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公开(公告)号：US09635339B2
公开(公告)日：2017-04-25
申请号：US14827088
申请日：2015-08-14
Applicant: QUALCOMM Incorporated
Inventor： Shandon Campbell , Stephen Michael Verrall , Kalin Mitkov Atanassov , Ovidiu Cristian Miclea
CPC classification number: H04N13/128 , G06T5/005 , G06T7/521 , G06T2207/10028 , H04N13/161 , H04N2013/0081
Abstract: Systems and methods for correcting errors in a depth map generated by a structured light system are disclosed. In one aspect, a method includes receiving valid and invalid codewords, the valid spatial codewords included in a codebook. The method includes detecting the invalid codeword. The method includes retrieving a set of candidate valid codewords a lowest Hamming distance between the invalid codeword and the valid codewords in the codebook. The method includes estimating a median depth of neighboring locations of the invalid codeword. The method includes associating a depth with each candidate codeword and selecting the candidate with an associated depth closest to the depth estimate. The method includes assigning the depth associated with the selected candidate codeword to the location of the invalid codeword.
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公开(公告)号：US10922829B2
公开(公告)日：2021-02-16
申请号：US16408198
申请日：2019-05-09
Applicant: QUALCOMM Incorporated
Inventor： James Wilson Nash , Kalin Mitkov Atanassov , Shandon Campbell
Abstract: A device for image processing includes an optical receiver configured to receive a reflection of a coded pattern from an object to generate an image, and processing circuitry. The processing circuitry is configured to determine an estimated position of zero order light in the image, determine a spatial region of the coded pattern that corresponds to a position of the zero order light in the coded pattern, map the spatial region to the estimated position of the zero order light in the image to generate a corrected image, and generate a depth map for the coded pattern based on the corrected image.
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Patent Agency Ranking
公开(公告)号：US20160212410A1
公开(公告)日：2016-07-21
申请号：US14598791
申请日：2015-01-16
Applicant: QUALCOMM Incorporated
Inventor： Shandon Campbell , Kalin Mitkov Atanassov , Karthikeyan Shanmugavadivelu , Stephen Michael Verrall
CPC classification number: H04N13/271 , G01S17/46 , G06K9/3241 , G06T2207/10012 , G06T2207/10028 , G06T2207/10152 , H04N5/2253 , H04N5/232 , H04N5/23212 , H04N2013/0081
Abstract: Systems and methods of triggering an event based on meeting a certain depth criteria in an image. One innovation of a method includes a identifying at least one object in a field of view of an imaging device, the imaging device configured to capture at least one image of the field of view, determining a threshold depth level, measuring a depth of the at least one object within the field of view with respect to the imaging device, comparing the measured depth of the at least one object to the threshold depth level, and capturing an image of the object when the depth of the object within the field of view exceeds the threshold depth level.
Abstract translation: 基于在图像中满足一定深度标准触发事件的系统和方法。 方法的一个创新包括识别成像装置的视场中的至少一个物体，所述成像装置被配置成捕获所述视场的至少一个图像，确定阈值深度水平，测量所述at的深度 在成像装置的视野内的至少一个物体，将所测量的至少一个物体的深度与阈值深度水平进行比较，以及当视场内的物体的深度超过时捕获物体的图像 阈值深度级别。
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公开(公告)号：US20180084240A1
公开(公告)日：2018-03-22
申请号：US15268330
申请日：2016-09-16
Applicant: QUALCOMM Incorporated
Inventor： Shandon Campbell , Stephen Michael VerraII , Kalin Mitkov Atanassov
CPC classification number: H04N13/254 , G06T7/0002 , G06T2207/10028 , H04N5/2351 , H04N5/2353 , H04N5/238 , H04N13/128 , H04N2013/0081
Abstract: Methods and apparatus for active depth sensing are disclosed. In some aspects, an imaging device may generate first depth information based on an active sensing technology, such as structured light. In some aspects, at least some of the first depth information may be missing or inaccurate, perhaps due to an extended range between the imaging device and a subject of the image. Additional range information may then be generated based on a zero order component of the structured light. The additional range information may then be used alone or combined with the first depth information and used to control one or more parameters of an imaging device, such as an exposure time and/or aperture.
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公开(公告)号：US20170048507A1
公开(公告)日：2017-02-16
申请号：US14827088
申请日：2015-08-14
Applicant: QUALCOMM Incorporated
Inventor： Shandon Campbell , Stephen Michael VerraII , Kalin Mitkov Atanassov , Ovidiu Cristian Miclea
IPC: H04N13/00
CPC classification number: H04N13/128 , G06T5/005 , G06T7/521 , G06T2207/10028 , H04N13/161 , H04N2013/0081
Abstract: Systems and methods for correcting errors in a depth map generated by a structured light system are disclosed. In one aspect, a method includes receiving valid and invalid codewords, the valid spatial codewords included in a codebook. The method includes detecting the invalid codeword. The method includes retrieving a set of candidate valid codewords a lowest Hamming distance between the invalid codeword and the valid codewords in the codebook. The method includes estimating a median depth of neighboring locations of the invalid codeword. The method includes associating a depth with each candidate codeword and selecting the candidate with an associated depth closest to the depth estimate. The method includes assigning the depth associated with the selected candidate codeword to the location of the invalid codeword.
Abstract translation: 公开了一种用于校正由结构化光系统生成的深度图中的误差的系统和方法。 一方面，一种方法包括接收有效和无效码字，包括在码本中的有效空间码字。 该方法包括检测无效码字。 该方法包括在码本中检索无效码字与有效码字之间的最低汉明距离的一组候选有效码字。 该方法包括估计无效码字的相邻位置的中间深度。 该方法包括将深度与每个候选码字相关联，并且选择具有最接近深度估计的相关深度的候选。 该方法包括将与所选候选码字相关联的深度分配给无效码字的位置。
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公开(公告)号：US10277888B2
公开(公告)日：2019-04-30
申请号：US14598791
申请日：2015-01-16
Applicant: QUALCOMM Incorporated
Inventor： Shandon Campbell , Kalin Mitkov Atanassov , Karthikeyan Shanmugavadivelu , Stephen Michael Verrall
Abstract: Systems and methods of triggering an event based on meeting a certain depth criteria in an image. One innovation of a method includes a identifying at least one object in a field of view of an imaging device, the imaging device configured to capture at least one image of the field of view, determining a threshold depth level, measuring a depth of the at least one object within the field of view with respect to the imaging device, comparing the measured depth of the at least one object to the threshold depth level, and capturing an image of the object when the depth of the object within the field of view exceeds the threshold depth level.
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公开(公告)号：US10021372B2
公开(公告)日：2018-07-10
申请号：US15268330
申请日：2016-09-16
Applicant: QUALCOMM Incorporated
Inventor： Shandon Campbell , Stephen Michael Verrall , Kalin Mitkov Atanassov
CPC classification number: H04N13/254 , G06T7/0002 , G06T7/521 , G06T2207/10028 , H04N5/2351 , H04N5/2353 , H04N5/238 , H04N13/128 , H04N13/271 , H04N2013/0081
Abstract: Methods and apparatus for active depth sensing are disclosed. In some aspects, an imaging device may generate first depth information based on an active sensing technology, such as structured light. In some aspects, at least some of the first depth information may be missing or inaccurate, perhaps due to an extended range between the imaging device and a subject of the image. Additional range information may then be generated based on a zero order component of the structured light. The additional range information may then be used alone or combined with the first depth information and used to control one or more parameters of an imaging device, such as an exposure time and/or aperture.
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