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Assistant-type three-dimensional space positioning device based on multiple PSD sensors and application

A three-dimensional space, space positioning technology, applied in the field of three-dimensional tracking and positioning of infrared targets, to achieve the effect of high positioning accuracy and efficiency

Inactive Publication Date: 2017-07-04
NANJING UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to solve the human eye tracking problem in the existing naked-eye stereoscopic display technology, and provide an embedded, low-cost, high-stability auxiliary human eye three-dimensional space for the naked-eye stereoscopic display to realize a full range of stereoscopic display effects. Positioning device and method

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  • Assistant-type three-dimensional space positioning device based on multiple PSD sensors and application
  • Assistant-type three-dimensional space positioning device based on multiple PSD sensors and application

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Embodiment Construction

[0021] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention. The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention.

[0022] figure 1 The shown multi-PSD-based auxiliary spatial positioning device mainly includes an infrared transmitter and a signal receiving and processing terminal. The PSD sensor refers to a Position Sensitive Detector, that is: a position sensitive detector; this device requires at least two two-dimensional PSD sensors; the infrared transmitter battery and...

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Abstract

An assistant-type three-dimensional space positioning device based on multiple PSD sensors includes a signal receiving and processing terminal and a portable infrared ray emission terminal. The signal receiving and processing terminal employs two or more two-dimensional PSD sensors, which are arranged and fixed according to known distance relationship. A passive positioning method is employed to receive infrared light emitted by the portable infrared ray emission terminal. On the basis of positions of light spots formed by an infrared light emitter on the PSD sensors, spatial positions of the infrared light emitting points are calculated. A portable infrared ray emitter is installed on and fixed on an object requiring positioning, so that indirect three-dimensional space positioning to the object is achieved. In the assistant-type three-dimensional space positioning device, according to position signals, which are collected by the multiple PSD sensors, of the infrared ray emitter, the position of the emitter in a three-dimensional space can be calculated accurately. The device needs two or more two-dimensional PSD sensors.

Description

technical field [0001] The invention relates to the field of three-dimensional tracking and positioning of infrared targets. More precisely, the invention relates to an auxiliary three-dimensional space positioning device and application method based on multiple PSD sensors. Background technique [0002] In the naked-eye stereoscopic display, a full range of free stereoscopic display can be realized by realizing the tracking of the human eyes, but now the CCD image sensor is mostly used to collect image signals for human eye tracking, and the human eye tracking is realized through computer software image processing. This method often fails to track or track inaccurately in occasions with low light intensity and complex background environment. And only the two-dimensional direction coordinates of the human eye can be obtained. Through the spatial positioning device based on multiple PSD sensors, the PSD signal acquisition and processing part is installed on the naked-eye ste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/00
CPCG01C21/00
Inventor 王元庆葛雷雨钱林杰黄挺
Owner NANJING UNIV
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