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Real-time edge processing unit

  • US 4,213,150 A
  • Filed: 04/21/1978
  • Issued: 07/15/1980
  • Est. Priority Date: 04/21/1978
  • Status: Expired due to Term
First Claim
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1. A system for processing video data in digital form to identify and enhance pictorial edges comprising:

  • a. window generator means for operating on the input video data for generating digital data in parallel form which represents a sequence of 3×

    3 arrays of picture elements, and generating digital data representing a sequence of picture elements at the centers of the 3×

    3 arrays,b. two parallel processing means comprising one parallel processor means for operating on the digital data, which represents the sequence of 3×

    3 arrays of picture elements, to identify and locate pictorial edges within the sequence of 3×

    3 arrays by means of edge sensitive masks and connectivity requirements, and another parallel processor means for operating on the digital data representing the sequence of center picture elements for introducing a time delay in the data equal to the time delay introduced by the first parallel processing means,c. enhancer means for receiving the outputs of the two parallel processor means and selectably increasing or decreasing the magnitude or brightness of the center picture elements as represented by the digital data output from the second of the two parallel processor means, in response to the output from the first of the two parallel processor means.

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