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Automatic detection and prioritized image transmission system and method

  • US 5,521,634 A
  • Filed: 06/17/1994
  • Issued: 05/28/1996
  • Est. Priority Date: 06/17/1994
  • Status: Expired due to Term
First Claim
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1. A video image compression system for automatically detecting a target in an area of interest and transmitting a digital image of the target wherein a digital image of nontarget information in the area of interest is automatically reduced in size before transmission thereof comprising:

  • a target detector for searching an area of interest, said target detector detecting at least one of an acoustic, seismic, infrared, electromagnetic, trip-wire, and visual signal related to potential targets;

    a system controller for evaluating whether a signal from potential targets detected by said target detector is related to a target, said system controller comprising,i) means for evaluating signals from potential targets to determine whether such signals identify a target,ii) means for determining a direction to an identified target,iii) means for using the determined direction to establish a target box within which the identified target is located, andiv) means for following target movement and retaining the target in said target box;

    a camera system that receives commands from said system controller for moving said camera system to said target box so that said camera system has said target box in a field of view, said camera system comprising,i) means for automatically adjusting the field of view and focus of said camera system so that an image of said target box and a portion of an adjacent area of interest can be generated by said camera system, andii) means for generating a digital signal representing said target box and said adjacent area of interest;

    said system controller further comprising,v) means for reducing the size of said digital signal of the adjacent area of interest that is to be transmitted,vi) means for providing instructions for moving said camera system as said target box moves so that said target box is maintained in said camera system field of view, andvii) means for designating a new adjacent area of interest uncovered by movement of said target box for transmission; and

    means for transmitting on a radio frequency said digital signal of said target box and said reduced size digital signal of said adjacent area of interest.

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