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1.发明授权公开(公告)号：US10302420B2
公开(公告)日：2019-05-28
申请号：US15107375
申请日：2014-12-22
Applicant: Universitat Zurich , ETH Zurich
Inventor： Christian Brandli , Tobias Delbruck , Markus Andreas Hopflinger , Marco Hutter , Thomas Albert Mantel
Abstract: The present invention relates to a method for detecting and reconstructing a surface illuminated with spatially structured light such that the light illuminates an area of the surface from which the light is reflected back. The light includes a temporarily varying intensity in the form of successive light modulation patterns. The back-reflected light is detected by an optical sensor including a plurality of pixels. A pixel coordinate is associated to each pixel and each pixel generated a photocurrent proportional to the intensity of the light impinging on a respective pixel, computes a signal related to a photocurrent, and each pixel outputs an address-event merely when a respective signal due to the light impinging on the respective pixel increases by an amount larger than a first threshold or decreases by an amount larger than a second threshold since a last address-event from the respective pixel.
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2.发明申请PHOTOARRAY, PARTICULARLY FOR COMBINING SAMPLED BRIGHTNESS SENSING WITH ASYNCHRONOUS DETECTION OF TIME-DEPENDENT IMAGE DATA 有权特别是用于组合采样亮度感测与非相关检测时间相关图像数据的光电公开(公告)号：US20140326854A1
公开(公告)日：2014-11-06
申请号：US14366128
申请日：2012-12-19
Applicant: UNIVERSITAT ZURICH
Inventor： Tobias Delbruck , Raphael Berner
CPC classification number: G01J1/44 , G01J1/0238 , G01J2001/446 , G01J2001/4473 , H04N5/378
Abstract: The invention relates to a photoarray (1), comprising: a plurality of cells (10), wherein each of said cells (10) comprises a means (20)that is configured to generate a photocurrent (I) being proportional to the intensity (L) of the light impinging on the respective cell (10), and wherein each of said cells (10) comprises a change detection circuit (100) connected to the respective means (20) for generating the photocurrent (I), which change detection circuit (100) is configured to generate an output signal merely in case a change event occurs at which said intensity (L) changes by a threshold amount (T, T′) since the preceding change event from the respective cell (10). According to the invention said means (20) for generating said photocurrent (I) is additionally also used to estimate the magnitude of the said photocurrent (I) being a measure of the brightness of the light at the respective cell (10).
Abstract translation: 本发明涉及一种光电二极管阵列（1），包括：多个单元（10），其中每个所述单元（10）包括一个装置（20），其被配置为产生与强度成比例的光电流（I） L），并且其中每个所述单元（10）包括连接到各个装置（20）的变化检测电路（100），用于产生光电流（I），其改变检测 电路（100）被配置为仅在发生变化事件的情况下产生输出信号，在所述改变事件发生时，所述强度（L）自来自相应单元（10）的前一改变事件改变阈值量（T，T'）。 根据本发明，用于产生所述光电流（I）的所述装置（20）还用于估计所述光电流（I）的大小，作为在各个电池（10）处的光的亮度的量度。
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公开(公告)号：US10262207B2
公开(公告)日：2019-04-16
申请号：US15328084
申请日：2015-07-24
Applicant: UNIVERSITAT ZURICH
Inventor： Tobias Delbruck , Christian Brandli , Marc Osswald
Abstract: The present invention relates to a method for tracking a position of at least one keypoint in an image of an object moving relative to an optical sensor, wherein light reflected from the object (12) is detected so as to generate an image of the object, and wherein a position of at least one keypoint (Kj) in said image is detected and updated using temporal contrast events (Ev) of the optical sensor. The invention also relates to a corresponding computer program and device.
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公开(公告)号：US09631974B2
公开(公告)日：2017-04-25
申请号：US14366128
申请日：2012-12-19
Applicant: UNIVERSITAT ZURICH
Inventor： Tobias Delbruck , Raphael Berner
CPC classification number: G01J1/44 , G01J1/0238 , G01J2001/446 , G01J2001/4473 , H04N5/378
Abstract: The invention relates to a photoarray (1), comprising: a plurality of cells (10), wherein each of said cells (10) comprises a means (20)that is configured to generate a photocurrent (I) being proportional to the intensity (L) of the light impinging on the respective cell (10), and wherein each of said cells (10) comprises a change detection circuit (100) connected to the respective means (20) for generating the photocurrent (I), which change detection circuit (100) is configured to generate an output signal merely in case a change event occurs at which said intensity (L) changes by a threshold amount (T, T′) since the preceding change event from the respective cell (10). According to the invention said means (20) for generating said photocurrent (I) is additionally also used to estimate the magnitude of the said photocurrent (I) being a measure of the brightness of the light at the respective cell (10).
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