Image-capturing apparatus, image-capturing method, and image-capturing device

    公开(公告)号:US11283993B2

    公开(公告)日:2022-03-22

    申请号:US16954015

    申请日:2018-12-07

    Abstract: The present disclosure relates to an image-capturing apparatus, an image-capturing method, and an image-capturing device that allow reduction of an influence of diffraction due to opening sections of a mask in lensless image-capturing. Before a mask, a band-pass filter that is divided into a plurality of areas, each of which transmits incident light in a different wavelength band, is provided, and the mask that includes opening sections, and modulates the incident light, which has been transmitted through the band-pass filter, in the wavelength bands that are different for the individual areas is provided. The opening sections of the mask have such unit sizes that blurring resulting from diffraction which occurs to each wavelength of the incident light is minimized. The present disclosure can be applied to a lensless image-capturing apparatus.

    Image processing apparatus, imaging apparatus, and image processing method

    公开(公告)号:US11663708B2

    公开(公告)日:2023-05-30

    申请号:US16976742

    申请日:2018-12-06

    CPC classification number: G06T5/50 G02B5/3025 G06T5/001 H04N23/62 H04N23/69

    Abstract: A field of view of a captured image of a lensless camera can be controlled, and a configuration of generating a restored image including part of an imaging region is realized. Included is a signal processing unit that receives observed image signals as output of an image sensor of a lensless camera to generate a restored image of a restored image region including part of a captured image region of the lensless camera. The signal processing unit includes: a restored image region corresponding mask matrix calculation unit that calculates a restored image region corresponding mask matrix applied to generate the restored image; and an image estimation unit that subtracts observed image signals outside of the restored image region not included in the restored image region from the observation image signals to calculate observed image signals inside of the restored region and that executes arithmetic processing of the observed image signals inside of the restored region and a pseudo-inverse matrix or an inverse matrix of the restored image region corresponding mask matrix to generate the restored image.

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