Infrared precise multi-point touch platform

Abstract

The invention discloses an infrared precise multi-point touch platform, which comprises a hardware system part and a software system part, wherein the hardware system part comprises an infrared transmitting tube array, a touch screen, a camera, a computer and a projector; the software system part comprises a contact tracking module and a gesture recognition module; the contact tracking module comprises an image processing sub module, a contact profile extracting sub module and a contact tracking sub module; the gesture recognition module comprises a multi-point touch gesture analysis and definition sub module, a gesture recognition and judgment sub module and a gesture driving sub module. The touch platform disclosed by the invention can realize human-machine intelligent interaction by returning infrared variation caught by the special camera and then locating in the computer; on the aspect of hardware, the touch platform has advantages of high recognition precision, low cost, simple structure, convenience in updating and the like, and on the aspect of software, the touch platform is characterized by being concise and easy in understanding of program, easy to operate, easy to expand, strong in transplanting, strong in adaptability, etc. on the aspect of software; and the touch platform can guarantee smooth coordination between software and hardware systems, and is easy to implement.

Description

technical field [0001] The invention belongs to the technical field of infrared touch, and in particular relates to an infrared precise multi-touch platform. Background technique [0002] In terms of hardware, the infrared multi-touch system is an electronic device that uses the infrared matrix densely distributed in the X and Y directions to detect and locate human touch gestures. The infrared touch screen installs a circuit board frame in front of the display, and the circuit board arranges infrared emitting tubes and infrared receiving tubes on the four sides of the screen, forming a horizontal and vertical crossing infrared matrix one by one. When a finger touches the screen, it will block the two infrared rays passing through the position, so the coordinate position of the touch point on the screen can be judged. Any non-transparent object can change the infrared rays on the contact point to realize the touch screen operation. [0003] The infrared multi-touch system i...

AI Technical Summary

Problems solved by technology

[0008] With the continuous development and progress of science and technology, touch technology has also been continuously innovated and developed. Infrared touch screen technology has also experienced from single-point recognition, to two-point recognition, and then to the current multi-point recognition. However, there are currently There is no infrared precision multi-touch platform with high portability and high scalability that can meet the needs of users in terms of hardware, and is also easy to operate in terms of software.

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