Projection interaction method based on pure machine vision positioning
A technology of projection interaction and machine vision, which is applied to the components of color TVs, image reproducers of projection devices, instruments, etc., can solve the problems of high construction cost, interference, and immovability of interactive systems, and achieves strong mobility. , good stability, low equipment cost
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[0049] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0050] Such as figure 1 A projection interaction method based on pure machine vision positioning is shown, including the following steps:
[0051] S1. Perform grayscale processing on the source image collected by the visual sensor, and locate the boundary and four vertices of the projection area in the image, specifically including the following steps:
[0052] 1.1. The present invention has no special requirements for the visual sensor, and a conventional usb camera is used to meet the requirements. In this embodiment, a HID TTQI camera is used, and an opencv image processing library is used to obtain an RGB source image.
[0053] Since the human eye has the highest sensitivity to green and the lowest sensitivity to blue, the source image is grayscaled according to the following formula:
[0054] Gray=R*0.299+G*0.587+B*0.114
[0055] Among them, R, G, and...
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