Reducing roll-induced smear in imagery
AssigneeLockheed Martin Corporation
InventorsMark T. Myers, Trisha Fish
Life of this patent
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Abstract
Mechanisms for reducing roll-induced smear are provided. For each frame period of a plurality of frame periods of a detector array, a pixel mask is rotated with respect to the detector array based on a rotational movement of the scene with respect to the detector array to identify a subset of pixels of the detector array. The pixels in the subset of pixels integrate energy from a scene during that respective frame period. The pixels in the subset of pixels are readout during the respective frame period to generate a pixel data set. The subset of pixels is less than all the pixels in the detector array. An image portion of the scene is generated based on the pixel data set. Successive image portions can be combined to form an image of the scene.
Claims11
A method, comprising:
- for each frame period of a plurality of frame periods of a detector array comprising a plurality of pixels:
- rotating a pixel mask with respect to the detector array based on a rotational movement of a scene with respect to the detector array to identify a subset of pixels of the detector array;
- integrating, by the pixels in the subset of pixels, energy from the scene;
- and
- reading out the pixels in the subset of pixels to generate a pixel data set;
- generating an image portion of the scene based on the pixel data set;
- and
- combining successive image portions to form an image of the scene.
A system comprising:
- a detector array comprising a plurality of pixels;
- a controller configured to:
- for each frame period of a plurality of frame periods:
- rotate a pixel mask with respect to the detector array based on a rotational movement of a scene with respect to the detector array to identify a subset of pixels of the detector array;
- and
- read out the pixels in the subset of pixels to generate a pixel data set after an integration of energy from the scene by the pixels in the subset of pixels;
- generate an image portion of the scene based on the pixel data set;
- and
- combine successive image portions to form an image of the scene.
Dependencies are inferred from the claim text.