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Projection system with interactive function

A projection system and functional technology, applied in the field of projection systems, can solve problems such as projection systems that have not yet been seen and cannot fully satisfy users' real-time interaction, and achieve real-time interaction, convenient application, and low-cost effects

Active Publication Date: 2010-11-17
深圳清研紫光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing projection devices only use a mouse, keyboard or remote controller to interact with the projection device, which cannot fully meet the needs of users for real-time interaction.
At present, the technology of interacting with electronic equipment directly on the display area is also widely used, such as touch screen mobile phones, attendance systems, computers, and even large-screen TVs, etc. However, there is no projection system combined with projection devices for real-time interaction

Method used

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  • Projection system with interactive function
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  • Projection system with interactive function

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0035] like figure 1 , 2 A projection system with interactive functions is shown, including a projection device 5 for projecting images to a projection area 1 , and an image acquisition module including a mirror 3 , a camera 4 and a pen 2 dedicated for interaction. The projection device 5 is a front projector.

[0036] The length of the reflector 3 is at least equal to the length of one side of the projection area, and the width of the reflector 3 is in the same order as the length of the interactive pen 2 . To ensure that the imaging of the interactive pen 2 by the reflector 3 can be taken by the camera 4, the specific value is related to the resolution of the camera 4. The reflector 3 is placed along the four sides of the projection area 1, that is, the frame of the displayed image, and satisfies the following geometric relationship:

[0037]

[0038] Wherein: φ1 is the angle between the mirror 3 and the plane of the projection area 1; φ2 is the angle between the plane...

specific Embodiment approach 2

[0043] like figure 1 , 3 The shown projection system with interactive functions is basically the same in composition as the first embodiment, except that the projection device 5 is a rear-projection projector, and the interactive pen 2 is replaced by a human hand. The interactive function can also be realized by using human hands to directly draw and write on the projection area.

specific Embodiment approach 3

[0044] like figure 1 , 4 The shown projection system with interactive function is basically the same in composition as the first embodiment, the difference is that only the interactive pen 2 is replaced by an adult's hand. The interactive function can also be realized by using human hands to directly draw and write on the projection area.

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Abstract

The invention discloses a projection system with interactive function. The projection system comprises a projection device for projecting an image to a projection region, and is characterized in that the projection system also includes an image acquisition module including reflectors, a camera and a pen for interaction, wherein the length of the reflector is at least equal to the edge length of the projection region, and the width has the same magnitude as the length of the pen for interaction; the reflectors are arranged along four edges of the projection region according to set geometrical relationship; and an image processing circuit is arranged between the image acquisition mould and the projection device and includes a central processing unit, a projection image processing module, aninteractive data processing module and an image acquisition and analysis module. The interaction system integrated with the projection device and the reflector-type photoelectric input interaction device can lower the cost and achieve rapid and real-time interaction in large display area. The projection image can be annotated or operated to provide great convenience for users, and can widen the novel application field of the projection technology.

Description

technical field [0001] The present invention relates to a projection or viewing device or equipment with an external screen, in particular to a projection system with interactive functions. Background technique [0002] The projection device is small in size, large in image size, and widely used. As the user's familiarity with the projection device increases, the user needs to directly perform real-time interactive operations on the projection device and the projected image, such as correcting and marking the displayed text, and moving and modifying the displayed image. However, the existing projection device only uses a mouse, a keyboard or a remote controller to interact with the projection device, which cannot fully meet the needs of users for real-time interaction. At present, the technology of interacting with electronic equipment directly on the display area is also widely used, such as touch-screen mobile phones, attendance systems, computers, and even large-screen T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B17/54G03B21/28G06F3/033G06F3/042G06F3/048G06F3/0354G06F3/0488
Inventor 马建设张松周倩程雪岷郭洪峰刘敏霞郭华林贺巍巍毛乐山林喜荣
Owner 深圳清研紫光科技有限公司
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