Method and apparatus for deblurring images
First Claim
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1. A method for reducing blur in an image of a scene acquired by a camera, comprising the steps of:
- temporally modulating light of a scene acquired and integrated by a camera image sensor according to a temporally coded pattern during an exposure time to generate an encoded input image, in which the camera image sensor is a solid state sensor and includes an array of pixels, and in which the modulating results in a well-posed invertible Fourier transform of a resultant point spread function; and
decoding the encoded input image according to an inverse of the coded pattern to produce a decoded output image having a reduced blur.
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Abstract
A method and system deblurs images acquired of a scene by a camera. A light field acquired of a scene is modulated temporally according to a sequence of ons and offs. The modulated light field is integrated by a sensor of a camera during an exposure time to generate an encoded input image. The encoded input image is decoded according to a pseudo-inverse of a smearing matrix to produce a decoded output image having a reduced blur.
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Citations
39 Claims
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1. A method for reducing blur in an image of a scene acquired by a camera, comprising the steps of:
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temporally modulating light of a scene acquired and integrated by a camera image sensor according to a temporally coded pattern during an exposure time to generate an encoded input image, in which the camera image sensor is a solid state sensor and includes an array of pixels, and in which the modulating results in a well-posed invertible Fourier transform of a resultant point spread function; and decoding the encoded input image according to an inverse of the coded pattern to produce a decoded output image having a reduced blur. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An apparatus for deblurring an image of a scene including a moving object, comprising:
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means for temporally modulating a light field of a scene including a moving object acquired by a sensor of a camera during an exposure time to generate an encoded input image, wherein the modulating is according to a binary on and off sequence of the light field, in which the sensor is a solid state sensor and includes an array of pixels, and in which the modulating results in a well-posed invertible Fourier transform of a resultant point spread function; and means for decoding the encoded input image to produce to a decoded output image having a reduced blur. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for reducing blur in an image of a scene, comprising the steps of:
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temporally modulating an energy field of a scene acquired and integrated by a sensor according to a temporally coded pattern during an exposure time to generate an encoded input image, in which the camera image sensor is a solid state sensor and includes an array of pixels, and in which the modulating results in a well-posed invertible Fourier transform of a resultant point spread function; and decoding the encoded input image according to an inverse of the coded pattern to produce a decoded output image having a reduced blur. - View Dependent Claims (35, 36, 37, 38, 39)
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Specification