Method and apparatus for producing optical flow using multi-spectral images
First Claim
Patent Images
1. A method of determining optical flow comprising the steps of:
- obtaining a first image from a first spectral region of a field of view at a first time by a first image sensor;
obtaining a second image from a second spectral region of the field of view at said first time by a second image sensor; and
processing said first and second images to obtain the optical flow of the field of view by a processor.
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Abstract
A method and apparatus for producing optical flow obtains a first image of a first spectral region of a field of view, obtains a second image of a second spectral region of the field of view, and processes the images to obtain the optical flow of the field of view. The first and second spectral regions are non-identical, as, for example, the visible and infrared bandwidths.
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Citations
22 Claims
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1. A method of determining optical flow comprising the steps of:
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obtaining a first image from a first spectral region of a field of view at a first time by a first image sensor; obtaining a second image from a second spectral region of the field of view at said first time by a second image sensor; and processing said first and second images to obtain the optical flow of the field of view by a processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of determining optical flow comprising the steps of:
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obtaining a first image from a first spectral region of a field of view at a first time by a first image sensor; obtaining a second image from a second spectral region of the field of view at said first time by a second image sensor; and processing said first and second images to obtain first and second order partial derivatives of intensities of said first and second images for said first and second spectral regions by a processor to thereby obtain the optical flow of said first and second images. - View Dependent Claims (17, 18, 19)
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20. Apparatus for determining optical flow comprising:
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a first image sensor for obtaining a first image from a first spectral region of a field of view; a second image sensor for obtaining a second image from a second spectral region of the field of view, wherein said first image sensor and said second image sensor are operable to obtain said first and second images at the same instance of time; and a processor for processing said first and second images to obtain the optical flow of the field of view. - View Dependent Claims (21, 22)
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Specification