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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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公开(公告)号：US20190005678A1
公开(公告)日：2019-01-03
申请号：US15640821
申请日：2017-07-03
Applicant: QUALCOMM Incorporated
IPC: G06T7/73
Abstract: A device includes a first camera and a processor configured to detect one or more first keypoints within a first image captured by the first camera at a first time, detect one or more second keypoints within a second image captured by a second camera at the first time, and detect the one or more first keypoints within a third image captured by the first camera at a second time. The processor is configured to determine a pose estimation based on coordinates of the one or more first keypoints of the first image relative to a common coordinate system, coordinates of the one or more second keypoints of the second image relative to the common coordinate system, and coordinates of the one or more first keypoints of the third image relative to the common coordinate system. The first coordinate system is different than the common coordinate system.
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33.发明申请公开(公告)号：US20180321384A1
公开(公告)日：2018-11-08
申请号：US15588468
申请日：2017-05-05
Applicant: QUALCOMM Incorporated
Inventor： Albrecht Johannes Lindner , Kalin Mitkov Atanassov , James Wilson Nash
CPC classification number: G01S17/89 , G01S7/4808 , G01S7/4911 , G01S17/42 , G06T7/521
Abstract: Systems, methods, and devices for generating a depth map of a scene are provided. The method comprises projecting, onto the scene, a codeword pattern including a plurality of light points including a first set of light points projected at a first intensity and a second set of light points projected at a second intensity greater than the first intensity. The method further comprises detecting, from the scene, a reflection of the codeword pattern. The method further comprises generating a first depth map layer at a first resolution. The method further comprises generating a second depth map layer at a second resolution lower than the first resolution. The method further comprises generating the depth map of the scene, wherein the depth map includes depth information for the scene according to each of the first depth map layer and the second depth map layer.
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公开(公告)号：US20180160046A1
公开(公告)日：2018-06-07
申请号：US15370926
申请日：2016-12-06
Applicant: QUALCOMM Incorporated
CPC classification number: H04N5/23296 , H04N5/2258 , H04N5/23293 , H04N2013/0081
Abstract: A method for displaying preview images is disclosed. In one aspect, the method includes: receiving first images captured by a first camera having a first field-of-view (FOV), receiving second images captured by a second camera having a second FOV that is different than the first FOV, and displaying preview images generated based on the first and second images. The method may further include determining a spatial transform based on depth information associated with individual pixels in the first and second images, and upon receiving instructions to zoom in or out beyond a camera switching threshold, modifying the second image using the spatial transform and displaying the first image and the modified second image consecutively.
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公开(公告)号：US09921688B2
公开(公告)日：2018-03-20
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.
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Patent Agency Ranking
公开(公告)号：US20180025496A1
公开(公告)日：2018-01-25
申请号：US15214141
申请日：2016-07-19
Applicant: QUALCOMM Incorporated
Inventor： Albrecht Johannes Lindner , Kalin Mitkov Atanassov , James Wilson Nash
CPC classification number: G06T15/04 , G06T1/20 , G06T7/50 , G06T17/00 , G06T2200/04 , G06T2200/08 , G06T2207/10012 , G06T2207/10028 , G06T2210/56
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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公开(公告)号：US09558436B2
公开(公告)日：2017-01-31
申请号：US14491521
申请日：2014-09-19
Applicant: QUALCOMM Incorporated
Inventor： James Wilson Nash , Kalin Mitkov Atanassov , Stephen Michael Verrall
CPC classification number: G06K19/06037 , G02B5/1857 , G02B27/4205 , G02B27/4266 , G06K9/2036 , G06T15/506
Abstract: A method includes identifying one or more codewords of a bit sequence that fail to satisfy at least one codeword constraint. The method also includes removing the one or more codewords from the bit sequence to generate a punctured bit sequence. The method further includes determining whether the punctured bit sequence is symmetric. The method includes, in response to determining that the punctured bit sequence is symmetric, generating a hermitian symmetric codebook primitive based at least in part on the punctured bit sequence, where the hermitian symmetric codebook primitive is useable to form a diffractive optical element (DOE) of a structured light depth sensing system.
Abstract translation: 一种方法包括识别不满足至少一个码字约束的比特序列的一个或多个码字。 该方法还包括从比特序列中移除一个或多个码字以产生一个穿孔比特序列。 该方法还包括确定穿孔比特序列是否是对称的。 该方法包括响应于确定穿孔比特序列是对称的，至少部分地基于穿孔比特序列生成隐形对称码本原语，其中，密码对称码本原语可用于形成衍射光学元件（DOE） 的结构光深度感测系统。
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公开(公告)号：US10565726B2
公开(公告)日：2020-02-18
申请号：US15640821
申请日：2017-07-03
Applicant: QUALCOMM Incorporated
IPC: G06T7/73
Abstract: A device includes a first camera and a processor configured to detect one or more first keypoints within a first image captured by the first camera at a first time, detect one or more second keypoints within a second image captured by a second camera at the first time, and detect the one or more first keypoints within a third image captured by the first camera at a second time. The processor is configured to determine a pose estimation based on coordinates of the one or more first keypoints of the first image relative to a common coordinate system, coordinates of the one or more second keypoints of the second image relative to the common coordinate system, and coordinates of the one or more first keypoints of the third image relative to the common coordinate system. The first coordinate system is different than the common coordinate system.
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公开(公告)号：US10194089B2
公开(公告)日：2019-01-29
申请号：US15017898
申请日：2016-02-08
Applicant: QUALCOMM Incorporated
Inventor： James Wilson Nash , Kalin Mitkov Atanassov , Sergiu Radu Goma , Narayana Karthik Sadanandam Ravirala , Venkata Ravi Kiran Dayana , Karthikeyan Shanmugavadivelu
IPC: G06T7/30 , H04N5/232 , H04N5/247 , G06T3/00 , G06T5/50 , H04N5/225 , H04N5/268 , H04N9/04 , H04N13/02 , H04N17/00
Abstract: Devices and methods for providing seamless preview images for multi-camera devices having two or more asymmetric cameras. A multi-camera device may include two asymmetric cameras disposed to image a target scene. The multi-camera device further includes a processor coupled to a memory component and a display, the processor configured to retrieve an image generated by a first camera from the memory component, retrieve an image generated by a second camera from the memory component, receive input corresponding to a preview zoom level, retrieve spatial transform information and photometric transform information from memory, modify at least one image received from the first and second cameras by the spatial transform and the photometric transform, and provide on the display a preview image comprising at least a portion of the at least one modified image and a portion of either the first image or the second image based on the preview zoom level.
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公开(公告)号：US10013764B2
公开(公告)日：2018-07-03
申请号：US14309458
申请日：2014-06-19
Applicant: QUALCOMM Incorporated
Inventor： Kalin Mitkov Atanassov , James Wilson Nash , Stephen Michael Verrall , Hasib Ahmed Siddiqui
CPC classification number: G06T7/33 , G06T5/008 , G06T5/40 , G06T7/593 , G06T19/20 , G06T2207/10012 , G06T2207/10024 , G06T2207/10048 , G06T2207/20021 , H04N5/23229 , H04N13/239 , H04N13/257
Abstract: Certain aspects relate to systems and techniques for performing local intensity equalization on images in a set of images exhibiting local intensity variations. For example, the local intensity equalization can be used to perform accurate region matching and alignment of the images. The images can be partitioned into regions of pixel blocks, for instance based on location, shape, and size of identified keypoints in the images. Regions depicting the same feature in the images can be equalized with respect to intensity. Region matching based on the keypoints in the intensity-equalized regions can be performed with accuracy even in images captured by asymmetric sensors or exhibiting spatially varying intensity.
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