METHOD AND SYSTEM FOR IMPROVING CAMERA INFRARED SENSITIVITY USING DIGITAL ZOOM
First Claim
1. A system for providing recognition of a distant object, comprising:
- an illumination source for transmitting light radiation to the distant object;
an imaging device having a detector element including a plurality of pixel elements and a lens, the lens detecting the light radiation reflected from the distant object to generate an image of the object corresponding thereto; and
a digital signal processor element electrically connected with the imaging device, the digital signal processor element dynamically calculating a desired optical magnification of the lens as a function of a distance between the imaging device and the distant object, generating a voltage corresponding to the desired optical magnification and applying the voltage to the imaging device to adjust a magnification of the lens wherein the magnification adjustment is applied to each pixel element within a field of view of the detector element so that the image of the distant object is held in a fixed dimension for a predetermined period of time sufficient to capture the reflected light radiation.
2 Assignments
0 Petitions
Accused Products
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.
19 Citations
20 Claims
-
1. A system for providing recognition of a distant object, comprising:
-
an illumination source for transmitting light radiation to the distant object;
an imaging device having a detector element including a plurality of pixel elements and a lens, the lens detecting the light radiation reflected from the distant object to generate an image of the object corresponding thereto; and
a digital signal processor element electrically connected with the imaging device, the digital signal processor element dynamically calculating a desired optical magnification of the lens as a function of a distance between the imaging device and the distant object, generating a voltage corresponding to the desired optical magnification and applying the voltage to the imaging device to adjust a magnification of the lens wherein the magnification adjustment is applied to each pixel element within a field of view of the detector element so that the image of the distant object is held in a fixed dimension for a predetermined period of time sufficient to capture the reflected light radiation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20)
-
-
13. A method for providing recognition of an approaching distant object, comprising:
-
transmitting light radiation to the distant object;
detecting the light radiation reflected from the distant object at an imager device having a lens;
calculating a desired optical magnification of the lens as a function of a distance between the imager device and the distant object;
generating a voltage corresponding to the desired optical magnification of the lens; and
applying the voltage to the imager device to adjust a magnification of the lens to the desired optical magnification so that an image of the object is held in a fixed dimension for a predetermined period of time.
-
Specification