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Intelligent positioning and calibration method

A calibration method, a technology of intelligent positioning, applied in the direction of instruments, electrical digital data processing, data processing input/output process, etc., can solve problems such as low efficiency and lack of flexibility

Inactive Publication Date: 2011-09-21
BEIJING MOLY TECH
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Problems solved by technology

One of the disadvantages of this method is that the user can only perform positioning calibration according to the number of positioning calibration points and procedures that have been set during the positioning calibration process, which lacks flexibility and low efficiency. When the speed requirement is high, it is impossible to select a small number of positioning points for fast positioning; the second disadvantage is that after the positioning calibration is completed according to a fixed program, if the positioning accuracy in some areas is not enough, further fine positioning calibration is required, but the existing method cannot meet this requirement

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Embodiment Construction

[0012] The following embodiments are further provided in conjunction with the contents of the present invention:

[0013] see figure 1 , a prototype system is developed based on the method of the present invention, the system includes: a main program module 100 , a two-point positioning module 200 and a multi-point positioning module 300 . The working process of the system is as follows: the first step, start the main program module 100 positioning calibration program; the second step, call the two-point positioning module 200, select two points on the upper left and lower right diagonal corners of the display area that needs positioning calibration to perform positioning , after the positioning is finished, exit the two-point positioning module 200 and enter the main program module 100; the third step, the main program module 100 prompts the user whether to perform further multi-point positioning calibration, if the user chooses to end, then exit the main program, if If the ...

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Abstract

The invention discloses an intelligent positioning and calibration method and relates to the technical field of positioning and calibration of interactive electronic white boards and large-sized touch screens. The method comprises the following steps of: 1, selecting two points on a clinodiagonal in a display region to be positioned and positioning at first, and directly terminating a positioning and calibration procedure after positioning; keeping finishing positioning and calibration of a plurality of other positioning points, namely displaying all the positioning points and target points on the overall display region, and terminating positioning at any time if an error is within a permitted range; if a partial region is still inaccurate in positioning or the partial region is needed to be calibrated precisely, starting a region precise calibration procedure and precisely calibrating the partial region; and finally, selecting the number of the positioned and calibrated positioning points. Compared with the conventional positioning and calibration method, the method has the characteristics of high efficiency, intelligence and accuracy; and the speed of positioning and calibration is increased and the efficiency of positioning and calibration is improved.

Description

technical field [0001] The invention relates to a positioning and calibration method, in particular to an intelligent and efficient positioning and calibration method, belonging to the technical field of positioning and calibration of interactive electronic whiteboards and large-size touch screens. Background technique [0002] With the increasing application of human-computer interaction products such as interactive electronic whiteboards and large-size touch screens, the use and operation of such products have attracted more and more attention. At present, such products require positioning calibration before normal use to ensure an accurate correspondence between the effective display area of ​​the product and the writable functional area of ​​the product. The existing positioning calibration method is to use 4 points, 9 points, 16 points, 25 points, etc. for direct positioning calibration. One of the disadvantages of this method is that the user can only perform position...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 吕磊张敬亮
Owner BEIJING MOLY TECH
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