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

IPC: H04N13/02 ,  H04N13/00 ,  G06T7/00

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.

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。