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公开(公告)号：US20180124378A1
公开(公告)日：2018-05-03
申请号：US15342912
申请日：2016-11-03
Applicant: QUALCOMM Incorporated
Inventor： Bijan Forutanpour , Stephen Michael Verrall , Kalin Mitkov Atanassov , Albrecht Johannes Lindner
IPC: H04N13/02
CPC classification number: H04N13/225 , G06T5/005 , G06T7/50 , G06T2207/10028 , H04N2013/0081
Abstract: In general, techniques are described that facilitate processing of a depth map image in mobile devices. A mobile device comprising a depth camera, a camera and a processor may be configured to perform various aspects of the techniques. The depth camera may be configured to capture a depth map image of a scene. The camera may include a linear polarization unit configured to linearly polarize light entering into the camera. The camera may be configured to rotate the linearly polarization unit during capture of the scene to generate a sequence of linearly polarized images of the scene having different polarization orientations. The processor may be configured to perform image registration with respect to the sequence of linearly polarized images to generate a sequence of aligned linearly polarized images, and generate an enhanced depth map image based on the depth map image and the sequence of aligned linearly polarized images.
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公开(公告)号：US20180068456A1
公开(公告)日：2018-03-08
申请号：US15808586
申请日：2017-11-09
Applicant: QUALCOMM Incorporated
Inventor： James Wilson Nash , Kalin Mitkov Atanassov , Albrecht Johannes Lindner
CPC classification number: G06T7/50 , G01B11/22 , G01B11/2513 , G06K9/18 , G06K9/4661 , G06K9/52 , G06K9/6215 , G06K9/6267 , G06T7/521
Abstract: Systems and methods for controlling structured light laser systems are disclosed. One aspect is a structured light system. The system includes a memory device configured to store a depth map. The system further includes an image projecting device including a laser system configured to project codewords. The system further includes a receiver device including a sensor, the receiver device configured to sense the projected codewords reflected from an object. The system further includes a processing circuit configured to retrieve a portion of the depth map and calculate expected codewords from the depth map. The system further includes a feedback system configured to control the output power of the laser system based on the sensed codewords and the expected codewords.
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公开(公告)号：US09883119B1
公开(公告)日：2018-01-30
申请号：US15273556
申请日：2016-09-22
Applicant: QUALCOMM Incorporated
Inventor： Kalin Mitkov Atanassov , Sergiu Radu Goma , Stephen Michael Verrall , Albrecht Johannes Lindner
CPC classification number: H04N5/265 , G06T7/00 , G06T7/0022 , G06T7/2006 , G06T7/408 , H04N5/144 , H04N5/23254 , H04N5/23267 , H04N5/23293 , H04N5/2351 , H04N5/2355
Abstract: System and methods for performing motion sensitive high dynamic range (HDR) image processing. A saturation analysis circuit is configured to receive a set of image data corresponding to portions of a set of image frames having different exposures time from a lowest exposure time to a highest exposure time, and select image data from a frame that does not exceed the saturation threshold value. A motion detection circuit may be configured to determine whether the image data is associated with movement, by comparing image data from pairs of frames of adjacent exposure times, and changing the selection to a lower exposure time frame if movement is detected. By selecting which exposure time is used based upon movement in the image frame, ghosting and blurring in HDR images containing movement can be reduced.
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公开(公告)号：US09846943B2
公开(公告)日：2017-12-19
申请号：US15060028
申请日：2016-03-03
Applicant: QUALCOMM Incorporated
Inventor： James Wilson Nash , Kalin Mitkov Atanassov , Albrecht Johannes Lindner
IPC: G06K9/00 , G06T7/00 , G06K9/18 , G06K9/46 , G06K9/62 , G06K9/52 , G01B11/22 , G01B11/25 , G06T7/521
CPC classification number: G06T7/50 , G01B11/22 , G01B11/2513 , G06K9/18 , G06K9/4661 , G06K9/52 , G06K9/6215 , G06K9/6267 , G06T7/521
Abstract: Systems and methods for controlling structured light laser systems are disclosed. One aspect is a structured light system. The system includes a memory device configured to store a depth map. The system further includes an image projecting device including a laser system configured to project codewords. The system further includes a receiver device including a sensor, the receiver device configured to sense the projected codewords reflected from an object. The system further includes a processing circuit configured to retrieve a portion of the depth map and calculate expected codewords from the depth map. The system further includes a feedback system configured to control the output power of the laser system based on the sensed codewords and the expected codewords.
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公开(公告)号：US20150253931A1
公开(公告)日：2015-09-10
申请号：US14626679
申请日：2015-02-19
Applicant: QUALCOMM Incorporated
Inventor： John Michael Wyrwas , Russell Wayne Gruhlke , Khurshid Syed Alam , Kalin Mitkov Atanassov , Vikas Ramachandra , Hasib Ahmed Siddiqui , James Wilson Nash , Robert Mitchell Kleiman , Albrecht Johannes Lindner , Evgeni Petrovich Gousev
CPC classification number: G06F3/0425 , G06F3/0412 , G06F3/0416 , G06F3/0421 , G06F2203/04104
Abstract: An interactive display, including a cover glass having a front surface that includes a viewing area provides an input/output (I/O) interface for a user of an electronic device. An arrangement includes a processor, a light source, and a camera disposed outside the periphery of the viewing area coplanar with or behind the cover glass. The camera receives scattered light resulting from interaction, with an object, of light outputted from the interactive display, the outputted light being received by the cover glass from the object and directed toward the camera. The processor determines, from image data output by the camera, an azimuthal angle of the object with respect to an optical axis of the camera and/or a distance of the object from the camera.
Abstract translation: 交互式显示器，包括具有包括观看区域的前表面的玻璃罩提供用于电子设备的用户的输入/输出（I / O）接口。 布置包括处理器，光源和布置在与玻璃罩之间或之后共面的观察区域的外围之外的照相机。 照相机接收由交互式显示器输出的光线与物体相互作用产生的散射光，所输出的光被盖玻片从物体接收并被引向相机。 处理器根据相机输出的图像数据确定物体相对于照相机的光轴的方位角和/或物体与照相机的距离。
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Patent Agency Ranking
公开(公告)号：US11187804B2
公开(公告)日：2021-11-30
申请号：US15992746
申请日：2018-05-30
Applicant: QUALCOMM Incorporated
Inventor： Albrecht Johannes Lindner , Htet Naing , Kalin Atanassov
Abstract: Aspects of the present disclosure relate to systems and methods for determining one or more depths. An example system includes a time-of-flight receiver configured to sense pulses from reflections of light from a structured light transmitter. An example method includes sensing, by a time-of-flight receiver, pulses from reflections of light from a structured light transmitter.
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公开(公告)号：US11042723B2
公开(公告)日：2021-06-22
申请号：US16359441
申请日：2019-03-20
Applicant: QUALCOMM Incorporated
Inventor： Albrecht Johannes Lindner , Volodimir Slobodyanyuk , Stephen Michael Verrall , Kalin Mitkov Atanassov
Abstract: A method and electronic device for selectively obtaining depth information at locations within a scene are described. Image content analysis is performed on a received image of the scene. Locations within the image to obtain depth information within the scene are determined based on the image analysis. The locations are provided to a LIDAR (light+radar) unit to selectively obtain depth information at the scene locations. The depth information is received from the LIDAR unit and a second image analysis is performed on a second image. The second image analysis is based on the image content of the second image and the received depth information. Updated locations based on the second image analysis may be provided to the LIDAR unit to obtain updated depth information.
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公开(公告)号：US20190180475A1
公开(公告)日：2019-06-13
申请号：US15835693
申请日：2017-12-08
Applicant: QUALCOMM Incorporated
Inventor： James Wilson Nash , Kalin Mitkov Atanassov , Albrecht Johannes Lindner , Justin Cheng
Abstract: Client calibration can include: (a) instructing a host to display a first desired target, (b) imaging the first displayed target, (c) determining a second desired target based on the imaging, (d) instructing the host to display a second desired target, and (e) adjusting a calibration parameter based on one or more images of the second desired target. The second desired target can be determined (e.g., selected, dynamically generated) based on the first desired target.
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公开(公告)号：US10223801B2
公开(公告)日：2019-03-05
申请号：US15808586
申请日：2017-11-09
Applicant: QUALCOMM Incorporated
Inventor： James Wilson Nash , Kalin Mitkov Atanassov , Albrecht Johannes Lindner
IPC: G06K9/00 , G06T7/50 , G06K9/18 , G06K9/46 , G06K9/62 , G06K9/52 , G01B11/22 , G01B11/25 , G06T7/521
Abstract: Systems and methods for controlling structured light laser systems are disclosed. One aspect is a structured light system. The system includes a memory device configured to store a depth map. The system further includes an image projecting device including a laser system configured to project codewords. The system further includes a receiver device including a sensor, the receiver device configured to sense the projected codewords reflected from an object. The system further includes a processing circuit configured to retrieve a portion of the depth map and calculate expected codewords from the depth map. The system further includes a feedback system configured to control the output power of the laser system based on the sensed codewords and the expected codewords.
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公开(公告)号：US10192345B2
公开(公告)日：2019-01-29
申请号：US15214141
申请日：2016-07-19
Applicant: QUALCOMM Incorporated
Inventor： Albrecht Johannes Lindner , Kalin Mitkov Atanassov , James Wilson Nash
Abstract: Methods and systems for surface normal estimation are disclosed. In some aspects, a plurality of images or depth maps representing a three dimensional object from multiple viewpoints is received. Surface normals at surface points within a single image of the plurality of images are estimated based on surface points within the single image. An electronic representation of a three dimensional surface of the object is generated based on the surface normals and a point cloud comprised of surface points derived from the plurality of images.
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