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公开(公告)号：US20220201235A1
公开(公告)日：2022-06-23
申请号：US17131342
申请日：2020-12-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle Wang , Lilong Shi , Kwang Oh Kim
IPC: H04N5/376 , H04N5/3745 , H04N5/378
Abstract: A pixel for an image sensor includes a photon sensor, a memory, and an accumulator. The photon sensor element portion outputs a signal to an accumulator, which then may add value stored in memory together and may transfer the result to the memory of another pixel. The pixel may be analog or digital and may be used in a pixel array for compressed sensing imaging. During imaging, a pseudo-random mask may also be used. The data collected during imaging may be used in compressed sensing and may be sent to an offline storage to be processed.
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公开(公告)号：US11321436B2
公开(公告)日：2022-05-03
申请号：US16520351
申请日：2019-07-23
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kwang Oh Kim , Yibing Michelle Wang , Kamil Bojanczyk
Abstract: A computing device includes a system that authenticates a user of the computing device. A first sensor obtains a first representation of a physical characteristic of the user that is compared to a registered representation of the physical characteristic of the user. A first level of access to the computing device is enabled based on the first representation of the physical characteristic matching the second representation of the physical characteristic. A second sensor obtains a first representation of a liveness characteristic of the user that indicates that the user is alive. The first representation of the liveness characteristic is compared to a registered representation of the liveness characteristic of the user. A second level of access to the computing device is enabled based on the first representation of the liveness characteristic of the user matching the second representation of the liveness characteristic of the user.
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公开(公告)号：US11269075B2
公开(公告)日：2022-03-08
申请号：US16940308
申请日：2020-07-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kwang Oh Kim , Yibing Michelle Wang , Radwanul Hasan Siddique , Lilong Shi , Chunji Wang
IPC: G01S17/08 , G01S17/894 , G06T7/55 , G06T7/521 , H04N13/156 , H04N13/254 , H04N5/369 , G06K9/00 , G06T7/20 , G05D1/00 , G05D1/02
Abstract: Provided is a 3D depth sensing system and method of providing an image based on a hybrid sensing array. The 3D sensing system including a light source configured to emit light, a hybrid sensing array comprising a 2D sensing region configured to detect ambient light reflected from an object and a 3D depth sensing region configured to detect the light emitted by the light source and reflected from the object, a metalens on the hybrid sensing array, the metalens being configured to direct the ambient light reflected from the object towards the 2D sensing region, and to direct the light emitted by the light source and reflected from the object towards the 3D depth sensing region, and a processing circuit configured to combine 2D image information provided by the 2D sensing region and 3D information provided by the 3D depth sensing region to generate a combined 3D image.
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公开(公告)号：US10883822B2
公开(公告)日：2021-01-05
申请号：US16852406
申请日：2020-04-17
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle Wang
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：US10883821B2
公开(公告)日：2021-01-05
申请号：US16838025
申请日：2020-04-01
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle Wang
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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Patent Agency Ranking
76.发明授权公开(公告)号：US10735714B2
公开(公告)日：2020-08-04
申请号：US16422944
申请日：2019-05-24
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle Wang , Lilong Shi , Ilia Ovsiannikov
IPC: H04N13/254 , H04N5/369 , H04N5/3745 , H04N5/378 , G01S17/10 , G01S7/4863 , G01S17/89
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：US10704896B2
公开(公告)日：2020-07-07
申请号：US16186477
申请日：2018-11-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle Wang
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：US10510160B2
公开(公告)日：2019-12-17
申请号：US15458016
申请日：2017-03-13
Applicant: Samsung Electronics Co., Ltd.
Inventor： Zhengping Ji , Lilong Shi , Yibing Michelle Wang , Hyun Surk Ryu , Ilia Ovsiannikov
Abstract: A Dynamic Vision Sensor (DVS) pose-estimation system includes a DVS, a transformation estimator, an inertial measurement unit (IMU) and a camera-pose estimator based on sensor fusion. The DVS detects DVS events and shapes frames based on a number of accumulated DVS events. The transformation estimator estimates a 3D transformation of the DVS camera based on an estimated depth and matches confidence-level values within a camera-projection model such that at least one of a plurality of DVS events detected during a first frame corresponds to a DVS event detected during a second subsequent frame. The IMU detects inertial movements of the DVS with respect to world coordinates between the first and second frames. The camera-pose estimator combines information from a change in a pose of the camera-projection model between the first frame and the second frame based on the estimated transformation and the detected inertial movements of the DVS.
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公开(公告)号：US10431613B2
公开(公告)日：2019-10-01
申请号：US15816122
申请日：2017-11-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Seunghoon Han , Yibing Michelle Wang
IPC: H01L27/146 , H01L31/103 , H01L31/105
Abstract: An image sensor includes a plurality of nanoantennas that satisfy sub-wavelength conditions. Each of the nanoantennas includes a diode and a transistor. Each diode is either a PN diode or a PIN diode.
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80.发明授权公开(公告)号：US10397554B2
公开(公告)日：2019-08-27
申请号：US16254582
申请日：2019-01-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle Wang
IPC: H04N13/254 , H04N5/3745 , H04N5/378 , H04N5/369 , G01S7/486 , G01S17/10 , G01S17/89
Abstract: An image sensor includes a plurality of a first type of diodes and a time-resolving sensor. The time-resolving sensor outputs first and second reset signals, and first and second measurement signals. The two reset signals respective represent a reset-charge level of a first and a second floating diffusion. The measurement signals are output in response the diodes detecting at least one incident photon. First and second time-of-flight (TOF) signals are formed by respective subtracting the first and second reset signals from the first and second measurement signals. A first ratio of a magnitude of the first signal to a sum of the magnitudes of the first and second signals is proportional to a TOF of the detected photon, and a second ratio of the magnitude of the second signal to the sum of the magnitudes of the first and second signals is proportional to the TOF of the detected photons.
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