公开(公告)号：US20140346361A1

公开(公告)日：2014-11-27

申请号：US14149796

申请日：2014-01-07

申请人： Yibing M. WANG ,  Ilia OVSIANNIKOV ,  Tae-Chan KIM

发明人： Yibing M. WANG ,  Ilia OVSIANNIKOV ,  Tae-Chan KIM

IPC分类号： G01S17/08 ,  G06F3/042

CPC分类号： G06F3/042 ,  G01S7/497 ,  G01S17/026 ,  G01S17/36 ,  G01S17/50 ,  G06F1/1684 ,  G06F1/1686 ,  G06F3/0304

摘要： An imaging device has a pixel array that includes one or more depth pixels. The imaging device also includes a controller that can cause one or more of the depth pixels to image a depth of an object in a ranging mode. The controller can further cause the depth pixel(s) to image in one or more detection modes, with the appropriate control signals. The imaging device also includes a monitoring circuit that can detect a current drawn by the depth pixel(s) in the detection modes. A revert indication can be generated from the detected current. Depending on the control signals, the revert indication can serve as a proximity indication, or as a motion indication.

摘要翻译： 成像装置具有包括一个或多个深度像素的像素阵列。 成像装置还包括控制器，该控制器可使一个或多个深度像素在测距模式中对物体的深度进行成像。 控制器可以通过适当的控制信号进一步使深度像素在一个或多个检测模式下成像。 成像装置还包括监测电路，其可以检测在检测模式中由深度像素所绘制的电流。 可以从检测到的电流产生恢复指示。 取决于控制信号，恢复指示可以用作接近指示，或作为运动指示。

公开(公告)号：US20140285818A1

公开(公告)日：2014-09-25

申请号：US14214605

申请日：2014-03-14

申请人： Leap Motion, Inc.

发明人： David HOLZ

IPC分类号： G01S17/42

CPC分类号： G01S17/36 ,  G01S7/4815 ,  G01S7/483 ,  G01S17/003 ,  G01S17/026 ,  G01S17/42 ,  G01S17/48 ,  G01S17/89

摘要： The technology disclosed relates to determining positional information of an object in a field of view. In particular, it relates to calculating a distance of the object from a reference such as a sensor including scanning the field of view by selectively illuminating directionally oriented light sources and measuring one or more differences in property of returning light emitted from the light sources and reflected from the object. The property can be intensity or phase difference of the light. It also relates to finding an object in a region of space. In particular, it relates to scanning the region of space with directionally controllable illumination, determining a difference in a property of the illumination received for two or more points in the scanning, and determining positional information of the object based in part upon the points in the scanning corresponding to the difference in the property.

摘要翻译： 所公开的技术涉及在视场中确定对象的位置信息。 特别地，涉及通过选择性地照射定向光源来测量物体与诸如传感器的参考物的距离，包括扫描视场，并且测量从光源发射的返回光的反射性质的一个或多个差异 从对象。 该属性可以是光的强度或相位差。 它还涉及在空间区域中找到一个对象。 特别地，涉及利用方向可控照明来扫描空间区域，确定扫描中两个或多个点所接收的照明的特性的差异，并且部分地基于所述对象中的点来确定对象的位置信息 扫描对应于属性的差异。

公开(公告)号：US20140231631A1

公开(公告)日：2014-08-21

申请号：US14181857

申请日：2014-02-17

申请人： STMicroelectronics (Research & Development) Limited

发明人： John Kevin Moore ,  Bruce Rae

IPC分类号： G01S17/10 ,  G01B11/14

CPC分类号： G01S17/10 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/026 ,  G01S17/36

摘要： An array of photon sensitive devices is configured to provide outputs. Pulse shaping circuits operate to shape a respective output of the array in a normal mode of operation and shape a calibration signal in a calibration mode of operation.

摘要翻译： 一组光子敏感设备被配置成提供输出。 脉冲整形电路用于在正常操作模式下对阵列的相应输出进行整形，并在校准操作模式下形成校准信号。

公开(公告)号：US20140152813A1

公开(公告)日：2014-06-05

申请号：US14127665

申请日：2012-08-03

申请人： IFM ELECTRONIC GmbH

发明人： Ralph Wilks ,  Bernd Damhofer

IPC分类号： G01S17/36 ,  G01S17/89

CPC分类号： G01S17/36 ,  G01S7/491 ,  G01S7/497 ,  G01S17/89 ,  G01S2007/4975

摘要： A time-of-flight camera, having a time-of-flight sensor, which has at least one receiving pixel and is configured as a photomixing detector, having an illumination means, and having a modulator, which is connected to the time-of-flight sensor and to the illumination means, wherein a control sensor is arranged in the region of the illumination means such that at least some of the radiation emitted by the illumination means can be received by the control sensor is provided.

摘要翻译： 具有飞行时间传感器的飞行时间相机具有至少一个接收像素并被配置为光混合检测器，具有照明装置，并且具有调制器，该调制器连接到时间 提供了一种传感器和照明装置，其中控制传感器设置在照明装置的区域中，使得由照明装置发射的辐射中的至少一些可被控制传感器接收。

公开(公告)号：US08643827B2

公开(公告)日：2014-02-04

申请号：US12162120

申请日：2007-01-19

申请人： Gerd Reime ,  Peter Langer ,  Bernd Mayer

发明人： Gerd Reime ,  Peter Langer ,  Bernd Mayer

IPC分类号： G01C3/08

CPC分类号： G01S17/36 ,  G01S7/4816 ,  G01S17/89

摘要： A method for measuring the transmit time of light, in particular for cameras. A first light signal is clocked by a first clock controller, input into a light system and reflected back to a receiver photodiode, which determines a reception signal as a result of the first light signal. A further light signal clocked by a further clock controller inputs the photodiode at an angle to the first light signal and is mixed at the photodiode with the first light signal to form a common reception signal, which is filtered with a filter whose frequency response corresponds to the frequency of the clock difference to form a filter signal, the first and further clock signals are also mixed in a mixer to form a mixed signal and the phase shift between the mixed signal and the filter signal is used to determine the transit time of light.

摘要翻译： 一种用于测量光的发射时间的方法，特别是用于照相机。 第一光信号由第一时钟控制器计时，输入到光系统中并反射回接收光电二极管，接收器光电二极管确定作为第一光信号的结果的接收信号。 由另一个时钟控制器控制的另一个光信号以与第一光信号成一定角度输入光电二极管，并在光电二极管处与第一光信号混合，以形成公共接收信号，该公共接收信号用频率响应对应于 时钟差的频率形成滤波器信号，第一和另外的时钟信号也在混频器中混合形成混合信号，混合信号和滤波器信号之间的相移用于确定光的通过时间 。

公开(公告)号：US08629976B2

公开(公告)日：2014-01-14

申请号：US13021484

申请日：2011-02-04

申请人： Hua Hui ,  Cyrus Bamji

发明人： Hua Hui ,  Cyrus Bamji

IPC分类号： G01C3/08

CPC分类号： G01C3/08 ,  G01S7/4915 ,  G01S17/36 ,  G01S17/89

摘要： A TOF system acquires depth data using n≧3 modulation frequencies f1, f2, . . . , fm separately, associated with separate aliasing interval ranges Z1, Z2, . . . , Zm. Next, n intermediate frequencies fDE1, fDE2, . . . , fDEn are generated sorted by order of fDE1 Zk for k=1 . . . n as if said TOF system operated at a very low modulation frequency fD, while simultaneously providing depth resolution certainty as if said TOF system operated at a high modulation frequency fE. Preferably high modulation frequency fE is a function of all modulation frequencies f1, f2, . . . , fm, which function may be an arithmetic mean or a weighted average of f1, f2, . . . , fm.

摘要翻译： TOF系统使用n> = 3调制频率f1，f2，...获取深度数据。 。 。 ，fm分别与单独的混叠间隔范围Z1，Z2，相关联。 。 。 ，Zm。 接下来，n个中间频率fDE1，fDE2，... 。 。 ，fDEn按fDE1 Zk。 。 。 n好像所述TOF系统以非常低的调制频率fD操作，同时提供深度分辨率确定性，好像所述TOF系统以高调制频率fE操作。 优选地，高调制频率fE是所有调制频率f1，f2的函数。 。 。 ，fm，该函数可以是f1，f2的算术平均值或加权平均值。 。 。 ，fm。

公开(公告)号：US20130335725A1

公开(公告)日：2013-12-19

申请号：US13973692

申请日：2013-08-22

申请人： Cedes Safety & Automation AG ,  Rockwell Automation Technologies, Inc.

发明人： Martin Hardegger ,  Reto Berner ,  Richard Galera ,  Suresh Nair ,  Carl Meinherz ,  Craig Martin Brockman ,  Elik I. Fooks ,  Manfred Norbert Stein ,  Robert M. Black

IPC分类号： G01S17/36

CPC分类号： G01S17/36 ,  G01S17/023 ,  G01S17/89 ,  H04N5/3696 ,  H04N9/045 ,  H04N17/002 ,  H04N2209/047

摘要： A system for calibrating a color sensing pixel based upon the distance between the color sensing pixel and an object. The distance is determined by measuring the phase shift of electromagnetic radiation as reflected from the surface of the object compared with the wave profile of the electromagnetic radiation incident on the object surface. The color sensing pixel is associated with a Time-of-Flight (ToF) pixel which is employed to determine the distance of the color sensing pixel. The electromagnetic radiation can be from any part of the electromagnetic spectrum, in particular the infrared and visible light portions of the electromagnetic spectrum. The color sensing pixel and the ToF pixel can reside on the same semiconductor or on disparate semiconductors.

摘要翻译： 一种用于基于颜色感测像素和对象之间的距离来校准颜色感测像素的系统。 通过测量与物体表面上入射的电磁辐射的波形相比，从物体表面反射的电磁辐射的相移测量距离。 颜色感测像素与用于确定颜色感测像素的距​​离的飞行时间（ToF）像素相关联。 电磁辐射可以来自电磁光谱的任何部分，特别是电磁光谱的红外和可见光部分。 颜色感测像素和ToF像素可以驻留在相同的半导体上或在不同的半导体上。

公开(公告)号：US20130176445A1

公开(公告)日：2013-07-11

申请号：US13541547

申请日：2012-07-03

申请人： Lee V. Streeter ,  Adrian A. Dorrington ,  Andrew D. Payne

发明人： Lee V. Streeter ,  Adrian A. Dorrington ,  Andrew D. Payne

IPC分类号： H04N5/232

CPC分类号： H04N5/23254 ,  G01S17/36 ,  G01S17/89

摘要： Methods and devices for correcting for motion blur in range cameras without increasing acquisition speed or reducing the overall quality of the distance determinations, by identifying moving objects in a scene and determining the speed and direction of the objects.

摘要翻译： 用于通过识别场景中的移动物体并确定物体的速度和方向来校正范围相机中的运动模糊而不增加采集速度或降低距离确定的总体质量的方法和装置。

公开(公告)号：US08482722B2

公开(公告)日：2013-07-09

申请号：US12839840

申请日：2010-07-20

申请人： Dong Ki Min ,  Young Gu Jin

发明人： Dong Ki Min ,  Young Gu Jin

IPC分类号： G01C3/08

CPC分类号： G01S7/491 ,  G01S17/36 ,  G01S17/89

摘要： A distance measurement method includes measuring a plurality of integrated signals at a plurality of modulation phase offsets; estimating at least one integrated signal for at least one of the plurality of modulation phase offsets, respectively, to adjust its reception time relative to an integrated signal for another of the plurality of modulation phase offsets; and determining a distance between the target and receiver in accordance with the estimated at least one signal.

摘要翻译： 距离测量方法包括以多个调制相位偏移测量多个积分信号; 估计所述多个调制相位偏移中的至少一个的至少一个积分信号，以相对于所述多个调制相位偏移中的另一个的积分信号来调整其接收时间; 以及根据估计的至少一个信号确定目标和接收机之间的距离。

公开(公告)号：US20130148102A1

公开(公告)日：2013-06-13

申请号：US13712087

申请日：2012-12-12

申请人： MESA Imaging AG

发明人： Thierry Oggier

IPC分类号： G01C3/08

CPC分类号： G01C3/08 ,  G01S7/4911 ,  G01S7/4915 ,  G01S17/36 ,  G01S17/89

摘要： Due to their parallel illumination and acquisition for all the pixels, today's state-of-the-art time-of-flight (TOF) range cameras suffer from erroneous measurements caused by multiple reflections in the scene. The invention proposes to compensate for the multi-path fusing the results obtained by applying two spatially different illumination schemes, typically one to achieve highest possible lateral resolution and for the second one structuring the emitted light and by doing so lowering the lateral resolution but limiting the impact of multiple reflections.

摘要翻译： 由于它们对所有像素的平行照明和采集，当今最先进的飞行时间（TOF）系列相机遭受由场景中的多次反射引起的错误测量。 本发明提出了通过应用两个空间不同的照明方案（通常一个实现最高可能的横向分辨率）和第二个结构化发射的光并且通过这样做降低横向分辨率而限制 影响多重反射。