Image processing apparatus
First Claim
Patent Images
1. An image processing apparatus, comprising:
- frame memories for storing one-frame image signals;
mask signal generating means for generating a mask pattern signal; and
gating means for gating the image signal from said frame memories in response to the mask pattern signal from said mask signal generating means;
wherein said mask signal generating means comprisesa first read only memory for storing a display start point of each scanning line of the image,a second read only memory for storing a display end point of each scanning line,a first counter for counting the scanning lines of the image,a second counter for counting pixels of each scanning line, first and second comparators for comparing an output from said second counter with data read out at addresses of said first and said second read only memories, respectively, which are accessed by said first counter, anda flip-flop which is set/reset in response to outputs from said first and said second comparators.
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Abstract
An electronic scope including a solid-state image pickup device arranged at a distal end of an endoscope and having an image pickup area whose aspect ratio is 1:1, an image processing circuit for masking the image signal output from the image pickup device, and a display device having a screen whose aspect ratio is 3:4. The image processing circuit has frame memories for storing one-frame image signals, a mask signal generator for generating a mask pattern signal, and a gate for permitting/inhibiting supply of the image signal from the frame memories to the display device in response to the mask pattern signal from the mask signal generator.
172 Citations
12 Claims
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1. An image processing apparatus, comprising:
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frame memories for storing one-frame image signals; mask signal generating means for generating a mask pattern signal; and gating means for gating the image signal from said frame memories in response to the mask pattern signal from said mask signal generating means; wherein said mask signal generating means comprises a first read only memory for storing a display start point of each scanning line of the image, a second read only memory for storing a display end point of each scanning line, a first counter for counting the scanning lines of the image, a second counter for counting pixels of each scanning line, first and second comparators for comparing an output from said second counter with data read out at addresses of said first and said second read only memories, respectively, which are accessed by said first counter, and a flip-flop which is set/reset in response to outputs from said first and said second comparators.
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2. An electronic scope image display apparatus, comprising:
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a solid-state image pickup device adapted to be arranged at a distal end of an endoscope; mask signal generating means for storing a mask pattern signal representing a mask pattern effective for blanking corner areas of a generally rectangular image; gating means for gating image data output from said image pickup device in response to the mask pattern signal from said mask signal generating means; and means for combining outputs from said gating means and character pattern data to produce a one-frame image and for displaying the one-frame image. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification