Image sensing module and optical sensing module

Abstract

The invention discloses an image sensing module which is used for detecting an object and an image of the object in a reflection mirror through a plurality of first filtering units with first light transmittance frequency spectrums and a plurality of second filtering units with second light transmittance frequency spectrums by using an image sensor so as to generate a first image. The reflection mirror is provided with a filtering module actually with a first light transmittance frequency spectrum. The first image comprises a plurality of pixels, and each pixel comprises first subdata generated through sensing light rays of the first filtering units and second subdata generated through sensing rays of the second filtering units. The image sensing module judges a real image corresponding to the object and a virtual image corresponding to the object in the reflection mirror from the first image according to the first subdata and the second subdata of the plurality of pixels by using a sensing controller.

Description

technical field [0001] The present invention relates to an image sensing module, more specifically, relates to an image sensing module capable of judging real images and virtual images from acquired images. Background technique [0002] figure 1 It is a schematic diagram of an optical sensing system 100 illustrating the background art. The optical sensing system 100 is used to detect the position of an object 102 . The optical sensing system 100 includes a sensing area 116 , a mirror 104 , an image sensor 110 , and a processing circuit 112 . Reflective elements 106 and 108 are disposed on sides of the sensing area 116 . Both the reflective elements 106 and 108 are used to reflect light to the sensing area 116 . Mirror 104 is used to create a mirror image of sensing area 116 . The reflector 104 can be implemented by a plane reflector, and the mirror surface 118 of the reflector 104 faces the sensing area 116 . The image sensor 110 is disposed at a corner of the sensing ...

AI Technical Summary

Problems solved by technology

Depend on Figure 6A and Figure 6B It can be seen that Figure 4 The image 400 acquired by the image sensor 110 and Figure 5 The image 500 acquired by the image sensor 110 of the above is similar, so the processing circuit 112 cannot judge whether the positions of the two objects 102 and 103 belong to the first case or the second case, that is, the processing circuit 112 cannot judge the dark lines 404, 406 , 504 and 506 are the dark lines caused by the object, or the dark lines caused by the mirror image of the object

In other words, the processing circuit 112 cannot determine the real images corresponding to the objects 102 and 103 and the virtual images corresponding to the objects 102 and 103 in the mirror 104 from the image 400 (or 500 ).

As a result, the processing circuit 112 cannot correctly calculate the positions of the objects 102 and 103

Therefore, when the optical sensing system 100 is applied to multi-touch, the processing circuit 112 cannot correctly calculate the position of the object

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