Method and apparatus for hand-written input and gesture recognition of mobile apparatus

A mobile device, handwriting input technology, applied in the field of handwriting input and gesture recognition, can solve problems such as increased product cost and achieve cost-saving effect

Inactive Publication Date: 2006-12-20
VIMICRO CORP
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Problems solved by technology

[0006] It can be seen from the above description that the existing mobile phones with handwriting input and gesture recognition functions need to add additional special hardware devices, such as stylus, gesture control sensors, etc., which will inevitably increase the cost of the product

Method used

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  • Method and apparatus for hand-written input and gesture recognition of mobile apparatus
  • Method and apparatus for hand-written input and gesture recognition of mobile apparatus
  • Method and apparatus for hand-written input and gesture recognition of mobile apparatus

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Embodiment Construction

[0044] In order to make the object, technical solution and beneficial effects of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0045] In the method and device for handwriting input and gesture recognition of mobile devices of the present invention, first, images are acquired by the camera device of the mobile device, and by comparing the adjacent image frames acquired, the values ​​of all adjacent image frames in a complete input process are calculated. Relative motion vectors, and connect all the obtained relative motion vectors end to end to obtain the precise plane motion trajectory of the camera, and then match the precise plane motion trajectory with the stroke or gesture trajectory model established in advance, and when the matching is successful, Output the matching results to the display of the mobile device.

[0046]The mobile device of the present inve...

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Abstract

The invention relates to a hand-writing and gesture recognize method used in mobile device, wherein via comparing the nearby two image frames obtained by camera device, calculating out the relative motion vector of two image frames; and connecting the relative motion vectors of all nearby image frames in one whole input process, end-to-end, to obtain the accurate plane motion track of cam; using said motion track to match the built stroke or gesture track model; when the match is successful, the match result is output to the display screen of mobile device. The invention also discloses a relative device, without adding special hardware on the mobile device, to save the cost.

Description

technical field [0001] The invention relates to handwriting input and gesture recognition technology, in particular to a method and device for handwriting input and gesture recognition of mobile equipment. Background technique [0002] Mobile devices, such as mobile phones, mainly have three technical methods for Chinese input in the domestic market, namely pinyin input, stroke input and handwriting input. The survey conducted on the scope of use shows that the proportion of pinyin input tops the list at 79.7%, and the proportion of stroke input and handwriting input is 15.7% and 4.6% respectively. However, with the growth of SMS business, the problem of "thumb fatigue" caused by pinyin input and stroke input is gradually exposed. At this time, the handwriting input technology is becoming more and more mature, making it the most favored by users after the miniaturization of mobile devices. Input. A number of survey results show that nearly 80% of the respondents regard mob...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/23H04M1/247H04Q7/32G06K9/00G06K9/18G06K9/62G06F3/033G06F3/0354G06V30/224H04M1/72439
Inventor 王浩夏煜
Owner VIMICRO CORP
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