TWI695218B - Infrared photography positioning method, system and optical guiding module thereof used for interactive whiteboard - Google Patents
Infrared photography positioning method, system and optical guiding module thereof used for interactive whiteboard Download PDFInfo
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- TWI695218B TWI695218B TW108103625A TW108103625A TWI695218B TW I695218 B TWI695218 B TW I695218B TW 108103625 A TW108103625 A TW 108103625A TW 108103625 A TW108103625 A TW 108103625A TW I695218 B TWI695218 B TW I695218B
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Abstract
Description
本發明係關於一種光學定位方法，特別是關於一種用於互動式電子白板之紅外攝影定位方法、系統及其光學導攝模組。 The invention relates to an optical positioning method, in particular to an infrared photography positioning method and system for an interactive electronic whiteboard and its optical guide module.
隨著科技進步，與展示或簡報有關的工具推陳出新，例如：投影機或電子白板等，其中，互動式電子白板系統結合可投影及互動功能，因而逐漸被導入教學或商業用途。 As technology advances, tools related to presentations or presentations are introduced, such as projectors or electronic whiteboards. Among them, the interactive electronic whiteboard system combines projection and interactive functions, and is gradually being introduced into teaching or commercial use.
以紅外線互動式電子白板系統為例，透過紅外線收發器、電腦、螢幕及投影機的搭配，使得螢幕相當於大型的觸控電腦，讓所有的操作可以在電腦以及螢幕上同步的顯示以及反應，適用於各式教學場所。 Taking the infrared interactive whiteboard system as an example, through the combination of infrared transceiver, computer, screen and projector, the screen is equivalent to a large touch computer, so that all operations can be displayed and reacted simultaneously on the computer and the screen. Suitable for all kinds of teaching places.
然而，紅外線為人眼不可見光，在教學場所架設紅外線互動式電子白板系統時，由於人眼無法直接看出紅外線定位攝影機的拍攝範圍，通常需要花費許多時間反覆進行調整，才能使得紅外線定位攝影機的拍攝範圍能夠涵蓋整個投影的畫面，在使用上仍有不便之處。 However, infrared light is invisible to the human eye. When an infrared interactive whiteboard system is installed in a teaching place, because the human eye cannot directly see the shooting range of the infrared positioning camera, it usually takes a lot of time to adjust it repeatedly to make the infrared positioning camera The shooting range can cover the entire projected picture, and there are still inconveniences in use.
有鑑於此，有必要提供一種有別以往的技術方案，以解決習用技術所存在的問題。 In view of this, it is necessary to provide a technical solution different from the past to solve the problems existing in the conventional technology.
本發明之一目的在於提供一種用於互動式電子白板之紅外攝影定位方法，其係利用被投射出的十字型雷射光線，使十字型雷射光線的涵蓋範圍與紅外線定位攝影機的拍攝範圍重疊，以便進行攝影畫面的定位過程，進而提升定位便利性及精準度。 An object of the present invention is to provide an infrared photography positioning method for an interactive electronic whiteboard, which utilizes the projected cross-shaped laser light to overlap the coverage of the cross-shaped laser light with the shooting range of the infrared positioning camera In order to carry out the positioning process of the photographic picture, and thus improve the positioning convenience and accuracy.
本發明之次一目的在於提供一種用於互動式電子白板之紅 外攝影定位系統，其係利用被投射出的十字型雷射光線，使十字型雷射光線的涵蓋範圍與紅外線定位攝影機的拍攝範圍重疊，以便進行攝影畫面的定位過程，進而提升定位便利性及精準度。 The second object of the present invention is to provide a red for interactive electronic whiteboard External photography positioning system, which uses the projected cross-shaped laser light to overlap the coverage of the cross-shaped laser light and the shooting range of the infrared positioning camera, so as to perform the positioning process of the photographic picture, thereby improving the convenience of positioning and Precision.
本發明之另一目的在於提供一種光學導攝模組，其係利用被投射出的十字型雷射光線，使十字型雷射光線的涵蓋範圍與紅外線定位攝影機的拍攝範圍重疊，以便進行電子白板之紅外攝影畫面的定位過程，進而提升定位便利性及精準度。 Another object of the present invention is to provide an optical camera module that uses the projected cross-shaped laser light to overlap the coverage of the cross-shaped laser light with the shooting range of the infrared positioning camera for electronic whiteboard The positioning process of the infrared photography picture, thereby improving the convenience and accuracy of positioning.
為達上述之目的，本發明的一方面提供一種用於互動式電子白板之紅外攝影定位方法，包含步驟：提供一光學導攝模組、一處理單元、一投影機及一屏幕，該處理單元電性連接該光學導攝模組及該投影機，該處理單元被配置成控制該投影機將一畫面投影到該屏幕，該畫面被配置成具有一定位游標位於該屏幕的一中心處；控制該光學導攝模組朝向該屏幕上的該畫面進行一紅外攝影作業及投射一定位光跡，該定位光跡由一縱向直線光跡與一橫向直線光跡交會形成十字狀；控制該光學導攝模組使該定位光跡的一中心點對準該定位游標，且該定位光跡的一第一分布範圍小於該畫面的一第二分布範圍；及將該光學導攝模組朝向遠離該屏幕的一方向移動，直到該定位光跡的第一分布範圍至少含括該畫面的第二分布範圍為止。 To achieve the above objective, one aspect of the present invention provides an infrared photography positioning method for an interactive electronic whiteboard, including the steps of: providing an optical camera module, a processing unit, a projector, and a screen, the processing unit Electrically connected to the optical camera module and the projector, the processing unit is configured to control the projector to project a picture onto the screen, the picture is configured to have a positioning cursor located at a center of the screen; control The optical guide module performs an infrared photography operation and projects a positioning light track toward the picture on the screen. The positioning light track is formed by the intersection of a longitudinal straight light trace and a transverse straight light trace to form a cross shape; the optical guide is controlled The camera module aligns a center point of the positioning light trace with the positioning cursor, and a first distribution range of the positioning light trace is smaller than a second distribution range of the picture; and the optical guide module faces away from the The screen moves in one direction until the first distribution range of the positioning light track includes at least the second distribution range of the picture.
在本發明之一實施例中，控制該光學導攝模組使該定位光跡的一中心點對準該定位游標，且該定位光跡的該第一分布範圍小於該畫面的第二分布範圍的步驟包含：控制該光學導攝模組使該縱向直線光跡與該橫向直線光跡的一交會點對準該定位游標，該縱向直線光跡的一長度小於該畫面的一高度，該橫向直線光跡的一長度小於該畫面的一寬度。 In an embodiment of the invention, the optical guide module is controlled to align a center point of the positioning light trace with the positioning cursor, and the first distribution range of the positioning light trace is smaller than the second distribution range of the picture The steps include: controlling the optical guide module to align an intersection point of the longitudinal straight light trace and the transverse straight light trace with the positioning cursor, a length of the longitudinal straight light trace is less than a height of the picture, the transverse A length of the linear light trace is smaller than a width of the picture.
在本發明之一實施例中，該定位光跡的第一分布範圍至少含括該畫面的第二分布範圍的步驟包含：控制該光學導攝模組使該縱向直線光跡的該長度大於或等於該畫面的該高度及該橫向直線光跡的該長度大於或等於該畫面的該寬度。 In an embodiment of the present invention, the step of locating the first distribution range of at least the second distribution range of the frame includes: controlling the optical guide module such that the length of the longitudinal straight line trace is greater than or equal to The height that is equal to the picture and the length of the lateral straight light trace are greater than or equal to the width of the picture.
在本發明之一實施例中，使該光學導攝模組朝向遠離該屏幕的該方向移動，致使該縱向直線光跡的該長度增加及該橫向直線光跡的該 長度增加。 In one embodiment of the present invention, the optical camera module is moved in the direction away from the screen, so that the length of the longitudinal linear light trace and the lateral linear light trace are increased The length increases.
在本發明之一實施例中，該處理單元被配置成接收一定位命令以控制該光學導攝模組朝向該屏幕上的該畫面投射該定位光跡，及接收一停止命令以控制該光學導攝模組停止朝向該屏幕上的該畫面投射該定位光跡。 In one embodiment of the present invention, the processing unit is configured to receive a positioning command to control the optical guide module to project the positioning light track toward the picture on the screen, and receive a stop command to control the optical guide The camera module stops projecting the positioning light track toward the picture on the screen.
在本發明之一實施例中，該處理單元被配置成收到該定位命令後超過一逾時時間仍未收到該停止命令，控制該光學導攝模組停止朝向該屏幕上的該畫面投射該定位光跡。 In one embodiment of the present invention, the processing unit is configured to not receive the stop command after receiving a positioning command for more than a timeout period, and to control the optical camera module to stop projecting toward the screen on the screen The positioning light trails.
在本發明之一實施例中，該屏幕被標記一中心記號，使該縱向直線光跡與該橫向直線光跡的該交會點被配置成位於該中心記號以對準該定位游標。 In one embodiment of the present invention, the screen is marked with a center mark, so that the intersection point of the longitudinal straight line trace and the lateral straight line trace is configured to be located at the center mark to align with the positioning cursor.
為達上述之目的，本發明的另一方面提供一種用於互動式電子白板之紅外攝影定位系統，包含：一光學導攝模組；一處理單元；一投影機；及一屏幕；其中，該處理單元電性連接該光學導攝模組及該投影機，該處理單元被配置成產生一畫面並控制該投影機將該畫面投影到該屏幕，該畫面被配置成具有一定位游標位於該屏幕的一中心處；及該處理單元被配置成控制該光學導攝模組朝向該屏幕上的該畫面進行一紅外攝影作業及投射一定位光跡，該定位光跡由一縱向直線光跡與一橫向直線光跡交會形成十字狀。 To achieve the above objective, another aspect of the present invention provides an infrared photography positioning system for an interactive whiteboard, including: an optical camera module; a processing unit; a projector; and a screen; wherein, the The processing unit is electrically connected to the optical camera module and the projector. The processing unit is configured to generate a picture and control the projector to project the picture to the screen. The picture is configured to have a positioning cursor on the screen A center of the; and the processing unit is configured to control the optical camera module to perform an infrared photography operation and project a positioning light track toward the picture on the screen, the positioning light track is composed of a longitudinal straight light track and a The transverse straight light traces will form a cross.
在本發明之一實施例中，該光學導攝模組設有一雷射光產生器、一紅外光攝影機、一控制器及一殼體，該雷射光產生器之至少一投射部及該紅外光攝影機之一鏡頭露出該殼體的同一平面，該控制器電性連接該雷射光產生器及該紅外光攝影機，該雷射光產生器之投射部位於該紅外光攝影機周圍，用於產生該定位光跡。 In one embodiment of the present invention, the optical camera module is provided with a laser light generator, an infrared camera, a controller and a housing, at least one projection portion of the laser light generator and the infrared camera A lens exposes the same plane of the housing, the controller is electrically connected to the laser light generator and the infrared camera, and the projection part of the laser light generator is located around the infrared camera to generate the positioning light trace .
在本發明之一實施例中，該雷射光產生器包含一縱向雷射光投射部及一橫向雷射光投射部，該縱向雷射光投射部及該橫向雷射光投射部分別沿著以該紅外光攝影機為中心的二相互垂直方向設置於該紅外光攝影機的周圍。 In one embodiment of the present invention, the laser light generator includes a longitudinal laser light projection portion and a lateral laser light projection portion, the longitudinal laser light projection portion and the lateral laser light projection portion are respectively along the infrared camera Two mutually perpendicular directions at the center are arranged around the infrared camera.
在本發明之一實施例中，該紅外光攝影機與該縱向雷射光投 射部之間具有一第一間距，該紅外光攝影機與該橫向雷射光投射部之間具有一第二間距，該第一間距與該第二間距相等。 In an embodiment of the invention, the infrared camera and the longitudinal laser light projection There is a first distance between the shooting parts, and there is a second distance between the infrared camera and the lateral laser light projection part, and the first distance is equal to the second distance.
在本發明之一實施例中，該雷射光產生器包含一個十字型雷射光投射部，該十字型雷射光投射部沿著以該紅外光攝影機為中心的一縱向方向設置。 In one embodiment of the present invention, the laser light generator includes a cross-shaped laser light projection portion, and the cross-shaped laser light projection portion is disposed along a longitudinal direction centered on the infrared camera.
在本發明之一實施例中，該光學導攝模組設有一紅外線接收器，該紅外線接收器電性連接該控制器。 In one embodiment of the invention, the optical camera module is provided with an infrared receiver, and the infrared receiver is electrically connected to the controller.
在本發明之一實施例中，該光學導攝模組設有一紅外線濾光片，該紅外線濾光片設於該紅外光攝影機的鏡頭。 In one embodiment of the present invention, the optical camera module is provided with an infrared filter, and the infrared filter is provided on the lens of the infrared camera.
為達上述之目的，本發明的另一方面提供一種光學導攝模組，包含：一雷射光產生器，具有至少一投射部；一紅外光攝影機，具有一鏡頭；一控制器，電性連接該雷射光產生器及該紅外光攝影機；及一殼體，用於設置該雷射光產生器、該紅外光攝影機及控制器；其中，該雷射光產生器之投射部及該紅外光攝影機之鏡頭露出該殼體的同一平面，該控制器電性連接該雷射光產生器及該紅外光攝影機，該雷射光產生器之投射部位於該紅外光攝影機周圍，用於產生一定位光跡，該定位光跡由一縱向直線光跡與一橫向直線光跡交會形成十字狀。 To achieve the above purpose, another aspect of the present invention provides an optical camera module including: a laser light generator with at least one projection portion; an infrared camera with a lens; a controller, electrically connected The laser light generator and the infrared light camera; and a casing for setting the laser light generator, the infrared light camera and the controller; wherein, the projection part of the laser light generator and the lens of the infrared light camera The same plane of the casing is exposed, the controller is electrically connected to the laser light generator and the infrared camera, the projection part of the laser light generator is located around the infrared camera, and is used to generate a positioning light trace, the positioning The light trace is formed by a longitudinal straight light trace and a transverse straight light trace meeting to form a cross.
在本發明之一實施例中，該雷射光產生器包含一縱向雷射光投射部及一橫向雷射光投射部，該縱向雷射光投射部及該橫向雷射光投射部分別沿著以該紅外光攝影機為中心的二相互垂直方向設置於該紅外光攝影機的周圍。 In one embodiment of the present invention, the laser light generator includes a longitudinal laser light projection portion and a lateral laser light projection portion, the longitudinal laser light projection portion and the lateral laser light projection portion are respectively along the infrared camera Two mutually perpendicular directions at the center are arranged around the infrared camera.
在本發明之一實施例中，該紅外光攝影機與該縱向雷射光投射部之間具有一第一間距，該紅外光攝影機與該橫向雷射光投射部之間具有一第二間距，該第一間距與該第二間距相等。 In one embodiment of the present invention, there is a first distance between the infrared camera and the longitudinal laser light projection portion, and a second distance between the infrared camera and the lateral laser light projection portion, the first The pitch is equal to the second pitch.
在本發明之一實施例中，該雷射光產生器包含一個十字型雷射光投射部，該十字型雷射光投射部沿著以該紅外光攝影機為中心的一縱向方向設置。 In one embodiment of the present invention, the laser light generator includes a cross-shaped laser light projection portion, and the cross-shaped laser light projection portion is disposed along a longitudinal direction centered on the infrared camera.
在本發明之一實施例中，該光學導攝模組設有一紅外線接收器，該紅外線接收器電性連接該控制器。 In one embodiment of the invention, the optical camera module is provided with an infrared receiver, and the infrared receiver is electrically connected to the controller.
在本發明之一實施例中，該光學導攝模組設有一紅外線濾光片，該紅外線濾光片設於該紅外光攝影機的鏡頭。 In one embodiment of the present invention, the optical camera module is provided with an infrared filter, and the infrared filter is provided on the lens of the infrared camera.
本發明用於互動式電子白板之紅外攝影定位方法、系統及其光學導攝模組，可利用被投射出的十字型雷射光線產生該定位光跡，使十字型雷射光線的涵蓋範圍與紅外線定位攝影機的拍攝範圍重疊，該定位光跡的一第一分布範圍小於該畫面的一第二分布範圍，該光學導攝模組可被配置成朝向遠離該屏幕的一方向移動，直到該定位光跡的第一分布範圍至少含括該畫面的第二分布範圍為止，以便進行攝影畫面的定位過程，進而提升定位便利性及精準度，可以達到簡便速效之定位效果，有利於增廣互動式電子白板的使用度。 The invention provides an infrared photography positioning method and system for an interactive electronic whiteboard and an optical guide module thereof. The projected cross-shaped laser light can be used to generate the positioning light track, so that the coverage of the cross-shaped laser light and The shooting range of the infrared positioning camera overlaps, a first distribution range of the positioning light trace is smaller than a second distribution range of the picture, the optical guide module can be configured to move in a direction away from the screen until the positioning The first distribution range of the light trace includes at least the second distribution range of the picture, so as to perform the positioning process of the photographic picture, thereby improving the positioning convenience and accuracy, and can achieve a simple and quick positioning effect, which is conducive to increasing interactive The degree of use of electronic whiteboards.
1‧‧‧光學導攝模組 1‧‧‧Optical Guide Module
11‧‧‧十字型雷射光投射部 11‧‧‧ Cross Laser Projection Department
11a‧‧‧縱向雷射光投射部 11a‧‧‧Longitudinal laser projection section
11b‧‧‧橫向雷射光投射部 11b‧‧‧Laser Laser Projection Department
12‧‧‧紅外光攝影機 12‧‧‧ Infrared camera
13‧‧‧控制器 13‧‧‧Controller
14‧‧‧紅外線接收器 14‧‧‧Infrared receiver
15‧‧‧紅外線濾光片 15‧‧‧Infrared filter
2‧‧‧處理單元 2‧‧‧Processing unit
3‧‧‧投影機 3‧‧‧Projector
A‧‧‧屏幕 A‧‧‧screen
B‧‧‧紅外線遙控光筆 B‧‧‧Infrared remote control light pen
C‧‧‧定位光跡 C‧‧‧Positioning light trails
C1‧‧‧定位光跡 C1‧‧‧ Positioning light trail
C2‧‧‧定位光跡 C2‧‧‧Positioning light trails
E‧‧‧中心點 E‧‧‧Center
L‧‧‧十字狀雷射光 L‧‧‧Cross-shaped laser light
L1‧‧‧縱向雷射光 L1‧‧‧Longitudinal laser beam
L2‧‧‧橫向雷射光 L2‧‧‧Laser laser
P‧‧‧投影畫面 P‧‧‧Projection screen
S1‧‧‧步驟 S1‧‧‧Step
S2‧‧‧步驟 S2‧‧‧Step
S3‧‧‧步驟 S3‧‧‧Step
S4‧‧‧步驟 S4‧‧‧Step
第1圖：本發明一實施例之用於互動式電子白板之紅外攝影定位系統 之使用示意圖。 Figure 1: Infrared photography positioning system for interactive electronic whiteboard according to an embodiment of the present invention The use of schematic.
第2圖：本發明第一實施例之光學導攝模組之方塊示意圖。 Figure 2: A block diagram of an optical camera module according to the first embodiment of the present invention.
第3圖：本發明第二實施例之光學導攝模組之方塊示意圖。 Fig. 3: Block diagram of an optical camera module according to a second embodiment of the invention.
第4圖：本發明一實施例之用於互動式電子白板之紅外攝影定位方法之流程示意圖。 Figure 4: A schematic flow chart of an infrared photography positioning method for an interactive whiteboard according to an embodiment of the invention.
第5圖：本發明一實施例之用於互動式電子白板之紅外攝影定位方法的十字形定位光跡的分布範圍小於畫面之示意圖。 Fig. 5: A schematic diagram of the distribution range of the cross-shaped positioning light trace of the infrared photography positioning method for the interactive electronic whiteboard according to an embodiment of the present invention is smaller than the screen.
第6圖：本發明一實施例之用於互動式電子白板之紅外攝影定位方法的十字形定位光跡的分布範圍等於(或實際上略大於)畫面之示意圖。 Fig. 6: A schematic diagram of the distribution range of the cross-shaped positioning light trace of the infrared photography positioning method for the interactive electronic whiteboard according to an embodiment of the present invention is equal to (or actually slightly larger than) the picture.
為了讓本發明之上述及其他目的、特徵、優點能更明顯易懂，下文將特舉本發明較佳實施例，並配合所附圖式，作詳細說明如下。再者，本發明所提到的方向用語，例如上、下、頂、底、前、後、左、右、內、外、側面、周圍、中央、水平、橫向、垂直、縱向、軸向、徑向、最上層或最下層等，僅是參考附加圖式的方向。因此，使用的方向用語是用以說明及理解本發明，而非用以限制本發明。 In order to make the above and other objects, features, and advantages of the present invention more comprehensible, the preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, which will be described in detail below. Furthermore, the terms of direction mentioned in the present invention, such as up, down, top, bottom, front, back, left, right, inner, outer, side, surrounding, center, horizontal, horizontal, vertical, longitudinal, axial, The radial direction, the uppermost layer or the lowermost layer, etc., are only the directions referring to the attached drawings. Therefore, the directional terminology is used to illustrate and understand the present invention, not to limit the present invention.
請參照第1圖所示，本發明一實施例之用於互動式電子白板之紅外攝影定位系統除可應用紅外光攝影技術以適用於互動式電子白板的定位用途，還可經由適當修改而適用於其他需要利用紅外光進行影像攝取及/或定位的用途。該紅外攝影定位系統可包含一光學導攝模組1、一處理單元2、一投影機3及一屏幕A，例如：該光學導攝模組1具有紅外線收發功能，該處理單元2具有資料或信號處理功能，如一電腦等，該投影機3具有畫面投影功能，如短焦投影機等，該屏幕A為可供投影成像的材質，如可為白板、布幕或牆壁等，以下舉例說明其實施例，惟不以此為限。
Please refer to FIG. 1, an infrared photography positioning system for an interactive electronic whiteboard according to an embodiment of the present invention can be applied to the positioning of the interactive electronic whiteboard in addition to applying infrared light photography technology, and can also be applied through appropriate modification For other applications that require infrared light for image capture and/or positioning. The infrared photography positioning system may include an
舉例而言，如第1圖所示，該處理單元2可電性連接該光學導攝模組1及該投影機3，例如：利用電腦通訊媒介相互通訊，如該處理單元2與光學導攝模組1可利用USB連接線相互通訊，該處理單元2與投影機3之間可利用HDMI連接線相互通訊，惟不以此為限。
For example, as shown in FIG. 1, the
如第1圖所示，該處理單元2可被配置成產生一畫面並控制該投影機3將該畫面投影到該屏幕A，該畫面被配置成具有一定位游標位於該屏幕A的一中心處。
As shown in FIG. 1, the
如第1圖所示，該處理單元2還可被配置成控制該光學導攝模組1朝向該屏幕A上的該畫面進行一紅外攝影作業及投射一定位光跡C，該定位光跡C由一縱向直線光跡與一橫向直線光跡交會形成十字狀。
As shown in FIG. 1, the
藉此，可使該定位光跡C的涵蓋範圍與紅外線拍攝範圍重疊，以便提供便於定位識別的可見光(如十字狀的定位光跡C)進行電子白板之紅外線攝影畫面的定位過程，進而提升定位便利性及精準度。 In this way, the coverage area of the positioning light trace C can be overlapped with the infrared shooting range, so as to provide visible light (such as a cross-shaped positioning light trace C) that is convenient for positioning recognition to perform the positioning process of the infrared photographic image of the electronic whiteboard, thereby improving positioning Convenience and accuracy.
應被理解的是，如第1圖所示，當該互動式電子白板的定位過程完成後，即可將該光學導攝模組1、處理單元2、投影機3及屏幕A轉用為一互動式電子白板。
It should be understood that, as shown in FIG. 1, after the positioning process of the interactive whiteboard is completed, the
附加地，如第1圖所示，該互動式電子白板還可包括一紅外線遙控光筆B，用於實現電子白板的書寫等功能，其係所屬技術領域中具有通常知識者可以理解，不再贅述於此。 In addition, as shown in FIG. 1, the interactive electronic whiteboard may also include an infrared remote control light pen B, which is used to implement functions such as writing of the electronic whiteboard, which can be understood by those with ordinary knowledge in the technical field to which it belongs, and will not be repeated Here.
舉例而言，如第2圖所示，該光學導攝模組1可設有一雷射光產生器(含投射部11a、11b)、一紅外光攝影機12、一控制器13及一殼體
(圖未標號)，例如：該雷射光產生器可為能夠產生十字狀的定位光跡的一字形或十字形雷射(如紅光)產生器。
For example, as shown in FIG. 2, the
在一實施例中，如第2圖所示，該雷射光產生器可具有至少一投射部11a、11b；該紅外光攝影機12可具有一鏡頭，用以攝取紅外影像；該控制器13可為一控制板，用於電性連接具備該投射部11a、11b之雷射光產生器之及該紅外光攝影機12，並控制其運作；該殼體(圖未標號)可依需求加以變化其構造及材質，用於設置具備該投射部11a、11b之雷射光產生器、該紅外光攝影機12及控制器13，例如：該雷射光產生器之投射部11a、11b及該紅外光攝影機12之鏡頭可露出該殼體的同一平面(如圖所示之前側面板)，該控制器13可置於該殼體之內部，該雷射光產生器之投射部11a、11b位於該紅外光攝影機12周圍，用於產生上述定位光跡(如第1圖所示之C)。
In one embodiment, as shown in FIG. 2, the laser light generator may have at least one
具體地，如第2圖所示，該雷射光產生器包含一縱向雷射光投射部11a及一橫向雷射光投射部11b，該縱向雷射光投射部11a及該橫向雷射光投射部11b分別沿著以該紅外光攝影機12為中心的二相互垂直方向設置於該紅外光攝影機12的周圍，例如：該紅外光攝影機12與該縱向雷射光投射部11a之間具有一第一間距(如0.1至5毫米)，該紅外光攝影機12與該橫向雷射光投射部11b之間具有一第二間距(如0.1至5毫米)，該第一間距與該第二間距可為相等或不相等，如果該第一間距與該第二間距相等，例如：該縱向雷射光投射部11a及該橫向雷射光投射部11b緊鄰該紅外光攝影機12，可進一步縮小該光學導攝模組1的體積。藉此，該縱向雷射光投射部11a可投射出一縱向雷射光L1，該橫向雷射光投射部11b可投射出一橫向雷射光L2，該縱向雷射光L1與橫向雷射光L2可在該紅外光攝影機12的拍攝範圍交會形成一個十字狀雷射光。
Specifically, as shown in FIG. 2, the laser light generator includes a longitudinal laser
替代地，如第3圖所示，該雷射光產生器還可包含一個十字型雷射光投射部11，該十字型雷射光投射部11可整合該縱向雷射光投射部11a與橫向雷射光投射部11b功能，該十字型雷射光投射部11沿著以該紅外光攝影機12為中心的一縱向方向設置。藉此，該十字型雷射光投射部11可在該紅外光攝影機12的拍攝範圍形成一個十字狀雷射光L。
Alternatively, as shown in FIG. 3, the laser light generator may further include a cross-shaped laser
在一實施例中，如第2及3圖所示，該光學導攝模組1還可設有一紅外線接收器14，該紅外線接收器14電性連接該控制器13，以接收38KHz載波頻率的紅外線，以便用於接收紅外線遙控光筆B產生的編碼訊號。
In one embodiment, as shown in FIGS. 2 and 3, the
在一實施例中，如第2及3圖所示，該光學導攝模組1還設有一紅外線濾光片15，該紅外線濾光片15設於該紅外光攝影機1的鏡頭，如鏡頭前側，用於濾除該紅外光攝影機1的攝影波長以外的光波，以避免攝影影像含有過多不必要的光學雜訊。
In one embodiment, as shown in FIGS. 2 and 3, the
此外，本發明的另一方面提供一種用於互動式電子白板之紅外攝影定位方法，主要應用上述互動式電子白板之紅外攝影定位系統進行定位。請一併參閱第1圖所示，該方法可包含如下步驟：提供一光學導攝模組1、一處理單元2、一投影機3及一屏幕A，該處理單元2電性連接該光學導攝模組1及該投影機3，該處理單元2可被配置成控制該投影機3將一畫面投影到該屏幕A，該畫面被配置成具有一定位游標(如滑鼠游標等，圖未繪示)位於該屏幕A的一中心處，該畫面及其定位游標可由一軟體(如一作業系統)產生。
In addition, another aspect of the present invention provides an infrared photography positioning method for an interactive electronic whiteboard, which mainly uses the infrared photography positioning system of the interactive electronic whiteboard for positioning. Please also refer to FIG. 1, the method may include the following steps: providing an
接著，控制該光學導攝模組1朝向該屏幕A上的該畫面進行一紅外攝影作業及投射一定位光跡C，例如：該光學導攝模組1可設置於該屏幕A的前方，該定位光跡C由一縱向直線光跡與一橫向直線光跡交會形成十字狀。
Then, the
接著，如第5圖所示，控制該光學導攝模組1使該定位光跡C1的一中心點E對準該定位游標，且該定位光跡C1的一第一分布範圍(例如第5圖中的該十字狀的定位光跡C1外的一矩形虛線範圍)小於該畫面P的一第二分布範圍(例如第5圖中的畫面P的四個邊界包圍形成的範圍)。
Next, as shown in FIG. 5, the
應被理解的是，上述分布範圍所指的是能將一物件(如十字形或長方形等)完全包含的一邊框的範圍，在此例中，該邊框可被選為一矩形邊框，以利比對該定位光跡C與該畫面P的大小，例如：該第一分布範圍的矩形邊框能恰好完全涵蓋該定位光跡C的多個終端(如縱向直線光跡、橫向直線光跡的二終端)，該第二分布範圍的矩形邊框能恰好完全涵蓋該畫 面P的四個邊界。 It should be understood that the above distribution range refers to a range of a frame that can completely contain an object (such as a cross or a rectangle). In this example, the frame can be selected as a rectangular frame to facilitate Comparing the sizes of the positioning light trace C and the picture P, for example, the rectangular frame of the first distribution range can exactly cover the multiple terminals of the positioning light trace C (such as the two of the longitudinal straight light trace and the transverse straight light trace Terminal), the rectangular border of the second distribution range can exactly cover the picture The four boundaries of face P.
之後，如第5及6圖所示，使該光學導攝模組1可朝向遠離該屏幕A的一方向移動，例如：該光學導攝模組1與該屏幕A之間的距離增加，以使該定位光跡C的分布範圍逐漸擴大，直到該定位光跡C2的第一分布範圍至少含括該畫面P的第二分布範圍為止(如第6圖所示)，例如：該定位光跡C2的第一分布範圍大於或等於該畫面P的第二分布範圍。以下配合圖式舉例說明上述方法實施例的實施態樣，惟不以此為限。
After that, as shown in FIGS. 5 and 6, the
舉例而言，如第4圖所示，該方法實施例可包括步驟S1至S4，在步驟S1中，當該光學導攝模組1、處理單元2、投影機3及屏幕A被配置完成後，該處理單元2可等待接收一定位命令，如由使用者按下一定位按鍵等，該按鍵可為硬體按鍵或軟體按鍵；接著，在步驟S2中，如第1圖所示，該光學導攝模組1可被視為具有十字線雷射光產生功能的紅外線接收器(以下簡稱接收器)，該屏幕A可被視為一電子白板投影之螢幕(以下簡稱螢幕或投影屏幕)，該處理單元2可被配置以控制該接收器是否發出十字線雷射光，並可進一步確認滑鼠是否位於螢幕中心，如皆為否且逾時，如距接收該定位命令的時間已經超過10秒鐘等，如十字線雷射光仍未發出及/或滑鼠仍未位於螢幕中心，則該處理單元2可等待接收一停止命令，如由使用者按下一停止按鍵等，以視為定位失敗，例如可進而停止產生十字線雷射光；另一方面，如皆為是，則在步驟S3中，該接收器可被移至投影屏幕前面的預定距離處，將十字線雷射光的交叉點對準滑鼠游標位置，如第5圖所示，使十字形的定位光跡C1的水平間距(橫向長度)及垂直間距(縱向長度)小於該屏幕A中的投影畫面P的寬度和高度，接著，可由人為或機器判斷十字形的定位光跡C1的水平線條及垂直線條的長度是否等於投影畫面的寬度和高度，如為否，可逐步將接收器向遠離投影屏幕的方向水平移動，如每次移動30公分等，並且保持十字線雷射光的交叉點E對準滑鼠游標位置(如第5及6圖所示)，直到定位光跡C2的水平線條及垂直線條的長度等於投影畫面的寬度和高度(如第6圖所示)；之後，在步驟S4中，該處理單元2可等待接收另一停止命令，如由使用者按下該停止按鍵等，以視為定位成功。
For example, as shown in FIG. 4, the method embodiment may include steps S1 to S4. In step S1, when the
在本發明之一實施例中，如第5圖所示，控制該光學導攝模組1使該定位光跡C1的一中心點E對準該定位游標，且該定位光跡C1的該第一分布範圍小於該畫面P的第二分布範圍的步驟包含：控制該光學導攝模組1使該縱向直線光跡與該橫向直線光跡的一交會點(如圖所示之E)對準該定位游標，該縱向直線光跡的一長度小於該畫面P的一高度，該橫向直線光跡的一長度小於該畫面P的一寬度。
In one embodiment of the present invention, as shown in FIG. 5, the
在本發明之一實施例中，如第6圖所示，該定位光跡C2的第一分布範圍至少含括該畫面的第二分布範圍P的步驟包含：控制該光學導攝模組1使該縱向直線光跡的該長度大於或等於該畫面P的該高度及該橫向直線光跡的該長度大於或等於該畫面P的該寬度。
In an embodiment of the present invention, as shown in FIG. 6, the first distribution range of the positioning light trace C2 includes at least the second distribution range P of the picture. The step includes: controlling the
在本發明之一實施例中，如第1圖所示，將該光學導攝模組1可朝向遠離該屏幕A的該方向移動，致使該縱向直線光跡的該長度增加及該橫向直線光跡的該長度增加。藉此，可由人為或機器觀測該縱向直線光跡、橫向直線光跡變化，以利調整定位作業。
In one embodiment of the present invention, as shown in FIG. 1, the
在本發明之一實施例中，如第1及4圖所示，該處理單元2被配置成接收一定位命令以控制該光學導攝模組1朝向該屏幕A上的該畫面P投射該定位光跡C1(如第5圖所示)，及接收一停止命令以控制該光學導攝模組1停止朝向該屏幕A上的該畫面P投射該定位光跡C2(如第6圖所示)。藉此，可以確實在要進行定位作業時才產生該十字線雷射光。
In an embodiment of the present invention, as shown in FIGS. 1 and 4, the
在本發明之一實施例中，如第1及4圖所示，該處理單元2可被配置成收到該定位命令後超過一逾時時間仍未收到該停止命令，控制該光學導攝模組1停止朝向該屏幕A上的該畫面P投射該定位光跡，即令第6圖中的C2消失。藉此，可以避免該定位光跡在定位失敗後仍持續產生，可以避免電力耗損。
In an embodiment of the present invention, as shown in FIGS. 1 and 4, the
在本發明之一實施例中，如第1圖所示，該屏幕A還可被標記一中心記號，使該縱向直線光跡與該橫向直線光跡的該交會點被配置成位於該中心記號以對準該定位游標。藉此，可以進一步輔助人為進行對準作業。 In one embodiment of the present invention, as shown in FIG. 1, the screen A may also be marked with a center mark, so that the intersection point of the vertical straight line trace and the horizontal straight line trace is configured to be located at the center mark To align the positioning cursor. In this way, it is possible to further assist the manual alignment work.
本發明上述實施例之用於互動式電子白板之紅外攝影定位 方法、系統及其光學導攝模組，可利用被投射出的十字型雷射光線產生該定位光跡，使十字型雷射光線的涵蓋範圍與紅外線定位攝影機的拍攝範圍重疊，該定位光跡的一第一分布範圍小於該畫面的一第二分布範圍，該光學導攝模組可被配置成朝向遠離該屏幕的一方向移動，直到該定位光跡的第一分布範圍至少含括該畫面的第二分布範圍為止，以便進行攝影畫面的定位過程，進而提升定位便利性及精準度，可以達到簡便速效之定位效果，有利於增廣互動式電子白板的使用度。 Infrared photography positioning for interactive electronic whiteboard according to the above embodiment of the invention Method, system and its optical guide module can use the projected cross-shaped laser light to generate the positioning light track, so that the coverage of the cross-shaped laser light and the shooting range of the infrared positioning camera overlap, the positioning light track A first distribution range of is smaller than a second distribution range of the picture, the optical camera module can be configured to move in a direction away from the screen until the first distribution range of the positioning track includes at least the picture Up to the second distribution range, in order to carry out the positioning process of the photographic picture, thereby improving the positioning convenience and accuracy, can achieve a simple and quick positioning effect, which is conducive to increasing the use of interactive electronic whiteboards.
雖然本發明已以較佳實施例揭露，然其並非用以限制本發明，任何熟習此項技藝之人士，在不脫離本發明之精神和範圍內，當可作各種更動與修飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。 Although the present invention has been disclosed in preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with this skill can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be as defined in the scope of the attached patent application.
1‧‧‧光學導攝模組 1‧‧‧Optical Guide Module
2‧‧‧處理單元 2‧‧‧Processing unit
3‧‧‧投影機 3‧‧‧Projector
A‧‧‧屏幕 A‧‧‧screen
B‧‧‧紅外線遙控光筆 B‧‧‧Infrared remote control light pen
C‧‧‧定位光跡 C‧‧‧Positioning light trails
E‧‧‧中心點 E‧‧‧Center
Claims (15)
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| TWM401185U (en) * | 2010-07-02 | 2011-04-01 | Univ Shu Te | Electronic whiteboard writing system and its laser pointer |
| US20140055354A1 (en) * | 2012-08-22 | 2014-02-27 | Everest Display Inc. | Multi-mode interactive projection system, pointing device thereof, and control method thereof |
| CN104062829A (en) * | 2010-10-28 | 2014-09-24 | 精工爱普生株式会社 | Projection type display device and control method thereof |
| TWM544043U (en) * | 2017-03-10 | 2017-06-21 | 國立屏東大學 | Interactive electronic whiteboard system |
| CN207601498U (en) * | 2017-12-28 | 2018-07-10 | 广景视睿科技（深圳）有限公司 | A kind of interactive projection device and canlestick lamp |
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| TWM401185U (en) * | 2010-07-02 | 2011-04-01 | Univ Shu Te | Electronic whiteboard writing system and its laser pointer |
| CN104062829A (en) * | 2010-10-28 | 2014-09-24 | 精工爱普生株式会社 | Projection type display device and control method thereof |
| US20140055354A1 (en) * | 2012-08-22 | 2014-02-27 | Everest Display Inc. | Multi-mode interactive projection system, pointing device thereof, and control method thereof |
| TWM544043U (en) * | 2017-03-10 | 2017-06-21 | 國立屏東大學 | Interactive electronic whiteboard system |
| CN207601498U (en) * | 2017-12-28 | 2018-07-10 | 广景视睿科技（深圳）有限公司 | A kind of interactive projection device and canlestick lamp |
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