公开(公告)号：US20180259647A1

公开(公告)日：2018-09-13

申请号：US15975192

申请日：2018-05-09

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Haruka TAKANO ,  Tomohiko KANEMITSU ,  Tsuyoshi HASUKA ,  Mitsuhiko OTANI

IPC分类号： G01S17/89 ,  G01C3/08 ,  G01S17/10 ,  G01S7/487 ,  G01S7/48 ,  G01S7/486

CPC分类号： G01S17/89 ,  G01C3/08 ,  G01S7/4808 ,  G01S7/4865 ,  G01S7/4868 ,  G01S7/487 ,  G01S17/10

摘要： An imaging device includes: a controller which generates a light emission signal and an exposure signal; a light source unit which receives the light emission signal and emits light; a light receiver which obtains the exposure amount of reflected light at a timing in accordance with the exposure signal; and a calculator which outputs a distance signal (distance image) by calculation on the basis of the amount of signals included in imaging signals received from the light receiver. The controller generates two or more patterns of varying phase relationships between the light emission signal and the exposure signal, and outputs the light emission signal and the exposure signal in a cycle that is different between at least two of the patterns.

公开(公告)号：US10062201B2

公开(公告)日：2018-08-28

申请号：US14692527

申请日：2015-04-21

申请人： Microsoft Technology Licensing, LLC

发明人： Sebastian Nowozin ,  Amit Adam ,  Christoph Dann

IPC分类号： G06T15/50 ,  G06T15/00 ,  G01S17/89 ,  G01S7/491 ,  G01S7/486 ,  G01S7/497 ,  G06K9/46 ,  G06K9/62

CPC分类号： G06T15/506 ,  G01S7/4868 ,  G01S7/4918 ,  G01S7/497 ,  G01S17/89 ,  G06K9/4661 ,  G06K9/6278 ,  G06T15/005 ,  G06T2207/10028 ,  G06T2215/16

摘要： Examples of time-of-flight (“TOF”) simulation of multipath light phenomena are described. For example, in addition to recording light intensity for a pixel during rendering, a graphics tool records the lengths (or times) and segment counts for light paths arriving at the pixel. Such multipath information can provide a characterization of the temporal light density of light that arrives at the pixel in response to one or more pulses of light. The graphics tool can use stratification and/or priority sampling to reduce variance in recorded light path samples. Realistic, physically-accurate simulation of multipath light phenomena can, in turn, help calibrate a TOF camera so that it more accurately estimates the depths of real world objects observed using the TOF camera. Various ways to improve the process of inferring imaging conditions such as depth, reflectivity, and ambient light based on images captured using a TOF camera are also described.

公开(公告)号：US20180143322A1

公开(公告)日：2018-05-24

申请号：US15862031

申请日：2018-01-04

申请人： Innoviz Technologies Ltd.

发明人： Oren Rosenzweig ,  Pavel Berman ,  Amit Steinberg ,  Julian Vlaiko ,  Nir Osiroff ,  Omer David Keilaf ,  Oren Buskila ,  Ronen Eshel

IPC分类号： G01S17/89 ,  G01S7/481 ,  G01S17/93

CPC分类号： G01S17/936 ,  B60Q1/0023 ,  B60Q1/26 ,  G01S7/4808 ,  G01S7/4814 ,  G01S7/4815 ,  G01S7/4817 ,  G01S7/484 ,  G01S7/4861 ,  G01S7/4863 ,  G01S7/4868 ,  G01S7/4876 ,  G01S7/497 ,  G01S7/4972 ,  G01S17/026 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89 ,  G01S17/93 ,  G05D1/024 ,  G05D2201/0213 ,  G08G1/04 ,  G08G1/166

摘要： A LIDAR system is provided. The LIDAR system comprises at least one processor configured to: control at least one light source in a manner enabling light flux of at least one light source to vary over a plurality of scans of a field of view, the field of view including a near-field portion and a far-field portion; control at least one light deflector to deflect light from the at least one light source in a manner scanning the field of view; implement a first scanning rate for first frames associated with scanning cycles that cover the near-field portion and a second scanning rate for second frames associated with scanning cycles that cover the far-field portion; and control the at least one light source to alter a light source parameter and thereby project light in a manner enabling detection of objects in the second frames associated with the far-field portion.

公开(公告)号：US20180136321A1

公开(公告)日：2018-05-17

申请号：US15352717

申请日：2016-11-16

申请人： Waymo LLC

发明人： Simon Verghese ,  Pierre-Yves Droz ,  Mark Shand

IPC分类号： G01S7/486 ,  G01S7/484 ,  G01S17/93 ,  G05D1/02

CPC分类号： G01S7/4868 ,  G01S7/484 ,  G01S7/4865 ,  G01S7/487 ,  G01S17/10 ,  G01S17/42 ,  G01S17/936 ,  G05D1/024

摘要： Described herein are methods and systems for protecting a light detection and ranging (LIDAR) device against external light that is originated at a light source other than a light source of the LIDAR device and that is being emitted towards the LIDAR device. In particular, the LIDAR device may be equipped with a mitigation system that includes an interference filter, an absorptive filter, an adaptive filter, and/or a spatial filter. Additionally or alternatively, the LIDAR device may be operated to carry out reactive and/or proactive mitigation operations. For example, the LIDAR device may be operated to vary over time characteristics with which light is being emitted and to only detect light having characteristics that match the characteristics with which light is being emitted. In another example, the LIDAR device may be operated to activate a shutter to block the external light from being detected by the LIDAR device.

公开(公告)号：US20180106900A1

公开(公告)日：2018-04-19

申请号：US15292251

申请日：2016-10-13

申请人： Google Inc.

发明人： Pierre-Yves Droz ,  Blaise Gassend ,  Caner Onal ,  David Hutchison

IPC分类号： G01S17/08 ,  G01J1/44 ,  G01J1/04 ,  G01J1/42 ,  G01S7/481

CPC分类号： G01S17/08 ,  G01J1/0411 ,  G01J1/0414 ,  G01J1/0422 ,  G01J1/0437 ,  G01J1/0448 ,  G01J1/0474 ,  G01J1/0488 ,  G01J1/4228 ,  G01J1/44 ,  G01J3/0208 ,  G01J3/0229 ,  G01J2001/442 ,  G01J2001/4466 ,  G01S7/481 ,  G01S7/4816 ,  G01S7/4863 ,  G01S7/4868 ,  G01S17/10

摘要： The present disclosure relates to limitation of noise on light detectors using an aperture. One example embodiment includes a system. The system includes a lens disposed relative to a scene and configured to focus light from the scene onto a focal plane. The system also includes an aperture defined within an opaque material disposed at the focal plane of the lens. The aperture has a cross-sectional area. In addition, the system includes an array of light detectors disposed on a side of the focal plane opposite the lens and configured to intercept and detect diverging light focused by the lens and transmitted through the aperture. A cross-sectional area of the array of light detectors that intercepts the diverging light is greater than the cross-sectional area of the aperture.

公开(公告)号：US20180095168A1

公开(公告)日：2018-04-05

申请号：US15722303

申请日：2017-10-02

申请人： SICK AG

发明人： Christoph HOFMANN ,  Markus HAMMES ,  Joachim KRÄMER ,  Jörg SIGMUND

IPC分类号： G01S7/486 ,  G01S17/10 ,  G01S3/783

CPC分类号： G01S7/4865 ,  G01S3/783 ,  G01S7/4868 ,  G01S7/497 ,  G01S17/10 ,  G01S17/87 ,  G01S17/89

摘要： An optoelectronic sensor (10) for monitoring a monitoring region (12), the sensor (10) comprising an image sensor (16a-b), an illumination unit (20) for at least partially illuminating the monitoring region (12) with an illumination field (26), an illumination control (28) configured for a power adaption of the illumination unit (20) for meeting safety requirements, and an additional distance-measuring optoelectronic sensor (38) for detecting the distance at which an object (42) is located in the illumination field (26), wherein the illumination control (28) is configured for a power adaption in dependence on the distance measured by the additional sensor (38).

公开(公告)号：US20180059224A1

公开(公告)日：2018-03-01

申请号：US15340972

申请日：2016-11-01

申请人： Samsung Electronics Co., Ltd.

发明人： Yibing Michelle WANG ,  Tae-Yon LEE ,  Ilia OVSIANNIKOV

IPC分类号： G01S7/486 ,  G01S17/10 ,  G01S17/89

CPC分类号： G01S7/4863 ,  G01S7/4865 ,  G01S7/4868 ,  G01S17/10 ,  G01S17/89

摘要： The Time-of-Flight (TOF) technique is combined with analog amplitude modulation within each pixel in an image sensor. The pixel may be a two-tap pixel or a one-tap pixel. Two photoelectron receiver circuits in the pixel receive respective analog modulating signals. The distribution of the received photoelectron charge between these two circuits is controlled by the difference (or ratio) of the two analog modulating voltages. The differential signals generated in this manner within the pixel are modulated in time domain for TOF measurement. Thus, 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 TOF-based measurement of range and its resolution are controllable by changing the duration of modulation. An autonomous navigation system with these features may provide improved vision for drivers under difficult driving conditions like low light, fog, bad weather, or strong ambient light.

公开(公告)号：US20180038959A1

公开(公告)日：2018-02-08

申请号：US15729324

申请日：2017-10-10

申请人： Kazuhiro AKATSU ,  Tadashi NAKAMURA ,  Kohji SAKAI

发明人： Kazuhiro AKATSU ,  Tadashi NAKAMURA ,  Kohji SAKAI

IPC分类号： G01S17/42 ,  G01S7/486 ,  G01S7/484 ,  G01S7/481 ,  G01S17/93 ,  G01S7/51 ,  H05B37/02

CPC分类号： G01S17/42 ,  G01S7/4815 ,  G01S7/484 ,  G01S7/4868 ,  G01S7/51 ,  G01S17/936 ,  H05B37/0227

摘要： An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.

公开(公告)号：US09874630B2

公开(公告)日：2018-01-23

申请号：US14609475

申请日：2015-01-30

申请人： Microsoft Technology Licensing, LLC.

发明人： Michael Hall ,  Algird Gudaitis

IPC分类号： G01S7/486 ,  G01B11/14 ,  H04N5/235 ,  G01S17/08 ,  G01S17/89 ,  G01N21/86 ,  G01S17/10

CPC分类号： G01S7/4868 ,  G01B11/14 ,  G01S7/4865 ,  G01S17/08 ,  G01S17/107 ,  G01S17/89 ,  H04N5/2353

摘要： A gated time of flight (GT-TOF) range camera that transmits a plurality of light pulses to illuminate features in a scene and gates ON a photosensor in the camera for one multi-exposure gate having a plurality of exposure periods following each of the plurality of light pulses to register amounts of light reflected by features in the scene from the light pulses and uses the registered amounts of light to determine distances to the features.

公开(公告)号：US20170356981A1

公开(公告)日：2017-12-14

申请号：US15605611

申请日：2017-05-25

申请人： STMICROELECTRONICS, INC.

发明人： Xiaoyong YANG ,  Rui XIAO ,  Arnaud DELEULE

IPC分类号： G01S7/484 ,  G01S7/486 ,  G01S17/10

CPC分类号： G01S7/484 ,  G01S7/4868 ,  G01S17/10

摘要： A time of flight range detection device includes a laser configured to transmit an optical pulse into an image scene, a return single-photon avalanche diode (SPAD) array, a reference SPAD array, a range detection circuit coupled to the return SPAD array and the reference SPAD array, and a laser driver circuit. The range detection circuit in operation determines a distance to an object based on signals from the return SPAD array and the reference SPAD array. The laser driver circuit in operation varies an output power level of the laser in response to the determined distance to the object.