Imaging device with blur reduction system
First Claim
1. An imaging device comprising:
- a lens configured to focus light from a selected scene within an optical footprint;
a substrate including;
a primary array configured to acquire a desired image of a portion of the selected scene during an integration period; and
at least one navigation array configured to acquire a series of images during the integration period including a first and a second image having common features from the selected scene, wherein the imaging array and the at least one navigation array are positioned within the optical footprint;
a correlator configured to receive the series of images from the at least one navigation array, to determine location differences of the common features of the first and second images relative to the at least one navigation array, and to provide a displacement signal indicative of imaging device translation in two planar dimensions during an interval between the first and second images based on the location differences; and
a compensator configured to opto-mechanically maintain a substantially fixed relationship between the selected scene and the primary and at least one navigation arrays based on the displacement signals.
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Abstract
An imaging device having a lens focusing light from a selected scene within an optical footprint, and a substrate including a primary array and at least one navigation array which are positioned within the optical footprint. The primary array acquires a desired image of a portion of the selected scene during an integration period and the at least one navigation array acquires a series of images during the integration period, including a first and a second image having common features from the selected scene. A correlator determines location differences of the common features of the first and second images relative to the at least one navigation array and provides a displacement signal indicative of imaging device translation in two planar dimensions during an interval between the first and second images based on the location differences.
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Citations
21 Claims
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1. An imaging device comprising:
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a lens configured to focus light from a selected scene within an optical footprint;
a substrate including;
a primary array configured to acquire a desired image of a portion of the selected scene during an integration period; and
at least one navigation array configured to acquire a series of images during the integration period including a first and a second image having common features from the selected scene, wherein the imaging array and the at least one navigation array are positioned within the optical footprint;
a correlator configured to receive the series of images from the at least one navigation array, to determine location differences of the common features of the first and second images relative to the at least one navigation array, and to provide a displacement signal indicative of imaging device translation in two planar dimensions during an interval between the first and second images based on the location differences; and
a compensator configured to opto-mechanically maintain a substantially fixed relationship between the selected scene and the primary and at least one navigation arrays based on the displacement signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of operating an imaging device receiving light from a selected scene within an optical footprint;
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providing a primary array and at least one navigation array on a same substrate, wherein the imaging array and the at least one navigation array are positioned within the optical footprint;
acquiring with the primary array a desired image of a portion of the selected scene during an integration period;
acquiring with the at least one navigation array a series of images during the integration period, the series including a first and a second image having common features from the selected scene;
determining location differences of the common features of the first and second images relative to the at least one navigation array;
providing a displacement signal indicative of imaging device translation in two planar dimensions during an interval between the first and second images based on the location differences; and
opto-mechanically maintaining a substantially fixed relationship between the selected scene and the primary and at least one navigation arrays based on the displacement signals. - View Dependent Claims (15, 16, 17, 18, 19)
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20. An imaging device comprising:
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means for receiving light from a selected scene;
means, on a substrate, for acquiring a desired image of a portion of the selected scene during an exposure period;
means, on the substrate, for acquiring a series of images during the exposure period, the series including a first and a second image having common features from the selected scene;
means for determining location differences of the common features of the first and second images; and
means for maintaining a substantially fixed relationship between the selected scene and the substrate based on the location differences. - View Dependent Claims (21)
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Specification