Surveillance system and methods regarding same
First Claim
1. A method for use in monitoring a search area, the method comprising:
- providing a plurality of frames of image pixel data, wherein the plurality of frames of image pixel data include at least one frame of image pixel data representative of a corresponding field of view for each of a plurality of imaging devices, wherein each field of view of each imaging device comprises a field of view portion which overlaps with at least one other field of view of another imaging device; and
combining the plurality of frames of image pixel data into a single image representative of at least a portion of the search area by computing at least one homography transformation matrix indicative of a coordinate relationship between image pixel data for fields of view of at least one pair of the imaging devices that comprise field of view portions which overlap with each other.
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Abstract
A system and method for use in monitoring a search area includes positioning a plurality of imaging devices at one or more installation sites such that corresponding fields of view for the plurality of imaging devices cover a defined search area. For example, each field of view of each imaging device may include a field of view portion which overlaps with at least one other field of view of another imaging device, e.g., the field of view portion which overlaps may be greater than about 25 percent and less than about 85 percent of the field of view of the imaging device. Further, for example, images may be fused using one or more homography transformation matrices.
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Citations
43 Claims
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1. A method for use in monitoring a search area, the method comprising:
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providing a plurality of frames of image pixel data, wherein the plurality of frames of image pixel data include at least one frame of image pixel data representative of a corresponding field of view for each of a plurality of imaging devices, wherein each field of view of each imaging device comprises a field of view portion which overlaps with at least one other field of view of another imaging device; and
combining the plurality of frames of image pixel data into a single image representative of at least a portion of the search area by computing at least one homography transformation matrix indicative of a coordinate relationship between image pixel data for fields of view of at least one pair of the imaging devices that comprise field of view portions which overlap with each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for use in monitoring a search area, the system comprising:
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a plurality of imaging devices operable to provide a plurality of frames of image pixel data, wherein the plurality of frames include at least one frame of image pixel data representative of a corresponding field of view for each of the plurality of imaging devices, wherein each field of view of each imaging device comprises a field of view portion which overlaps with at least one other field of view of another imaging device; and
a computing apparatus operable to combine the plurality of frames of image pixel data into a single image representative of at least a portion of the search area by computing at least one homography transformation matrix indicative of a coordinate relationship between image pixel data for fields of view of at least one pair of the imaging devices that comprise field of view portions which overlap with each other. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for use in monitoring a search area, wherein the method comprises:
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defining a search area having an outer perimeter edge;
positioning a first imaging device at a first installation site such that a field of view for the first imaging device covers at least a region of the defined search area along at least a portion of the outer perimeter edge thereof;
positioning one or more additional imaging devices at the first installation site, if necessary, to cover with fields of view thereof one or more additional regions of the defined search area not covered by the field of view of the first imaging device; and
positioning one or more additional imaging devices at one or more additional installation sites, if necessary, to cover with fields of view thereof one or more additional regions of the defined search area not covered by fields of view of the imaging devices positioned at the first installation site, wherein each field of view of each imaging device comprises a field of view portion which overlaps with at least one other field of view of another imaging device, wherein the field of view portion which overlaps is greater than about 25 percent of the field of view of the imaging device. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. A system for use in monitoring a search area, the system comprising:
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a first imaging device positioned at a first installation site such that a field of view for the first imaging device covers at least a region of a defined search area along an outer perimeter edge thereof;
one or more additional imaging devices positioned at the first installation site, if necessary, to cover with fields of view thereof one or more regions of the defined search area not covered by the field of view of the first imaging device; and
one or more additional imaging devices positioned at one or more additional installation sites, if necessary, to cover with fields of view thereof one or more additional regions of the defined search area not covered by the fields of view of the imaging devices positioned at the first installation site, wherein each field of view of each imaging device comprises a field of view portion which overlaps with at least one other field of view of another imaging device, wherein the field of view portion which overlaps is greater than about 25 percent of the field of view of the imaging device. - View Dependent Claims (32, 33, 34, 35, 36, 37)
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38. A method for use in monitoring a search area, wherein the method comprises:
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defining a search area; and
positioning a plurality of imaging devices at one or more installation sites such that corresponding fields of view for the plurality of imaging devices cover the entire search area, wherein each field of view of each imaging device comprises a field of view portion which overlaps with at least one other field of view of another imaging device, wherein the field of view portion which overlaps is greater than about 25 percent of the field of view of the imaging device. - View Dependent Claims (39, 40, 41, 42, 43)
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Specification