Samsung Electronics Co., Ltd.

Wooseok Choi

Hee Joo Kang

Chanyoung Jang

Youngjun Song

Minkyu Sun

Sungjin Park

Kyungho Lee

Dongjin Park

Seungjoon Lee

Seongwook Song

Junghyung Pyo

Jungbin Yun

Dongki Min

Dahee Lee

Yongseong Kim

Youngmi Jo

Hyungoh Kim

Jinhyung Kim

An image sensor, including a pixel array; a readout circuit configured to generate image data including first image data including phase information regarding a first phase, second image data including phase information regarding a second phase, and full image data including color information; and a signal processing unit including: a front end processing module configured to generate third image data including additional phase information regarding the first phase using the second image data and the full image data, and to generate fourth image data including additional phase information regarding the second phase using the first image data and the full image data; and an auto-focusing processing module configured to calculate a phase difference between the first phase and the second phase using the first image data, the second image data, the third image data, and the fourth image data.

Image sensor, image processing system including the same, and operation method thereof

An image sensor is provided. The image sensor includes: a pixel array including first and second pixel groups, each of which includes unit pixels arranged in 4×4 array, each of the unit pixels including a photodiode provided, and the first and second pixel groups being alternately disposed in multiple directions; a logic circuit configured to acquire pixel signals from the unit pixels; first microlenses provided on corresponding unit pixels in the first pixel groups; and second microlenses provided on four corresponding unit pixels of the unit pixels included in the second pixel groups. Each of the first and second pixel groups includes a device isolation layer provided between the unit pixels, and a color filter provided on the first surface, and each of the second pixel groups includes an overflow region configured to move electrical charges between adjacent photodiodes.

Image sensor comprising a pixel array including first pixel groups and second pixel groups with corresponding microlenses of different sizes for autofocusing

An operating method of an imaging device comprising a plurality of shared pixels that share a floating diffusion node and each comprising sub-pixels covered by a micro-lens. The method involves generating a capture image from the plurality of shared pixels that receive light reflected from an object; compensating for the capture image using static phase information based on misalignment of the micro lens of each of the plurality of shared pixels; performing auto exposure control based on the compensation of the capture image; performing auto focus control based on the compensated capture image; and generating an output image by processing the compensated capture image.

Imaging device including shared pixels and operating method thereof

In a method of color decomposition, inter-color images indicating similarity between color sensitivities are generated based on color images. Conversion coefficients of the color images and the inter-color images with respect to a white image are determined. A pseudo-white image corresponding to the color images and the inter-color images is generated using the conversion coefficients the pseudo-white image similar to a real white image is generated using the inter-color images indicating similarity between color sensitivities. Deep learning of the artificial neural network is performed efficiently using the color images and the pseudo-white image and the demosaiced images of high quality are generated using the trained artificial neural network that is trained.

Method of color decomposition and method of demosaicing images based on deep learning using the same

An electronic device includes an image sensor configured to capture a target to generate first image data, and a processor configured to perform directional interpolation on a first area of the first image data to generate first partial image data, perform upscale on a second area of the first image data to generate second partial image data, and combine the first partial image data and the second partial image data to generate second image data.

Electronic device generating image data and converting the generated image data and operating method of the electronic device

A pixel array includes a plurality of pixel groups. Each of the plurality of pixel groups includes a plurality of subpixels arranged in an M&#xd7;N matrix, where M is a natural number equal to or greater than 2, and N is a natural number equal to or greater than 2, as well as a plurality of color pixels configured to sense pieces of light having different wavelength bands. Each of the plurality of color pixels includes a same number of phase detection pixels.

Pixel array including evenly arranged phase detection pixels and image sensor including the pixel array

A method of calibrating an image sensor includes obtaining a plurality of multi-light source images generated from a plurality of image sensor modules, wherein each of the plurality of image sensor modules generates at least three multi-light source images; obtaining, based on the plurality of multi-light source images, a plurality of crosstalk levels and a plurality of color-specific correction coefficients; generating modeling data based on a relationship between a crosstalk level for a first color and the plurality of color-specific correction coefficients; and obtaining, based on a single light source image captured by a first image sensor module and the modeling data, a color-specific correction coefficient for a target pixel of an image sensor, the image sensor being provided in the first image sensor module, and the color-specific correction coefficient being usable for correcting a crosstalk of the target pixel.

Method of calibrating image sensor and device for calibrating image sensor

The binning method of an image sensor includes reading out a plurality of pixel signals from at least two rows of each of a plurality of areas of a pixel array at a time, each of the plurality of areas including a plurality of pixels arranged in a 2n&#xd7;2n matrix, where n is an integer equal to or greater than 2; generating first image data by performing analog-to-digital conversion on the plurality of pixel signals; generating, based on the first image data, a first summation value of each of a plurality of binning areas based on two pixel values corresponding to a same color in each of the plurality of binning areas, the plurality of binning areas corresponding to the plurality of areas of the pixel array; and generating a second summation value of each of two binning areas based on two first summation values corresponding to a same color in the two binning areas, the two binning areas being adjacent to each other in a column direction among the plurality of binning areas.

Image sensor and binning method thereof

An image sensor including a pixel array including a plurality of sub-pixels arranged along a plurality of rows and a plurality of columns, and k number of sub-pixels representing one color pixel in conjunction with each other, where k is an integer equal to or greater than four and calibration circuitry may be provided. The calibration circuitry may be configured to receive digital image signal generated based on pixel signals output from the pixel array, calculate a color gain of the digital image signal based on a coefficient set calculated based on a reference image signal generated by a reference image sensor under a first light source having a first color temperature, store coefficient sets associated with a plurality of color temperatures including the first color temperature, and apply the color gain to the digital image signal to generate a calibrated image signal.

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Suwon-si, South Korea

Wooseok Choi