Virtual touch interaction method and virtual touch interaction device

Abstract

Disclosed are a virtual touch interaction method and a virtual touch interaction device for projection screens. The method includes: tracking the position of the user's limb moving in the projection area in front of the projection screen; determining whether the user's limb enters the interactive area based on the position of the user's limb; and projecting a cursor onto the user's limb in response to the user's limb entering the interactive area; And changing the shape of the cursor according to the action of the user's limbs on the projection screen. By using the above method and device, the user's touch operation on the projection screen can be detected with high precision, and a clear feedback can be given to the user without disturbing the images displayed on the projection screen.

Description

technical field [0001] The present invention relates to user interaction technology in the field of computer and digital image processing, and more particularly to a virtual touch interaction method and virtual processing interaction device for projection screens. Background technique [0002] Currently, touch control technology has been widely applied to various devices such as handheld devices and personal computers for human-computer interaction. This technology uses a touch screen with touch sensors that the user can interact with the device by touching it to control the device to perform various operations. Touch control technology can enable users to operate devices conveniently and effectively, thereby obtaining a good user experience. [0003] In recent years, a virtual touch interaction technology has been proposed, which aims to perform an interaction similar to traditional touch interaction on a screen without a touch sensor (ie, virtual touch interaction). For ...

AI Technical Summary

Problems solved by technology

For example, touch devices designed by Apple use the following human-computer interaction interface principles: (1) feedback, that is, respond to user actions, and make users feel sure that their request is being processed; (3) metaphor, that is, when the objects and operations in the application are mapped from the real world, users can quickly grasp how to use the application; (4) overall beauty, that is, the appearance of the application Perfectly combined with functions; (5) Consistency, which allows users to extend the knowledge and skills about one application to other applications. However, the current virtual touch interaction technology cannot follow the above principles well

[0005] In addition, in the existing virtual touch interaction system, in order to be able to detect the user's touch action, it is often necessary to project a larger-sized and easily identifiable pattern on the projection screen, and this pattern is superimposed on the picture displayed on the projection screen. On the other hand, not only the screen itself becomes ugly, but also the content on the screen may be blocked, which leads to poor user experience

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