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Light source identification device, light source identification method and optical tracking device

A technology of optical tracking and identification methods, which is applied in the field of light source identification devices, can solve problems affecting the accuracy of tracking objects 101 of optical tracking devices, and achieve the effect of simple structure

Active Publication Date: 2016-08-31
PIXART IMAGING INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

by figure 1 For example, the optical tracking device is used to track the object 101, and the object 101 can emit an infrared light. However, the image captured by the optical tracking device may contain other noise sources such as light sources 103, 105, etc., which may be environmental Light, fluorescent lamps and other light sources
These light sources usually contain infrared light and other components of light, which may affect the accuracy of the optical tracking device to track the object 101

Method used

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  • Light source identification device, light source identification method and optical tracking device
  • Light source identification device, light source identification method and optical tracking device
  • Light source identification device, light source identification method and optical tracking device

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Embodiment Construction

[0025] Certain terms are used in the specification and following claims to refer to particular elements. It should be understood by those skilled in the art that hardware manufacturers may use different terms to refer to the same element. The description and the preceding claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. The term "comprising" mentioned throughout the specification and the preceding claims is an open-ended term, so it should be interpreted as "including but not limited to".

[0026] figure 2 A schematic structural diagram of an optical tracking device 200 according to an embodiment of the present invention is shown. The optical tracking device 200 can be used to track an object that can provide light with a specific frequency, such as figure 1 Object 101 in . It should be noted that in the subsequent embodiments, infrared light is used to represent...

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Abstract

The invention discloses a light source identification device capable of being used for identifying whether a light source is a light source of a specific type or not. The light source identification device comprises a light filtering element and a judging unit, wherein the light filtering element comprises a first zone and a second zone, the first zone only enables light with specific frequency to pass through, while the second zone enables the light with the specific frequency and light with other frequencies to pass through; and the judging unit is used for judging whether the light is the light source in the specific type or not according to the quantity of light formed in the first zone and the second zone of the light source.

Description

technical field [0001] The present invention relates to a light source identification device, a light source identification method and an optical tracking device, in particular to a light source identification device and a light source identification method capable of identifying a specific type of light source, and an optical tracking device capable of tracking objects according to the result of the type identification of the light source. Background technique [0002] figure 1 A schematic diagram of a noise light source interfering with an object tracked by an optical tracking device in the prior art is shown. In the prior art, an optical tracking device captures at least one image of an object to be tracked to calculate its position or movement coordinates. The object to be tracked itself can be regarded as a light source that emits light of a specific frequency. by figure 1 For example, the optical tracking device is used to track the object 101, and the object 101 can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/00G01C11/00
Inventor 梁家钧黄昭荐黄启扬程瀚平
Owner PIXART IMAGING INC
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