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 the relationship between hands and eyes. Background technique [0002] The position input system is a kind of computer input device. In theory, any situation that requires interactive operation with the computer requires the input of position information. At present, the most commonly used position input devices are a mouse and a touch screen. Such devices require the user to keep in contact with the device during use, thus restricting the user's activity space. In situations where it is not convenient to restrict user activities, such as exhibitions and certain industrial occasions, it is inconvenient or even impossible to use a contact position input system. [0003] Replacing the existing contact input with non-contact position input will provide users with an unconstrained input experience, enhance ...

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 the visitors at the exhibition, they often break the requirement to be within a certain distance. Viewing the display from a distance), this input method is not intuitive 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) On, the input of position information is realized 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 techniques actually still require the user to touch the input device, so strictly speaking, they are not true non-contact position input systems.

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