Image processing device and method for generating coordinate calibration point

Abstract

The invention provides an image processing device and an image processing method for generating a coordinate calibration point. The image processing device comprises a substraction module, an edge detection module and an intersection generation module, wherein the substraction module substracts a first image by a second image to generate a first substraction image and substracts the first image by a third image to generate a second substraction image; the edge detection module performs an edge detection procedure aiming at the first substraction image to generate a first edge image and also performs the edge detection procedure aiming at the second image to generate a second edge image, wherein the first edge image includes a first edge, and the second edge image includes a second edge; the intersection generation module generates an intersection pixel according to the first edge and the second edge, and the intersection pixel is the coordinate calibration point which corresponds to the first edge and the second edge.

Description

technical field [0001] The present invention relates to an image processing device, in particular to an image processing device for generating coordinate calibration points. Background technique [0002] In recent years, various input technologies that hope to bring convenience to users, such as touch panels, voice-activated input, and gesture capture input, etc., have gradually attracted the attention of the market and started to develop rapidly. In many applications related to input devices, image processing technology is often an important link. [0003] For example, using an image capture device to capture an image corresponding to a user's gesture, and then using image processing technology and gesture recognition technology, the function of performing input by gesture can be achieved. On the other hand, if the user projects light onto the screen to form a light spot, after the image corresponding to the screen is captured by the image capture device, the position of t...

AI Technical Summary

Problems solved by technology

Although both cases can use the corresponding correction equations to correct the image, but if you want to correct a certain block in the image, you need to use more complex and cumbersome correction equations to successfully complete the coordinates The calibration work, so that the control point coordinates in the image can be correctly mapped to the point coordinates on the actual screen, not only requires a lot of computing resources, but also is quite time-consuming and inconvenient

Images