresponding multispectral video signals so as to form a color representation of the spatial and multispectral content of the object.