Blood vessel detecting apparatus
AssigneeCanon Kabushiki Kaisha
InventorsSHIGEAKI ONO, SHINYA TANAKA
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Abstract
Disclosed is a blood vessel detecting apparatus which accurately detects a blood vessel using an image pickup element having a plurality of pixels to pick up an image of a blood vessel, a detector for detecting a pixel output estimated as a blood vessel on the basis of pixel the output from the image pickup elements, and a determination unit for, when the detector detects pixel outputs that are likely to be a plurality of blood vessels, determining a correct number of blood vessels using the pixel output or an area image pickup element.
Claims10
A blood vessel detecting apparatus comprising:
- image pickup means for picking up an image of a blood vessel;
- detection means for detecting a portion estimated as a blood vessel on the basis of an output from said image pickup means;
- and
- determination means for, when said detection means detects a plurality of portions that are likely to be blood vessels, determining a correct number of blood vessels on the basis of the output.
A blood vessel detecting apparatus comprising:
- an area sensor for picking up an image of a blood vessel;
- and
- a processing circuit for executing a signal processing to extract a feature point of the blood vessel on the basis of an image output from said area sensor concerning a direction perpendicular to a flowing direction of blood in the blood vessel, formed on said area sensor.
Dependencies are inferred from the claim text.