CALIBRATION FOR TOUCH DETECTION ON PROJECTED DISPLAY SURFACES

摘要

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.

主权项

1. An apparatus for projected display surface calibration, comprising:
one or more surface emitters; one or more sensors to capture visible image data, depth data, and infrared data associated with an infrared image; a point calibrator to detect calibration points based on a projected predefined pattern from the visible image data; a modeler to generate a surface depth model by fitting a surface plane to the depth data; and a mapper to map:
the detected calibration points to surface depth coordinates of the surface depth model; andthe infrared image to the surface depth model based on preconfigured image correlations.