System and method of contactless position input by hand and eye relation guiding

Abstract

The invention relates to a discontact location input system and method guided by hand and eye. It includes two CCD video cameras, a large scale display terminal, a computer installed plural image acquisition card. The system uses platform labeling module to label video camera parameter. The location input method includes following steps: full automation video camera demarcating, hand and eye location gathering, and demarcating target point solving. The invention is based on computer vision technology, and has the advantages of visual, accurate and real time.

Description

technical field [0001] The invention relates to a three-dimensional vision measurement system and method, in particular to a non-contact position input system and method guided by hand-eye relationship. Background technique [0002] The position input system is a kind of computer input device. Theoretically speaking, any occasion that requires interactive operation with the computer requires the input of position information. At present, the most commonly used position input devices are mouse and touch screen, which require the user to keep in touch with the device during use, thus restricting the user's room for movement. It is inconvenient or even impossible to use a contact position input system in situations where it is not convenient to restrict user activities, such as exhibitions and certain industrial situations. [0003] Replacing the existing contact input method with a non-contact position input method will provide users with an unrestricted input experience, enh...

AI Technical Summary

Problems solved by technology

However, there are relatively few applications of this type of technology at present, and only some attempts mainly focus on two types: one is to transform the existing mouse, and replace the connecting cable between the mouse and the host computer with an infrared or radio frequency signal to make a hand-held mouse. position input device

This type of technology gets rid of the shackles of the cable to the user, but because the input of the position information needs to be realized by rolling the mouse ball, for users who are far away from the indicated target (such as visitors at the exhibition, they are often required to move within a certain distance. This input method is unintuitive and imprecise; another type of technology uses a patch-type position sensor, placing several sensors on certain parts of the user's body (such as fingers) , to realize the input of position information by sensing the specific movement of the human body

This approach allows for intuitive position input, but application flexibility is compromised by requiring the user to wear the sensor

These two types of technologies actually still require the user to touch the input device, so strictly speaking, they are not true contactless position input systems

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