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US 12,626,408 B2Granted
Image processing apparatus, imaging system, and method for estimating error in reconstructed images
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsMotoki Yako, Takayuki Kiyohara
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Abstract
An image processing apparatus includes a storage device storing coding information indicating light transmission characteristics of an encoding mask including optical filters that are arranged in two dimensions and whose light transmission characteristics are different from one another and a signal processing circuit that generates reconstructed images on a basis of a compressed image generated through imaging that employs the encoding mask and the coding information, that estimates an error in the reconstructed images, and that outputs a signal indicating the error.
Claims19
An image processing apparatus comprising:
- a storage device storing coding information indicating light transmission characteristics of an encoding mask including optical filters that are arranged in two dimensions and whose light transmission characteristics are different from one another;
- and
- a signal processing circuit that generates, on a basis of a compressed image generated through imaging that employs the encoding mask and the coding information, reconstructed images including more signals than signals included in the compressed image,
- wherein the signal processing circuit estimates an error in the reconstructed images on a basis of the compressed image, the reconstructed images, and the coding information, and outputs a signal indicating the error.
1 more element
A method executed by a processor, the method comprising:
- obtaining coding information indicating light transmission characteristics of an encoding mask including optical filters that are arranged in two dimensions and whose light transmission characteristics are different from one another;
- obtaining a compressed image generated through imaging that employs the encoding mask;
- generating, on a basis of the coding information, reconstructed images including more signals than signals included in the compressed image;
- estimating an error in the reconstructed images on a basis of the compressed image, the reconstructed images, and the coding information;
- and
- outputting a signal indicating the error.
3 more elements
An image processing apparatus comprising:
- a storage device storing coding information corresponding to photoresponse characteristics of an imaging device including areas whose photoresponse characteristics are different from one another;
- and
- a signal processing circuit that generates, on a basis of a compressed image generated by the imaging device and the coding information, reconstructed images including more signals than signals included in the compressed image,
- wherein the signal processing circuit estimates an error in the reconstructed images on a basis of the compressed image, the reconstructed images, and the coding information, and outputs a signal indicating the error.
1 more element
A method executed by a processor, the method comprising:
- obtaining coding information indicating light transmission characteristics of an encoding mask including optical filters that are arranged in two dimensions and whose light transmission characteristics are different from one another;
- obtaining a compressed image generated through imaging that employs the encoding mask;
- generating, on a basis of the coding information, reconstructed images including more signals than signals included in the compressed image;
- and
- obtaining a reference image indicating a reference subject or reference information indicating a spectrum of the reference subject,
- wherein the compressed image is generated by capturing, using the encoding mask, an image of a scene including the reference subject and a target subject to be obtained through reconstruction, and
- the method further comprises:
- (i) estimating an error in the reconstructed images on a basis of comparison between the reference image and an area in the reconstructed image indicating the reference subject, or
- (ii) estimating the error on a basis of a difference between spectra of an area in the reconstructed images corresponding to the reference subject and the spectrum indicated by the reference information;
- and
- outputting a signal indicating the error.
8 more elements
A method executed by a processor, the method comprising:
- obtaining coding information indicating light transmission characteristics of an encoding mask including optical filters that are arranged in two dimensions and whose light transmission characteristics are different from one another;
- obtaining a compressed image generated through imaging that employs the encoding mask;
- generating, on a basis of the coding information, reconstructed images including more signals than signals included in the compressed image;
- estimating an error in the reconstructed images;
- storing the estimated error;
- predicting, on a basis of temporal changes in the error, a time when the error will exceed a threshold;
- and
- outputting a signal indicating the predicted time.
5 more elements
A method executed by a processor, the method comprising:
- obtaining coding information indicating light transmission characteristics of an encoding mask including optical filters that are arranged in two dimensions and whose light transmission characteristics are different from one another;
- obtaining a compressed image generated through imaging that employs the encoding mask;
- generating, on a basis of the coding information, reconstructed images including more signals than signals included in the compressed image;
- estimating an error in the reconstructed images;
- and
- outputting a signal indicating the error,
- wherein the optical filters have different spectral transmittances, and
- wherein the reconstructed images include image information regarding wavelength bands.
5 more elements
A method executed by a processor, the method comprising:
- obtaining coding information indicating light transmission characteristics of an encoding mask including optical filters that are arranged in two dimensions and whose light transmission characteristics are different from one another;
- obtaining a compressed image generated through imaging that employs the encoding mask;
- generating, on a basis of the coding information, reconstructed images including more signals than signals included in the compressed image;
- estimating an error in the reconstructed images;
- and
- displaying the error and spatial variation in pixel values in the reconstructed images on a display device in a distinguishable manner.
3 more elements
Dependencies are inferred from the claim text.