公开(公告)号：US09609242B2

公开(公告)日：2017-03-28

申请号：US14750229

申请日：2015-06-25

Applicant: Intel Corporation

Inventor： Kip C. Killpack ,  David R. Holman ,  Abhay A. Dharmadhikari ,  Brandon Gavino ,  Vinay K. Nooji ,  Katie R. Hauser ,  Lauren M. Lieu

IPC: G06T7/00 ,  H04N5/357 ,  G06T5/00

CPC classification number: H04N5/357 ,  G01B11/002 ,  G01B11/24 ,  G06T5/006 ,  G06T7/50 ,  G06T2200/04 ,  G06T2207/10012 ,  G06T2207/10048

Abstract: A depth-sensing camera may be used to locate objects on a planar surface. A planar fit calculation is used to model the surface. One problem with the best planar fit calculation is that it is not robust over time. Firstly, this is because the depth data has a non-linear curve near its extremities because of camera lens distortion. Secondly, as the depth-sensing camera warms up and its thermal activity changes, the depth data drifts and the initial plane fit is no longer valid. The position and the amount of curvature and drift may be different for cameras of the same make and model in some cases. In accordance with some embodiments, algorithms may be used to detect and correct for these types of errors to support more robust plane fitting in real time.

公开(公告)号：US20170336918A1

公开(公告)日：2017-11-23

申请号：US15161279

申请日：2016-05-22

Applicant: Intel Corporation

Inventor： David R. Holman ,  Kip C. Killpack ,  Brandon Gavino ,  Vinay K. Nooji ,  Abhay A. Dharmadhikari ,  Vijay M. Rao

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/0421 ,  G06F3/0418 ,  G06F3/0425

Abstract: Devices for sensing touch on a surface using a minimum depth-value surface characterization, including associated methods, are disclosed and described.

公开(公告)号：US20160349918A1

公开(公告)日：2016-12-01

申请号：US14726227

申请日：2015-05-29

Applicant: INTEL CORPORATION

Inventor： Kedar A. Dongre ,  Vinay K. Nooji ,  Brandon Gavino ,  David R. Holman

IPC: G06F3/041 ,  G06F3/042

CPC classification number: G06F3/0418 ,  G06F3/0425

Abstract: Techniques for calibrating touch detection devices are described herein. A method for calibrating touch detection may include detecting, via a processor, predefined calibration points from a projected predefined pattern based on visible image sensor data. The method may also include generating, via the processor, a surface depth model by fitting a surface plane to depth sensor data. The method may further include mapping, via the processor, the detected calibration points to surface depth coordinates. The method may also further include mapping, via the processor, an infrared image from infrared (IR) sensor data to the surface depth model using preconfigured image correlations.

Abstract translation: 本文描述了用于校准触摸检测装置的技术。 用于校准触摸检测的方法可以包括经由处理器基于可见图像传感器数据从投影的预定模式检测预定义的校准点。 该方法还可以包括通过将表面平面拟合到深度传感器数据来经由处理器生成表面深度模型。 该方法还可以包括经由处理器将检测到的校准点映射到表面深度坐标。 该方法还可以包括：使用预配置的图像相关性，经由处理器将红外图像从红外（IR）传感器数据映射到表面深度模型。