Image Processing Apparatus and Camera System
First Claim
1. An image processing apparatus, comprising:
- parameter setting means which has a setting of a parameter concerned with at least one of pan, tilt, zoom and rotation for cutting out a region to be displayed in an image taken in by a lens;
geometrical position calculation means for calculating a geometrical position of each pixel in input side image data based on an output signal of imaging means, the each pixel corresponding to each pixel on an output screen, in order to perform predetermined transformation of a geometrical position of an image in the region based on the parameter;
an address table for storing table information which is combined information obtained by correlating an input side address, as an address of the each pixel of the input side image data based on calculation results of the geometrical position calculation means, to an output side address as a reference which is an address of the each pixel on the output screen; and
address matching means which checks the input side address of the each pixel of the input side image data, loaded in real time, against the input side address stored in the address table, and when both input side addresses are coincident, combines the input side image data at the input side address with the corresponding output side address to form output side image data, and also sends out the output side image data.
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Abstract
An image processing apparatus or camera system includes an image sensor 1, a geometrical position calculation device 6 for performing predetermined correction of a distortion, a first address table 10 for storing information correlating an input side address based on the calculation results of the geometrical position calculation device 6 to an output side address as a reference, a sort unit 11 for sorting the output side addresses according to the input side addresses, a second address table 12 for storing information correlating the output side address to the sorted input side address as a reference, and an address matching device 13 for matching the input side address of input side image data DI with the input side address stored in the second address table 12 and outputting output side image data DO.
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Citations
11 Claims
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1. An image processing apparatus, comprising:
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parameter setting means which has a setting of a parameter concerned with at least one of pan, tilt, zoom and rotation for cutting out a region to be displayed in an image taken in by a lens; geometrical position calculation means for calculating a geometrical position of each pixel in input side image data based on an output signal of imaging means, the each pixel corresponding to each pixel on an output screen, in order to perform predetermined transformation of a geometrical position of an image in the region based on the parameter; an address table for storing table information which is combined information obtained by correlating an input side address, as an address of the each pixel of the input side image data based on calculation results of the geometrical position calculation means, to an output side address as a reference which is an address of the each pixel on the output screen; and address matching means which checks the input side address of the each pixel of the input side image data, loaded in real time, against the input side address stored in the address table, and when both input side addresses are coincident, combines the input side image data at the input side address with the corresponding output side address to form output side image data, and also sends out the output side image data.
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2. A camera system, comprising:
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imaging means for forming a digital signal representing an image taken in by a lens; parameter setting means which has a setting of a parameter concerned with at least one of pan, tilt, zoom and rotation for cutting out a region to be displayed in the image; geometrical position calculation means for calculating a geometrical position of each pixel in input side image data, the each pixel corresponding to each pixel on an output screen, in order to perform predetermined transformation of a geometrical position of an image in the region based on the parameter; an address table for storing table information which is combined information obtained by correlating an input side address, as an address of the each pixel of the input side image data based on calculation results of the geometrical position calculation means, to an output side address as a reference which is an address of the each pixel on the output screen; and address matching means which checks the input side address of the each pixel of the input side image data, loaded in real time, against the input side address stored in the address table, and when both input side addresses are coincident, combines the input side image data at the input side address with the corresponding output side address to form output side image data, and also sends out the output side image data. - View Dependent Claims (3, 4, 6, 7, 8, 9, 10, 11)
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5. A camera system, comprising:
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imaging means for forming a digital signal representing an image taken in by a lens; parameter setting means which has a setting of a parameter concerned with at least one of pan, tilt, zoom and rotation for cutting out a region to be displayed in the image; geometrical position calculation means for calculating a geometrical position of each pixel in input side image data, the each pixel corresponding to each pixel on an output screen, in order to perform predetermined transformation of a geometrical position of an image in the region based on the parameter; an address table for storing table information which is combined information obtained by correlating an input side address, as an address of the each pixel of the input side image data based on calculation results of the geometrical position calculation means, to an output side address as a reference which is an address of the each pixel on the output screen; matching sort means for rearranging the output side addresses stored in the address table according to the input side addresses; a matching address table for storing table information which is combined information obtained by correlating the output side addresses to the input side addresses upon rearrangement by the matching sort means; and address matching means which checks the input side address of the each pixel of the input side image data, loaded in real time, against the input side address stored in the matching address table, and when both input side addresses are coincident, combines the input side image data at the input side address with the corresponding output side address to form output side image data, and also sends out the output side image data.
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Specification