Beijing Irtouch Systems Co., Ltd

Koga Touch Co., Ltd

Yuhui Wang

Zhenyu Wu

Jianjun Liu

Xinlin Ye

Xinbin Liu

Haibing Zhang

Haidong Hao

Haibo Tang

The present disclosure provides a method, apparatus, optical touch device, and storage medium for optical touch image optimization, including turning on an infrared light source based on a preset second interval, wherein the infrared light source is configured to illuminate a touch object of the optical touch device; capturing, at each time the infrared light source is turned on, a first optical touch image and a second optical touch image based on a preset first interval, wherein the first optical touch image is the image captured when the infrared light source is turned on, and the second optical touch image is the image captured when the infrared light source is turned off; and performing subtraction between the first optical touch image and the second optical touch image to obtain an optimized optical touch image, wherein the optimized optical touch image includes the touch object.

Method, apparatus, optical touch device, and storage medium for optical touch image optimization

The present invention relates to a touch positioning method, a touch screen, a touch system and a display. The touch positioning method comprises: processing image collected by the first camera to obtain first image data, and processing image collected by the second camera to obtain second image data, wherein the first image data comprise one touch image block, and the second image data comprise at least two touch image blocks; processing the second image data to obtain third image data, the third image data comprising image blocks of two suspected touch objects; obtaining a distance between the two suspected touch objects according to the first image data and the third image data; and obtaining location information of an actual touch object according to the first image data, the third image data and the distance between the two suspected touch objects. The invention may eliminate misjudgment caused by 'crack dot' (FIG.).

Touch positioning method, touch screen, touch system, and display

A touch screen, a touch system and a method for positioning a touch object in a touch system are disclosed. The touch screen comprises an infrared pair tube array, wherein said infrared pair tube array is disposed on an edge of said touch screen. By introducing the infrared pair tube array, the touch screen of the present invention eliminates invalid touch areas in the existing touch screen and avoids false touch points in multipoint positioning.

Touch screen, touch system and method for positioning a touch object in touch system

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Beijing, China

Yuhui Wang