公开(公告)号：US12219271B2

公开(公告)日：2025-02-04

申请号：US18050270

申请日：2022-10-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dong-Jin Park ,  Woo Seok Choi ,  Jee Hong Lee

IPC: H04N25/704 ,  G06T3/4015 ,  H04N25/11 ,  H01L27/146

Abstract: An image sensor includes a pixel array including a plurality of normal pixels, a plurality of phase detection groups, and a color filter array. Each phase detection group includes a first phase detection pixel and a second phase detection pixel disposed adjacent to the first phase detection pixel. The color filter array includes a plurality of unit groups. Each unit group includes a plurality of color filters of a same color arranged in an M×N matrix on the pixel array, wherein M and N are natural numbers. A first color filter among the color filters of a first color is disposed on the first phase detection pixel of one of the unit groups and a second color filter among the color filters of a second color different from the first color is disposed on the second phase detection pixel of another one of the unit groups.

公开(公告)号：US12212860B2

公开(公告)日：2025-01-28

申请号：US18142598

申请日：2023-05-03

Applicant: Guangzhou Tyrafos Semiconductor Technologies Co., Ltd.

Inventor： Ping-Hung Yin ,  Jia-Shyang Wang ,  Dean Wang

IPC: H04N25/10 ,  G06T3/4015 ,  G06T5/50 ,  H01L27/02 ,  H01L27/146 ,  H04N23/13 ,  H04N23/45 ,  H04N23/52 ,  H04N23/56 ,  H04N23/73 ,  H04N23/74 ,  H04N23/741 ,  H04N23/80 ,  H04N23/951 ,  H04N25/11 ,  H04N25/13 ,  H04N25/47 ,  H04N25/50 ,  H04N25/533 ,  H04N25/535 ,  H04N25/58 ,  H04N25/59 ,  H04N25/75 ,  H04N25/77 ,  H04N25/771 ,  H04N25/78

Abstract: Provided is an image sensor circuit, including a pixel array and a plurality of different control circuits. The pixel array comprises a plurality of pixel circuit groups arranged in an array. Each pixel circuit group comprises a plurality of pixel circuits that generate corresponding sensitivity values over exposure duration. The pixel circuits include a first quantity of first pixel circuits, and a second quantity of second pixel circuits. The plurality of different control circuits are respectively coupled to different pixel circuits to control the exposure duration thereof with different transmission signals. The different control circuits are also set to control different pixel circuits to output photo-sensed values at different frame rates. The image sensor circuit periodically generates the pixel value of each pixel circuit group according to first and second exposure durations, first and second frame rates, and first and second light sensitivity values of each pixel circuit group.

公开(公告)号：US12205308B2

公开(公告)日：2025-01-21

申请号：US17371818

申请日：2021-07-09

Applicant: Ricoh Company, Ltd.

Inventor： Tomoyasu Aizaki

IPC: G06T7/33 ,  G06T3/4015 ,  G06T5/50

Abstract: An image processing apparatus includes circuitry that estimates a first geometric transformation parameter aligning first output image data with the original image data, the first output image data being acquired by reading a first output result, and a second geometric transformation parameter aligning second output image data with the original image data, the second output image data being acquired by reading a second output result. The circuitry associates, based on the first and second geometric transformation parameters, combinations of color components of the first and second output image data, corresponding to pixels of the original image data, to generate pixel value association data, and determines, based on the pixel value association data, a mapping for estimating color drift between the first output image data and the second output image data from the original image data. The original image data is subjected to color conversion based on the mapping.

公开(公告)号：US12192653B2

公开(公告)日：2025-01-07

申请号：US18343018

申请日：2023-06-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gang Hua ,  Rajasekhar Reddy Allu ,  Mihir Narendra Mody ,  Niraj Nandan ,  Mayank Mangla ,  Pandy Kalimuthu

IPC: H04N25/611 ,  G06T1/60 ,  G06T3/4015 ,  H04N25/13

Abstract: In an advanced driver-assistance system (ADAS), RAW sensor image processing for a machine vision (MV) application is important. Due to different color, e.g., red/green/blue (RGB), color components, being focused by the lens at different locations in image plane, the lateral chromatic aberration phenomenon may sometimes be observed, which causes false color around edges in the final image output, especially for high contrast edges, which can impede MV applications. Disclosed herein are low-latency, efficient, optimized designs for chromatic aberration correction (CAC) components. An in-pipeline CAC design may be used to perform on-the-fly CAC without any out-of-pipeline memory traffic; enable use of wide dynamic range (WDR) sensors; uses bicubic interpolation; support vertical and horizontal chromatic aberration color channel offsets, reduce CAC line memory requirements, and support flexible look-up table (LUT) down-sampling factors to improve the spatial precision of correction and accommodate popular image sensor resolutions.

公开(公告)号：US12184994B2

公开(公告)日：2024-12-31

申请号：US18144879

申请日：2023-05-09

Applicant: Guangzhou Tyrafos Semiconductor Technologies Co., Ltd.

Inventor： Ping-Hung Yin ,  Jia-Shyang Wang ,  Jia-Sian Lyu ,  Shih-Chan Tai

IPC: H04N25/10 ,  G06T3/4015 ,  G06T5/50 ,  H01L27/02 ,  H01L27/146 ,  H04N23/13 ,  H04N23/45 ,  H04N23/52 ,  H04N23/56 ,  H04N23/73 ,  H04N23/74 ,  H04N23/741 ,  H04N23/80 ,  H04N23/951 ,  H04N25/11 ,  H04N25/13 ,  H04N25/47 ,  H04N25/50 ,  H04N25/533 ,  H04N25/535 ,  H04N25/58 ,  H04N25/59 ,  H04N25/75 ,  H04N25/77 ,  H04N25/771 ,  H04N25/78

Abstract: The present invention relates to an image sensing device, including: an image sensing array, a conversion unit, and a processing circuit. The image sensing array is used to generate sensing signals of different periods. The conversion unit is used to convert the sensing signals from analog to digital. The processing circuit is used to generate a frame during an image capturing operation. The image sensing array includes a plurality of sensing sub-pixels, and the sensing sub-pixels have a sensing circuit and a storage circuit. The sensing circuit generates the sensing signals and sequentially stores the sensing signal in the storage circuit. The storage circuit sequentially outputs the sensing signals to the conversion unit.

公开(公告)号：US12133002B2

公开(公告)日：2024-10-29

申请号：US17743129

申请日：2022-05-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Liwei Yang

IPC: H04N23/84 ,  G06T3/4015 ,  G06T5/50 ,  G06T5/73 ,  G06T7/90 ,  G06V10/56 ,  G06V10/60 ,  H04N9/64 ,  H04N23/951

CPC classification number: H04N23/843 ,  G06T3/4015 ,  G06T5/50 ,  G06T5/73 ,  G06T7/90 ,  G06V10/56 ,  G06V10/60 ,  H04N9/646 ,  H04N23/951 ,  G06T2207/10024

Abstract: An image processing method includes receiving a raw image of an image sensor as a first image; performing remosaicing on the first image to generate a second image in a Bayer format, the performing the remosaicing including: converting the first image into a first color image, performing false color correction on the first color image, re-correcting an over-correction caused in performing the false color correction to generate a second color image, and converting the second color image into the second image in the Bayer format; and generating a full resolution image as an output image based on the second image.

公开(公告)号：US20240320788A1

公开(公告)日：2024-09-26

申请号：US18613105

申请日：2024-03-22

Applicant: SK hynix Inc.

Inventor： Dong Gyun KIM ,  Jeong Yong SONG ,  Jae Yoon YOO

IPC: G06T3/4015 ,  G06T7/90

CPC classification number: G06T3/4015 ,  G06T7/90 ,  G06T2207/10024

Abstract: An image signal processor and an image signal processing method are disclosed. The image signal processor includes a stripe pattern determiner configured to calculate a gradient index for each of a plurality of directions in a target kernel and determine whether the target kernel corresponds to a stripe pattern based on the gradient index for each of the plurality of directions, a pattern direction determiner configured to determine a pattern direction of the target kernel when the target kernel corresponds to the stripe pattern, and a demosaicing component configured to perform an interpolation operation based on the pattern direction of the target kernel.

公开(公告)号：US12096131B2

公开(公告)日：2024-09-17

申请号：US17512338

申请日：2021-10-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Quockhanh Dinh ,  Kyonghwan Jin ,  Youngo Park ,  Kwangpyo Choi

IPC: G06T7/90 ,  G06F18/214 ,  G06F18/40 ,  G06N20/00 ,  G06T3/4015 ,  G06T3/4038 ,  G06T5/20 ,  G06T5/70 ,  H04N23/81 ,  H04N23/90

CPC classification number: H04N23/81 ,  G06F18/2148 ,  G06F18/40 ,  G06N20/00 ,  G06T3/4015 ,  G06T3/4038 ,  G06T5/20 ,  G06T5/70 ,  G06T7/90 ,  H04N23/90 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/20182

Abstract: A method includes obtaining, by a second processor of the electronic device, from a first processor of the electronic device, a control signal for obtaining image data, loading any one learning model of at least one learning model into a memory, obtaining, by using the camera module, raw image data of the object, from light reflected from the object, the raw image data being configured to have a specified color array consisting of a plurality of colors with respect to a plurality of pixels, obtaining, by using the loaded any one learning model, a color data set with respect to the plurality of pixels from the obtained raw image data, the color data set including a plurality of pieces of color data classified according to the plurality of colors, and obtaining the noise-reduced image data of the object by using the obtained color data set.

公开(公告)号：US12069306B2

公开(公告)日：2024-08-20

申请号：US17974611

申请日：2022-10-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takafumi Murata ,  Shigeki Mochizuki

IPC: H04N19/63 ,  G06T3/4015 ,  H04N19/12 ,  H04N19/136 ,  H04N19/18 ,  H04N19/196

CPC classification number: H04N19/63 ,  G06T3/4015 ,  H04N19/12 ,  H04N19/136 ,  H04N19/18 ,  H04N19/196

Abstract: This invention provides an apparatus comprising an acquisition unit which acquires information representing optical compression ratios in a horizontal direction and in a vertical direction at a time of image capturing by an image capturing unit; a transform unit which wavelet transforms the image data to generate a plurality of sub-band data; a determination unit which determines quantization parameters for transform coefficients in a plurality of sub-bands obtained by the transform unit; and an encoding unit which quantizes the transform coefficients in the sub-band data obtained by the transform unit in accordance with the quantization parameters determined by the determination unit and to encode the quantized transform coefficients, wherein the determination unit performs weighting for each sub-band based on the information representing the compression ratios acquired by the acquisition unit to determine the quantization parameters.

公开(公告)号：US11949995B2

公开(公告)日：2024-04-02

申请号：US17895191

申请日：2022-08-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shashank Dabral ,  Mihir Narendra Mody ,  Denis Beaudoin ,  Niraj Nandan ,  Gang Hua

IPC: H04N23/84 ,  G06T3/40 ,  G06T3/4015 ,  G06T3/403 ,  G06T5/00 ,  H04N25/13 ,  H04N25/131

CPC classification number: H04N23/843 ,  G06T3/4015 ,  G06T3/403 ,  G06T5/00 ,  G06T2207/20012 ,  G06T2207/20192 ,  H04N25/131 ,  H04N25/134 ,  H04N25/135 ,  H04N2209/046

Abstract: A method of de-mosaicing pixel data from an image processor includes generating a pixel block that includes a plurality of image pixels. The method also includes determining a first image gradient between a first set of pixels of the pixel block and a second image gradient between a second set of pixels of the pixel block. The method also includes determining a first adaptive threshold value based on intensity of a third set of pixels of the pixel block. The pixels of the third set of pixels are adjacent to one another. The method also includes filtering the pixel block in a vertical, horizontal, or neutral direction based on the first and second image gradients and the first adaptive threshold value utilizing a plurality of FIR filters to generate a plurality of component images.