Patent ID: 11902712
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An apparatus for acquiring image data, the apparatus comprising:
an image sensor including a sensor substrate and a color separation lens array, wherein the sensor substrate includes a plurality of photo-sensing cells, and the color separation lens array configured to separate an incident light into a plurality of lights having different wavelengths and form a phase distribution for condensing the plurality of lights having the different wavelengths on adjacent photo-sensing cells of the plurality of photo-sensing cells; and
a signal processor configured to estimate a blur kernel in a spatial domain based on a difference between a first image in which only a spectral resolution is deteriorated by a crosstalk point spread function (PSF) of the color separation lens array and a second image in which both the spectral resolution and a spatial resolution are deteriorated by the PSF, perform deconvolution on sensing signals of the plurality of photo-sensing cells based on the estimated blur kernel to obtain a sub-sampled image, perform demosaicing to restore a full resolution image having a full resolution from the sub-sampled image, and correct a color of the full resolution image using the crosstalk PSF of the color separation lens array.