公开(公告)号：US11509880B2

公开(公告)日：2022-11-22

申请号：US13723891

申请日：2012-12-21

Applicant: QUALCOMM Incorporated

Inventor： Judit Martinez Bauza ,  Kalin Mitkov Atanassov ,  Sergiu Radu Goma

IPC: H04N13/207 ,  G01B11/25 ,  G06T5/50 ,  G06T7/521

Abstract: A method and device is provided that compensates for different reflectivity/absorption coefficients of objects in a scene/object when performing active depth sensing using structured light. A receiver sensor captures an image of a scene onto which a code mask is projected. One or more parameters are ascertained from the captured image. Then a light source power for a projecting light source is dynamically adjusted according to the one or more parameters to improve decoding of the code mask in a subsequently captured image. Depth information for the scene may then be ascertained based on the captured image based on the code mask. In one example, the light source power is fixed at a particular illumination while an exposure time for the receiver sensor is adjusted. In another example, an exposure time for the receiver sensor is maintained/kept at a fixed value while the light source power is adjusted.

公开(公告)号：US10368053B2

公开(公告)日：2019-07-30

申请号：US13723873

申请日：2012-12-21

Applicant: QUALCOMM Incorporated

Inventor： Judit Martinez Bauza ,  Kalin Mitkov Atanassov ,  Sergiu Radu Goma

IPC: H04N5/265 ,  H04N13/20 ,  H04N13/207 ,  G01B11/25 ,  G06T5/50 ,  G06T7/521

Abstract: A receiver sensor captures a plurality of images, at two or more (different) exposure times, of a scene onto which a code mask is projected. The two or more of the plurality of images are combined by extracting decodable portions of the code mask from each image to generate a combined image. Alternatively, two receiver sensors, each at a different exposure time, are used to capture a plurality of images. The first and second images are then combined by extracting decodable portions of the code mask from each image to generate a combined image. Depth information for the scene may then be ascertained based on the combined image and using the code mask.

公开(公告)号：US20140132721A1

公开(公告)日：2014-05-15

申请号：US13723873

申请日：2012-12-21

Applicant: QUALCOMM INCORPORATED

Inventor： Judit Martinez Bauza ,  Kalin M. Atanassov ,  Sergiu R. Goma

IPC: H04N5/265 ,  H04N13/02

CPC classification number: H04N13/207 ,  G01B11/25 ,  G01B11/2513 ,  G06T5/50 ,  G06T7/521 ,  G06T2207/20221

Abstract: A receiver sensor captures a plurality of images, at two or more (different) exposure times, of a scene onto which a code mask is projected. The two or more of the plurality of images are combined by extracting decodable portions of the code mask from each image to generate a combined image. Alternatively, two receiver sensors, each at a different exposure time, are used to capture a plurality of images. The first and second images are then combined by extracting decodable portions of the code mask from each image to generate a combined image. Depth information for the scene may then be ascertained based on the combined image and using the code mask.

Abstract translation: 接收器传感器在两个或多个（不同的）曝光时间捕获多个图像，其中投影有码屏蔽的场景。 通过从每个图像提取代码掩码的可解码部分来组合多个图像中的两个或更多个以生成组合图像。 或者，两个接收器传感器（每个处于不同的曝光时间）用于捕获多个图像。 然后通过从每个图像提取代码掩码的可解码部分来组合第一和第二图像以生成组合图像。 然后可以基于组合图像并使用代码掩码来确定场景的深度信息。

公开(公告)号：US20140132722A1

公开(公告)日：2014-05-15

申请号：US13723891

申请日：2012-12-21

Applicant: QUALCOMM INCORPORATED

Inventor： Judit Martinez Bauza ,  Kalin M. Atanassov ,  Sergiu R. Goma

IPC: H04N13/02

CPC classification number: H04N13/207 ,  G01B11/25 ,  G01B11/2513 ,  G06T5/50 ,  G06T7/521 ,  G06T2207/20221

Abstract: A method and device is provided that compensates for different reflectivity/absorption coefficients of objects in a scene/object when performing active depth sensing using structured light. A receiver sensor captures an image of a scene onto which a code mask is projected. One or more parameters are ascertained from the captured image. Then a light source power for a projecting light source is dynamically adjusted according to the one or more parameters to improve decoding of the code mask in a subsequently captured image. Depth information for the scene may then be ascertained based on the captured image based on the code mask. In one example, the light source power is fixed at a particular illumination while an exposure time for the receiver sensor is adjusted. In another example, an exposure time for the receiver sensor is maintained/kept at a fixed value while the light source power is adjusted.

Abstract translation: 提供一种方法和装置，其在使用结构化光进行主动深度感测时补偿场景/物体中物体的不同反射率/吸收系数。 接收器传感器捕获投影有代码掩码的场景的图像。 从捕获的图像确定一个或多个参数。 然后根据一个或多个参数动态地调整用于投影光源的光源功率，以改进随后捕获的图​​像中的码掩码的解码。 然后可以基于代码掩码基于捕获的图像来确定场景的深度信息。 在一个示例中，光源功率固定在特定照明下，同时调节接收器传感器的曝光时间。 在另一示例中，在调整光源功率的同时，将接收器传感器的曝光时间保持/保持在固定值。