Patent EP0111751A2 successfully refreshed from Google Patents.
EP0111751A2
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Image input device
Assignee: Toshiba Corp
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Filing: 1983-11-14
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Granted: —
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Expires: 2003-11-14
Abstract
Abstract Disclosed is an image input device arranged in such a way that a fluorescent X-ray image is photographed by a TV camera (16), and an image signal thereof is input into a CPU (26). The image input device is connected to an output of the TV camera (16), and comprises a difference circuit (28) for determining the difference between two picture signals obtained at a prescribed time interval, an object extracting circuit (36) for extracting an object image in accordance with the results of the difference, a position judging circuit (38) for judging whether or not the object image thus extracted is located within a picture screen, and a camera position controller (40) for controlling the position of the TV camera (16) in accordance with the results of judgement made by the position judging circuit.
Inventors
- 👤 Yuichiro Tani
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 02:11
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/02; G01N23/04; H; H04; H04N; H04N23/00; H04N23/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
112 words
An image input device comprising: photographing means (12, 14, 16) for photographing a picture including an object image which is to undergo diagnosis, which object varies in position and configuration, over time, characterized by further comprising; object extracting means (28, 36) for extracting the object image by determining the difference in brightness between two pictures obtained by said photographing means (12, 14, 16); position judging means (38) for judging whether or not the object image extracted is located within a picture screen; and control means (40) for controlling the photographing conditions of said photographing means (12, 14, 16), in accordance with the results of judgement made by said position judging means (38).
Claim 2
Dependent Claim
112 words
An image input device comprising: photographing means (12, 14, 16) for photographing a picture including an object image which is to undergo diagnosis, which object varies in position and configuration, over time, characterized by further comprising; object extracting means (28, 36) for extracting the object image by determining the difference in brightness between two pictures obtained by said photographing means (12, 14, 16); position judging means (38) for judging whether or not the object image extracted is located within a picture screen; and control means (40) for controlling the photographing conditions of said photographing means (12, 14, 16), in accordance with the results of judgement made by said position judging means (38).
Claim 3
Dependent Claim
61 words
An image input device according to claim 1, characterized in that said photographing means comprises an X-ray source (12), a fluorescent plate (14) for receiving the X-rays emitted from said X-ray source (12) and passing through a human body which is to undergo diagnosis, and a television camera (16) for photographing a fluorescent X-ray image produced by said fluorescent plate (14).
Claim 4
Dependent Claim
42 words
An image input device according to claim.1, characterized in that said object extracting means (28, 36) extracts a zone wherein the difference in brightness between the two pictures obtained at a prescribed time interval is other than zero as the object image.
Claim 5
Dependent Claim
46 words
An image input device according to claim 1, characterized in that said control means (40) moves said photographing means (16) in a direction parallel to the plane on which object image is photographed, where the object image is partly or wholly lost from the picture screen.
Claim 6
Dependent Claim
70 words
An image input device according to claim 1, characterized in that said position judging means (38) judges whether or not the object image falls within a specified range in the picture screen; and said control means (40) moves said photographing means (16) in a direction perpendicular to the plane on which the object image is photographed, where said object image has been judged as falling outside of said specified range.
Claim 7
Dependent Claim
31 words
An image input device according to claim 1, characterized in that the output signal of said photographing means (16) is processed on an on-line basis by an image processing means (26).
References Cited (Backward Citations)
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