New! View global litigation for patent families

CN101923418A - Object sensing system and method - Google Patents

Object sensing system and method Download PDF

Info

Publication number
CN101923418A
CN101923418A CN 201010143684 CN201010143684A CN101923418A CN 101923418 A CN101923418 A CN 101923418A CN 201010143684 CN201010143684 CN 201010143684 CN 201010143684 A CN201010143684 A CN 201010143684A CN 101923418 A CN101923418 A CN 101923418A
Authority
CN
Grant status
Application
Patent type
Prior art keywords
object
sensing
images
indicated
captured
Prior art date
Application number
CN 201010143684
Other languages
Chinese (zh)
Other versions
CN101923418B (en )
Inventor
唐建兴
廖昱维
蔡华骏
Original Assignee
苏州佳世达电通有限公司;佳世达科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

The invention provides an object sensing system and an object sensing method, which are used for sensing object information of an object in an indicated space, such as a target position of the object on an indicated plane. Particularly, images related to the indicated space are captured from images of optical domains formed asynchronously, and the object information of the object in the indicatedspace is determined according to the captured images.

Description

物体侦测系统及方法 Object detection system and method

技术领域 FIELD

[0001] 本发明是关于一种物体侦测系统及方法,特别地,本发明是关于一种利用不同时形成的光域(non-coincident fields of light)以及单一条直线式影像传感器(line image sensor)的物体侦测系统及方法。 [0001] The present invention relates to an object detection system and method, in particular, the present invention is the optical domain (non-coincident fields of light) is not formed on the same time utilizing a linear and a single image sensor (line image sensor) object detection system and method.

背景技术 Background technique

[0002] 由于触控式屏幕(touch screen)能让操作者直觉地透过接触方式进行相对显示器的坐标输入的优点,触控式屏幕已成为现今显示器常见配置的输入装置。 [0002] Since the touch screen (touch screen) allows the operator to intuitively the advantage relative coordinate input contact manner through a display, a touch screen input device has become a common configuration today display. 触控式屏幕以广泛地应用于各类具有显示器的电子产品中,例如,监视器、笔记型计算机、平板计算机、自动柜员机、销售点终端机、游客导览系统、工业控制系统,等。 Electronics touch screen is widely applied to various types of a display, for example, a monitor, a notebook computer, a tablet computer, ATM, point of sale terminals, tourist guide system, industrial control systems, and the like.

[0003] 除了传统电阻式、电容式等操作者必须接触的触控屏幕外,利用摄像组件(image-capturing device)让操作者无需真正接触到显示器的坐标输入方式也已被采用。 [0003] In addition to the traditional resistive touch screen, capacitive operator must contact the like, using an imaging assembly (image-capturing device) allows the operator need not actually come into contact with the coordinate input display mode has been adopted. 利用摄像组件的非接触式触控屏幕(或称为光学式触控屏幕)的相关先前技术请见美国专利公告号第4,507,557号专利,在此不多做赘述。 Related imaging assembly utilizing a non-contact touch screen (or touch screen optical) of the prior art, see U.S. Patent Publication No. Patent No. 4,507,557, herein do not much repeated. 上述以光学影像方式,达成物体位置判断的物体侦测系统除可应用于触控屏幕外,也可以应用于触控绘图板、触控控制器等。 In the above embodiment the optical image, to achieve the object position determination of the object detecting system can be applied to other touch screens, graphics may be applied to the touch panel, a touch controller.

[0004] 为了更准确解析输入点的位置甚至能支持多点输入,关于光学式触控屏幕的先前技术,已有多种不同光源型态、光反射组件与导光组件的设计方案被提出,以提供更多关于输入点位置的角函数,以利准确地解析输入点的位置。 [0004] In order to more accurately resolve the position of the input point even support multi-input, optical touch screen on the prior art, there are a variety of different light patterns, light reflection assembly design of the light guide assembly is raised, to provide further input function of the angle position in order to facilitate accurately resolve the position of the input point. 例如,美国专利公告号第7,460,110 号专利,其揭露利用具备辐射发光源的对象落在指示区域内,并且配合一片波导组件(waveguide)以及装设波导组件两边缘的反射镜,进而造成上、下两层且同时形成的光域(coincident fields of light),藉此摄像单元可以同时撷取上、下两层不同的影像。 For example, U.S. Patent Publication No. Patent No. 7,460,110, which discloses the use of radiation emitting source comprising the object falls within the indication area, and with a waveguide assembly (Waveguide) and the installation of both edges of the waveguide components of the mirror, and further the resulting light field is formed while the lower layers (coincident fields of light), whereby the imaging unit can capture simultaneously on the two images under different.

[0005] 然而,若要同时撷取上、两层不同的影像,摄像单元必须采用成本较高的矩阵式影像传感器(area image sensor)、多重直线式影像传感器(multiple-lineimage sensor)或两条直线式影像传感器。 [0005] However, at the same time to capture on the different images, the imaging unit must use two high-cost image sensor matrix (area image sensor), multiple linear image sensor (multiple-lineimage sensor) or two linear image sensor. 此外,采用矩阵式影像传感器、多重直线式影像传感器或两条直线式影像传感器,光学式触控屏幕需要耗费较多的运算资源才能解析这些影像传感器所撷取的影像,尤其是采用矩阵式影像传感器。 Moreover, a matrix-type image sensor, multiple linear image sensor or two linear image sensor, an optical touch screen operation takes more resources to parse the images captured image sensor, in particular a matrix-type image sensor. 此外,采用矩阵式影像传感器、多重直线式影像传感器或两条直线式影像传感器,光学式触控屏幕其系统组装所造成的误差会导致这些影像传感器感测到错的光域或感测不到光域的情况,尤其是采用两条直线式影像传感器。 Moreover, a matrix-type image sensor, multiple linear image sensor error or two linear image sensor, an optical touch screen system which leads to the assembly caused by the image sensor senses the wrong light sensing domain or less the light field, especially the use of two linear image sensor.

[0006] 此外,根据美国专利公告号第7,460,110号专利的光学式触控屏幕需具备辐射发光源的对象、波导组件与反射镜,三者同时搭配才能达成上、下两层且同时形成的光域。 [0006] Further, according to Patent Publication No. U.S. Patent No. 7,460,110 for an optical touch screen includes a radiation emitting source object, the mirror waveguide assembly, in order to reach the same time with three upper and lower layers and while the optical domain formation. 明显地,美国专利公告号第7,460,110号专利的架构较为复杂。 Obviously, US Pat. No. No. 7,460,110 patented architecture is more complex. 而且,关于光学示触控屏幕的先前技术,其摄像单元对指示区域的辨识范围以及落在指示区域内的对象的分辨率,仍有待提升。 Further, on the optical touch screen shown in prior art, the resolution of the object which the imaging unit within the range of the indication region and the identification indication area falls, to be improved.

发明内容 SUMMARY

[0007] 因此,本发明的一个目的在于提供一种物体侦测系统及方法,用以同样地利用光学方式侦测物体在指示平面上的目标位置。 [0007] It is therefore an object of the present invention is to provide an object detection system and method for use in the same manner to detect optically the position of the target object in the plane indicated. 并且特别地,根据本发明的物体侦测系统及方法利用不同时形成的光域(non-coincident fields of light)以及单一条直线式影像传感器,以解决上述利用同时形成的光域以及昂贵的影像传感器的先前技术所造成的问题。 And in particular, by light domain (non-coincident fields of light) and a single linear image sensor are not formed at the same time according to the object detection system and method of the present invention to solve the above-described optical domain, and simultaneously formed using expensive video sensor problem caused by the prior art.

[0008] 此外,本发明的另一目的在于提供一种物体侦测系统及方法,用以侦测物体在包含指示平面的指示空间内的物体形状、物体面积、物体立体形状以及物体体积等物体信息。 [0008] Further, another object of the present invention is to provide an object detection system and method for detecting an object in a space containing an indication indicating the shape of the object plane, an area of ​​the object, the object three-dimensional shape and volume of the object and other objects information.

[0009] 根据本发明的目的提出的一种具体实施方式的物体侦测系统,其周边构件(peripheral member)、滤光组件(light-filtering device)、光反身寸组件(reflector) > 第一逆向光反射组件(retro reflector)、第二逆向光反射组件、第三逆向光反射组件、控制单元(controlling unit)、第一发光单元(light-emitting unit)以及第一摄像单元(image-capturing unit)。 [0009] The object detection system of one particular embodiment of the object of the present invention proposes that Zhou Bian member (peripheral member), the filter assembly (light-filtering device), an optical assembly reflexive inch (reflector)> First Reverse light-reflecting component (retro reflector), a second reverse light-reflective components, reflecting the third reverse light assembly, a control unit (controlling unit), a first light emitting unit (light-emitting unit) and a first image pickup unit (image-capturing unit) . 周边定义指示空间以及指示空间内的指示平面,以供物体指示在指示平面上的目标位置。 And Zhou Bian space is defined indication in the indication indicates a plane space for the target object indicates a position on the indication plane. 周边构件与物体具有对比关系。 Zhou Bian member having a contrast between the objects. 指示平面具有第一边缘、与第一边缘相邻的第二边缘、与第二边缘相邻的第三边缘以及与第三边缘及第一边缘相邻的第四边缘。 Indicates a plane having a first edge, a second edge adjacent the first edge and the second edge adjacent the third edge and the third edge and the first edge adjacent the fourth edge. 第三边缘与第四边缘形成第一隅角。 The third edge and the fourth edge forms a first corner. 第二边缘与该第三边缘形成第二隅角。 The second edge forms a second corner and the third edge. 滤光组件设置于周边构件上,且位于第一边缘。 A filter assembly disposed on the peripheral member, and located at the first edge. 光反射组件设置于周边构件上,且位于第一边缘并位于滤光组件的背面。 A light reflecting assembly disposed on the peripheral member, and a first edge and positioned on the back of the filter assembly. 第一逆向光反射组件设置于周边构件上,且位于第一边缘并位于光反射组件的上方或下方。 The first reverse light-reflective components disposed on the peripheral member, and a first edge and located above or below the light-reflective components. 第二逆向光反射组件设置于周边构件上,且位于第二边缘。 The second reverse light-reflective component disposed on the peripheral member, and the second edge is located. 第三逆向光反射组件设置于周边构件上,且位于第三边缘。 Reverse third light reflection assembly disposed on the peripheral member, and a third edge. 第一发光单元电连接至控制单元,并且设置于第一隅角周边。 A first light emitting unit is electrically connected to the control unit, and provided at Zhou Bian the first corner. 第一发光单元包含第一发光源以及第二发光源。 First light emitting unit comprises a first light emitting source and a second light emitting source. 第一发光单元由控制单元控制,以驱动第一发光源发射第一光。 First light emitting unit by the control unit to drive the first light source emits a first hair. 第一光通过指示空间,进而形成第一光域。 The first light indicated by a space, thereby forming a first optical domain. 第一发光单元并且由控制单元控制,以驱动第二发光源发射第二光。 First light emitting unit and by the control unit, to drive the second light emitting source emitting light of a second. 第二光通过指示空间, 进而形成第二光域。 Indicated by the second light space, thereby forming a second optical field. 滤光组件不让第一光通过,但让第二光通过。 Let light through the first filter assembly, a second but let light through. 第一摄像单元电连接控制单元,并且设置于第一隅角周边。 A first imaging unit electrically connected to the control unit and disposed Zhou Bian of the first corner. 第一摄像单元定义第一摄像点。 A first imaging unit defines a first imaging point. 第一摄像单元由控制单元控制,当第一光域形成时,撷取指示空间藉由第一逆向光反射组件及第二逆向光反射组件呈现于第一边缘上及第二边缘上的部分周边构件的第一影像。 A first imaging unit by the control unit, when the first light field is formed by a first reverse fetch instruction spatial light reflective elements and a second reverse light-reflective component presented on the first edge and the second Zhou Bian edge portion a first image member. 第一摄像单元并且由控制单元控制,当第二光域形成时,撷取指示空间藉由第三逆向光反射组件及光反射组件呈现于第三边缘上及该第二边缘的部分周边构件的第一反射影像。 A first image pickup unit and by the control unit, when the second optical field is formed, by a third reverse fetch instruction spatial light reflecting and light-reflective components and the second component exhibits an edge in Zhou Bian edge portion on the third member a first reflection image. 控制单元处理第一影像以及第一反射影像,以决定物体位于指示空间内的物体信息。 The control unit processing first image and a first reflection image to determine the object is located within the object information indicative of the space.

[0010] 根据本发明的目的提出的一种具体实施方式的物体侦测系统,其中光反射组件可以是平面镜或棱镜。 [0010] The object detection system object of a specific embodiment of the present invention proposed, in which the component may be a light reflecting mirrors or prisms.

[0011] 根据本发明的目的提出的一种具体实施方式的物体侦测系统,其中光反射组件包含第一反射面及第二反射面。 [0011] The object detection system object of a specific embodiment of the present invention proposed, wherein the light-reflective assembly comprising a first reflecting surface and the second reflecting surface. 第一反射面及第二反射面大致上以直角相交,且朝向指示空间。 A first reflection surface and the second reflecting surface substantially at right angles, and the indication toward space. 指示平面定义主延伸平面。 Indicates a plane defined main extension plane. 第一反射面定义第一次延伸平面。 The first reflective surface defines first extension plane. 第二反射面定义第二次延伸平面。 The second reflecting surface is defined extending in a second plane. 第一次延伸平面与第二次延伸平面各与主延伸平面大致上以45度角相交。 The first and second extension plane extending in the planes of main extension plane substantially intersect at an angle of 45 degrees.

[0012] 根据本发明的目的提出的一种具体实施方式的物体侦测系统,其中光反射组件可以是棱镜。 [0012] The object detection system object of a specific embodiment of the present invention proposed, wherein the light-reflective component may be a prism.

[0013] 根据本发明的目的提出的一种具体实施方式的物体侦测系统,其中第一摄像单元直线式影像传感器。 [0013] The object detection system of one particular embodiment of the object of the present invention is proposed, wherein the first image pickup unit the linear image sensor.

[0014] 根据本发明的目的提出的另一种具体实施方式的物体侦测系统,进一步包含第四逆向光反射组件、第二发光单元以及第二摄像单元。 [0014] According to another specific embodiment of the object detecting system object of the present invention as set forth, further comprising a fourth reverse light reflective component, a second light emitting unit and the second imaging unit. 第四逆向光反射组件系设置于周边构件上,且位于第四边缘。 Reverse fourth light reflection assembly are disposed on Zhou Bian member, and in the fourth edge. 第二发光单元系电连接至控制单元,并且设置于第二隅角周边。 The second light emitting unit based electrically connected to the control unit, and provided at Zhou Bian the second corner. 第二发光单元包含第三发光源以及第四发光源。 The second light emitting unit comprises a third and a fourth light-emitting source emitting source. 第二发光单元系由控制单元控制,以驱动第三发光源发射第一光。 The second light emitting unit by the system control unit to drive the first light-emitting source emitting third. 第二发光单元并且由控制单元控制,以驱动第四发光源发射第二光。 The second light emitting unit and by the control unit, to drive the second light-emitting source emitting the fourth. 第二摄像单元系电连接控制单元,并且设置于第二隅角周边。 The second image pickup unit based electrically connected to the control unit, and provided at Zhou Bian the second corner. 第二摄像单元定义第二摄像点。 Second imaging means defining a second image point. 第二摄像单元系由控制单元控制,当第一光域形成时,撷取指示空间藉由第一逆向光反射组件及第四逆向光反射组件呈现于第一边缘上及第四边缘上的部分周边构件的第二影像。 The second imaging unit is controlled by the system control unit when the first light field is formed by a first reverse fetch instruction spatial light components and reflecting a fourth reverse presented on the light-reflecting component on a first edge and a fourth edge portion a second image of Zhou Bian member. 第二摄像单元并且由控制单元控制,当第二光域形成时,撷取指示空间藉由第三逆向光反射组件及光反射组件呈现于第三边缘及该第四边缘上的部分周边构件的第二反射影像。 The second image pickup unit and by the control unit, when the second optical field is formed, Zhou Bian portion by capturing instruction spatial light reflective assembly member and a third reverse reflection light component presented on the third edge and the fourth edge a second reflection image. 控制单元处理第一影像、第二影像、第一反射影像以及第二反射影像其中至少二者,以决定物体信息。 The control unit processes the first image, a second image, a first reflection image and a second image wherein the at least two reflector, to determine the object information.

[0015] 根据本发明的目的提出的另一种具体实施方式的物体侦测系统,其中第二摄像单元是直线式影像传感器。 [0015] According to another specific embodiment of the object detecting system object of the present invention is proposed, wherein the second imaging unit is a linear image sensor.

[0016] 根据本发明的目的提出的一种具体实施方式的物体侦测方法。 [0016] The object of the method for detecting a specific object in accordance with proposed embodiments of the present invention. 实施根据本发明的物体侦测方法的基础包含周边构件、滤光组件、光反射组件、第一逆向光反射组件、第二逆向光反射组件以及第三逆向光反射组件。 The object detection method based embodiment of the present invention comprises a Zhou Bian member, an optical assembly, a light reflection component, the first reverse light-reflective components, reflecting the second light component and a third reverse reverse light-reflecting components. 周边构件定义指示空间以及指示空间内的指示平面,以供物体指示在指示平面上的目标位置。 And a Zhou Bian member space defined indication in the indication indicates a plane space for the object indicates a target position on the indication plane. 周边构件与物体具对比关系。 Zhou Bian member and an object having a contrast between. 指示平面具有第一边缘、与第一边缘相邻的第二边缘、与第二边缘相邻的第三边缘以及与第三边缘及第一边缘相邻的第四边缘。 Indicates a plane having a first edge, a second edge adjacent the first edge and the second edge adjacent the third edge and the third edge and the first edge adjacent the fourth edge. 第三边缘与第四边缘形成第一隅角。 The third edge and the fourth edge forms a first corner. 第二边缘与第三边缘形成第二隅角。 Second edge and the third edge forms the second corner. 滤光组件设置于周边构件上,且位于第一边缘。 A filter assembly disposed on the peripheral member, and located at the first edge. 光反射组件设置于周边构件上,且位于第一边缘并位于滤光组件的背面。 A light reflecting assembly disposed on the peripheral member, and a first edge and positioned on the back of the filter assembly. 第一逆向光反射组件设置于周边构件上,且位于第一边缘并位于光反射组件的上方或下方。 The first reverse light-reflective components disposed on the peripheral member, and a first edge and located above or below the light-reflective components. 第二逆向光反射组件设置于周边构件上,且位于第二边缘。 The second reverse light-reflective component disposed on the peripheral member, and the second edge is located. 第三逆向光反射组件设置于周边构件上,且位于第三边缘。 Reverse third light reflection assembly disposed on the peripheral member, and a third edge. 根据本发明的物体侦测方法首先于第一隅角处,发射第一光并射向指示空间,其中第一光通过指示空间进而形成第一光域。 The object detection method according to the present invention first at the first corner, and light emitted toward the first space indication, wherein the indication by the first spatial light thereby forming a first optical domain. 接着,根据本发明的物体侦测方法当第一光域形成时,于第一隅角处撷取指示空间藉由第一逆向光反射组件及第二逆向光反射组件呈现于第一边缘上及第二边缘上的部分周边构件的第一影像。 Next, the object detection method according to the present invention, when the first light field is formed, indicating the capture of the first space at a corner by a first component and a second light reflecting reverse reverse light-reflective components and presented on the first edge a first image portion on the Zhou Bian the second edge member. 接着,根据本发明的物体侦测方法于第一隅角处,发射第二光并射向指示空间,其中滤光组件不让第一光通过但让第二光通过,第二光通过指示空间进而形成第二光域。 Next, the object detection method according to the present invention in a first corner, a transmit and a second light toward a space indication, wherein the filter assembly to keep the first light-passing but allow light to pass through the second, indicated by a second spatial light thereby forming a second optical field. 接着,根据本发明的物体侦测方法当第二光域形成时,于第一隅角处撷取指示空间藉由第三逆向光反射组件及光反射组件呈现于第三边缘及该第二边缘上的部分周边构件的第一反射影像。 Next, the object detection method according to the present invention, when the second optical field is formed, indicating the capture of the first space at the corners by a third reverse light-reflecting light-reflective components and components presented in the third edge and the second edge a first reflective image portion on the Zhou Bian of the member. 最后,根据本发明的物体侦测方法处理第一影像以及第一反射影像以决定物体位于指示空间内的物体信息。 Finally, the object detection method according to the present invention, a first reflection image and processing a first video object information to determine the object is located within the space indicated.

[0017] 本发明与先前技术相比:1.以镜像的方式,增加摄像单元可以完全辨识指示区域的范围;2.增加摄像单元与指示区域边隅的光程距离,如此可避免当对象接近隅角时,分辨率低落甚至无法辨识的困难;3.对象实像与镜像光影在摄像单元的成像不分层;4.使用两组不同波长的光源;5.物件本体无须发光;6.与先前技术需具备辐射发光源的对象、波导组件与反射镜三者同时搭配相较下,本发明的架构相对简易。 [0017] The present invention compared to the prior art: 1 in a mirror manner, the imaging unit may increase the complete range of the indication region recognition; imaging unit 2 increases with the edge region indicating an optical path from the corner, so may be avoided when the object approaches. when the corner, low resolution difficult or even not recognized;. 3 and the mirror image objects in the actual image forming is not hierarchical light image pickup unit; 4 using two light sources of different wavelengths; 5 article without emitting body; 6 previously. Object of the need to have a radiation emitting source, the mirror waveguide assembly with three simultaneous comparison, the architecture of the present invention is relatively simple.

[0018] 下面将结合附图对本发明做详细说明。 [0018] The following detailed description in conjunction with the accompanying drawings of the present invention do. 附图说明 BRIEF DESCRIPTION

[0019] 图IA是根据本发明的较佳具体实施方式的物体侦测系统的架构示意图。 [0019] FIG IA is a schematic diagram of an architecture of the object detecting system of the preferred embodiment specific embodiment of the present invention.

[0020] 图IB是图IA中的周边构件、滤光组件、光反射组件以及第一逆向光反射组件沿AA线的横截面视图。 [0020] FIG IB is a cross-sectional view of Zhou Bian member of FIG IA, the filter assembly, a reverse light-reflecting light-reflective components and the first assembly along the line AA.

[0021] 图2A是示意地绘示第一光域与第二光域分别形成时,Pl及P2两输入点阻碍光线 When [0021] Figure 2A schematically illustrates a first optical field and the second optical field are formed, Pl and P2 prevents light rays from two input points

射至第一摄像单元及第二摄像单元的路径。 Emitted to the path of the first imaging unit and the second imaging unit.

[0022] 图2B是示意地绘示第一摄像单元在TO及Tl两时间点分别撷取关于第一光域的影像以及关于第二光域的影像。 [0022] FIG. 2B is a schematically illustrates a first image on a first image capturing unit captures the optical domain are two points in time TO and Tl and the second light on the image domain.

[0023] 图2C是示意地绘示第二摄像单元在TO及Tl两时间点分别撷取关于第一光域的影像以及关于第二光域的影像。 [0023] FIG 2C is a diagram schematically illustrates a second imaging unit capturing the image on the first optical domain are two points in time TO and Tl, and an image for the second optical domain.

[0024] 图3是根据本发明的较佳具体实施方式的物体侦测方法的流程图。 [0024] FIG. 3 is a flowchart of a preferred method of detecting an object of specific embodiments of the present invention. 具体实施方式 detailed description

[0025] 本发明提供一种物体侦测系统及方法,用以同样地利用光学方式侦测物体在指示平面上的目标位置。 [0025] The present invention provides an object detection system and method for use in the same manner to detect optically the position of the target object in the plane indicated. 此外,根据本发明的物体侦测系统及方法可以侦测物体在包含指示平面的指示空间内的物体形状、物体面积、物体立体形状以及物体体积等物体信息。 Further, in the object detection system and method of the present invention can detect the shape of the object the object information of an object, area object, the object three-dimensional shape and volume of the object space containing the like indicative of the indication plane. 并且特别地,根据本发明的物体侦测系统及方法利用不同时形成的光域。 And in particular, do not use the light field is formed while the object detection system and method according to the present invention. 藉此,根据本发明的物体侦测系统及方法可以采用成本较低的影像传感器以及较少的运算资源来执行。 Accordingly, the lower cost of the image sensor and less computing resources may be employed object detection system and method according to the present invention is performed. 以下藉由对本发明的较佳具体实施方式的详细说明,藉以充分解说关于本发明的特征、精神、优点以及实施上的可行性。 By the following detailed description of preferred embodiments of the present invention, in order to fully explain the features of the present invention on mental, advantages and feasibility embodiment.

[0026] 请参阅图IA及图1B,图IA是根据本发明的较佳具体实施方式的物体侦测系统1 的架构示意图。 [0026] Referring to FIGS. IA and 1B, the architecture of FIG. IA is a schematic diagram of the object detecting system of the preferred embodiment of the present invention DETAILED embodiment of a. 图IB是图IA中的部分周边构件19(未绘示于图IA中)、滤光组件132、光反射组件134以及第一逆向光反射组件122沿AA线的横截面视图。 FIG IB is a (not shown in FIG. IA) is a cross-sectional view of a filter assembly 132, a first light-reflective components 134 and the reverse light-reflective component 122 along a line AA in FIG. IA part of Zhou Bian of the member 19. 根据本发明的物体侦测系统1用以侦测至少一个物体(例如,手指、指示笔,等)在指示平面10上的位置(例如, 图IA所示的两点位置(P1、P2))。 The object detection system 1 according to the present invention for detecting at least one object (e.g., finger, stylus, etc.) in the indicated position on the plane 10 (e.g., the position shown in FIG. IA points (P1, P2)) .

[0027] 如图IA所示,根据本发明的物体侦测系统1包含多边形的周边构件19(未绘示于图IA中,请见图1B)、滤光组件132、光反射组件134、第一逆向光反射组件122、第二逆向光反射组件124、第三逆向光反射组件126、控制单元11、第一发光单元14以及第一摄像单元16。 [0027] As shown in FIG IA, the object detection system according to the present invention comprises 19 (not shown in the FIG. IA, see Figure. IB), the filter assembly 132, the light component reflected polygonal Zhou Bian member 134, the first a reverse light-reflecting component 122, a second reverse light-reflective assembly 124, a third reverse light-reflecting component 126, the control unit 11, a first light emitting unit 14 and the first image pickup unit 16. 周边构件19定义指示空间S以及指示空间S内的指示平面10,也就是周边构件19环绕指示空间S、指示平面10。 19 indicates the definition of Zhou Bian space S, and an indication member in the plane S indicates the space 10, which is indicative of Zhou Bian member 19 surrounds the space S, 10 indicates a plane. 周边构件19约与指示空间S等高,以供物体指示在指示平面10上的目标位置(P1、P2)。 Indicating member 19 about Zhou Bian the space S and high to indicate the target location for the object (P1, P2) in the plane 10 indicated. 周边构件19与物体具有对比关系。 Zhou Bian member 19 and an object having a contrast between. 指示平面10具有第一边缘102、与第一边缘102相邻的第二边缘104、与第二边缘104相邻的第三边缘106以及与第三边缘106及第一边缘102相邻的第四边缘108。 Fourth indication plane 10 has a first edge 102, adjacent to the first edge 102 a second edge 104, 106 and a third edge 106 and the first and second edges 104 adjacent the third edge 102 adjacent edge 108. 第三边缘106与第四边缘108形成第一隅角Cl。 The third edge 106 and fourth edge 108 forming a first corner Cl. 第二边缘104与第三边缘106形成第二隅角C2。 The second edge 104 and the third edge 106 forming a second corner C2.

[0028] 同样示于图1A,滤光组件132设置于周边构件19上,且位于第一边缘102。 [0028] Also shown in FIGS. 1A, the filter assembly 132 is provided on the peripheral member 19, and located at a first edge 102. 如图IB所示,光反射组件134设置于周边构件19上,且位于第一边缘102并位于滤光组件132 的背面。 The IB shown in FIG., A light reflecting assembly 134 is provided on the peripheral member 19, and located at a first edge 102 and the back of the filter assembly 132 is located. 第一逆向光反射组件122设置于周边构件19上,且位于第一边缘102并位于光反射组件134的上方或下方(于此实施方式中以位于光反射组件134上方为例)。 The first reverse light-reflective components 122 disposed on the peripheral member 19, and located at a first edge 102 and 134 is located above or below (in this embodiment, to be located above the light-reflective component 134, for example) reflecting the light assembly. 第二逆向光反射组件124设置于周边构件19上,且位于第二边缘104。 The second reverse light-reflective components 124 disposed on the peripheral member 19, and is located at the second edge 104. 第三逆向光反射组件126设置于周边构件19上,且位于第三边缘106。 Reverse third light reflecting assembly 126 is provided on the peripheral member 19, and a third edge 106. 各逆向光反射组件反射具有一行径方向的入射光Li,并使其反射光L2大致上沿着与入射光Ll的该行径方向反向而平行的方向反射回去,如图IB所示。 Each reverse incident light Li having an optical reflection assembly acts reflection direction, and the direction of the reflected light L2 it substantially acts along the direction of the incident light Ll is reflected back in a reverse parallel, as shown in Figure IB.

[0029] 同样示于图1A,第一发光单元14电连接至控制单元11,并且设置于第一隅角Cl 周边。 [0029] Also shown in FIGS. 1A, a first light emitting unit 14 is electrically connected to the control unit 11, and provided at Zhou Bian the first corner Cl. 第一发光单元14包含第一发光源142以及第二发光源144。 First light emitting unit 14 includes a first light emitting source 142 and a second light emitting source 144. 第一发光单元14由控制单元11控制,以驱动第一发光源142发射第一光。 First light emitting unit 14 by the control unit 11 controls to drive the first light emitting source 142 of the first light emission. 第一光通过指示空间S,进而形成第一光域。 The first light indicated by the space S, thereby forming a first optical domain. 第一发光单元14并且由控制单元11控制,以驱动第二发光源144发射第二光。 A second light emitting unit 14 and emitted by the control unit 11 controls to drive the second light emitting source 144. 第二光通过指示空间S,进而形成第二光域。 Indicated by the second light space S, thereby forming a second optical field. 特别地,如图IB所示,滤光组件132不让第一光通过,但让第二光通过。 In particular, as shown in the IB, the first filter assembly 132 to prevent the light to pass through but allow light to pass through the second. 于图IB中标示实线箭头代表第一光的行进路径,虚线箭头代表第二光的行进路径。 Flag solid line arrows represent the travel path of the first light in FIG IB, the dashed line arrows represent the travel path of the second light. 同样示于图1B,第一光及第二光皆会被第一逆向光反射组件122逆向反射,第二光会通过滤光组件132,进而被光反射组件134正规反射。 Also shown in FIGS. 1B, both the first light and the second light is a first light reflecting reverse retroreflective assembly 122, the second light will pass through the filter assembly 132, assembly 134 and further reflected by the light reflecting normal. 第一光不会通过滤光组件132,也不会被滤光组件132反射。 The first light does not pass through a filter assembly 132, filter assembly 132 will not be reflected.

[0030] 于实际应用中,第一发光源142可以是发射波长为850nm的红外线发射器,第二发光源144可以是发射波长为940nm的红外线发射器。 [0030] In practical applications, the first light emitting source 142 may be an emission wavelength of 850nm infrared emitter, the second light emitting source 144 may be an emission wavelength of 940nm infrared emitters.

[0031] 于一具体实施方式中,光反射组件134可以是平面镜。 [0031] In one embodiment, component 134 may be a light reflecting mirror.

[0032] 于另一具体实施方式中,如图IB所示,光反射组件134可以包含第一反射面1342 及第二反射面1344。 [0032] In another embodiment, as shown in FIG IB, the light-reflecting component 134 may comprise a first reflecting surface 1342 and a second reflective surface 1344. 第一反射面1342及第二反射面1344大致上以直角相交,且朝向指示空间S。 The first reflective surface 1342 and a second reflective surface 1344 substantially at right angles, and the indication toward space S. 指示平面10定义主延伸平面。 10 indicates the plane of main extension plane is defined. 第一反射面1342定义第一次延伸平面。 The first reflective surface 1342 defines first extension plane. 第二反射面1344定义第二次延伸平面。 The second reflective surface 1344 defines a second plane extends. 第一次延伸平面与第二次延伸平面各与主延伸平面大致上以45度角相交。 The first and second extension plane extending in the planes of main extension plane substantially intersect at an angle of 45 degrees. 于实际应用中,上述的光反射组件134可以是棱镜。 In practical applications, the above-described light-reflective component 134 may be a prism.

[0033] 第一摄像单元16电连接控制单元11,并且设置于第一隅角Cl的周边。 [0033] The first image pickup unit 16 is electrically connected to the control unit 11, and is disposed Zhou Bian of the first corner Cl. 第一摄像单元16定义第一摄像点。 The first imaging unit 16 defines a first image point. 第一摄像单元16由控制单元11控制,当第一光域形成时,撷取指示空间S藉由第一逆向光反射组件122及第二逆向光反射组件124呈现于第一边缘102 上及第二边缘104上的部分周边构件19的第一影像。 The first imaging unit 16 by the control unit 11 controls, when the first light field is formed, the space S indicated by capturing a first reverse light-reflective components 122 and the second reverse light-reflective component 124 presented to the first and second upper edge 102 part two Zhou Bian edge 104 of the member 19 of the first image. 第一影像包含在指示空间S内的物体对第一光造成的阻碍,也就是投影在第一影像上的阴影,例如,图2B所示影像Il上的阴影(图2B所示案例将详述于下文)。 Object contained in the first image indicative of the space S, which is projected on a first image of a shadow caused by obstruction of the first light, for example, a shadow (Il on the image shown in FIG 2B will be described as shown in FIG. 2B Case below). 第一摄像单元16并且由控制单元11控制,当第二光域形成时,撷取指示空间S藉由第三逆向光反射组件126及光反射组件134呈现于第三边缘106及第二边缘104上的部分周边构件19的第一反射影像。 The first imaging unit 16 and the control by the control unit 11, when the second optical field is formed, capturing the space S indicated by a third reverse light-reflecting light-reflective components 126 and assembly 134 are presented in the third edge 106 and the second edge 104 a first Zhou Bian portion of the reflected image of the member 19. 第一反射影像包含在指示空间S内的物体对第二光造成的阻碍,也就是投影在第一反射影像上的阴影,例如,图2B所示影像12上的阴影(图2B所示案例将详述于下文)。 First reflecting image object contained in a space S indicated, is projected on the first reflective image of a shadow caused by the obstruction of the second light, e.g., a shadow on the image 12 shown in FIG. 2B (the case shown in FIG. 2B are detailed below).

[0034] 于实际应用中,第一摄像单元16可以是直线式影像传感器。 [0034] In practical applications, the first imaging unit 16 may be a linear image sensor.

[0035] 最后,控制单元11处理第一影像以及第一反射影像,以决定物体位于指示空间S 内的物体信息。 [0035] Finally, the controller 11 processes the first image and a first reflection unit image to determine the object is located within the object information indicative of the space S.

[0036] 于一具体实施方式中,物体信息包含目标位置相对于该指示平面10的相对位置。 [0036] In one embodiment, the object information including the position of the target position relative to the plane 10 indicated. 控制单元11根据第一影像中的物体于第一边缘102上或于第二边缘104上决定第一物体点(例如,如图2A中的01及02点)。 The control unit 11 according to the first object image on the first edge 102 or the first object to the decision point (e.g., points 02 and 01 as shown in 2A) to the second edge 104. 控制单元11并且根据第一反射影像中的物体于第三边缘106上决定第一反射物体点(例如,如图2A中的Rl及R2点)。 And the control unit 11 determines a first reflection point object (e.g., Rl and R2 as shown in point 2A) on the third edge 106 according to the first reflecting image object. 控制单元11并且根据第一摄像点(如图2A中的坐标点(0,0))及第一物体点(如图2A中的01及02点)的联机关系决定第一直进路径(例如,如图2A中的Dl及D2路径),根据第一摄像点(如图2A中的坐标点(0,0))及第一反射物体点(如图2A中的Rl及R2点)的联机关系以及光反射组件134决定一第一反射路径(例如,如图2A中的D3及D4路径),并根据第一直进路径(如图2A中的Dl及D2路径)及第一反射路径(如图2A中的D3及D4路径)的交会点以决定相对位置。 And the control unit 11 and the first object point (points 01 and 02 in FIG. 2A) the relationship between the online decision rectilinear path (e.g., a first image point (FIG. 2A coordinate point (0,0)) , Dl and D2 path in FIG. 2A), according to a first image point (FIG. 2A coordinate point (0,0)) and a first reflection object point (point Rl and R2 in FIG. 2A) online relationship component 134 and a light reflecting determining a first reflected path (e.g., D3 and D4 path in FIG. 2A), and in accordance with the first rectilinear path (path Dl and D2 in FIG. 2A) and a first reflected path ( D3 and D4 path in FIG. 2A) to determine the relative position of the intersection point.

[0037] 同样示图1A,根据本发明的另一较佳具体实施方式的物体侦测系统1进一步包含第四逆向光反射组件128、第二发光单元15以及第二摄像单元18。 [0037] Also shown 1A, the object detection system further particular embodiment comprising a fourth embodiment of an assembly 128 according to the reverse light-reflecting another preferred according to the invention, the second light emitting unit 15 and the second imaging unit 18.

[0038] 第四逆向光反射组件128设置于周边构件19上,且位于第四边缘108。 [0038] The fourth reverse light reflecting assembly 128 disposed on the peripheral member 19, and a fourth edge 108 is located. 第二发光单元15电连接至控制单元11,并且设置于第二隅角C2周边。 The second light emitting unit 15 is electrically connected to the control unit 11, and provided at Zhou Bian the second corner C2. 第二发光单元15包含第三发光源152以及第四发光源154。 The second light emitting unit 15 includes a third light-emitting source 152 and a fourth light emitting source 154. 第二发光单元15由控制单元11控制,以驱动第三发光源152发射第一光。 The second light emitting unit 15 is emitted by the first control unit 11 controls to drive the third light-emitting source 152. 于实际应用中,第一发光源142与第三发光源152被驱动同时发射第一光,并且第一光通过指示空间S,进而形成第一光域。 In practical applications, the first light emitting source 142 and the third light emitting source 152 is driven to simultaneously emit the first light, and the first light indicated by the space S, thereby forming a first optical domain.

[0039] 第二发光单元15并且由控制单元11控制,以驱动第四发光源154发射第二光。 [0039] The second light emitting unit 15 and the second light emitted by the control unit 11 controls to drive the fourth light emitting source 154. 于实际应用中,第二发光源144与第四发光源154被驱动同时发射第二光,并且第二光通过指示空间S,进而形成第二光域。 In practical applications, the second and the fourth light emitting source 144 light emission source 154 is driven simultaneously emit the second light, and the second light indicated by the space S, thereby forming a second optical field.

[0040] 第二影像撷取单元18电连接控制单元11,并且设置于第二隅角C2的周边。 [0040] The second image capturing unit 18 is electrically connected to the control unit 11, and is disposed in the periphery of the second corner C2. 第二摄像单元18定义第二摄像点。 The second imaging unit 18 defines the second image point. 第二摄像单元18由控制单元11控制,当第一光域形成时, 撷取指示空间S藉由第一逆向光反射组件122及第四逆向光反射组件128呈现于第一边缘102上及第四边缘108上的部分周边构件19的第二影像。 The second imaging unit 18 by the control unit 11 controls, when the first light field is formed, the space S indicated by capturing a first reverse light-reflective components 122 and fourth reverse optical reflection assembly 128 are presented in the first and second upper edge 102 four Zhou Bian portion of member 19 of edge 108 of the second image. 第二影像包含在指示空间S内的物体对第一光造成的阻碍,也就是投影在第二影像上的阴影,例如,图2C所示影像13上的阴影(图2C所示案例将详述于下文)。 The second image included in the object space S indicated, is projected on the second image of the shadow caused by obstruction of the first light, for example, a shadow (the image 13 shown in FIG. 2C-2C will be described Case below). 第二摄像单元18并且由控制单元11控制,当第二光域形成时,撷取指示空间S藉由第三逆向光反射组件126及光反射组件134呈现于第三边缘106及第四边缘108上的部分周边构件19的第二反射影像。 The second image pickup unit 18 and the control by the control unit 11, when the second optical field is formed, capturing the space S indicated by a third reverse light-reflecting light-reflective components 126 and 106 and assembly 134 are presented in the third edge 108 fourth edge a second Zhou Bian portion of the reflecting member 19 of the image. 第二反摄影像包含在指示空间S内的物体对第二光造成的阻碍,也就是投影在第二反摄影像上的阴影,例如,图2C所示影像14上的阴影(图2C所示案例将详述于下文)。 The second anti-photographic image contained in the object space S indicating obstruction of light caused by the second, i.e. the anti-shadow projected on the second photographic image, e.g., a shadow on the image 14 in FIG. 2C (2C shown in FIG. case will be detailed below). 于此较佳具体实施方式中,控制单元11处理第一影像、第二影像、第一反射影像以及第二反射影像其中至少二者,以决定物体信息。 This preferred embodiment, the control unit 11 processes the first image, a second image, a first reflection image and wherein at least two second reflecting image, to determine the object information.

[0041] 需强调的是,控制单元11也可以控制驱动第二发光源144及第四发光源154先行发射第二光以先形成第二光域,再行控制驱动第一发光源142及第三发光源152发射第一光以形成第一光域。 [0041] It is emphasized that, the control unit 11 may control the driving of the second and the fourth light emitting source 144 light emission source 154 emitting first light to second light field to form a second, and then controls the driving of the first row 142 and the second light emitting source three light emitting source 152 emits a first light to form a first optical domain.

[0042] 于实际应用中,第二摄像单元18可以是直线式影像传感器。 [0042] In practical applications, the second image pickup unit 18 may be a linear image sensor.

[0043] 以下将以两个输入点(P1、P2)落于图IA中指示平面10内并藉由第一摄像单元16 及第二摄像单元18为例,藉以说明根据本发明的物体侦测系统1其在不同时间形成光域以及撷取的影像情况。 [0043] Here will be two input points (P1, P2) indicated in FIG. IA falls within the plane 10 and the imaging unit 16 through the first and the second imaging unit 18 as an example to show how the detection object according to the present invention an optical system which forms the case of the image capturing field and at different times.

[0044] 如图2A所示,图中实线代表在TO时间点控制单元11控制驱动第一发光源142及第三发光源152发射第一光以形成第一光域,且Pl及P2两输入点阻碍第一光逆向反射至第一摄像单元16及第二摄像单元18的路径。 [0044] As shown in FIG. 2A, a solid line represents the point in time TO a first light control means 11 controls the driving of the first light emitting source 142 and the third light-emitting source 152 to the first light emitting region, and the two Pl and P2 a first input point obstruct light reflected to the first reverse path 16 and the second image pickup unit 18 of the imaging unit. 图2A中的点虚线代表在Tl时间点控制单元11驱动第二发光源144及第四发光源154先行发射第二光以先形成第二光域,且Pl及P2 两输入点阻碍第二光逆向反射并正规反射至第一摄像单元16及第二摄像单元18的路径。 Representative dotted line 11 in FIG. 2A at time point Tl drive control unit 144 of the second light emitting source 154 and the fourth light-emitting source emitting first light to a second light to form a second domain, and the two input points Pl and P2 of the second light obstruct the retroreflective regular reflected to the first path and the imaging unit 16 and the second imaging unit 18.

[0045] 同样示于图2A,Pl及P2两输入点在TO及Tl两时间点阻碍第一光及第二光反射至第一摄像单元16的路径分别形成Φ2、Φ1、Φ4及Φ3四个角向量。 [0045] Also shown in FIG. 2A, Pl and P2 of the first two input points obstruct light and the reflected light path of the second to the first imaging unit 16 is two time points TO and Tl are formed Φ2, Φ1, Φ4 and four Φ3 angle vector. 如图2Β所示,在TO时间点,第一摄像单元16撷取关于第一光域的影像II,其上具有对应角向量Φ2及Φ1的实像阴影。 FIG 2Β shown at time point TO, the imaging unit 16 capture a first image on a first optical domain II, which has a real shadow image corresponding to the angle vector Φ2 and Φ1. 在Tl时间点,第一摄像单元16撷取关于第二光域的影像12,其上具有对应角向量Φ4及Φ3的镜像阴影。 At time point Tl, the first imaging unit 16 captures an image about the second optical domain 12, which has a corresponding upper angle vector Φ3 Φ4 and of the shadow image. 由于Pl及P2两输入点在第二光域中,同样会在影像12上造成具有对应角向量Φ2及Φ1的实像阴影。 Since the two input points Pl and P2 in the second optical domain, will also result in the image 12 has a corresponding angle vector Φ1 Φ2 and the real image of the shadow. 为了减轻运算资源、缩短处理时间,在Tl时间点,第一摄像单元16仅撷取对应第一边缘102的子影像,对应第二边缘104的子影像则不撷取,所以,图2B中所示的影像12上除了对应角向量Φ4及Φ3的镜像阴影之外,还有对应角向量Φ 2的实像阴影,但没有对应角向量Φ 1的实像阴影。 In order to reduce the computing resources, reduce processing time, at the point of time Tl, a first image pickup unit 16 to retrieve only the first edge 102 corresponding to the sub-images, the sub-image corresponding to the second edge 104 is not captured, so as FIG. 2B 12 shows the image corresponding to the addition angle vector Φ3 and Φ4 shadow image, there is a real image corresponding to the shadow angle vector [Phi] 2, but no real image corresponding to the angle Φ 1 of the shaded vector.

[0046] 同样示于图2Α,Pl及Ρ2两输入点在TO及Tl两时间点阻碍第一光及第二光反射至第二摄像单元18的路径分别形成θ 2、θ 21、θ 24及θ 23四个角向量。 [0046] Also shown in FIG 2Α, Pl Ρ2 two input points and impede the first light and the second reflected light to the second image pickup unit 18 is two time points TO and Tl, respectively, of the path 2, θ 21, θ 24 is formed and [theta] θ 23 corners vectors. 如图2C所示, 在TO时间点,第二摄像单元18撷取关于第一光域的影像13,其上具有对应角向量θ 22及θ 21的实像阴影。 2C, at the time point TO, the second imaging unit 18 to capture images on the first light field 13, on which a real image having a shade according to the vector angle of θ 22 and θ 21. 在Tl时间点,第二摄像单元18撷取关于第二光域的影像14,其上具有对应角向量θ 24及θ 23的镜像阴影。 At time point Tl, the second imaging unit 18 captures an image on the second optical region 14, a shadow image having a corresponding angle vector θ 24 and θ 23 is. 由于Pl及Ρ2两输入点在第二光域中,同样会在影像14上造成具有对应角向量θ 22及θ 21的实像阴影。 Since the two input points Pl and Ρ2 the second optical domain, will also result in a real shadow image vector θ 22 and θ 21 has a corresponding corner 14 on the image. 为了减轻运算资源、缩短处理时间, 在Tl时间点,第二摄像单元18仅撷取对应第一边缘102的子影像,对应第四边缘108的子影像则不撷取,所以,图2C中所示的影像14上除了对应角向量Θ24及Θ23的镜像阴影之外,还有对应角向量θ 22的实像阴影,但没有对应角向量θ 21的实像阴影。 In order to reduce the computing resources, reduce processing time, at the point of time Tl, the second imaging unit 18 capture the image corresponding to only a subset of a first edge 102, a fourth edge corresponding to the sub-image 108 is not captured, so, as in FIG 2C 14 shown on the image corresponding to the addition angle vector Θ24 and Θ23 shadow image, there is a real image corresponding to the shadow angle vector θ 22, but no real image corresponding to the angle θ 21 of the shading vector.

[0047] 明显地,藉由解析影像II、影像12、影像13以及影像14上阴影所指示的角向量, 根据本发明的物体侦测系统1可以准确地计算出图2Α所示Pl及Ρ2两输入点的位置。 [0047] Obviously, by parsing II images, 12 images, and 13 images on the image angle vector 14 indicated by shading, the object detection system according to the present invention can accurately calculate Pl shown in FIG 2Α and two Ρ2 enter the position of the point. 更需强调的是,根据本发明的第一摄像单元16及第二摄像单元18皆可以是单一条直线式影像传感器。 More It is emphasized that, according to the present invention, the first imaging unit 16 and the second imaging unit 18 may be a single both a linear image sensor. 藉此,根据本发明的物体侦测系统可以不必采用昂贵的影像传感器,其组装上也能避免影像传感器感测到错的光域或感测不到光域的情况。 Accordingly, the object detection system according to the present invention may not necessarily use expensive image sensor, the image can be avoided assembled sensor senses the wrong light sensing domain or domains of the light sensing not the case. 本发明与先前技术最大不同之处在于:1.以镜像的方式,增加摄像单元可以完全辨识指示区域的范围;2.增加摄像单元与指示区域边隅的光程距离,如此可避免当对象接近隅角时,分辨率低落甚至无法辨识的困难;3.对象实像与镜像光影在摄像单元的成像不分层;4.使用两组不同波长的光源;5.物件本体无须发光;6.与先前技术需具备辐射发光源的对象、波导组件与反射镜三者同时搭配相较下,本发明的架构相对简易。 The present invention consists in the previous biggest difference Technology Service: 1 in a mirror manner, increasing the imaging unit can completely identify the range of the indication region; 2 increases the imaging unit and the indication region edge corner optical path distance, thus can be avoided when the object approaches. when the corner, low resolution difficult or even not recognized;. 3 and the mirror image objects in the actual image forming is not hierarchical light image pickup unit; 4 using two light sources of different wavelengths; 5 article without emitting body; 6 previously. Object of the need to have a radiation emitting source, the mirror waveguide assembly with three simultaneous comparison, the architecture of the present invention is relatively simple.

[0048] 请参阅图3,图3绘示根据本发明的一较佳具体实施方式的物体侦测方法2的流程图。 [0048] Please refer to FIG. 3, FIG. 3 shows a flowchart of an object detecting method according to one preferred embodiment of the present invention is shown 2. 实施根据本发明的物体侦测方法2的基础包含周边构件、滤光组件、光反射组件、第一逆向光反射组件、第二逆向光反射组件以及第三逆向光反射组件。 Embodiment comprises a Zhou Bian member, an optical assembly, a light reflection component, the first reverse light reflection component detection method according to the present invention, the base body 2, the second light-reflective components and a third reverse reverse light-reflecting components. 周边构件定义指示空间以及指示空间内的指示平面,以供物体指示在指示平面上的目标位置。 And a Zhou Bian member space defined indication in the indication indicates a plane space for the object indicates a target position on the indication plane. 周边构件与物体具一对比关系。 Zhou Bian member having a contrast between the objects. 指示平面具有第一边缘、与第一边缘相邻的第二边缘、与第二边缘相邻的第三边缘以及与第三边缘及第一边缘相邻的第四边缘。 Indicates a plane having a first edge, a second edge adjacent the first edge and the second edge adjacent the third edge and the third edge and the first edge adjacent the fourth edge. 第三边缘与第四边缘形成第一隅角。 The third edge and the fourth edge forms a first corner. 第二边缘与第三边缘形成第二隅角。 Second edge and the third edge forms the second corner. 滤光组件设置于周边构件上,且位于第一边缘。 A filter assembly disposed on the peripheral member, and located at the first edge. 光反射组件设置于周边构件上,且位于第一边缘并位于滤光组件的背面。 A light reflecting assembly disposed on the peripheral member, and a first edge and positioned on the back of the filter assembly. 第一逆向光反射组件设置于周边构件上,且位于第一边缘并位于光反射组件的上方或下方。 The first reverse light-reflective components disposed on the peripheral member, and a first edge and located above or below the light-reflective components. 第二逆向光反射组件设置于周边构件上,且位于第二边缘。 The second reverse light-reflective component disposed on the peripheral member, and the second edge is located. 第三逆向光反射组件设置于周边构件上,且位于第三边缘。 Reverse third light reflection assembly disposed on the peripheral member, and a third edge.

[0049] 周边构件、滤光组件、光反射组件、第一逆向光反射组件、第二逆向光反射组件以及第三逆向光反射组件的具体实施方式请见图IA及图IB所示,在此不再赘述。 [0049] DETAILED DESCRIPTION Zhou Bian member, an optical assembly, a light reflection component, the first reverse light-reflective components, reflecting the second light component and a third reverse reverse light reflecting assembly shown in FIG see Figure IA and the IB, this not repeat them. [0050] 如图3所示,根据本发明的物体侦测方法2首先执行步骤S20,于第一隅角处,发射第一光并射向指示空间,其中第一光通过指示空间进而形成第一光域。 [0050] As shown in FIG. 3, the object detection method according to the present invention will first performs step S20, the first at the corners, and light emitted toward the first space indication, wherein the indication by the first light thereby forming a first space an optical domain.

[0051] 接着,根据本发明的物体侦测方法2执行步骤S22,当第一光域形成时,于第一隅角处撷取指示空间藉由第一逆向光反射组件及第二逆向光反射组件呈现于第一边缘上及第二边缘上的部分周边构件的第一影像。 [0051] Next, the object detection method according to the present invention will perform step S22, the domain is formed when the first light, to capture the first corner space indicated by the reverse of the first and the second reverse light-reflective light-reflective components components are presented in the first image on a first portion of Zhou Bian edge of the upper member and a second edge.

[0052] 接着,根据本发明的物体侦测方法2执行步骤S24,于第一隅角处,发射第二光并射向指示空间,其中滤光组件不让第一光通过但让第二光通过,第二光通过指示空间进而形成第二光域。 [0052] Next, 2 to perform the object detection method according to the present invention a step S24, at the first corner, and light emitted toward the second space indication, wherein the filter assembly not to allow the first light by a second light but through, thereby forming a second light through the second optical indication field space.

[0053] 接着,根据本发明的物体侦测方法2执行步骤S26,当第二光域形成时,于第一隅角处撷取指示空间藉由第三逆向光反射组件及光反射组件呈现于第三边缘及该第二边缘上的部分周边构件的第一反射影像。 [0053] Next, the object detection method according to the present invention will perform step S26, the domain is formed when the second light, to capture the space indicated by the first corner at a third reverse light components and reflecting light reflected components is presented in Zhou Bian edge portion of the third member and the second edge of the first reflecting image.

[0054] 最后,根据本发明的物体侦测方法2执行步骤S28,处理第一影像以及第一反射影像以决定物体位于指示空间内的物体信息。 [0054] Finally, the object detection method according to the present invention will perform step S28, the processing of the first image and the reflected image of a first object to determine the object is located within the information indicative of the space. 关于物体信息涵盖的内容以及其决定的方式已于上文中详述,在此不再赘述。 Object information about the content and the manner to cover their decision been detailed above, are not repeated here.

[0055] 根据本发明的另一较佳具体实施方式的物体侦测方法2的基础并且包含第四逆向光反射组件。 [0055] Another preferred embodiment according to the basic embodiment of the present invention, the object detection method comprises a fourth and a reverse light-reflecting components. 第四逆向光反射组件设置于周边构件上,且位于第四边缘。 Reverse fourth light reflecting member assembly disposed on Zhou Bian, and in the fourth edge.

[0056] 步骤S20并且于第二隅角处发射第一光并射向指示空间。 [0056] Step S20 and the light emission of the first to the second indication at the corners and toward the space. 步骤S22并且于第二隅角处撷取指示空间,藉由第一逆向光反射组件及第四逆向光反射组件呈现于第一边缘上及第四边缘上的部分周边构件的第二影像。 Step S22 indicates the space and to the second capture at the corners, the light reflected by the reverse of the first component and a fourth light-reflective components are presented in reverse image portion Zhou Bian the second member on the first edge and the fourth edge. 步骤S24并且于第二隅角处发射第二光并射向指示空间。 Step S24 and emits a second light at a second corner and towards the indicated space. 步骤S26并且撷取指示空间藉由第三逆向光反射组件及光反射组件呈现于第三边缘及该第四边缘上的部分周边构件的第二反射影像。 Step S26 and the space captured by a third reverse indicating light reflecting and light-reflecting component assembly presented in third edge image portion and the second reflective member on Zhou Bian the fourth edge. 步骤S28处理第一影像、第二影像、第一反射影像以及第二反射影像其中至少二者以决定物体信息。 A first image processing step S28, the second image, a first reflection image and a second image wherein at least two of reflection to determine the object information.

[0057] 于一具体实施方式中,第一影像以及第一反射影像可以藉由单一条直线式影像传感器撷取而得。 [0057] In one embodiment, a first image and a first reflection by a single image may be a linear image sensor capturing obtained. 第二影像以及第二反射影像可以藉由另一条直线式影像传感器撷取而得。 And a second image by a second reflection image can be another linear image sensor capturing obtained.

[0058] 由以上较佳具体实施方式的详述,希望能更加清楚描述本发明的特征与精神,而并非以上述所揭露的较佳具体实施方式来对本发明的权利要求范围加以限制。 [0058] From the above detailed description of the preferred embodiment DETAILED embodiment, hoping to more clearly describe the characteristics and spirit of the invention, rather than the preferred specific embodiments disclosed above to limit the scope of the invention as claimed in claim. 相反地,其目的是希望能涵盖各种改变及具相等性的安排于本发明所欲申请的权利要求的范围内。 Conversely, its purpose is to be able to cover the range of equal rights in the desired arrangement of the present application and claims with various changes.

Claims (10)

  1. 一种物体侦测系统,其特征在于包含:周边构件,该周边构件定义指示空间以及该指示空间内的指示平面以供物体指示在该指示平面上的目标位置,该周边构件与该物体具有对比关系,该指示平面具有第一边缘、与该第一边缘相邻的第二边缘、与该第二边缘相邻的第三边缘以及与该第三边缘及该第一边缘相邻的第四边缘,该第三边缘与该第四边缘形成第一隅角,该第二边缘与该第三边缘形成第二隅角;滤光组件,该滤光组件设置于该周边构件上且位于该第一边缘;光反射组件,该光反射组件设置于该周边构件上且位于该第一边缘并位于该滤光组件的背面;第一逆向光反射组件,该第一逆向光反射组件设置于该周边构件上且位于该第一边缘并位于该光反射组件的上方或下方;第二逆向光反射组件,该第二逆向光反射组件设置于该周边构件上且位于该 An object detection system, characterized by comprising: a Zhou Bian member, the Zhou Bian member defines a plane indicated in the indication indicates space, and the space for the target object indicates a position on the indication plane, the Zhou Bian of the object having contrast member relationship, which indicates a plane having a first edge, the first edge adjacent to the second edge, adjacent to the third edge and the second edge adjacent the third edge and the fourth edge of the first edge the third edge forms a first corner with the fourth edge, the second edge forming a second corner and the third edge; filter assembly, the filter assembly disposed on the Zhou Bian the first member and located an edge; a light reflection component, the light-reflective component disposed on the Zhou Bian the first member and located at the rear edge and the filter assembly; first reverse light-reflective components, reflecting the first reverse light assembly disposed in the Zhou Bian member and located on the first edge and located above or below the light reflection component; and a second reverse light-reflective components, reflecting light of the second reverse assembly disposed on the Zhou Bian the member and located 二边缘;第三逆向光反射组件,该第三逆向光反射组件设置于该周边构件上且位于该第三边缘;控制单元;第一发光单元,该第一发光单元电连接至该控制单元并且设置于该第一隅角周边,该第一发光单元包含第一发光源以及第二发光源,该第一发光单元系由该控制单元控制以驱动该第一发光源发射第一光,该第一光通过该指示空间进而形成第一光域,该第一发光单元并且由该控制单元控制以驱动该第二发光源发射第二光,该第二光通过该指示空间进而形成第二光域,其中该滤光组件不让该第一光通过但让该第二光通过;以及第一摄像单元,该第一摄像单元电连接该控制单元并且设置于该第一隅角周边,该第一摄像单元定义第一摄像点,该第一摄像单元由该控制单元控制,当该第一光域形成时撷取该指示空间藉由该第一逆向光反射组件及该第二 Two edges; reverse third light reflection component, the third component reverse light reflecting member disposed on the Zhou Bian the third edge and is located; a control unit; a first light emitting unit, the first light emitting unit electrically connected to the control unit and disposed in the Zhou Bian the first corner, the first light emitting unit comprises a first light emitting source and a second light emitting source, the first light emitting unit is controlled by the system control unit to drive the first light-emitting source emitting the first, the second Further a light field formed by light which indicates a first space, the first light emitting unit and controls to drive the second light emitting source emits a second by the control unit, thereby forming a second optical field of the second space through which light indication wherein the first filter assembly to keep the light passes through the second light but let through; and a first image pickup unit, the imaging unit is electrically connected to the first control unit and provided at Zhou Bian the first corner, the first imaging means defining a first imaging point, the first imaging unit by the control unit controls, when retrieving the indication of the first space formed by the first optical field reverse component and the second light reflection 向光反射组件呈现于该第一边缘上及该第二边缘上的部分该周边构件的第一影像,当该第二光域形成时撷取该指示空间藉由该第三逆向光反射组件及该光反射组件呈现于该第三边缘及该第二边缘上的部分该周边构件的第一反射影像;其中该控制单元处理该第一影像以及该第一反射影像以决定该物体位于该指示空间内的物体信息。 Presented to the light-reflective element on the first edge of the first image and Zhou Bian portion of the member on the second edge, retrieving the indication of the third space by reverse reflection light component and the second light field when formed the light reflection component presented to the third edge and the second edge of the first portion of the reflected image of Zhou Bian member; wherein the control unit processes the first image and the reflected image of the first object to determine whether the space is located in the indication in the object information.
  2. 2.如权利要求1所述的物体侦测系统,其特征在于:该光反射组件为平面镜或棱镜。 2. The object detection system according to claim 1, wherein: the light reflecting plane mirror or a prism assembly.
  3. 3.如权利要求1所述的物体侦测系统,其特征在于:该光反射组件包含第一反射面及第二反射面,该第一反射面及该第二反射面以直角相交且朝向该指示空间,该指示平面定义主延伸平面,该第一反射面定义第一次延伸平面,该第二反射面定义第二次延伸平面,该第一次延伸平面与该第二次延伸平面各与该主延伸平面以45度角相交。 3. The object detection system according to claim 1, wherein: the light-reflective assembly comprising a first reflecting surface and the second reflective surface, the first reflection surface and the second reflecting surface at right angles and towards the indicates space, indicating that the plane of main extension plane is defined, the first reflective surface defines a plane extending in the first, the second reflective surface defines a second plane extending, extending the first plane and the second plane extending each with the main extension plane intersecting angle of 45 degrees.
  4. 4.如权利要求1所述的物体侦测系统,其特征在于:该第一摄像单元是直线式影像传感器。 The object detection system as claimed in claim 1, wherein: the first image pickup unit is a linear image sensor.
  5. 5.如权利要求1所述的物体侦测系统,其特征在于:该物体信息包含该目标位置相对于该指示平面的相对位置,该控制单元根据该第一影像中的该物体于该第一边缘上或于该第二边缘上决定第一物体点,根据该第一反射影像中的该物体于该第三边缘上决定第一反射物体点,根据该第一摄像点及该第一物体点的联机关系决定第一直进路径,根据该第一摄像点及该第一反射物体点的联机关系以及该光反射组件决定第一反射路径,并根据该第一直进路径及该第一反射路径的交会点以决定该相对位置。 The control unit according to the first image of the object in the first object to the target position information including the relative position with respect to the indication plane: an object detecting system as claimed in claim 1, characterized in that It determines a first upper edge or an object point on the second edge, a first decision point of reflection on the object based on the first edge of the third reflecting image of the object, based on the first point and the first object image point relationship online decision rectilinear path, determines a first reflected path connection relation according to the first image and the first reflection point of an object point and the reflected light component, and rectilinear path and the first reflecting section in accordance with the intersection point of the path to determine the relative position.
  6. 6.如权利要求1所述的物体侦测系统,其特征在于进一步包含:第四逆向光反射组件,该第四逆向光反射组件设置于该周边构件上且位于该第四边缘;第二发光单元,该第二发光单元电连接至该控制单元并且设置于该第二隅角周边,该第二发光单元包含第三发光源以及第四发光源,该第二发光单元由该控制单元控制以驱动该第三发光源发射该第一光,该第二发光单元并且由该控制单元控制以驱动该第四发光源发射该第二光;以及第二摄像单元,该第二摄像单元电连接该控制单元并且设置于该第二隅角周边,该第二摄像单元定义第二摄像点,该第二摄像单元由该控制单元控制,当该第一光域形成时撷取该指示空间藉由该第一逆向光反射组件及该第四逆向光反射组件呈现于该第一边缘上及该第四边缘上的部分该周边构件的第二影像,当该第二光域形成时 6. The object detection system according to claim 1, characterized by further comprising: a fourth light reflecting reverse assembly, the fourth reverse optical reflection assembly disposed on the Zhou Bian the member and located at the fourth edge; a second light emitting unit, the second light emitting unit electrically connected to the control unit and disposed on Zhou Bian the second corner, the second light emitting unit comprises a third and a fourth light-emitting source emitting source, the second light emitting unit controlled by the control unit driving the third light emitting source emitting the first light, the second light emitting unit and controlled by the control unit to drive the fourth light emitting source emitting the second light; and a second image pickup unit, the imaging unit is electrically connected to the second and a control unit disposed in Zhou Bian the second corner, the second image pickup unit defines a second point, the second imaging unit is controlled by the control unit, retrieving the indication by the spatial light when the first domain forms the first reverse light reflective element and the fourth reverse light reflection component presented on the first edge and the portion of the Zhou Bian edge of the fourth member of the second image, when the second optical domain forms 取该指示空间藉由该第三逆向光反射组件及该光反射组件呈现于该第三边缘及该第四边缘上的部分该周边构件的第二反射影像;其中该控制单元处理该第一影像、该第二影像、该第一反射影像以及该第二反射影像其中至少二者以决定该物体信息。 This indicates that the space taken by the third element and the reverse light-reflecting light-reflecting component is presented in the second reflecting image of the third edge and the fourth edge portion of the peripheral member; wherein the control unit processes the first image , the second image, the first image and the second reflector reflecting the at least two images to determine where the object information.
  7. 7.如权利要求6所述的物体侦测系统,其特征在于:该第二摄像单元是个直线式影像传感器。 7. The object detection system according to claim 6, wherein: the second image pickup unit is a linear image sensor.
  8. 8. —种物体侦测方法,包括:周边构件定义指示空间以及该指示空间内的指示平面以供物体指示在该指示平面上的目标位置,该周边构件与该物体具有对比关系,该指示平面具有第一边缘、与该第一边缘相邻的第二边缘、与该第二边缘相邻的第三边缘以及与该第三边缘及该第一边缘相邻的第四边缘,该第三边缘与该第四边缘形成第一隅角,该第二边缘与该第三边缘形成第二隅角,滤光组件设置于该周边构件上且位于该第一边缘,光反射组件设置于该周边构件上且位于该第一边缘并位于该滤光组件的背面,第一逆向光反射组件设置于该周边构件上且位于该第一边缘并位于该光反射组件的上方或下方,第二逆向光反射组件设置于该周边构件上且位于该第二边缘,第三逆向光反射组件设置于该周边构件上且位于该第三边缘,其特征在于该物体侦测方法包 8. - kind of object detecting method, comprising: a Zhou Bian member and a space is defined indicative of the direction indication plane space for the object indicating the indication position on the target plane, the Zhou Bian member having a contrast between the object, the indication plane having a first edge, the first edge adjacent to the second edge, adjacent to the third edge and the second edge adjacent the third edge and the fourth edge of the first edge, the third edge forming a first corner and the fourth edge, the second edge forming a second corner, a filter assembly disposed on the Zhou Bian the first member and located at the edge of the light reflection assembly disposed in the Zhou Bian edge and the third member and located on the first edge and at the rear of the filter assembly, the first reverse light-reflective component disposed on the Zhou Bian the first member and located above or below the edge and the reflected light component, the second reverse light reflection assembly disposed on the Zhou Bian the member and located at a second edge, a third reverse light reflection assembly disposed on the Zhou Bian the third member and located at the edge, characterized in that the object detection method of the packet 下步骤:(a)于该第一隅角处,发射第一光并射向该指示空间,其中该第一光通过该指示空间进而形成第一光域;(b)当该第一光域形成时,于该第一隅角处撷取该指示空间藉由该第一逆向光反射组件及该第二逆向光反射组件呈现于该第一边缘上及该第二边缘上的部分该周边构件的第一影像;(c)于该第一隅角处,发射第二光并射向该指示空间,其中该滤光组件不让该第一光但让该第二光通过,该第二光通过该指示空间进而形成第二光域;(d)当该第二光域形成时,于该第一隅角处撷取该指示空间藉由该第三逆向光反射组件及该光反射组件呈现于该第三边缘上及该第二边缘的部分该周边构件的第一反射影像; 以及(e)处理该第一影像以及该第一反射影像以决定该物体位于该指示空间内的物体信肩、o The steps of: (a) at the first corner, the first emission light and the indication toward space, wherein the first light-light thereby forming a first space through which the indication; (b) when the first light field forming, in the first corner at the instruction fetch by the first inverse spatial light reflection optical element and the second reverse reflection component presented on the first edge and the second edge portion of the peripheral member a first image; (c) at the first corner, the second light emitting and the indication toward space, wherein the filter assembly of the first light but not to allow the second light through the second optical thereby forming a second light field by the indicated space; (d) when the second light field is formed in the first corner at the instruction fetch by the third spatial light reflective element and the reverse light-reflective component render on the third edge and said second edge portion of the reflected image of the first Zhou Bian member; and (e) processing the first image and the reflected image of the first object to determine whether the object is located within the channel indication shoulder space , o
  9. 9.如权利要求8所述的物体侦测方法,其特征在于:于步骤(b)中,第一摄像点被定义,于步骤(e)中,该物体信息包含该目标位置相对于该指示平面的相对位置,第一物体点根据该第一影像中的该物体于该第一边缘上或于该第二边缘上来决定,第一反射物体点根据该第一反射影像中的该物体于该第三边缘上来决定,第一直进路径根据该第一摄像点及该第一物体点的联机关来决定,第一反射路径根据该第一摄像点及该第一反射物体点的联机关系以及该光反射组件来决定,并且该相对位置根据该第一直进路径及该第一反射路径的交会点来决定。 9. The object detection method according to claim 8, wherein: in step (b), the first image point is defined, in step (e), the object information including the position of the target with respect to the indication the relative position of the plane of the first object based on the first point of the object image on the first edge or the second edge up to the decision, a first reflection point according to the first object in the object image reflected to the up decision third edge, the first rectilinear path is determined based on the first image point of the first organ and inter-object point, the first reflection path connection relation according to the first point and the first reflective imaging object point and the reflected light component is determined, and the relative position determined by the intersection point of the first straight feed path and the first reflection path.
  10. 10.如权利要求8所述的物体侦测方法,其特征在于:第四逆向光反射组件设置于该周边构件上且位于该第四边缘,步骤(a)并且于该第二隅角处发射该第一光并射向该指示空间,步骤(b)并且于该第二隅角处撷取该指示空间藉由该第一逆向光反射组件及该第四逆向光反射组件呈现于该第一边缘上及该第四边缘上的部分该周边构件的第二影像,步骤(c)并且于该第二隅角处发射该第二光并射向该指示空间,步骤(d)并且撷取该指示空间藉由该第三逆向光反射组件及该光反射组件呈现于该第三边缘及该第四边缘上的部分该周边构件的第二反射影像,步骤(e)处理该第一影像、该第二影像、该第一反射影像以及该第二反射影像其中至少二者以决定该物体信息。 10. The object detection method according to claim 8, wherein: a fourth light reflecting reverse assembly disposed on the Zhou Bian the member and located at the fourth edge, the emission step (a) and in the second corner at a the first light and the indication toward space, step (b) and in the second corner at the instruction fetch by the first inverse spatial light reflection component and the fourth component present in the light reflection reverse the first the upper edge and the portion of the Zhou Bian edge of the fourth member on the second image, step (c) and the second light emitted in the second toward the corners and the instruction space, step (d) and retrieve the by indicating that the third spatial light reflective element and the reverse light-reflective assembly presented to the third edge and the fourth edge portion of the reflected image of Zhou Bian the second member, in step (e) processing the first image, the a second image, the first image and the second reflector reflecting the at least two images to determine where the object information. 4 4
CN 201010143684 2010-03-07 2010-03-07 Object sensing system and method CN101923418B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010143684 CN101923418B (en) 2010-03-07 2010-03-07 Object sensing system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010143684 CN101923418B (en) 2010-03-07 2010-03-07 Object sensing system and method

Publications (2)

Publication Number Publication Date
CN101923418A true true CN101923418A (en) 2010-12-22
CN101923418B CN101923418B (en) 2013-01-16

Family

ID=43338386

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010143684 CN101923418B (en) 2010-03-07 2010-03-07 Object sensing system and method

Country Status (1)

Country Link
CN (1) CN101923418B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103186291A (en) * 2011-12-29 2013-07-03 原相科技股份有限公司 Optical touch system
US9389731B2 (en) 2011-12-21 2016-07-12 Pixart Imaging Inc Optical touch system having an image sensing module for generating a two-dimensional image and converting to a one-dimensional feature

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006318512A (en) * 1998-10-02 2006-11-24 Semiconductor Energy Lab Co Ltd Information terminal equipment
US7460110B2 (en) * 2004-04-29 2008-12-02 Smart Technologies Ulc Dual mode touch system
CN100468303C (en) * 2003-02-14 2009-03-11 奈克斯特控股公司 Touch screen and method to detect whether an object is exist relative to the touch screen optically
CN101609381A (en) * 2008-06-18 2009-12-23 北京汇冠新技术股份有限公司 Touch-detection sensing device using camera and reflector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006318512A (en) * 1998-10-02 2006-11-24 Semiconductor Energy Lab Co Ltd Information terminal equipment
CN100468303C (en) * 2003-02-14 2009-03-11 奈克斯特控股公司 Touch screen and method to detect whether an object is exist relative to the touch screen optically
US7460110B2 (en) * 2004-04-29 2008-12-02 Smart Technologies Ulc Dual mode touch system
CN101609381A (en) * 2008-06-18 2009-12-23 北京汇冠新技术股份有限公司 Touch-detection sensing device using camera and reflector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9389731B2 (en) 2011-12-21 2016-07-12 Pixart Imaging Inc Optical touch system having an image sensing module for generating a two-dimensional image and converting to a one-dimensional feature
CN103186291A (en) * 2011-12-29 2013-07-03 原相科技股份有限公司 Optical touch system
CN103186291B (en) * 2011-12-29 2015-12-02 原相科技股份有限公司 The optical touch system

Also Published As

Publication number Publication date Type
CN101923418B (en) 2013-01-16 grant

Similar Documents

Publication Publication Date Title
US7204428B2 (en) Identification of object on interactive display surface by identifying coded pattern
US20110210946A1 (en) Light-based touch screen using elongated light guides
US20110163998A1 (en) Light-based touch screen with shift-aligned emitter and receiver lenses
US20020021287A1 (en) Quasi-three-dimensional method and apparatus to detect and localize interaction of user-object and virtual transfer device
US20110181552A1 (en) Pressure-sensitive touch screen
US20070075648A1 (en) Reflecting light
US20100110005A1 (en) Interactive input system with multi-angle reflector
US20090090569A1 (en) Sensing System
US20050052635A1 (en) Method and system for optically tracking a target using a triangulation technique
US20050078095A1 (en) Apparatus for determining the location of a pointer within a region of interest
US20100207911A1 (en) Touch screen Signal Processing With Single-Point Calibration
US6362468B1 (en) Optical unit for detecting object and coordinate input apparatus using same
US20110267264A1 (en) Display system with multiple optical sensors
US20100321309A1 (en) Touch screen and touch module
US20110205189A1 (en) Stereo Optical Sensors for Resolving Multi-Touch in a Touch Detection System
US20110019204A1 (en) Optical and Illumination Techniques for Position Sensing Systems
US20080259053A1 (en) Touch Screen System with Hover and Click Input Methods
US20090278795A1 (en) Interactive Input System And Illumination Assembly Therefor
US7689381B2 (en) Sensing system
US20110102319A1 (en) Hybrid pointing device
US20100207909A1 (en) Detection module and an optical detection device comprising the same
US20110148819A1 (en) Display device including optical sensing frame and method of sensing touch
US20110134036A1 (en) Touchscreen Display With Plural Cameras
US20110167628A1 (en) Component bonding using a capillary effect
CN101609381A (en) Touch-detection sensing device using camera and reflector

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C14 Grant of patent or utility model
CF01