System and method for blind image deconvolution
AssigneeDRS Network & Imaging Systems, LLC
InventorJohn R. Bailey
Life of this patent
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Abstract
Embodiments are directed to systems and methods for blind image deconvolution. One method of blind image deconvolution comprises capturing a video using an imaging device and measuring a sharpness degradation metric for the video. The method further comprises determining parameters of a point spread function (PSF) corresponding to the sharpness degradation metric using a predetermined equation and performing deconvolution on at least one frame of the video using the PSF and the determined parameters.
Claims17
A method of image deconvolution, comprising:
- capturing a video comprising a plurality of frames using an imaging device;
- measuring a sharpness degradation metric for the video, wherein measuring a sharpness degradation metric for the video comprises:
- determining a mean image in the video using a subset of frames from the plurality of frames of the video;
- determining a first sharpness metric for the mean image;
- determining a second sharpness metric for a frame from the plurality of frames;
- and
- dividing the first sharpness metric by the second sharpness metric;
- determining one or more parameters of a point spread function (PSF) corresponding to the sharpness degradation metric;
- performing deconvolution on at least one frame of the video using the PSF with the one or more parameters.
A system, comprising:
- an image capture device configured to capture video comprising a plurality of frames;
- and
- an image processing device configured to receive the video, wherein the image processing device is further configured to:
- measure a sharpness degradation metric for the video by calculating a mean image in the video using a subset of frames from the plurality of frames of the video, determining a first sharpness metric for the mean image, determining a second sharpness metric for a frame from the plurality of frames, and dividing the first sharpness metric by the second sharpness metric;
- determine one or more parameters of a point spread function (PSF) corresponding to the sharpness degradation metric;
- perform deconvolution on at least one frame of the video using the PSF with the one or more parameters.
A non-transitory computer readable storage medium including instructions stored thereon which, when executed by a processor, cause the processor to perform a method, comprising:
- capturing a video comprising a plurality of frames using an imaging device;
- measuring a sharpness degradation metric for the video, wherein measuring a sharpness degradation metric for the video comprises:
- determining a mean image in the video using a subset of frames from the plurality of frames of the video;
- determining a first sharpness metric for the mean image;
- determining a second sharpness metric for a frame from the plurality of frames;
- and
- dividing the first sharpness metric by the second sharpness metric;
- determining one or more parameters of a point spread function (PSF) corresponding to the sharpness degradation metric;
- and
- performing deconvolution on at least one frame of the video using the PSF with the one or more parameters.
Dependencies are inferred from the claim text.