Object detecting system and object detecting method

Abstract

The invention provides an object detecting system and an object detecting method. The object detecting system comprises a surrounding member, a reflection subassembly, a linear induction pick-up unit, a light source module and a data processing module, wherein the surrounding member is used for defining an indicating space and an indicating plane arranged in the indicating space in order to indicate a target position by an object and has a contrast relation with the object; the reflection subassembly is positioned at the edge of the indicating plane and arranged on the surrounding member; the light source module is coupled to the surrounding member and used for irradiating the indicating space; the linear induction pick-up unit is arranged on the corner periphery of the indicating plane and used for defining pick-up points and retrieving integrative image signals; and the data processing module is used for processing the integrative image signals and deciding the object information of the object positioned in the indicating space. By using an image energy analysis method, the object detecting system and the object detecting method can effectively reduce required subassemblies of the traditional optical touch-control system in order to achieve the purposes of reducing cost and simplifying structure.

Description

technical field [0001] The present invention relates to optical touch, in particular to an object detection system and an object detection method that achieve the effects of simplifying the structure and reducing the cost through the image energy analysis method. Background technique [0002] With the maturity of the touch system, devices with large size and multi-touch technology will become the mainstream in the future. At present, compared with other methods, such as resistive, capacitive, ultrasonic or projected image, the optical touch system has the advantages of lower cost and easier implementation. [0003] US Patent No. US7460110 discloses a high-resolution optical touch system. in the previous case Figure 7 Among them, point P on the touch screen is a light source that radiates light to the surroundings, the upper and left sides of the touch screen are non-reflective backgrounds, and a 90° reflector needs to be set on the right side (see Figure 4 of the previous ...

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Problems solved by technology

[0004] However, according to figure 1 It can be seen that US Patent No. US7460110 still needs to adopt a sensing device composed of two line sensors (line sensors) or an area sensor (area sensor) to sense the camera unit on the upper layer ( figure 1 U) in U) produces images U1 and U2 or in the lower layer ( figure 1 L) in L) produces images L1 and L2, so that the structure of the optical touch system cannot be further simplified, resulting in an ineffective reduction of its production cost

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