Method for obtaining a high-resolution digital image
First Claim
1. A method for obtaining a high-resolution digital image from a plurality of starting images formed by pixel matrices acquired at a lower resolution, the method comprising:
- combining the plurality of starting images to generate a provisional high-resolution image;
producing from the provisional high-resolution image a plurality of low-resolution images, each low-resolution image corresponding to a respective starting image; and
processing at least a portion of the provisional high-resolution image by modifying pixels thereof to reduce a difference between the plurality of starting images and the plurality of low-resolution images, the processing comprisingassociating with the pixels of the provisional high-resolution image a respective uncertainty measure representing an uncertainty of the pixels, andleaving unmodified at least a subset of the pixels of the provisional high-resolution image having associated therewith a respective uncertainty measure smaller than a threshold.
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Abstract
A method for obtaining a high-resolution digital image from a plurality of starting images formed by pixel matrices acquired at a lower resolution includes combining the plurality of starting images to generate a provisional high-resolution image, and producing from the provisional high-resolution image a plurality of low-resolution images. Each low-resolution image corresponds to a respective starting image. At least a portion of the provisional high-resolution image is processed by modifying pixels thereof to reduce a difference between the plurality of starting images and the plurality of low-resolution images. The processing includes associating with the pixels of the provisional high-resolution image a respective uncertainty measure representing an uncertainty of the pixels, and leaving unmodified at least a subset of the pixels of the provisional high-resolution image having associated therewith a respective uncertainty measure smaller than a threshold.
13 Citations
33 Claims
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1. A method for obtaining a high-resolution digital image from a plurality of starting images formed by pixel matrices acquired at a lower resolution, the method comprising:
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combining the plurality of starting images to generate a provisional high-resolution image; producing from the provisional high-resolution image a plurality of low-resolution images, each low-resolution image corresponding to a respective starting image; and processing at least a portion of the provisional high-resolution image by modifying pixels thereof to reduce a difference between the plurality of starting images and the plurality of low-resolution images, the processing comprising associating with the pixels of the provisional high-resolution image a respective uncertainty measure representing an uncertainty of the pixels, and leaving unmodified at least a subset of the pixels of the provisional high-resolution image having associated therewith a respective uncertainty measure smaller than a threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for obtaining a high-resolution digital image comprising:
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combining a plurality of starting images formed by pixel matrices acquired at a lower resolution to generate a provisional high-resolution image; producing from the provisional high-resolution image a plurality of low-resolution images, each low-resolution image corresponding to a respective starting image; and processing at least a portion of the provisional high-resolution image to reduce a difference between the plurality of starting images and the plurality of low-resolution images by performing the following associating with pixels of the provisional high-resolution image a respective uncertainty measure representing an uncertainty of the pixels, and leaving unmodified at least a subset of the pixels of the provisional high-resolution image having associated therewith a respective uncertainty measure smaller than a threshold. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. An acquisition device comprising
an acquisition unit for acquiring analog values representing a plurality of starting images; -
an analog-to-digital converter for converting the analog values into digital values; and an image generation unit receiving the digital values of the plurality of starting images and performing the following combining the digital values of the plurality of starting images to generate a provisional high-resolution image, producing from the provisional high-resolution. image a plurality of low-resolution images, each low-resolution image corresponding to a respective starting image, and processing at least a portion of the provisional high-resolution image by modifying pixels thereof to reduce a difference between the plurality of starting images and the plurality of low-resolution images by associating with the pixels of the provisional high-resolution image a respective uncertainty measure representing an uncertainty of the pixels, and leaving unmodified at least a subset of the pixels of the provisional high-resolution image having associated therewith a respective uncertainty measure smaller than a threshold. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification