Camera shooting type touch control method and device
A camera device and touch control technology, applied in the field of camera-type touch control and camera-type touch control device, can solve the problems of large calculation amount, user discomfort, and touch object positioning delay, etc., so as to improve the speed and reduce the calculation amount. Effect
Active Publication Date: 2014-12-24
HUAWEI TEHCHNOLOGIES CO LTD
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[0005]However, although the above camera touch technology can accurately locate each touch object, since the initial coordinates of the touch points need to be calculated twice, the calculation If the amount is large, it may cause a certain delay in the positioning of the touching object, making the user feel uncomfortable
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[0143] As a preferred embodiment of the camera-type touch control device of the present invention, the camera-type touch control device further includes:
[0144] An area dividing module 31, configured to divide the image of the touch control area captured by each camera device into at least two sub-area images in a direction parallel to the display device, and divide the images according to the division of the sub-area images way, and the effective coordinate range of the touch control area, the touch control area is divided into at least two shooting sub-areas with respect to each camera device;
[0145] The judging module 32 is configured to judge whether each of the sub-regions corresponding to each of the sub-region images has a common overlapping area when the touch object image appears in at least three of the sub-region images. Whether the combination of area images is valid;
[0146] A classification module 33, configured to classify the touch object as a valid touch...
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The invention provides a camera shooting type touch control method and device. The method comprises the following steps: firstly computing the first initial coordinates of a touch object and then computing the theoretical value of the touch positioning information of the first initial coordinates which are shot by a third camera device according to the first initial coordinates and the coordinate of the third camera device; and then comparing the theoretical value of the touch positioning information with the actual value obtained through shooting and screening the first initial coordinates, thus directly determining the coordinate of the touch object according to the coordinate obtained after screening. The method and the device have the following beneficial effects that: the initial coordinates are unnecessary to compute twice; the computation amount for the coordinate of the touch object and positioning time delay are reduced and the speed of camera shooting type touch positioning is increased.
Description
technical field [0001] The present invention relates to the technical field of touch control, in particular to a camera-type touch control method and a camera-type touch control device. Background technique [0002] As a new type of computer input technology, touch control technology makes human-computer interaction more intuitive. Because it brings great convenience to users, in addition to being applied to personal portable information products, it has been applied in information appliances, public information, Electronic games, office automation equipment and other fields. [0003] Common touch control technologies include capacitive touch technology, resistive touch technology, infrared touch technology or camera touch technology, among which camera touch technology has the advantages of simple equipment and easy installation, and has become an increasingly popular touch control technology. important part. [0004] The principle of a camera-type touch technology in the...
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IPC IPC(8): G06F3/042
Inventor 曾昭兴
Owner HUAWEI TEHCHNOLOGIES CO LTD