CN103019457A - Optical touch system - Google Patents

Optical touch system Download PDF

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Publication number
CN103019457A
CN103019457A CN2011102843357A CN201110284335A CN103019457A CN 103019457 A CN103019457 A CN 103019457A CN 2011102843357 A CN2011102843357 A CN 2011102843357A CN 201110284335 A CN201110284335 A CN 201110284335A CN 103019457 A CN103019457 A CN 103019457A
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China
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image
pixels
cluster
optical touch
touch system
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CN2011102843357A
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Chinese (zh)
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苏宗敏
柯怡贤
林育佳
林志新
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原相科技股份有限公司
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Priority to CN2011102843357A priority Critical patent/CN103019457A/en
Publication of CN103019457A publication Critical patent/CN103019457A/en

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Abstract

The invention discloses an optical touch system which comprises an image sensor and a processor, wherein at least one target is detected by the image sensor; the processor is coupled with the image sensor; and the processor is used for analyzing the quantity of pixel clusters generated by the at least one target in an image generated by the image sensor and generating gesture information when the quantity of the pixel clusters is more than the preset quantity of the pixel clusters.

Description

光学触控系统技术领域[0001] 本发明涉及一种光学触控系统,且特别是涉及一种手势侦测方法及运用该手势侦测方法的光学触控系统。 The optical touch system Technical Field [0001] The present invention relates to an optical touch system, and more particularly to a method for detecting a gesture and the gesture detection method using an optical touch system. 背景技术[0002] 在光学式触控系统中,影像感测器获取目标的影像,触控系统接着分析影像中目标影像的位置,然后根据目标影像的位置和光学式触控系统的部分几何尺寸计算目标座标。 [0002] In the optical touch system, the image sensor acquiring images of the subject, the system then analyzes the touch position of the image target image, then the image position of the target portion of the geometry and the optical touch system according to calculation of target coordinates. [0003] 美国专利公告号第4,782,328号揭示一种光学式触控荧幕系统,其包含两感测器和处理器,其中处理器耦接两感测器。 [0003] U.S. Patent Publication No. No. 4,782,328 discloses an optical touch screen system, comprising two sensors and a processor, wherein the processor is coupled to two sensors. 两感测器用于获取在触控荧幕区域上的目标的影像。 Two sensors for acquiring images of the target area on the touch screen. 处理器通过分析两感测器所产生的影像,决定出分别连接目标与两感测器的感测线(sensing path)。 The processor analyzes the image produced by the two sensor determines the sensing line (sensing path) respectively connected with the two sensor target. 处理器再根据感测路线计算出目标的位置座标。 The processor then calculates the position coordinates of the target according to the sensing line. [0004] 美国专利第7689381B2号揭不一种光学式触控突幕系统,其包括一反射镜、一影像感测器与一处理器。 [0004] U.S. Patent No. 7689381B2 not lift tab of an optical touch screen system, comprising a mirror, an image sensor and a processor. 反射镜设置在触控区域周边,反射镜用于产生目标的一镜像。 A mirror disposed at the periphery of the touch region, a mirror for generating a mirror image object. 影像感测器用于产生目标的影像与镜像的影像。 An image sensor for generating an image for the target image. 处理器分析通过目标的影像的感测路线与通过镜像的影像的感测路线,以及根据所述多个感测路线计算出目标的座标。 Processor analyzes the images line by sensing the target image line by sensing the image, and calculates a target route according to the coordinates of the plurality of sensing. [0005] 多点触控技术可辨识出在触控表面上同时存在的两个或以上的目标,而多点感知(multipoint awareness)被运用在高阶的操作功能上,例如:双指缩放(pinch to zoom)或启动予页定程序(activating predefined programs)。 [0005] The multi-touch technology can identify two or more target present on the touch surface simultaneously, while multipoint sensing (multipoint awareness) is used in the high-order operating functions, for example: bis-zoom ( pinch to zoom), or start page to the given program (activating predefined programs). [0006] 现有支援多点触控的光学触控系统在各预定时间点上计算出多目标的座标,然后输出不同时间点上多目标的座标于多点触控应用程序。 [0006] the existing support multi-touch optical touch system computes coordinates of the target on each of multiple predetermined time point, and outputs coordinates of multiple targets at different time points multi-touch applications. 在多点触控应用程序,会预先定义多点触控的手势(gestures),一般手势可定义为用于单指或多指卷页的拨动(pan)、画面旋转(rotation),以及两指缩放(zoom)。 In the multi-touch applications, will be pre-defined multi-touch gesture (Gestures), it is generally defined as a single finger gesture or a pinch-(PAN) volume page, screen rotation (rotation), and two finger zoom (zoom). 此外,单指触控手势大致包括常见触压、单击(flick)、选取及拖拉。 In addition, one-finger touch gesture comprises a substantially common pressure contact, click (Flick), select and drag. 另外,还有双指触击(double-tap)等可供特定软件客制化设定之用,例如游戏启动等。 Further, there are striking finger bis (double-tap) and other specific software for customized configuration purposes, for example, start a game and the like. [0007]多点触控应用程序的设计基本概念也采用事件驱动的处理模式。 [0007] The basic design concept of the multi-touch applications also use event-driven processing mode. 计算系统捕捉到触控的事件后,会呼叫已经注册好的事件处理程序,产生对应该事件处理程序所设计出的的效果。 After computing system to capture touch events, calls the event handler has been registered good, should generate an event handler for the design of the effect. [0008] 在进行多点触控操作时,现有支援多点触控的光学触控系统必须在不同时间点上计算出多目标的座标,然后输出多目标的座标于多点触控应用程序。 [0008] During multi-touch operation, the existing support multi-touch optical touch system must be calculated at different points in time the coordinates of multiple targets, and then outputs the coordinates at multiple targets multitouch application. 计算和输出多目标的座标需耗费大量时间与资源,也会造成光学触控系统反应慢。 Calculates and outputs target coordinates multi entail a lot of time and resources, will cause the optical touch system is slow to respond. 发明内容[0009] 为解决上述的问题,本发明提供了一种光学触控系统。 SUMMARY [0009] The invention is to solve the above problems, the present invention provides an optical touch system. [0010] 本发明一实施例提供一种光学触控系统,其包含一影像感测器和一处理器。 [0010] one embodiment of the present invention provides an optical touch system, comprising an image sensor and a processor. 影像感测器侦测至少一目标。 The image sensor detecting at least a goal. 处理器耦接影像感测器。 The processor is coupled to the image sensor. 处理器分析影像感测器产生的一影像中由该至少一目标产生的像素丛集数量,并于像素丛集数量大于一预定像素丛集数量时,产生一手势信息。 When the processor analyzes the number of pixels in a cluster image generated image sensor produced by the at least one target, and the number of pixels in the cluster is greater than a predetermined number of pixel clusters, generate a gesture information. [0011] 本发明另一实施例提供一种光学触控系统,其包含一影像感测器和一处理器。 Another embodiment [0011] The present invention provides an optical touch system, comprising an image sensor and a processor. 影像感测器侦测至少一目标。 The image sensor detecting at least a goal. 处理器耦接影像感测器。 The processor is coupled to the image sensor. 处理器分析一影像中由至少一目标产生的像素丛集数量,和比较该像素丛集数量与一预定像素丛集数量,以决定输出一座标或一手势信息。 Processor analyzes a pixel cluster in the image generated by at least a certain number, and compares the number of pixel clusters with a predetermined number of pixel clusters, to determine a standard output or a gesture information. [0012] 本发明另一实施例提供一种光学触控系统,其包含一影像感测器和一处理器。 Another embodiment [0012] The present invention provides an optical touch system, comprising an image sensor and a processor. 影像感测器用于侦测至少一目标并产生多个影像。 An image sensor for detecting at least one target and generating a plurality of images. 处理器接收所述多个影像、辨识各影像中多个像素丛集并根据所述多个影像中最远两像素丛集间距离变化产生一控制信息。 Processor receives the plurality of images, each image in the plurality of identifying clusters of pixels and generating a plurality of image control information according to the change in distance between the two farthest pixels cluster. [0013] 本发明另一实施例提供一种光学触控系统,其包含一影像感测器和一处理器。 Another embodiment [0013] The present invention provides an optical touch system, comprising an image sensor and a processor. 影像感测器用于侦测至少一目标并产生多影像。 The image sensor for detecting at least one target and produce multiple images. 处理器接收所述多个影像、辨识各影像中至少一像素丛集。 Processor receives the plurality of images, each image identifying at least one cluster of pixels. 处理器在所述多个影像的一者侦测到一第一像素丛集且该第一像素丛集保持在一预定范围情形下,侦测到一第二像素丛集时,则产生一控制信息。 When a processor in the plurality of image detection pixels to a first pixel cluster and the first cluster holding case at a predetermined range, detect a second pixel cluster, a control message is generated. [0014] 本发明另一实施例提供一种光学触控系统,其包含一影像感测器及一处理器。 Another embodiment [0014] The present invention provides an optical touch system, comprising an image sensor and a processor. 影像感测器用于侦测至少一目标。 The image sensor is used to detect at least a goal. 处理器辨识该影像感测器依序产生的一第一影像中的多个像素丛集与一第二影像中的多个像素丛集,该第二影像的像素丛集至少部分对应该第一影像的像素丛集,其中当该第二影像中的像素丛集的数量大于或等于该第一影像中的像素丛集的数量,且该第一影像中的各像素丛集和该第二影像中的相应的像素丛集的大小差异及/或位置差异小于一门限值时,则产生一手势信息。 A plurality of clusters of pixels a plurality of pixels of the first image processor cluster identifying the image sensor sequentially generated with a second image of the second image at least a portion of a pixel cluster corresponding to the first pixel image clusters, wherein when the number of pixels in the second image greater than or equal to the number of clusters of the cluster of pixels in the first image and the corresponding pixel of the first image cluster cluster and each pixel of the second image when the difference in size and / or position of the discrepancies are smaller than a threshold value, generating a gesture information. [0015] 上文已经概略地叙述本发明的技术特征及优点,以使下文的本发明详细描述得以获得较佳了解。 [0015] The foregoing has described schematically features and advantages of the present invention, so the present invention is described in detail hereinafter may be better understood. 构成本发明的申请专利范围标的的其它技术特征及优点将描述于下文。 Additional features and advantages of the subject matter of the patent scope of the present invention is constituted will be described below. 本发明所属技术领域中具有通常知识者应可了解,下文揭示的概念与特定实施例可作为基础而相当轻易地予以修改或设计其它结构或工艺而实现与本发明相同的目的。 Technical Field The present invention pertains generally having knowledge should be appreciated that embodiments disclosed hereinafter, with a particular concept as a basis may be relatively easily modified or designing other structures or processes for carrying out the same purposes of the present invention. 本发明所属技术领域中具有通常知识者也应可了解,这类等效的建构并无法脱离后附的申请专利范围所提出的本发明的精神和范围。 Technical Field The present invention pertains having ordinary knowledge should also be appreciated that such equivalent construction and do not depart from the spirit and scope of the invention appended patent proposed range. 附图说明[0016] 图1显不本发明一实施例的一光学触控系统的不意图;[0017] 图2A显示本发明一实施例的影像感测器产生的一影像的示意图;[0018] 图2B显示本发明一实施例的亮度波形图;[0019] 图2C显示本发明一实施例的一影像中被选择的一列像素的示意图;[0020] 图2D显示本发明一实施例的一影像中被选择的像素分布示意图;[0021] 图3系根据本发明一实施例显示两目标在光学触控系统上的示意图;[0022] 图4显示图3的两目标在一影像中产生的像素丛集的示意图;[0023] 图5为根据本发明一实施例显示一目标在光学触控系统上的示意图;[0024] 图6为根据本发明一实施例显示两目标在光学触控系统上移动的示意图;[0025] 图7为图6的两目标在一影像中产生的像素丛集的示意图;[0026] 图8为根据本发明一实施例显示两目标在光学触控系统上移动的示意图;[0027] 图9为图8的 BRIEF DESCRIPTION [0016] FIG. 1 is not significant to the present invention is not intended an optical touch system according to an embodiment; [0017] FIG. 2A is a schematic of an image to an embodiment of the image sensor of the present invention to produce a display; [0018 ] Figure 2B shows a luminance waveform diagram according to an embodiment of the present invention; [0019] FIG 2C shows a schematic view of a pixel in an image embodiment in a selected one embodiment of the present invention; a [0020] Figure 2D shows an embodiment of the present invention is the selected image pixel distribution schematic; [0021] FIG. 3 a schematic diagram of two target based on an embodiment of the optical touch system of the present invention display; [0022] FIG. 4 shows two target 3 generate an image of a schematic diagram of a pixel cluster; [0023] FIG. 5 is a schematic view of an embodiment of a touch object on the optical display system according to the present invention; on two target [0024] FIG. 6 is according to an embodiment of the present invention an optical touch system a schematic view of movement; pixel [0025] FIG. 7 is generated two objectives 6 in a schematic image cluster; [0026] FIG. 8 is a schematic diagram of two moving target on the optical touch system according to an embodiment of the present invention show ; [0027] FIG. 9 is a diagram of the 8 两目标在一影像中产生的像素丛集的示意图;[0028] 阅 图10为根据本发明一实施例显示两目标在光学触控系统上做出旋转手势的示意图; [0029] 图11至图13为图10的做出旋转手势的两目标在影像中产生的像素丛集的位置变化示意图; [0030] 图14为本发明另一实施例的光学触控系统的示意图;[0031] 图15为图14的两目标在一影像中产生的像素丛集的示意图;[0032] 图16为在图14的光学触控系统上的两目标做放大手势后的像素丛集的示意图;[0033] 图17为在图14的光学触控系统上的两目标做旋转手势后的像素丛集的示意图;[0034] 图18为本发明再一实施例的光学触控系统的示意图;[0035] 图19为本发明一实施例的手势侦测方法的流程图;[0036] 图20和图21分别图示一影像,其中两影像是依序获取且包含多个像素丛集。 A schematic view of two clusters of pixels generated in a target image; [0028] FIG. 10 is read in accordance with an embodiment of the present invention show a schematic view of the two target rotation gesture made on the optical touch system; [0029] FIGS. 11 to 13 a schematic view of the position change pixel cluster of two target rotation gesture is made in FIG 10 is generated in the image; [0030] FIG. 14 is a schematic diagram of the optical touch system according to another embodiment of the invention; [0031] FIG 15 is a schematic view of two clusters of pixels of the target 14 in a produced image; pixels after [0032] FIG. 16 is a zoom-in gesture made on two target optical touch system of Figure 14 a schematic diagram of the cluster; [0033] FIG. 17 is a a schematic view of two clusters of pixels on a target optical touch system of Figure 14 after the rotation gesture made; [0034] FIG 18 a schematic view of an optical touch system according to another embodiment of the present invention; [0035] FIG. 19 of the present invention, a a flowchart of a method of detecting a gesture of an embodiment; [0036] FIGS. 20 and 21 illustrate an image, wherein the two images are acquired sequentially and comprising a plurality of clusters of pixels. [0037] 其中,附图标记说明如下:[0038]1:光学触控系统[0039] 2 :触控区域[0040] 3、4 :目标[0041] 3'、4':镜像[0042] 5、6 :光学触控系统[0043] 11 :影像感测器[0044] 12 :处理器[0045] 13 :镜兀件[0046] 14 :影像[0047] 15、16 :投光元件[0048] 17、18、19、20a、20b :影像[0049] 51、52:影像感测器[0050] 53 :处理器[0051] 54、55、56 :影像[0052] 141、142、171、172、173、174 :像素丛集[0053] 141' ,142/ :亮度较低的部分[0054] 143 :像素[0055] 181、182 :镜元件[0056] 220 :第一影像[0057] 230 :第二影像[0058] 221、222、221' ,222'、223、541、542 :像素丛集[0059] 1711,1741 :外侧边缘[0060] 1712、1742 :内侧边缘[0061] dl、d2 :位置差异[0062] L1、L2、L3、L4、L5、L6、L7、L8 :距离[0063] W1、W2、W1'、W2':尺寸[0064] S201〜S212 :流程步骤具体实施方式[0065] 本发明的一实施例的光学触控系统通过比较影像中目标产生的像素丛集数量与一预定像素丛集数量 [0037] wherein reference numerals as follows: [0038] 1: optical touch system [0039] 2: touch area [0040] 3,4: target [0041] 3 ', 4': Mirror [0042] 5 , 6: optical touch system [0043] 11: The image sensor [0044] 12: a processor [0045] 13: lens member Wu [0046] 14: an image [0047] 15, 16: light projecting element [0048] 17,18,19,20a, 20b: image [0049] 51, 52: image sensor [0050] 53: a processor [0051] 54, 55: Imaging [0052] 141,142,171,172, 173, 174: pixel cluster [0053] 141 ', 142 /: a lower brightness portion [0054] 143: pixel [0055] 181, 182: mirror element [0056] 220: first image [0057] 230: second image [0058] 221,222,221 ', 222', 223,541,542: a pixel cluster [0059] 1711,1741: an outer edge [0060] 1712,1742: inner edges [0061] dl, d2: positional difference [ 0062] L1, L2, L3, L4, L5, L6, L7, L8: distance [0063] W1, W2, W1 ', W2': size [0064] S201~S212: process step DETAILED DESCRIPTION [0065] The present invention cluster number of pixels optical touch system according to an embodiment of the image generated by comparing the target pixel with a predetermined number of clusters ,以判断是否在进行多触控操作(multi touch operation)。 , To determine whether the multi-touch operation is performed (multi touch operation). 若是单一目标进行操作时,像素丛集数量会与预定像素丛集数量相同,此时光学触控系统根据获取影像计算目标座标;若是多目标进行操作时,像素丛集数量将会大于预定像素丛集数量,此时光学触控系统会根据所获取的多个影像所产生像素丛集的位置变化或数目变化,相对应地输出手势信息。 If a single operation when the target pixel a predetermined number of pixel clusters will be the same number of clusters, then the coordinates of the target optical touch system according to the acquired image is calculated; while if the multi-target operation, the number of pixels greater than the number of clusters will predetermined cluster of pixels, At this time, the optical touch system of the change in position of pixels or the number of clusters generated in accordance with changes in the plurality of acquired images, the output corresponding to the gesture information. [0066] 光学触控系统可包含至少一影像感测器,影像感测器用于侦测至少一目标。 [0066] The optical touch system may comprise at least one image sensor, the image sensor for detecting at least one target. 光学触控系统还可包含一处理器,处理器可耦接影像感测器,处理器用于分析影像感测器产生的影像,计算影像中像素丛集数量,比较像素丛集数量与预定像素丛集数量,且当像素丛集数量大于预定像素丛集数量时,则输出手势信息。 The optical touch system may further comprise a processor, the processor may be coupled to the image sensor, an image analysis processor for generating the image sensor to calculate the number of pixels in the cluster image, comparing the number of pixels with a predetermined number of pixels clustered clusters, and when the number of pixels greater than the predetermined number of pixels clustered clusters, the output of the gesture information. [0067] 预定像素丛集数量随着光学触控系统设计不同而不同。 [0067] a predetermined number of pixel clusters with different optical touch system of different design. 在一实施例中,预定像素丛集数量可为单一目标在各影像感测器所获取的一影像上产生的像素丛集数量。 In one embodiment, the predetermined number of pixels in the target number of clusters may be a single cluster of pixels in an image generated by each of the acquired image sensor. [0068] 以下例示本发明的概念运用在不同的光学触控系统。 Illustrates [0068] the concept of the invention used in different optical touch system. [0069] 图1显示本发明一实施例的一光学触控系统I的示意图。 [0069] FIG. 1 shows a schematic view of an optical touch system according to an embodiment I of the present invention. 图2显示本发明一实施例的影像感测器产生的一影像14的示意图。 2 shows a schematic view of an image generated by the image sensor 14 of the embodiment of an embodiment of the present invention. 参照图1和图2A所示,光学触控系统I可包含一影像感测器11、一处理器12和一镜元件13。 Referring to FIG. 1 and FIG 2A, the optical touch system I may comprise an image sensor 11, a processor 12 and a mirror element 13. 镜元件13设置于触控区域2旁,以产生目标3的镜像3'。 A mirror member 13 disposed adjacent to the touch area 2, a mirror 3 to produce a target 3 '. 影像感测器11可设置于一触控区域2旁,其入光面面向触控区域2,拍摄在触控区域2上的目标3和镜元件13所产生的镜像3',产生一影像14,其中影像14上包含目标3和镜像3'所产生的像素丛集(pixel cluster) 141和142。 The image sensor 11 may be disposed on a touch region 2 side, which faces the light incident surface of the touch area 2, the image capturing target area on the touch 2 and 3 produced by the mirror element 133 ', generating an image 14 wherein the target comprises a mirror 3 and 3 'cluster of pixels (pixel cluster) generated by the images 141 and 142 14. 处理器12耦接影像感测器11。 The processor 12 is coupled to the image sensor 11. 处理器12可分析影像14中由目标3和镜像3'所产生的像素丛集141和142 的数量,以及比较像素丛集141或142的数量与一预定像素丛集数量,以此决定计算目标3 的座标或输出一手势信息(gesture information)。 The processor 12 may analyze the image 14 by the mirror 3 and the target number of 3 'number of pixels in the generated cluster 141 and 142, and the comparison pixel clusters 141 or 142 with a predetermined number of pixel clusters, thereby calculating the target decided seat 3 standard information or outputs a gesture (gesture information). [0070] 在本实施例中,光学触控系统I的预定像素丛集数量为2,因此光学触控系统I获得的影像中,其像素丛集为2时,光学触控系统I可根据获得的影像14计算目标的座标。 [0070] In the present embodiment, the predetermined number of pixel clusters optical touch system I is 2, the image I obtained optical touch system, the pixel cluster is 2, the optical touch system according to the image I can be obtained 14 calculates the coordinates of the target. 关于目标的座标的计算方法可参考美国专利第7689381B2号,但本发明不以美国专利第7689381B2号的方法为限。 Method for calculating the coordinates of a target may refer to U.S. Pat. No. 7689381B2, but the present invention is not a method in U.S. Patent No. 7689381B2 limited. 在一实施例中,单一目标3在影像14中产生的像素丛集数量为2,因此预定像素丛集数量设定为2。 In one embodiment, a single cluster number of pixels in the target image produced 3 to 14 2, and therefore the predetermined number of clusters is set to two pixels. [0071] 像素丛集141或142在亮度上彼此相近,但不同于背景亮度的多个像素集合。 [0071] The cluster 141 or 142 pixels in the luminance close to each other, but a plurality of pixels is different from the brightness of the background set. 像素丛集141或142可为任意形状,不受限于图2A所示。 Pixel cluster 141 or 142 may be of any shape, not limited to FIG. 2A. [0072] 参照图2A至图2D所示,处理器12可利用影像14中至少部分像素的亮度信息,产生一亮度波形图(图2B),接着再从该亮度波形图中辨识出像素丛集141或142。 [0072] FIG 2A to 2D, the processor 12 may utilize the image luminance information of at least part of the pixels 14 generates a luminance waveform diagram (FIG. 2B), followed by the cluster identified pixels from the luminance waveform 141 in FIG. or 142. [0073] 若影像14中的像素丛集141或142为目标3遮蔽光所产生,则亮度波形图上会产生对应的亮度较低的部分14Γ或142'。 [0073] If the image in the pixel cluster 14 141 142 or 3 shading target generated light, the brightness can produce a low brightness portion corresponding to the waveform diagram 14Γ or 142 '. 相反地,若影像14中的像素丛集141或142为目标3反光而产生,则亮度波形图上会产生对应的亮度较高的部分。 Conversely, if the pixel cluster in the image 142 or 14 141 3-reflective target generated, results in a higher luminance corresponding to the luminance portion of the waveform in FIG. [0074] 在一实施例中,处理器12可以一预设门限值或亮度变化门限值比较亮度波形图, 由此比较出亮度较低或较高的部分。 [0074] In one embodiment, the processor 12 may compare a predetermined luminance brightness threshold value or waveform of FIG variation threshold value, whereby a lower or higher luminance comparison section. 如此,像素丛集141或142可容易地被辨识出。 Thus, the pixel clusters 141 or 142 can be easily identified. [0075] 产生亮度波形图的方法很多,以下仅列出几种常见方法,但本发明不以这些方法为限。 Method [0075] Many a luminance waveform diagram, only several common methods are listed below, but the present invention is not limited to these methods. [0076] 在一实施例中,计算影像14中每一行的像素亮度值的总和或平均,以获得一亮度波形图。 [0076] In one embodiment, the sum or the average luminance value of pixels in each row of the image 14 is calculated to obtain a luminance waveform of FIG. [0077] 在一实施例中,如图2C所示,亮度波形图可为选择的至少一列的像素的亮度值所构成,或者多列的像素的平均亮度值或总和亮度值所构成。 [0077] In one embodiment, shown in Figure 2C, the luminance is a waveform diagram showing luminance values ​​of pixels may be at least one selected constituted, or an average luminance value or the sum of the luminance values ​​of a plurality of columns of pixels constituted. [0078] 在一实施例中,亮度波形图可为不同列的像素143的亮度值所构成,如图2D所示。 [0078] In one embodiment, the luminance waveform diagram may be configured to different columns of luminance values ​​of pixels 143, shown in Figure 2D. [0079] 在一实施例中,亮度波形图可为在影像14中获取部分列的像素(例如:最暗的N 列或最売的N列)或者在每一行获取最暗N个或最売N个像素的売度值。 [0079] In one embodiment, the luminance waveform diagram may obtain a pixel portion of the column in the image 14 (e.g.: darkest N columns or most bai of N columns) or acquired in each row darkest N or most bai bai N pixels values. [0080] 在一实施例中,目标3包含手指。 [0080] In one embodiment, the target 3 comprises a finger. [0081] 再参图1所示,在一实施例中,光学触控系统I还可包含两投光元件(light projecting members) 15和16,投光元件15和16向触控区域2投光,以利目标3的侦测。 [0081] reference to FIG 1 again, in one embodiment, the optical touch system may further comprise two I light projecting element (light projecting members) 15 and 16, 16 light emitting element 15 and the light administered to the touch area 2 to facilitate detection of the target 3. 投光元件15和16可设置于触控区域2旁。 The light projecting element 15 and 16 may be disposed adjacent to the touch area 2. [0082] 参照图3和图4所示,当两目标(3和4)碰触触控区域2时,镜元件13会产生两镜像(3'和4'),影像感测器11所获取的影像17会包含目标(3和4)与镜像(3'和4') 所产生的像素丛集(171、172、173和174)。 [0082] Referring to FIGS. 3 and 4, when the (3 and 4) touching the touch area of ​​two targets 2, the mirror 13 generates two image elements (3 'and 4'), the image sensor 11 acquires the image 17 contains object (3 and 4) and the image pixel cluster (3 'and 4') generated (171, 172 and 174). 处理器12分析影像17,可计算出影像17中包含4个像素丛集(171、172、173和174),而在比较像素丛集(171、172、173和174)的数量与预定像素丛集数量(在本实施例中为2)后,处理器12会分析影像17与下一张影像间的差异,对应输出一手势信息。 Image 17, the comparison pixel clusters calculated (171, 172 and 174) a predetermined number of pixels to the number of cluster processor 12 analyzes the image 17 contains four clusters of pixels (171, 172 and 174), whereas in ( in the present embodiment as in Example 2), the processor 12 analyzes the difference between the image and the next image 17, a gesture corresponding to the output information. [0083] 在一实施例中,下一张影像是在取得影像17后,一预定的取样时间上取得。 [0083] In one embodiment, the next image is acquired in the image 17, made on a predetermined sampling time. [0084] 参照图3至图5所示,在两目标(3和4)碰触触控区域2后,接着目标4移离开触控区域2。 [0084] Referring to FIGS. 3 to 5, the target in two (3 and 4) touching the touch area after 2, 4 and then moved away from the target region 2 of the touch. 在目标4移离开触控区域2后,影像感测器11可获取出的包含2个像素丛集的影像,如图2A所示。 2 is moved away from the touch region of the target 4, the image sensor 11 includes an image available extracted two clusters of pixels, shown in Figure 2A. 在比较图4的影像17和下一张包含2个像素丛集的影像后,处理器12 分析出两影像的像素丛集数量减少,而会输出按与点击(press and tap)信息。 FIG reduce the number of comparator 174 and the image after the image contains a cluster of two pixels, the image processor 12 analyzes the two pixel clusters, and outputs the press and click (press and tap) information. 在一实施例中,按与点击(press and tap)信息对应滑鼠右键所对应的指令。 In one embodiment, the click press (press and tap) corresponding to the right-information corresponding to the instruction. [0085] 在一实施例中,处理器12接收多个影像,辨识各影像中至少一像素丛集。 [0085] In one embodiment, the processor 12 receives a plurality of images, each image identifying at least one cluster of pixels. 在一影像中侦测到一第一像素丛且第一像素丛集保持在一预定范围情形下,处理器12侦测到一第二像素丛集时,则产生一控制信息。 When it detects a first pixel and the first pixel cluster in the cluster remains in a case where a predetermined range in the image, the processor 12 detects a second pixel cluster, a control message is generated. 在一实施例中,当该第二像素丛集保持在一预定范围后消失,则输出按与点击信息。 In one embodiment, when the second pixel cluster is maintained at a predetermined range after disappearance of the output in the click information. [0086] 参照图3、图4、图6和图7所示,在获得影像17的后,处理器12可获得下一张影像18(图7)。 As shown in [0086] Referring to FIG 3, FIG 4, FIG 6 and FIG 7, the image obtained after 17, 12 obtained next image processor 18 (FIG. 7). 在触控区域2上的两目标(3和4)可彼此相互远离移动,如图6所示;而影像18可在两目标(3和4)分开时,由影像感测器11所获取而得。 2 on two target (3 and 4) can be moved away from one another in the region of the touch each other, as shown in FIG. 6; and the images 18 may be at (3 and 4) separating the two target, acquired by the image sensor 11 too. 处理器12在获取影像18 后,比较影像18的像素丛集(171、172、173和174)的数量与预定像素丛集数量(在本实施例中为2)。 After acquiring the image processor 12 18 Comparative image pixel clusters (171, 172 and 174) with a predetermined number of pixels 18 cluster number (in the present example of embodiment 2). 由于影像18的像素丛集(171、172、173和174)的数量大于预定像素丛集数量, 处理器12会计算在影像17和影像18内像素丛集(171、172、173和174)中相距最远的两像素丛集(171和174)间的距离LI和L2,比较两距离LI和L2间的变化。 Since the number of pixel clusters (171, 172 and 174) of the image pixels 18 is greater than a predetermined number of clusters, the processor 12 calculates the most distant from the image 17 and image 18 of a pixel cluster (171, 172 and 174) comparing the change between two distance LI and L2 LI between two pixel clusters (171 and 174) and L2. 在本实施例中, 由于两目标(3和4)是分开,因此两距离LI和L2间的变化是增加,即距离L2大于距离LI。 In the present embodiment, since two goals (3 and 4) are separated, and therefore a change between the two distance LI and L2 are increased, i.e., the distance LI is greater than the distance L2. 处理器12会根据距离LI和L2增加的分析结果,输出放大信息(zoom-1n information)。 The processor 12 will result, outputs the amplified information (zoom-1n information) based on the analysis of the distances LI and L2 increase. 在一实施例中,放大信息可对应键盘控制键(Ctrl)与滑鼠滚轮向上等组合所对应的指令。 In one embodiment, the amplification control information may correspond to the keyboard (Ctrl) key and the like with the mouse wheel up command corresponding to the combination. [0087] 距离LI或L2可为相距最远的两像素丛集(171和174)的代表点或边缘间的距离。 [0087] The distance LI or L2 is the distance between two clusters of pixels (171 and 174) farthest from the representative point or edge. 在一实施例中,距离LI或L2可为相距最远的两像素丛集(171和174)的外侧边缘(1711 和1741)间的距离。 In one embodiment, the distance LI or L2 may be the outer edges of two pixel clusters (171 and 174) of the distance between the farthest (1711 and 1741). 在一实施例中,距离LI或L2可为相距最远的两像素丛集(171和174) 的内侧边缘(1712和1742)间的距离。 In one embodiment, the distance LI or L2 is the distance between (1712 and 1742) is farthest away from the two pixel clusters (171 and 174) of the inner edge. 在一实施例中,距离LI或L2可为相距最远的两像素丛集(171和174)的外侧边缘(1711和1741)上一预定点的距离,其中预定点包含外侧边缘(1711和1741)的边缘点或中点。 In one embodiment, the distance LI or L2 may be a two-pixel cluster (171 and 174) farthest from the outside edge (1711 and 1741) a predetermined distance point, wherein the predetermined point comprises an outer edge (1711 and 1741) the edge point or midpoint. 在一实施例中,距离LI或L2可为相距最远的两像素丛集(171和174)的内侧边缘(1712和1742)上一预定点的距离,其中预定点包含内侧边缘(1712和1742)的边缘点或中点。 In one embodiment, the distance LI or L2 may be a two-pixel cluster furthest apart (171 and 174) of the inner edge (1712 and 1742) a predetermined distance point, wherein the predetermined inner edge point comprises (1712 and 1742) the edge point or midpoint. 在一实施例中,距离LI或L2可为相距最远的两像素丛集(171和174)的中心点的距离。 In one embodiment, the distance LI or L2 may be a two-pixel cluster (171 and 174) of the farthest distance from the center point. 在一实施例中,距离LI或L2可为相距最远的两像素丛集(171和174)的重心点的距离。 In one embodiment, the distance LI or L2 is a distance away from the center of gravity points is two pixel clusters (171 and 174) farthest. [0088] 参照图3、图4、图8和图9所示,在获得影像17之后,处理器12可获得下一张影像19(图9)。 [0088] Referring to FIG 3, FIG. 4, 8 and 9, after the image 17 is obtained, the processor 12 next image 19 is obtained (FIG. 9). 在触控区域2上的两目标(3和4)可彼此靠近移动,如图8所示;而影像19可在两目标(3和4)相靠近时,由影像感测器11所获取而得。 In the touch region on the two targets 2 (3 and 4) may be moved close to each other, as shown in FIG. 8; when the two images 19 may be the target (3 and 4) are close to and acquired by the image sensor 11 too. 处理器12在获取影像19后, 比较影像19的像素丛集(171、172、173和174)的数量与预定像素丛集数量(在本实施例中为2)。 After acquiring the image processor 12 19 Comparative image pixel clusters (171, 172 and 174) with a predetermined number of pixels 19 cluster number (in the present example of embodiment 2). 由于影像19的像素丛集(171、172、173和174)的数量大于预定像素丛集数量,处理器12会计算在影像17和影像19内像素丛集(171、172、173和174)中相距最远的两像素丛集(171和174)间的距离LI和L3,比较两距离LI和L3间的变化。 Since the number of pixel clusters (171, 172 and 174) is greater than a predetermined pixel of the image 19 the number of clusters, the processor 12 calculates the distance in the image 17 and the image 19 within the pixel cluster (171, 172 and 174) farthest Comparative LI and L3 change between two distance LI between two pixel clusters (171 and 174) and L3. 在本实施例中,由于两目标(3和4)是相靠近,因此两距离LI和L3间的变化是减少,即距离L3小于距离LI。 In the present embodiment, since two goals (3 and 4) are brought closer, and therefore changes in the distance between the two LI and L3 is reduced, i.e., the distance L3 is smaller than the distance LI. 处理器12会根据距离LI和L3减少的分析结果,输出缩小信息(zoom-out information)。 The processor 12 will reduce the distance LI and L3 analysis result, information output reduction (zoom-out information). 在一实施例中,缩小信息可对应键盘控制键(Ctrl)与滑鼠滚轮向下等组合所对应的指令。 In one embodiment, reducing the information may correspond to the keyboard control (Ctrl) key and the like mouse wheel down command corresponding to the combination. [0089] 参照图10至图13所示,在触控区域2上的两目标(3和4)可能做出旋转手势(rotation gesture)。 As shown in [0089] Referring to FIGS. 10 to 13, the two targets 2 (3 and 4) may be made rotate gesture (rotation gesture) the touch area. 例如,目标4以目标3为中心作顺时钟或逆时钟旋转,如图10所示。 For example, the target 4 for the center of the target 3 is rotated counterclockwise or clockwise, as shown in FIG. 在本实施例中,两目标(3和4)在图10的位置上分别在影像17上产生对应的像素丛集173 和174 ;镜像(3'和4')分别在影像17上产生对应的像素丛集171和172。 In the present embodiment, two targets (3 and 4) respectively generated on the image 17 corresponding to the pixel clusters 173 and 174 in the position of FIG. 10 on; image (3 'and 4') respectively produce a corresponding pixel in the image 17 cluster 171 and 172. 由于目标4 的位置不断变化及目标3的位置不变,因此在连续的影像中,像素丛集171和173的位置不会产生变化,而像素丛集172和174则会不断改变。 Since the position changing the target position of the target 3 and 4 of the same, so in a continuous image, and the pixel position 173 of the cluster 171 will not change and the pixel clusters 172 and 174 will constantly change. [0090] 在目标3绕着目标4旋转时,影像感测器11可依序获取出影像17和20a。 [0090] In the target 3 is rotated around the target 4, the image sensor 11 may sequentially acquire an image 17 and 20a. 由于影像17和20a的像素丛集(171、172、173和174)的数量大于预定像素丛集数量(在本实施例中为2)后,处理器12会计算影像17和20a内像素丛集(171、172、173和174)中相距最远的两像素丛集(171和174)间的距离LI和L4。 Since the number of image pixels 17 and 20a of the cluster (171, 172 and 174) is greater than a predetermined number of pixels clusters (in this embodiment 2), the image processor 12 calculates the pixel 17 and the cluster 20a (171, LI 172, 173 and the distance between the two clusters of pixels (171 and 174) 174) and farthest from L4. 当距离LI和距离L4不同且像素丛集(171、172、173和174)中至少一像素丛集171或173的位置不变或保持在一预定范围内时, 处理器12会输出旋转信息。 When the position different distances LI and the distance L4 and the pixel clusters (171, 172, and 174) in at least one pixel cluster 171 or 173 is constant or within a predetermined range, the processor 12 outputs rotation information. [0091] 在另一实施例中,影像17、20a和20b依序产生,各影像17、20a或20b中相距最远的两像素丛集(171和174)间的距离L1、L4和L5被分别计算。 [0091] In another embodiment, the sequentially generated images 17,20a and 20b, the distance L1 between two clusters of pixels (171 and 174) in each video 17,20a or 20b farthest, L4 and L5 are respectively calculation. 处理器12比较距离LI和距离L4可分析出两像素丛集(171和174)间的距离增加;而比较距离L4和距离L5可分析出两像素丛集(171和174)间的距离又减少。 Comparison processor 12 and the distance L4 from the LI can be analyzed pixel cluster distance between the two (171 and 174) increases; and it may be analyzed two-pixel comparison distance L4 and distance L5 cluster distance between (171 and 174) and reduced. 当处理器12分析出两像素丛集(171和174) 间的距离先是增加、后是减少,或者先是减少、后是增加,则输出旋转信息。 When the processor 12 analyzes the distance between the two clusters of pixels (171 and 174) increases at first, after a reduction, decrease or first, after the increase, the output rotation information. [0092] 在又一实施例中,多个影像依序产生,各影像中相距最远的两像素丛集间的距离分别被计算。 [0092] In yet another embodiment, a plurality of images sequentially generated, the distance between the pixels in each image cluster are farthest from the calculation. 当处理器12分析出两像素丛集间的距离是呈现周期性增减时,则输出旋转信肩、O[0093] 图14显示本发明另一实施例的光学触控系统5的示意图。 When the processor 12 analyzes the distance between the two pixel clusters is cyclical increase and decrease the output rotation signal shoulder, O [0093] FIG 14 a schematic view of an optical touch system according to another embodiment of the present invention, the display 5. 参照图14所示,光学触控系统5包含两影像感测器51和52及一处理器53,其中两影像感测器51和52耦接处理器53。 Referring to FIG. 14, the optical touch system 5 comprises two image sensors 51 and 52 and a processor 53, wherein two image sensors 51 and 52 coupled to processor 53. 两影像感测器51和52位于触控区域2分开设置,较佳地分别设置于触控区域2 的两角落上。 Two image sensors 51 and 52 located in zone 2 is provided separately from the touch, it is preferably provided on the two corners 2 of the touch area. 两影像感测器51和52拍摄在触控区域2上的至少一目标3或4。 Two image sensors 51 and 52 are captured on at least one of the touch area 2 3 or 4 target. 处理器53 根据两影像感测器51和52所产生的影像计算目标3或4的座标,或者当分析出影像中像素丛集数量将会大于预定像素丛集数量时,输出手势信息。 The processor 53 calculates the coordinates of the target 3 or 4 according to two image sensors 51 and 52 generate the image, or when the number of pixels in the image analysis of the cluster will be greater than a predetermined number of pixel clusters, outputs the gesture information. [0094] 在一实施例中,光学触控系统5的预定像素丛集数量可预设为I。 [0094] In one embodiment, the predetermined number of pixels in the optical touch system cluster 5 can be preset I. [0095] 在一实施例中,在光学触控系统5中,一目标3或4的座标是根据影像感测器51产生的一影像中的一像素丛集和影像感测器52产生的另一影像中的一像素丛集计算而得, 因此为计算一目标3或4的座标,各影像感测器51或52产生的影像中所需最少的像素丛集数量为I。 [0095] In one embodiment, the optical touch system 5, a target coordinate is 3 or 4 and in accordance with an image sensor pixel cluster image sensor 51 generates an image in the generated further 52 a pixel of an image calculated from the cluster, thus to calculate coordinates of an object 3 or 4, each of the image sensor 51 or 52 generated images required minimum number of pixel clusters is I. 因此,预定像素丛集数量可为I。 Thus, a predetermined number of pixels may be a cluster I. [0096] 参照图14至图16所示,当两目标3和4在触控区域2上时,各影像感测器51或52所获取出的影像54可包含两像素丛集541和542。 As shown in [0096] Referring to FIG. 14 to FIG. 16, when the two targets 3 and 4 when the touch area 2, each of the image sensor 51 or 52 taken image obtained may include 54 two-pixel clusters 541 and 542. 由于影像54中像素丛集的数量大于预定像素丛集数量,处理器53会比较影像54与下一张获得的影像间的变化,对应产生手势信息。 Since the number of pixels in the image 54 a predetermined number of clusters is greater than a cluster of pixels, the change between the image processor 53 compares the image 54 acquired at a corresponding gesture information is generated. 在一实施例中,若下一张影像仅出现一像素丛集,处理器53比较影像54与下一张影像,可分析出两目标3和4中一者已尚开触控区域2,因而输出按与点击(press and tap) 信息。 In one embodiment, occurs only when the next image pixel cluster, the image processor 54 and the comparator 53 next image, two targets can be analyzed in one of the 3 and 4 has been opened yet touch region 2 and thus the output press information and click (press and tap). [0097] 参照图15与图16所示,当下一张影像55中像素丛集的数量大于预定像素丛集数量时,处理器53可计算影像54和55中两像素丛集(541和542)间的距离L6和L7,比较两距离L6和L7间的变化。 As shown the distance between [0097] Referring to FIG. 15 and FIG. 16, a number of the lower 55 pixels in the image is greater than a predetermined number of pixels clustered clusters, the image processor 53 may calculate 54 and 55 two-pixel cluster (541 and 542) L6 and L7, L6, and compare the two distance L7 between changes. 当距离L6小于距离L7时,处理器53输出放大信息(zoom-1n information);而当距离L6大于距离L7时,处理器53输出放大信息(zoom-out information)。 When the distance is less than L6 L7, the output of processor 53 to enlarge the distance information (zoom-1n information); and when the distance L6 is greater than the distance L7, the output amplifying information processor 53 (zoom-out information). [0098] 参照图15与图17所示,当下张影像55中像素丛集的数量大于预定像素丛集数量时,处理器53可计算影像54和55中两像素丛集(541和542)间的距离L6和L8,比较两距离L6和L8间的变化。 When the distance between [0098] Referring to FIG. 15 and FIG. 17, the lower sheet 55 in the image is greater than a predetermined number of pixels in the cluster of cluster number of pixels, the image processor 53 may calculate 54 and 55 two-pixel cluster (541 and 542) L6 and L8, Comparative change between two distances L6 and L8. 处理器53另可比较影像中54和55中对应像素丛集(541和542) 的位置变化,当距离L6和距离L8不同时且一像素丛集(541或542)在影像中54和55的位置不变时,处理器53输出一旋转信息。 Another processor 53 may compare the images 54 and 55 (541 and 542) change in position of the pixel corresponding to the cluster, when in position 54 and 55 of the distance image and the distance L6 and L8 are not simultaneously a cluster of pixels (541 or 542) is not time varying, the processor 53 outputs a rotation information. [0099] 类似地,当处理器53分析多影像中像素丛集间的距离呈现变大后变小或变小后变大,则输出一旋转信息。 [0099] Similarly, when the processor 53 presents the analysis of large distances between the pixels becomes smaller clusters or multiple smaller images becomes large, the output of a rotation information. [0100] 像素丛集间的距离可如前述为像素丛集上代表点或边缘间的距离。 The distance between the [0100] preceding pixel cluster may be inter-representative point or edge pixel cluster distance. [0101] 图18显示本发明又一实施例的光学触控系统6的示意图。 [0101] Figure 18 shows a schematic diagram of the optical touch system according to still another embodiment 6 of the present invention. 参照图18所示,光学触控系统6包含一影像感测器11、一处理器12和两镜元件181和182。 Referring to FIG. 18, the optical touch system 6 comprises an image sensor 11, a processor 12 and two mirror elements 181 and 182. 两镜元件181和182 设置于触控区域2旁,可分别设置于触控区域2相邻两边。 Two mirror elements 181 and 182 disposed on two adjacent touch area, the touch region may be respectively provided on two adjacent sides. 当目标3在触控区域2上时,两镜元件181和182可产生3个目标3的镜像3',因此影像感测器11所获取出的影像中,可包含4像素丛集。 3 when the target 2 in the touch region, two mirror elements 181 and 182 can produce three target image 33 'of the image sensor 11 obtained thus extracted image, a pixel may comprise four clusters. 在光学触控系统6中,预定像素丛集数量可预设为4。 In the optical touch system 6, a predetermined number of pixels can be preset to 4 clusters. [0102] 类似地,当处理器12比较出一影像上的像素丛集数量大于一预定像素丛集数量时,会根据下一张影像输出对应的手势信息。 [0102] Similarly, when the processor 12 compares the number of pixels in a cluster on a predetermined number of images is greater than a cluster of pixels will be an image information according to the corresponding output of the gesture. 在一实施例中,当下一张影像的像素丛集数量变少,则输出按与点击(press and tap)信息;当两影像中的相距最远的两像素丛集的距离增加时,贝1J输出放大信息(zoom-1n information);当两影像中的相距最远的两像素丛集的距离减少时,处理器53输出放大信息(zoom-1n information);当两影像中的相距最远的两像素丛集的距离不同且两影像中至少一像素丛集的位置不变时,则输出一旋转信息。 In one embodiment, when the next image pixel cluster number becomes small, the output-per-click (press and tap) information; when the distance of the two two-pixel cluster in the image farthest from, 1J outputs the amplified shell information (zoom-1n information); while reducing the distance between two clusters of pixels farthest from the two images, the processor 53 amplifies the output information (zoom-1n information); when two cluster of pixels in the two images farthest the two images from different position and at least one pixel of the same cluster, a rotary output information. 类似地,当处理器12分析多影像中像素丛集间的距离呈现变大后变小或变小后变大,则输出一旋转信息。 Similarly, when the distance between the processor 12 analyzes the pixel cluster after presenting image multi smaller or larger small and large, a rotation of the output information. [0103] 图19显示本发明一实施例的手势侦测方法的流程图。 [0103] Figure 19 shows a flowchart of a method for detecting a gesture of an embodiment of the present invention. 参照图19所示,在步骤S201 中,一感测器获取第一影像。 As shown in FIG. 19, in step S201, a first image acquisition sensor. 在步骤S202中,计算第一影像中像素丛集数量及确定像素丛集的边界位置。 In step S202, it calculates the number of pixels in the first image cluster and determining the position of the boundary pixel cluster. 在S203中,判断第一影像中像素丛集数量是否大于一预定像素丛集数量。 In S203, it is determined the number of pixels in the first image cluster is greater than a predetermined number of pixel clusters. 在步骤S204中,当像素丛集数量大于预定像素丛集数量时,计算目标座标。 In step S204, when the number of pixels greater than the predetermined number of pixels clustered clusters, calculate the target coordinates. 在步骤S205中, 计算第一影像中相距最远的两像素丛集间的一第一距离。 In step S205, it calculates a first distance between the pixels in the first image cluster farthest. 在步骤S206中,获取一第二影像并计算第二影像中相距最远的两像素丛集间的一第二距离。 In step S206, obtain a second image and calculating a second distance between the pixels in the second image cluster farthest. 在步骤S207中,判断第一距离和第二距离是否有变化。 In step S207, first determines whether there is a change and second distances. 在步骤S208中,判断第二影像中像素丛集数量是否等于预定像素丛集数量。 In step S208, the second image is determined number of pixels is equal to a predetermined number of pixels clustered clusters. 在步骤S209中,当第二影像中像素丛集数量等于预定像素丛集数量时,输出按与点击(press and tap)信息。 In step S209, when the number of pixels in the second image cluster of the cluster of pixels is equal to the predetermined number, the information output by one click (press and tap). 在步骤S210中,判断第二距离是否大于第一距离。 In step S210, it is determined whether the second distance is greater than the first distance. 在步骤S211中,当第二距离大于第一距离时,输出放大信息(zoom-1n information)。 In step S211, when the second distance is greater than the first distance, the information output amplification (zoom-1n information). 在步骤S212 中,当第二距离小于第一距离时,输出缩小信息(zoom-out information)。 In step S212, when the second distance is less than the first distance, the information output reduction (zoom-out information). [0104] 本发明一实施例另揭示以依序获取影像内的像素丛集的特征,判断是否输出手势信息。 [0104] Another embodiment of the present invention, a disclosed embodiment to sequentially acquire pixel cluster in the image characteristics, the output is determined whether the gesture information. 参照图20与图21所示,一实施例中,光学触控系统的影像感测器可依序产生一第一影像220 (图20)和一第二影像230 (图21)。 Referring to FIG. 20 and FIG. 21, in one embodiment, the optical touch system of the image sensor can sequentially generate a first image 220 (FIG. 20) and a second image 230 (FIG. 21). 第一影像220可包含多个像素丛集221和222。 The first image 220 may comprise a plurality of pixel clusters 221 and 222. 第二影像230可包含多个像素丛集22P ,222/和223。 The second image 230 may comprise a plurality of clusters of pixels 22P, 222 / and 223. 像素丛集221具有一代表尺寸或大小Wl。 Representative pixel cluster 221 having a size or dimension Wl. 像素丛集222具有一代表尺寸或大小W2。 Representative pixel cluster 222 having a size or dimension W2. 像素丛集221'具有一代表尺寸或大小Wr。 Pixel cluster 221 'having a representative dimension or size Wr. 像素丛集222'具有一代表尺寸或大小W2'。 Pixel cluster 222 'having a representative dimension or size W2'. 光学触控系统的处理器可辨识第一影像220的多个像素丛集221和222和第二影像230的多个像素丛集22Γ ,222/和223。 A plurality of clusters of pixels in the optical touch system processor 220 may identify a first image 221 and second image 222 and a plurality of pixel clusters 230 22Γ, 222 / and 223. 第一影像220的像素丛集221可对应第二影像230的像素丛集221'。 A first image 220 of pixel 221 may correspond to the second image cluster of pixel clusters 230 221 '. 第一影像220 的像素丛集222可对应第二影像230的像素丛集T22'。 The first cluster 222 pixel image 220 may correspond to the second image pixel clusters 230 T22 '. 换言之,第影像220的像素丛集221和第二影像230的像素丛集22Γ可由同一目标产生。 In other words, the image 220 of pixel image 221 and the second cluster 230 of the same target pixel cluster may be generated 22Γ. 第一影像220的像素丛集222 和第二影像230的像素丛集222'可由同一目标产生。 A first image pixel clusters 222 and 220 of the second cluster 222 pixel image 230 'produced by the same target. 当处理器分析出第二影像230的像素丛集数量大于或等于第一影像220的像素丛集数量(或第二影像230有像素丛集223在第一影像220找不到),且第一影像220的各像素丛集221或222和第二影像230的相应像素丛集221'或222'的大小(Wl或W2和Wl'或W2')的差异及/或位置差异(dl和d2) 小于一门限值时,则产生一手势信息。 When the processor analyzes the image pixel number of the second cluster 230 is equal to or greater than the number of pixels of the first image cluster 220 (or the second image 230 pixel image 220 in the first cluster 223 not found), and the first image 220 the difference of each pixel cluster 221 or 222 and the corresponding second image pixel cluster size of 230 (or W2 and Wl of the Wl of the 'or W2') 221 'or 222' and / or the positional difference (dl and d2) is smaller than a threshold value when, a gesture information is generated. 特别地,位置差异可为对应的像素丛集(221和221' 或222和222')间的边缘位置、重心位置、中心位置或其他可代表像素丛集的点位置的差巳[0105] 本发明揭示一种手势侦测方法与运用该手势侦测方法的光学触控系统。 Edge position between the particular position of the difference may be a pixel cluster corresponding to (221 and 221 'or 222 and 222'), the difference between the center of gravity position, the center position, or other representative pixel cluster center position Pat [0105] Disclosure of the invention one kind of gesture detection method using the optical system of the touch gesture detection method. 本发明揭示的手势侦测方法可直接根据影像中像素丛集的数目与位置变化,输出手势信息,无需先计算目标座标,然后再根据座标变化进行手势分析,故可大幅降低计算时间与资源,加快系统反应速度。 Gesture detection method disclosed in the present invention may be directly according to the number of pixels in the image and change the position of the cluster, the output of the gesture information, without first calculating the target coordinates, and then the gesture analysis in accordance with the coordinates change, it can greatly reduce the computing time and resources to speed up the system response speed. [0106] 本发明的技术内容及技术特点已揭示如上,然而熟悉本项技术的人士仍可能基于本发明的教示及揭示而作种种不背离本发明精神的替换及修饰。 [0106] technical content and technical features of the present invention has been described in detail, but people familiar with this technology may still be based on the teachings of the invention disclosed and make various replacements and modifications without departing from the spirit of the invention. 因此,本发明的保护范围应不限于实施例所揭示者,而应包括各种不背离本发明的替换及修饰,并为以下的申请专利范围所涵盖。 Accordingly, the scope of the invention should not be limited by the disclosed embodiments, but should include various substitutions and modifications without departing from the present invention, and the scope of the following patent encompassed.

Claims (34)

1. 一种光学触控系统,其特征在于,包含:一影像感测器,用于侦测至少一目标;以及一处理器,耦接该影像感测器,该处理器分析该影像感测器产生的一影像中由该至少一目标产生的像素丛集数量,并于该像素丛集数量大于一预定像素丛集数量时,产生一手势信息。 An optical touch system, comprising: an image sensor for detecting at least one target; and a processor coupled to the image sensor, the processor analyzes the image sensing when the cluster number of pixels in an image generated by the generated at least one target, and the number of pixels in the cluster is greater than a predetermined number of pixel clusters, generate a gesture information.
2.根据权利要求1所述的光学触控系统,其包含两影像感测器,且该预定像素丛集数量为I。 2. The optical touch system according to claim 1, comprising two image sensor, and the predetermined number of pixel cluster I.
3.根据权利要求1所述的光学触控系统,其特征在于,还包含一镜元件,其中该镜元件产生该至少一目标的一镜像,且该预定像素丛集数量为2。 3. The optical touch system according to claim 1, characterized by further comprising a mirror element, wherein the mirror is a mirror image of the element generating the at least one object, and the predetermined number of clusters is 2 pixels.
4.根据权利要求1所述的光学触控系统,其特征在于,还包含两镜元件,该两镜元件分别产生该至少一目标的一镜像,且该预定像素丛集数量为4。 4. The optical touch system as claimed in claim 1, characterized in that two further comprising a mirror element, the two elements generate a mirror image of the at least one target, and the predetermined number of pixels as cluster 4.
5.根据权利要求1所述的光学触控系统,其特征在于,该预定像素丛集数量为单一目标在该影像感测器所获取的一影像上产生的像素丛集数量。 The optical touch system according to claim 1, wherein the predetermined number of pixels is the number of pixels clustered single cluster generated on a target image acquired by the image sensor.
6.根据权利要求1所述的光学触控系统,其特征在于,该影像包含多个像素丛集,该处理器计算所述多个像素丛集中相距最远的两像素丛集间的一距离。 6. The optical touch system according to claim 1, wherein the image comprises a plurality of clusters of pixels, a plurality of the processor to calculate the distance between two clusters of pixels of the pixel farthest from the cluster.
7.根据权利要求6所述的光学触控系统,其特征在于,该影像感测器分别取得两影像,该处理器分别计算该两影像中像素丛集中相距最远的两像素丛集间的两距离和比较该两距离间的变化。 The optical touch system according to claim 6, wherein the image sensor to obtain two images, respectively, the processor calculates the two two image pixels farthest from the cluster of two pixel clusters distance and compare changes between the two distances.
8.根据权利要求7所述的光学触控系统,其特征在于,当该两距离间的变化是增加时,该处理器输出放大信息。 8. The optical touch system as claimed in claim 7, wherein, when the change in distance between the two is increased, the processor outputs the amplified information.
9.根据权利要求7所述的光学触控系统,其特征在于,当该两距离间的变化是减少时,该处理器输出缩小信息。 9. The optical touch system as claimed in claim 7, wherein, when the change in distance between the two is reduced, the reduction processor output information.
10.根据权利要求7所述的光学触控系统,其特征在于,当该处理器分析出该两距离不同,且在该两影像的所述多个像素丛集之间至少一该像素丛集的位置相同时,则输出旋转信息。 10. The optical touch system according to claim 7, wherein when the processor analyzes the position of the two different distances, and at least one cluster of the pixels between the plurality of clusters of pixels of the two images are the same, then the output rotation information.
11.根据权利要求1所述的光学触控系统,其特征在于,该影像感测器取得两影像,而该处理器分析该两影像的像素丛集数量的变化是减少时,该处理器输出按与点击信息。 11. The optical touch system as claimed in claim 1, wherein the image sensor to obtain two images, and the processor analyzes changes in the number of clusters of pixels of the two images is reduced, output by the processor information with one click.
12.根据权利要求1所述的光学触控系统,其特征在于,该处理器利用该影像中至少部分像素的亮度信息,产生一亮度波形图,再由该亮度波形图辨识由该至少一目标产生的像素丛集。 12. The optical touch system according to claim 1, wherein the processor utilizes the image luminance information of at least part of the pixels, generating a waveform diagram luminance, then recognize the target by the at least one of the brightness waveform of FIG. pixels generated clusters.
13. 一种光学触控系统,其特征在于,包含:一影像感测器,用于侦测至少一目标;以及一处理器,耦接该影像感测器,该处理器分析一影像中由该至少一目标产生的像素丛集数量和比较该像素丛集数量与一预定像素丛集数量,以决定输出一座标或一手势信息。 13. An optical touch system, comprising: an image sensor for detecting at least one target; and a processor coupled to the image sensor, the image processor analyzes by a comparing the number of pixels and the number of pixel clusters of the cluster of an object produced by the at least predetermined number of pixels and a cluster to determine the output of a standard or a gesture information.
14.根据权利要求13所述的光学触控系统,其特征在于,包含两影像感测器,且该预定像素丛集数量为I。 14. The optical touch system according to claim 13, characterized in that it comprises two image sensors, and the number of pixels of the predetermined clusters is I.
15.根据权利要求13所述的光学触控系统,其特征在于,还包含一镜元件,该镜元件产生该至少一目标的一镜像,且该预定像素丛集数量为2。 15. The optical touch system according to claim 13, characterized in that, further comprising a mirror element, which element generates a mirror image of the at least one target, and the predetermined number of clusters is 2 pixels.
16.根据权利要求13所述的光学触控系统,其特征在于,还包含两镜元件,该两镜元件分别产生该至少一目标的一镜像,且该预定像素丛集数量为4。 16. The optical touch system according to claim 13, characterized in that two further comprising a mirror element, the two elements generate a mirror image of the at least one target, and the predetermined number of pixels as cluster 4.
17.根据权利要求13所述的光学触控系统,其特征在于,该预定像素丛集数量为单一目标在该影像感测器所获取的一影像上产生的像素丛集数量。 17. The optical touch system according to claim 13, wherein the predetermined number of pixels is the number of pixels clustered single cluster generated on a target image acquired by the image sensor.
18.根据权利要求13所述的光学触控系统,其特征在于,该影像包含多个像素丛集,且该处理器计算所述多个像素丛集中相距最远的两像素丛集间的一距离。 18. The optical touch system according to claim 13, wherein the image comprises a plurality of clusters of pixels, and the processor calculates the distance between a plurality of clusters of pixels two pixels farthest from the cluster.
19.根据权利要求18所述的光学触控系统,其特征在于,该影像感测器分别取得两影像,且该处理器分别计算该两影像中像素丛集中相距最远的两像素丛集间的两距离和比较该两距离间的变化。 19. The optical touch system according to claim 18, wherein the image sensor to obtain two images, respectively, and the processor calculates the image between the two pixel farthest from the cluster of two pixel clusters two distance and compare changes between the two distances.
20.根据权利要求19所述的光学触控系统,其特征在于,当该两距离间的变化是增加时,该处理器输出放大信息。 20. The optical touch system according to claim 19, wherein, when the change in distance between the two is increased, the processor outputs the amplified information.
21.根据权利要求19所述的光学触控系统,其特征在于,当该两距离间的变化是减少时,该处理器输出缩小信息。 21. The optical touch system according to claim 19, wherein, when the change in distance between the two is reduced, the reduction processor output information.
22.根据权利要求19所述的光学触控系统,其特征在于,当该处理器分析出该两距离不同,且在该两影像的所述多个像素丛集的间至少一该像素丛集的位置相同时,则输出旋转信息。 22. The optical touch system according to claim 19, wherein when the processor analyzes the position of the two different distances between the plurality of pixels and the at least two images of a cluster of the cluster of pixels are the same, then the output rotation information.
23.根据权利要求13所述的光学触控系统,其特征在于,该影像感测器取得两影像,该处理器分析该两影像的像素丛集数量的变化是减少时,该处理器输出按与点击信息。 23. The optical touch system according to claim 13, wherein the image sensor to obtain two images, the processor analyzes the changes in the number of clusters of pixels of the two images is reduced, output by the processor and click information.
24.根据请求项13所述的光学触控系统,其特征在于,该处理器利用该影像中至少部分像素的亮度信息,产生一亮度波形图,再由该亮度波形图辨识由该至少一目标产生的像素丛集。 24. The optical touch system of the requested item 13, wherein the processor utilizes the image luminance information of at least part of the pixels, generating a waveform diagram luminance, then recognize the target by the at least one of the brightness waveform of FIG. pixels generated clusters.
25. 一种光学触控系统,其特征在于,包含:一影像感测器,用于侦测至少一目标并产生多影像;以及一处理器,接收所述多个影像、辨识各影像中多个像素丛集并根据所述多个影像中最远两像素丛集间距离变化产生一控制信息。 25. An optical touch system, comprising: an image sensor for detecting at least one target image and generating a plurality; and a processor that receives the plurality of images, each image in the plurality Identification pixels farthest from the cluster and the cluster changes between two pixels to generate a plurality of control information according to the image.
26.根据权利要求25所述的光学触控系统,其特征在于,各影像为一二维影像,而该处理器计算各影像中至少一列像素的一亮度波形图并根据该亮度波形图辨识该多个像素丛集。 26. The optical touch system according to claim 25, wherein each image is a two-dimensional image, and the processor calculates a luminance waveform diagram of each of the at least one pixel based on the image luminance and the waveform diagram Identification a plurality of pixel clusters.
27.根据权利要求25所述的光学触控系统,其特征在于,各影像为一二维影像,而该处理器计算各影像中由部分像素所构成的一亮度波形图并根据该亮度波形图辨识该多个像素丛集。 27. The optical touch system according to claim 25, wherein each image is a two-dimensional image, and the processor calculates a waveform diagram of the luminance of luminance waveform diagram of each part of the image pixels according constituted identification of the plurality of pixel clusters.
28.根据权利要求25所述的光学触控系统,其特征在于,当该距离拉近时,该控制信息为放大信息;当该距离拉远时,该控制信息为缩小信息。 28. The optical touch system according to claim 25, wherein, when the distance is closer, the control information is an enlarged information; zoom out when the distance is, the control information to narrow the information.
29. 一种光学触控系统,其特征在于,包含:一影像感测器,用于侦测至少一目标并产生多影像;以及一处理器,接收所述多个影像、辨识各影像中至少一像素丛集;该处理器在所述多个影像的一者侦测到一第一像素丛集且该第一像素丛集保持在一预定范围情形下,侦测到一第二像素丛集时,则产生一控制信息。 29. An optical touch system, comprising: an image sensor for detecting at least one target image and generating a plurality; and a processor that receives the plurality of images, each image in the identification of at least a pixel cluster; the processor to one of the plurality of detected image pixels to a first pixel cluster, and when the first cluster holding the case in a predetermined range, detect a second pixel cluster is generated a control information.
30.根据权利要求29所述的光学触控系统,其特征在于,当该第二像素丛集保持在一预定范围后消失,则输出按与点击信息。 30. The optical touch system according to claim 29, wherein, when the second pixel cluster disappear after holding a predetermined range, the output in the click information.
31.根据权利要求29所述的光学触控系统,其特征在于,当该第二像素丛集逐渐靠近该第一像素丛集,则产生放大信息;当该第二像素丛集逐渐靠近该第一像素丛集,则产生缩小信息。 31. The optical touch system according to claim 29, wherein, when the second pixel cluster adjacent to the first pixel cluster gradually, generating amplified information; when the second pixel cluster adjacent to the first pixel cluster progressively it is generated bridge the information.
32.根据权利要求29所述的光学触控系统,其特征在于,各影像为一二维影像,而该处理器计算各影像中至少一列像素的一亮度波形图并根据该亮度波形图辨识该多个像素丛集。 32. The optical touch system according to claim 29, wherein each image is a two-dimensional image, and the processor calculates a luminance waveform diagram of each of the at least one pixel based on the image luminance and the waveform diagram Identification a plurality of pixel clusters.
33.根据权利要求29所述的光学触控系统,其特征在于,各影像为一二维影像,而该处理器计算各影像中由部分像素所构成的一亮度波形图并根据该亮度波形图辨识该多个像素丛集。 33. The optical touch system according to claim 29, wherein each image is a two-dimensional image, and the processor calculates a waveform diagram of the luminance of luminance waveform diagram of each part of the image pixels according constituted identification of the plurality of pixel clusters.
34. 一种光学触控系统,其特征在于,包含:一影像感测器,用于侦测至少一目标;以及一处理器,辨识该影像感测器依序产生的一第一影像中的多个像素丛集与一第二影像中的多个像素丛集,该第二影像的像素丛集至少部分对应该第一影像的像素丛集,其中当该第二影像中的像素丛集的数量大于或等于该第一影像中的像素丛集的数量,且该第一影像中的各像素丛集和该第二影像中的相应的像素丛集的大小差异及/或位置差异小于一门限值时,则产生一手势信息。 34. An optical touch system, comprising: an image sensor for detecting at least one target; and a processor, a first image recognition the image sensor sequentially produced in a plurality of clusters of pixels and a plurality of clusters of pixels in the second image, the second image at least a portion of a pixel cluster corresponding to the first image pixel clusters, wherein when the number of pixels in the second image greater than or equal to the cluster when the number of pixels in the first image cluster, and the cluster size corresponding to each pixel of the pixel differences cluster in the first image and the second image and / or the position difference is less than a threshold value, generating a gesture information.
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