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Projector virtual touch tracking method, device and system based on visible light

A technology of virtual touch and visible light, which is applied in the field of projection display, can solve problems such as ineffective operation, and achieve the effects of high portability, good stability and flexibility, and low price

Pending Publication Date: 2021-04-23
CHENGDU XGIMI TECH CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

Since infrared light cannot be seen by human eyes, when the infrared touch peripheral device touches the corresponding area, if the infrared touch peripheral device does not emit infrared light, the system will judge that no touch has occurred, and the user does not know the infrared touch Whether the peripheral device emits infrared light, it will continue to use the infrared touch peripheral device for operation, resulting in invalid user operations during this period; and its camera must be an infrared camera that can capture infrared light

Method used

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  • Projector virtual touch tracking method, device and system based on visible light
  • Projector virtual touch tracking method, device and system based on visible light
  • Projector virtual touch tracking method, device and system based on visible light

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Embodiment Construction

[0056]In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. In addition, although the disclosures in this application are introduced according to one or several exemplary examples, it should be understood that each aspect of thes...

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Abstract

The invention discloses a projector virtual touch tracking method, device and system based on visible light, and relates to the technical field of projection display. The method comprises the following steps: acquiring an image acquired by a camera, wherein the image comprises a projection picture and a visible light spot emitted by a touch peripheral; generating a touch signal according to an image; and realizing virtual touch and / or tracking according to the touch signal. According to the invention, virtual touch of the projector is realized based on a method of combining a portable touch peripheral and a specific color extraction algorithm, the price is low, the portability is high, and the stability and the flexibility are relatively good; a user can visually know whether the touch peripheral emits effective light or not, invalid operation can be effectively avoided, and user experience is improved; by means of the method, multiple touch peripherals can be triggered at the same time, and a trajectory tracking function is achieved.

Description

technical field [0001] The present application relates to the technical field of projection display, in particular to a method, device and system for virtual touch tracking of a projector based on visible light. Background technique [0002] With the development of projection display technology, the application scenarios of projectors are becoming more and more extensive, and the virtual touch technology of projectors has also been developed rapidly. Most of the currently existing virtual touch technologies for projectors require professional touch auxiliary peripherals. Traditional virtual touch is mostly realized with the help of touch film or laser scanning devices pre-installed on the wall, which is not only expensive, but also difficult to install. The transfer is more complex and less flexible. In addition, there are also some methods to realize the virtual touch of the projector through infrared light, that is, to use the infrared touch peripheral to emit infrared li...

Claims

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Application Information

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IPC IPC(8): H04N9/31G06F3/042
CPCH04N9/3141H04N9/3179G06F3/0425
Inventor 赖俊霖王鑫
Owner CHENGDU XGIMI TECH CO LTD
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