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公开(公告)号：US11570384B2
公开(公告)日：2023-01-31
申请号：US17011227
申请日：2020-09-03
发明人： Shahaf Duenyas , Yoel Yaffe , Guy Horowitz , Amit Eisenberg , Shy Hamami , Oded Monzon , Gal Bitan , Yoav Piepsh
摘要： A method performed with an image sensor having a pixel array. At least one frame of a scene may be obtained using the pixel array. At least one region of interest (ROI) is identified within the frame. Subsequent frames of the scene are obtained, which involves controlling the pixel array to perform high resolution imaging with respect to the at least one ROI and low resolution imaging using analog binning with respect to remaining regions of the frames.
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公开(公告)号：US10939049B2
公开(公告)日：2021-03-02
申请号：US16994742
申请日：2020-08-17
发明人： Nathan Henri Levy , Ariel Orfaig , Sebastien Derhy , Shachaf Amir , Yoel Yaffe
摘要： Methods, apparatuses, and systems are described for positional tracking (PT) in Augmented Reality (AR) applications. The method may include creating different images for AR preview and PT applications. In some cases, the PT information utilizes key point information. The AR preview and the PT images may be generated simultaneously using time division, space division, split timing, or any combination thereof. This may result in PT with significantly less motion blur. Accordingly, the PT will be more robust, and there will be more good frames available for key components of a PT algorithm (i.e., using visual PT to calibrate the biases of an inertial measurement unit). Thus, the methods and apparatus of the present disclosure may enable more effective management of the trade-off between motion-blur, noise and resolution for PT.
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公开(公告)号：US10909824B2
公开(公告)日：2021-02-02
申请号：US16103379
申请日：2018-08-14
发明人： Yoel Yaffe , Nathan Henri Levy
IPC分类号： H04N5/341 , H04N5/353 , G08B13/196 , H04N5/369 , H01L27/146 , G01B11/25
摘要： A pulsed image capturing system includes a pulse generation circuit, a dynamic vision sensor (DVS), and a DVS scanning and readout circuit. A global reset signal is transmitted to pixels of the DVS to set a reference illumination level for the pixels, and then a pulsed light pattern is generated. A global hold signal is transmitted to the pixels, after the pulsed light pattern is generated, to hold an illumination change event indicating a change with respect to the reference illumination level. A DVS scanning and readout operation is performed on event signals received from the pixels, after the global hold signal is transmitted to the pixels. A reflection of the pulsed light pattern is extracted from the DVS output after cleaning artifacts from the DVS output without additional image processing.
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公开(公告)号：US11595576B2
公开(公告)日：2023-02-28
申请号：US16996079
申请日：2020-08-18
发明人： Roee Elizov , Yoel Yaffe
摘要： A mobile device includes an application processor and an image sensor. The application processor includes an imaging subsystem configured to process high resolution image data through a first interface and a sensor hub configured to process sensor data through a second interface. The image sensor operates in one of first and second modes. The image sensor is configured to capture the high resolution image data in response to a request from the imaging subsystem and the imaging subsystem is configured to access the high resolution image data using the first interface for performing a first operation, during the first mode. The image sensor is configured to capture low resolution image data and the sensor hub is configured to access the low resolution image data using the second bus for performing a second operation, during the second mode.
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公开(公告)号：US11496700B1
公开(公告)日：2022-11-08
申请号：US17237631
申请日：2021-04-22
发明人： Roee Elizov , Yoel Yaffe , Amit Eisenberg , Shy Hamami
摘要： An image sensor may include control circuitry, a plurality of pixels, and an image processor. Each pixel includes a photodetector, at least first and second storage nodes, and transfer circuitry. The transfer circuitry is responsive to control signals generated by the control circuitry to transfer first charges generated by the photodetector during a first exposure time within a frame period to the first storage node. Second charges may be generated by the photodetector during a second, longer exposure time during the frame period, and transferred to the second storage node. The image processor may generate image frame data based on output voltage samples derived from the first and second charges of each of the plurality of pixels.
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公开(公告)号：US20150281683A1
公开(公告)日：2015-10-01
申请号：US14224198
申请日：2014-03-25
发明人： Yoel Yaffe , Claudio G. Jakobson , Shemi Prazot , Uzi Hizi
IPC分类号： H04N17/00 , H04N5/374 , H01L27/146
CPC分类号： H04N5/3651 , H01L27/14643 , H04N5/35518 , H04N5/374 , H04N17/002
摘要： Methods of calibrating a linear-logarithmic image sensor pixel include performing a reset of the pixel in advance of establishing a leakage current between a photodiode and a floating diffusion region of the pixel. A first voltage of the floating diffusion region is then read through a source follower and selection transistor, after the leakage is terminated. A step is then performed to transfer charge between the photodiode and the floating diffusion region of the pixel so that a voltage of a cathode of the photodiode is increased. Thereafter, a second voltage of the floating diffusion region is read. The first and second read voltages are then used to perform a calibration operation. These steps may be repeated to establish another leakage current of different duration/magnitude and yield third and fourth read voltages, which support further calibration.
摘要翻译： 校准线性对数图像传感器像素的方法包括在建立像素的光电二极管和浮动扩散区域之间的漏电流之前执行像素的复位。 然后，在泄漏终止之后，通过源极跟随器和选择晶体管读取浮动扩散区域的第一电压。 然后执行步骤以在像素的光电二极管和浮动扩散区域之间传送电荷，使得光电二极管的阴极的电压增加。 此后，读取浮动扩散区域的第二电压。 然后，第一和第二读取电压用于执行校准操作。 可以重复这些步骤以建立不同持续时间/幅度的另一泄漏电流并产生第三和第四读取电压，这支持进一步校准。
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公开(公告)号：US20220070391A1
公开(公告)日：2022-03-03
申请号：US17011227
申请日：2020-09-03
发明人： SHAHAF DUENYAS , Yoel Yaffe , Guy Horowitz , Amit Eisenberg , Shy Hamami , Oded Monzon , Gal Bitan , Yoav Piepsh
摘要： A method performed with an image sensor having a pixel array. At least one frame of a scene may be obtained using the pixel array. At least one region of interest (ROI) is identified within the frame. Subsequent frames of the scene are obtained, which involves controlling the pixel array to perform high resolution imaging with respect to the at least one ROI and low resolution imaging using analog binning with respect to remaining regions of the frames.
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公开(公告)号：US11962899B2
公开(公告)日：2024-04-16
申请号：US18112298
申请日：2023-02-21
发明人： Roee Elizov , Yoel Yaffe
IPC分类号： H04N23/667 , G06F3/01 , G06T7/00 , H04N23/65
CPC分类号： H04N23/667 , G06F3/017 , G06T7/0012 , H04N23/651 , G06T2207/30201
摘要： A mobile device includes an application processor and an image sensor. The application processor includes an imaging subsystem configured to process high resolution image data through a first interface and a sensor hub configured to process sensor data through a second interface. The image sensor operates in one of first and second modes. The image sensor is configured to capture the high resolution image data in response to a request from the imaging subsystem and the imaging subsystem is configured to access the high resolution image data using the first interface for performing a first operation, during the first mode. The image sensor is configured to capture low resolution image data and the sensor hub is configured to access the low resolution image data using the second bus for performing a second operation, during the second mode.
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公开(公告)号：US20220345648A1
公开(公告)日：2022-10-27
申请号：US17237631
申请日：2021-04-22
发明人： Roee Elizov , Yoel Yaffe , Amit Eisenberg , Shy Hamami
摘要： An image sensor may include control circuitry, a plurality of pixels, and an image processor. Each pixel includes a photodetector, at least first and second storage nodes, and transfer circuitry. The transfer circuitry is responsive to control signals generated by the control circuitry to transfer first charges generated by the photodetector during a first exposure time within a frame period to the first storage node. Second charges may be generated by the photodetector during a second, longer exposure time during the frame period, and transferred to the second storage node. The image processor may generate image frame data based on output voltage samples derived from the first and second charges of each of the plurality of pixels.
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公开(公告)号：US20200029006A1
公开(公告)日：2020-01-23
申请号：US16042479
申请日：2018-07-23
发明人： Nathan Henri Levy , Ariel Orfaig , Sebastien Derhy , Shachaf Amir , Yoel Yaffe
摘要： Methods, apparatuses, and systems are described for positional tracking (PT) in Augmented Reality (AR) applications. The method may include creating different images for AR preview and PT applications. In some cases, the PT information utilizes key point information. The AR preview and the PT images may be generated simultaneously using time division, space division, split timing, or any combination thereof. This may result in PT with significantly less motion blur. Accordingly, the PT will be more robust, and there will be more good frames available for key components of a PT algorithm (i.e., using visual PT to calibrate the biases of an inertial measurement unit). Thus, the methods and apparatus of the present disclosure may enable more effective management of the trade-off between motion-blur, noise and resolution for PT.
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