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Medical image processor

  • US 4,538,227 A
  • Filed: 09/30/1982
  • Issued: 08/27/1985
  • Est. Priority Date: 10/05/1981
  • Status: Expired due to Term
First Claim
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1. An image processor comprising:

  • an image input circuit including an analog-to-digital converter for converting a provided gray-level image into a quantized image signal, and an image memory for successively storing an image on the basis of the quantized image signal from the analog-to-digital converter;

    an image processing circuit including,a ternary circuit for producing a ternary code signal based on the quantized signals outputted from the image memory in said image input circuit on the basis of a gray-level histogram,a boundary extraction means for extracting a boundary of a measured part within the image to be processed on the basis of the ternary code signal from said ternary circuit and for producing a corresponding boundary signal,a volume calculation means for integrating the boundary signal from said boundary extraction means and the value of gray-level within said boundary to produce a volume signal corresponding to the volume of the measured part, anda centroid operation means for obtaining the centroid of the measured part on the basis of the volume signal from said boundary extraction means and for producing a corresponding centroid signal; and

    an output circuit including a plane memory for storing at least selected of the signals produced by said image processing circuit and a display device for displaying images corresponding to at least selected of the signals stored in said plane memory.

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