Coordinate judging system and method

Abstract

The invention provides a coordinate judging system, which comprises an image capture module, a partition module, a judgment module and a conversion module, wherein the image capture module is used for capturing a plurality of images corresponding to a screen; the partition module is used for partitioning an overlapped image range of the plurality of images into (M*N) subranges, and M and N are all positive integers; the judgment module is used for judging a position of an indication point in an image; if the indication point is positioned in a subrange of the subranges, the indication point has an image coordinate relative to a relative origin in the subrange; and the conversion module converts the image coordinate to a screen coordinate according to a proportional parameter.

Description

technical field The present invention relates to a coordinate judging system and method, and in particular to a coordinate judging system and method for judging the screen coordinates of an indication point appearing on the screen. Background technique In recent years, due to the continuous improvement of image display technology, the current screen display panel can not only support touch input, but also input through remote infrared projection. Touch display panels are widely used in various electronic products, such as automatic teller machines, point-of-sale terminals, visitor guidance systems, or industrial control systems. For a general touch screen panel, a video camera or a camera can be used to capture an image including the screen area, and after completing the mapping between the image and the actual position on the screen, the detection of a single touch point on the panel can be realized. However, the image captured by a video camera or camera that includes t...

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Problems solved by technology

The invention provides a coordinate judging system and a coordinate judging method

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