Foveated compressive sensing system
AssigneeHRL Laboratories, LLC
InventorsYuri Owechko, Kang-Yu Ni, Shankar R. Rao
Life of this patent
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Abstract
Described is a system for foveated compressive sensing. The system is configured to receive an input image f of a scene and initialize a measurement matrix. Global measurements are then performed, with a lower resolution image of the scene thereafter reconstructed. Task salient regions are extracted from the low resolution image. Thereafter, the system estimates a task-specific operator and detects regions-of-interest (ROI) based on the task salient regions. An ROI-adapted and foveated measurement matrix is then generated. Local measurements are then performed on task-relevant ROIs. A higher resolution image can then be reconstructed of the scene to allow for identification of objects in the ROI.
Claims12
A system for foveated compressive sensing, the system comprising:
- one or more processors and a memory, the memory being a non-transitory computer-readable medium having executable instructions encoded thereon, such that upon execution of the instructions, the one or more processors perform operations of:
- receiving an input image f of a scene;
- initializing a measurement matrix;
- performing global measurements of the input image f;
- reconstructing a lower resolution image of the scene;
- extracting task salient regions from the low resolution image;
- estimating a task-specific operator and detecting regions-of-interest (ROI) based on the task salient regions;
- generating an ROI-adapted and foveated measurement matrix;
- performing local measurements on task-relevant ROIs;
- and
- reconstructing a higher resolution image of the scene to allow for identification of objects in the ROI.
A computer program product for foveated compressive sensing, the computer program product comprising:
- a non-transitory computer-readable medium having executable instructions encoded thereon, such that upon execution of the instructions by one or more processors, the one or more processors perform operations of:
- receiving an input image f of a scene;
- initializing a measurement matrix;
- performing global measurements of the input image f,
- reconstructing a lower resolution image of the scene;
- extracting task salient regions from the low resolution image;
- estimating a task-specific operator and detecting regions-of-interest (ROI) based on the task salient regions;
- generating an ROI-adapted and foveated measurement matrix;
- performing local measurements on task-relevant ROIs;
- and
- reconstructing a higher resolution image of the scene to allow for identification of objects in the ROI.
A computer implemented method for foveated compressive sensing, the method comprising an act of:
- causing one or more processors to execute instructions encoded on a non-transitory computer-readable medium, such that upon execution, the one or more processors perform operations of:
- receiving an input image f of a scene;
- initializing a measurement matrix;
- performing global measurements of the input image f,
- reconstructing a lower resolution image of the scene;
- extracting task salient regions from the low resolution image;
- estimating a task-specific operator and detecting regions-of-interest (ROI) based on the task salient regions;
- generating an ROI-adapted and foveated measurement matrix;
- performing local measurements on task-relevant ROIs;
- and
- reconstructing a higher resolution image of the scene to allow for identification of objects in the ROI.
Dependencies are inferred from the claim text.