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Determination method and determination devices of user finger position information, projector and projection system

A technology of position information and determination method, which is applied in the field of projectors, can solve problems such as time-consuming, user experience degradation, delay, etc., to achieve the effect of solving delay problems and improving experience

Active Publication Date: 2018-07-06
WEIFANG GOERTEK ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, after the depth-of-field image is generated by the depth-of-field module, the system needs to process the depth-of-field image to obtain the position information of the user's finger. Timely confirmation of the user's click location information during face-to-face, causing a delay problem and reducing the user's experience

Method used

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  • Determination method and determination devices of user finger position information, projector and projection system
  • Determination method and determination devices of user finger position information, projector and projection system
  • Determination method and determination devices of user finger position information, projector and projection system

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Embodiment Construction

[0047] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0048] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0049]Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0050] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have diff...

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Abstract

The invention discloses a determination method and determination devices of user finger position information, a projector and a projection system. The method includes: processing a first depth-of-field image and a background image to generate a first depth image; judging, according to a first depth threshold value range, whether an image region containing a finger is detected from the first depthimage, and obtaining a first judgment result; when the first judgment result is no, judging, according to a second depth threshold value range, whether an image region containing the finger is detected from the first depth image, and obtaining a second judgment result; when the second judgment result is yes, utilizing a second depth-of-field image and the background image to generate a second depth image; judging, according to the first depth threshold value range, whether an image region containing the finger is detected from the second depth image, and obtaining a third judgment result; andwhen the third judgment result is no, utilizing the image region, which is detected from the first depth image and contains the finger, to determine the user finger position information.

Description

technical field [0001] The present invention relates to the technical field of projectors, and more specifically, to a method and device for determining position information of a finger of a user, a projector, and a projection system. Background technique [0002] A projector is a device that can project images or videos onto a screen, and can be connected to a computer, VCD, DVD, game console, DV, etc. through different interfaces to play corresponding video signals. At present, interactive projectors have become a development trend. [0003] The interactive projector includes a projection module and a depth of field module. The projection module is used to project images or videos onto flat objects. see figure 1 , the projection module is a projection lamp, the projection lamp is installed on the projection bracket, and the projection lamp can cast a projection area. The projection can be a game interface, an online shopping interface or a restaurant menu, and the user...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042G03B21/00H04N9/31
Inventor 陈维亮李加云
Owner WEIFANG GOERTEK ELECTRONICS CO LTD