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71.
公开(公告)号:US10397553B2
公开(公告)日:2019-08-27
申请号:US16134954
申请日:2018-09-18
Applicant: Samsung Electronics Co., Ltd.
Inventor: Yibing Michelle Wang , Lilong Shi , Ilia Ovsiannikov
IPC: H04N13/254 , H04N5/3745 , H04N5/369 , G01S17/89 , H04N5/378 , G01S17/10 , G01S7/486
Abstract: A Time-of-Flight (TOF) technique is combined with analog amplitude modulation within each pixel in a pixel array using multiple Single Photon Avalanche Diodes (SPADs) in conjunction with a single Pinned Photo Diode (PPD) in each pixel. A SPAD may be shared among multiple neighboring pixels. The TOF information is added to the received light signal by the analog domain-based single-ended to differential converter inside the pixel itself. The spatial-temporal correlation among outputs of multiple, adjacent SPADs in a pixel is used to control the operation of the PPD to facilitate recording of TOF values and range of an object. Erroneous range measurements due to ambient light are prevented by stopping the charge transfer from the PPD—and, hence, recording a TOF value—only when two or more SPADs in the pixel are triggered within a pre-defined time interval. An autonomous navigation system with multi-SPAD pixels provides improved vision for drivers under difficult driving conditions.
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公开(公告)号:US20190187983A1
公开(公告)日:2019-06-20
申请号:US15916189
申请日:2018-03-08
Applicant: Samsung Electronics Co., Ltd.
Inventor: Ilia Ovsiannikov , Yibing Michelle Wang
CPC classification number: G06F9/3001 , G06F9/3004 , G06F9/30098 , G06N3/08
Abstract: A system for calculating. A scratch memory is connected to a plurality of configurable processing elements by a communication fabric including a plurality of configurable nodes. The scratch memory sends out a plurality of streams of data words. Each data word is either a configuration word used to set the configuration of a node or of a processing element, or a data word carrying an operand or a result of a calculation. Each processing element performs operations according to its current configuration and returns the results to the communication fabric, which conveys them back to the scratch memory.
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公开(公告)号:US10262399B2
公开(公告)日:2019-04-16
申请号:US15458020
申请日:2017-03-13
Applicant: Samsung Electronics Co., Ltd.
Inventor: Lilong Shi , Ilia Ovsiannikov
Abstract: A color-edge contrast preserver includes a demosaicing module, a color-correcting module, a converter module and a chromatic-denoising module. The demosaicing module may demosaic a red-white-blue (RWB) pixel image of the image. The color-correcting module may color correct the demosaiced RWB pixel image and may produce a red-green-blue (RGB) pixel image from the color-corrected demosaiced RWB pixel image. The converter module to convert the RGB pixel image to a hue-saturation-value (HSV) pixel image and to generate a similarity kernel ΔY. The chromatic-denoising module may denoise a red pixel image and a blue pixel image of the RWB pixel image using the similarity kernel ΔY.
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公开(公告)号:US10145678B2
公开(公告)日:2018-12-04
申请号:US14842822
申请日:2015-09-01
Applicant: Samsung Electronics Co., Ltd.
Inventor: Yibing Michelle Wang , Ilia Ovsiannikov , Dirk Smits
IPC: H04N5/00 , G01B11/22 , H04N5/225 , G01B11/25 , G03B15/02 , H04N5/232 , G06T7/521 , G03B17/54 , H04N13/271
Abstract: Using the same image sensor to capture both a two-dimensional (2D) image of a three-dimensional (3D) object and 3D depth measurements for the object. A laser point-scans the surface of the object with light spots, which are detected by a pixel array in the image sensor to generate the 3D depth profile of the object using triangulation. Each row of pixels in the pixel array forms an epipolar line of the corresponding laser scan line. Timestamping provides a correspondence between the pixel location of a captured light spot and the respective scan angle of the laser to remove any ambiguity in triangulation. An Analog-to-Digital Converter (ADC) in the image sensor generates a multi-bit output in the 2D mode and a binary output in the 3D mode to generate timestamps. Strong ambient light is rejected by switching the image sensor to a 3D logarithmic mode from a 3D linear mode.
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公开(公告)号:US09971937B1
公开(公告)日:2018-05-15
申请号:US14500674
申请日:2014-09-29
Applicant: Samsung Electronics Co., Ltd.
Inventor: Ilia Ovsiannikov , Yibing (Michelle) Wang , Yong-Hwa Park , Yong-Chul Cho , Heesun Yoon , ChangYoung Park , Dirk Smits
CPC classification number: G06K9/00604 , G06F21/32 , G06K9/00033 , G06K9/00617 , G06K9/4609 , G06T7/586 , G06T2207/20201 , G07C9/00158
Abstract: Exemplary embodiments for a biometric camera system for a mobile device, comprise: a near infrared (NIR) light source on the mobile device that flashes a user of the mobile device with near infrared light during image capture; a biometric camera located on the mobile device offset from the NIR light source, the biometric camera comprising: an extended depth of field (EDOF) imaging lens; a bandpass filter located adjacent to the EDOF imaging lens to reject ambient light during image capture; and an imaging sensor located adjacent the bandpass filter that converts an optical image of an object into an electronic signal for image processing; and a processor configured to receive video images of an iris of a user from the image sensor, and attempt to match the video images of the iris with previously registered images stored in an iris database, wherein if a match is found, the user is authenticated.
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公开(公告)号:US09934557B2
公开(公告)日:2018-04-03
申请号:US15148657
申请日:2016-05-06
Applicant: Samsung Electronics Co., Ltd.
Inventor: Zhengping Ji , Kyoobin Lee , Qiang Zhang , Yibing Michelle Wang , Hyun Surk Ryu , Ilia Ovsiannikov
CPC classification number: G06T5/002 , G06F3/00 , G06K9/00 , G06T5/50 , G06T7/80 , G06T2207/10016 , G06T2207/20076 , G06T2207/20182 , H04N5/217 , H04N5/357
Abstract: An apparatus and a method. The apparatus includes an image representation unit configured to receive a sequence of frames generated from events sensed by a dynamic vision sensor (DVS) and generate a confidence map from non-noise events; and an image denoising unit connected to the image representation unit and configured to denoise an image in a spatio-temporal domain. The method includes receiving, by an image representation unit, a sequence of frames generated from events sensed by a DVS, and generating a confidence map from non-noise events; and denoising, by an image denoising unit connected to the image representation unit, images formed from the frames in a spatio-temporal domain.
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公开(公告)号:US09716819B2
公开(公告)日:2017-07-25
申请号:US14599444
申请日:2015-01-16
Applicant: Samsung Electronics Co., Ltd.
Inventor: Ilia Ovsiannikov
CPC classification number: H04N5/2258 , H04N5/2329
Abstract: Ranging devices, systems, and methods are provided. In embodiments, a device includes a casing with four openings and an array with depth pixels. The depth pixels are arranged in four quadrants, so that pixels in each of the quadrants receive light through one of the four openings. The depth pixels may generate samples in response to the received light. For a certain frame, a controller reads out samples from each of the quadrants before completing reading out the samples of any one of the quadrants. In some embodiments, reading out is performed by using interleaved rolling shutter for the rows.
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78.
公开(公告)号:US09661308B1
公开(公告)日:2017-05-23
申请号:US14989716
申请日:2016-01-06
Applicant: Samsung Electronics Co., Ltd.
Inventor: Yibing Michelle Wang , Ilia Ovsiannikov , Peter Deane
CPC classification number: H04N13/261 , G01B11/25 , G06T7/521 , G06T7/62 , G06T2207/10016 , G06T2207/10152 , H04N5/3765 , H04N5/378 , H04N13/128 , H04N13/257
Abstract: Using the same image sensor to capture a two-dimensional (2D) image and three-dimensional (3D) depth measurements for a 3D object. A laser point-scans the surface of the object with light spots, which are detected by a pixel array in the image sensor to generate the 3D depth profile of the object using triangulation. Each row of pixels in the pixel array forms an epipolar line of the corresponding laser scan line. Timestamping provides a correspondence between the pixel location of a captured light spot and the respective scan angle of the laser to remove any ambiguity in triangulation. An Analog-to-Digital Converter (ADC) in the image sensor operates as a Time-to-Digital Converter (TDC) to generate timestamps. When the epipolar line is misaligned or curved, multiple TDC arrays acquire timestamps of multiple pixels (in multiple rows) substantially simultaneously. Multiple timestamp values are reconciled to obtain a single timestamp value for a light spot.
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79.
公开(公告)号:US09635277B2
公开(公告)日:2017-04-25
申请号:US14790359
申请日:2015-07-02
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Dong-Ki Min , Ilia Ovsiannikov , Lilong Shi , Tae-Chan Kim
CPC classification number: H04N5/2353 , H04N5/2354
Abstract: An image sensor operates in a base mode according to a first sampling rate and a first pixel exposure time and includes a light condition detector that extracts illuminance information from a pixel signal received from pixels in a pixel array, and generates a low-illuminance information signal upon detecting that a value of the illuminance information falls within a first range, a sampling controller that changes the first sampling rate to a second sampling rate in response to the low-illuminance information signal, and an exposure time controller that changes the first pixel exposure time to a second pixel exposure time in response to the low-illuminance information signal.
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公开(公告)号:US09411726B2
公开(公告)日:2016-08-09
申请号:US14712884
申请日:2015-05-14
Applicant: Samsung Electronics Co., Ltd.
Inventor: Ilia Ovsiannikov , Zhengping Ji , Yibing Michelle Wang , Hongyu Wang
CPC classification number: G06F12/0802 , G06T1/20 , G11C7/1039 , G11C7/1069
Abstract: An embodiment includes a system, comprising a first memory; a plurality of first circuits, wherein each first circuit is coupled to the memory; and includes a second circuit configured to generate a first output value in response to an input value received from the first memory; and an accumulator configured to receive the first output value and generate a second output value; and a controller coupled to the memory and the first circuits, and configured to determine the input values to be transmitted from the memory to the first circuits.
Abstract translation: 一个实施例包括一个系统,包括一个第一存储器; 多个第一电路,其中每个第一电路耦合到所述存储器; 并且包括被配置为响应于从第一存储器接收的输入值产生第一输出值的第二电路; 以及累加器,被配置为接收所述第一输出值并产生第二输出值; 以及控制器,其耦合到所述存储器和所述第一电路,并且被配置为确定要从所述存储器发送到所述第一电路的输入值。
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