Invention Grant
US06420704B1 Method and system for improving camera infrared sensitivity using digital zoom
失效
使用数码变焦提高相机红外线灵敏度的方法和系统
- Patent Title: Method and system for improving camera infrared sensitivity using digital zoom
- Patent Title (中): 使用数码变焦提高相机红外线灵敏度的方法和系统
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Application No.: US09732429Application Date: 2000-12-07
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Publication No.: US06420704B1Publication Date: 2002-07-16
- Inventor: John J. Berenz , George W. McIver , Barry Dunbridge
- Applicant: John J. Berenz , George W. McIver , Barry Dunbridge
- Main IPC: G01J302
- IPC: G01J302

Abstract:
A system for providing recognition of an approaching object located in a distant no-light environment includes an illumination source for transmitting light to the distant object and an imaging device for detecting the light radiation reflected from the distant object to generate an image of the distant object corresponding thereto. The system also includes an independent digital signal processor for calculating a desired optical magnification of a lens of the imaging device as a function of a distance between the imaging device and the distant object and generates a voltage corresponding thereto. The digital signal processor applies the voltage to the digital zoom circuitry of the imaging device to adjust the magnification of the lens so that the image of the distant object is held in a fixed dimension.
Public/Granted literature
- US20020070342A1 METHOD AND SYSTEM FOR IMPROVING CAMERA INFRARED SENSITIVITY USING DIGITAL ZOOM Public/Granted day:2002-06-13
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