公开(公告)号：US11740075B2

公开(公告)日：2023-08-29

申请号：US17504004

申请日：2021-10-18

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Michael Hall ,  Xinqiao Liu ,  Zhaoming Zhu ,  Rajesh Lachhmandas Chhabria ,  Huixuan Tang ,  Shuochen Su ,  Zihe Gao

IPC: G06T7/521 ,  G01B11/22 ,  G01B11/25 ,  G06T7/529 ,  G02B27/01 ,  G06T7/11 ,  G06T7/174 ,  G06T7/55 ,  G06T7/00 ,  G06T7/90 ,  H04N13/106 ,  H04N13/204 ,  G06T7/593 ,  H04N13/128 ,  H04N13/271 ,  H04N13/239 ,  H04N23/56 ,  G06V10/22 ,  G06V10/145 ,  H04N13/00

CPC classification number: G01B11/2513 ,  G01B11/22 ,  G02B27/0172 ,  G06T7/11 ,  G06T7/174 ,  G06T7/521 ,  G06T7/529 ,  G06T7/55 ,  G06T7/593 ,  G06T7/90 ,  G06T7/97 ,  G06V10/145 ,  G06V10/22 ,  H04N13/106 ,  H04N13/128 ,  H04N13/204 ,  H04N13/239 ,  H04N13/271 ,  H04N23/56 ,  G02B2027/014 ,  G02B2027/0138 ,  G02B2027/0178 ,  G06T2207/10028 ,  H04N2013/0081

Abstract: A depth camera assembly (DCA) determines depth information. The DCA projects a dynamic structured light pattern into a local area and captures images including a portion of the dynamic structured light pattern. The DCA determines regions of interest in which it may be beneficial to increase or decrease an amount of texture added to the region of interest using the dynamic structured light pattern. For example, the DCA may identify the regions of interest based on contrast values calculated using a contrast algorithm, or based on the parameters received from a mapping server including a virtual model of the local area. The DCA may selectively increase or decrease an amount of texture added by the dynamic structured light pattern in portions of the local area. By selectively controlling portions of the dynamic structured light pattern, the DCA may decrease power consumption and/or increase the accuracy of depth sensing measurements.

公开(公告)号：US11601607B2

公开(公告)日：2023-03-07

申请号：US17069709

申请日：2020-10-13

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Rajesh Lachhmandas Chhabria ,  Shuochen Su ,  Monica Stewart ,  David Vakrat ,  Shengqiong Xie ,  Michael Hall

IPC: H04N5/33 ,  G02B27/00 ,  G02B27/01

Abstract: An electronic device includes one or more processors and memory storing instructions for execution by the one or more processors. The stored instructions include instructions for: receiving infrared image information for a three-dimensional area; receiving non-infrared image information for the same three-dimensional area; performing nonlinear intensity adjustment for the received infrared image information; performing nonlinear intensity adjustment for the received non-infrared image information; blending the intensity-adjusted infrared image information and the intensity-adjusted non-infrared image information to obtain a merged image information; and providing the merged image information for determining a depth map. Also disclosed are a corresponding method performed by the electronic device and a computer readable storage medium storing instructions for execution by one or more processors of an electronic device.

公开(公告)号：US11703323B2

公开(公告)日：2023-07-18

申请号：US17230109

申请日：2021-04-14

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Michael Hall ,  Xinqiao Liu ,  Zhaoming Zhu ,  Rajesh Lachhmandas Chhabria ,  Huixuan Tang ,  Shuochen Su

IPC: G06T7/00 ,  G01B11/25 ,  G06T7/521 ,  G06T7/529 ,  G02B27/01 ,  G06T7/11 ,  G06T7/174 ,  G01B11/22 ,  G06T7/55 ,  G06T7/90 ,  H04N13/106 ,  H04N13/204 ,  G06T7/593 ,  H04N13/128 ,  H04N13/271 ,  H04N13/239 ,  H04N23/56 ,  G06V10/22 ,  G06V10/145 ,  H04N13/00

CPC classification number: G01B11/2513 ,  G01B11/22 ,  G02B27/0172 ,  G06T7/11 ,  G06T7/174 ,  G06T7/521 ,  G06T7/529 ,  G06T7/55 ,  G06T7/593 ,  G06T7/90 ,  G06T7/97 ,  G06V10/145 ,  G06V10/22 ,  H04N13/106 ,  H04N13/128 ,  H04N13/204 ,  H04N13/239 ,  H04N13/271 ,  H04N23/56 ,  G02B2027/014 ,  G02B2027/0138 ,  G02B2027/0178 ,  G06T2207/10028 ,  H04N2013/0081

Abstract: A depth estimation system is described capable of determining depth information using two images from two cameras. A first camera captures a first image and a second camera captures a second image, both images including a plurality of light channels. A scan direction is selected from a plurality of scan directions. For the selected scan direction, along each of a plurality of scanlines, the system compares pixels from the first image to pixels from the second image. The comparison is based on calculating a census transform for each pixel in the first image and a census transform for each pixel in the second image. This comparison is used to determine a stereo correspondence between the pixels in the first image and the pixels in the second image. The system generates a depth map based on the stereo correspondence.

公开(公告)号：US11676293B2

公开(公告)日：2023-06-13

申请号：US17122609

申请日：2020-12-15

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： James Steven Hegarty ,  Zijian Wang ,  Steven John Lovegrove ,  Yongjun Kim ,  Rajesh Lachhmandas Chhabria

IPC: G06T7/521 ,  G06T9/00 ,  G06T5/00 ,  G06F18/22

CPC classification number: G06T7/521 ,  G06F18/22 ,  G06T5/002 ,  G06T9/00

Abstract: A method for depth sensing from an image of a projected pattern is performed at an electronic device with one or more processors and memory. The method includes receiving an image of a projection of an illumination pattern; for a portion of the image, selecting a candidate image of a plurality of candidate images by comparing the portion of the image with a plurality of candidate images; and determining a depth for the portion of the image based on depth information associated with the selected candidate image. Related electronic devices and computer readable storage medium are also disclosed.