201218757 六、發明說明： 【發明所屬之技術領威】 [0001]本發明涉及一種多媒體間報指示系統及方法。 【先前技術·】 [0002]目前用戶進行多媒體簡報，大都使用雷射筆指示需要簡 報的内容，依照美國FDA標準’雷射筆的安全等級皆在等 級2以上，眼睛直視易造成視網膜永久性傷害。若在多媒 體簡報的過程中，多媒體簡報者使用不當’將雷射光束 射入觀眾眼中；或平時雷射筆存放位置不佳’被小孩取 得玩耍，難避會有種種意外發生。 【發明内容】 [00〇3] 鑒於以上内容，有必要提供一種多媒體簡報指示系統及 方法，能夠安全有效地進行多媒體簡報指示。 [0004] [0005] 099136963 一種多媒體簡報指示系統，運行於投影機令，該投影機 包括紅外線攝影機和光源’所述多媒體簡報指示系統包 括：控制模組，用於當有紅外線投影到螢幕上時，控制 紅外線攝影機拍攝螢幕上的紅哥線投影區域；計算模組 ’用於計算該紅外線投影區域的中心點座標值；轉換模 組’用於將上述紅外線投影區域的中心點座標值轉換為 對應於投影機解析度的座標值；記錄模組，用於在榮幕 上查找到該轉換後的座標值所對應的像素點的位置.及 投射模組， 點的位置處 用於使用光源投射高亮度光於榮幕上該像素 —種多媒體簡報指示方法’應用於投影機，該投影機勺 括紅外線攝影機和光源’該方法包括如下步 .a 哪' · s有紅 表單編號A0101 第4頁/共20頁 °992〇64515-〇 201218757 [0006] ❹ [0007] 〇 [0008] 外線投影到螢幕上時，控制紅外線攝影機拍攝螢幕上的 紅外線投影區域；計算該紅外線投影區域的中心點座標 值；將上述紅外線投影區域的中心點座標值轉換為對應 於投影機解析度的座標值；在螢幕上查找到該轉換後的 座標值所對應的像素點的位置；及使用光源投射高亮度 光於螢幕上該像素點的位置處。 相較於習知技術，所述多媒體簡報指示系統及方法，將 紅外線攝影機整合到投影機中，利用投影機中的紅外線 攝影機來拍攝該紅外線投射器所投射的紅外線，並用高 亮度光源來代替紅外線投射器所指向的位置，可以安全 有效地進行多媒體簡報指示的工作。 【實施方式】 如圖1所示’係本發明多媒體簡報指示系統較佳實施例之 運行環境圖。該多媒體簡報指示系統1〇運行於投影機1中 ，該投影機1包括紅外線攝影機U、投影鏡頭12及光源13201218757 VI. Description of the Invention: [Technical Leadership of the Invention] [0001] The present invention relates to a multimedia inter-signal indication system and method. [Previous Technology·] [0002] At present, users use multimedia presentations to indicate the need for briefings. According to the US FDA standard, the safety level of laser pens is above level 2. Eyes are easy to cause permanent damage to the retina. . In the process of multimedia presentation, the multimedia briefer uses improperly to shoot the laser beam into the viewer's eye; or the laser pointer is not in a good position to be played by the child, and there are various accidents that can be avoided. SUMMARY OF THE INVENTION [003] In view of the above, it is necessary to provide a multimedia presentation indication system and method that can perform multimedia presentation instructions safely and efficiently. [0004] [0005] 099136963 A multimedia presentation indicator system, operating on a projector, the projector comprising an infrared camera and a light source. The multimedia presentation indicator system includes: a control module for when infrared light is projected onto the screen Controlling the infrared camera to capture the red line projection area on the screen; the calculation module 'for calculating the center point coordinate value of the infrared projection area; and the conversion module' for converting the center point coordinate value of the infrared projection area to the corresponding a coordinate value of the resolution of the projector; a recording module for finding the position of the pixel corresponding to the converted coordinate value on the screen; and the projection module, where the position of the point is used to project the light using the light source Brightness light on the glory of the pixel - a multimedia presentation indication method 'applies to the projector, the projector includes an infrared camera and a light source' The method includes the following steps. a Which s has a red form number A0101 page 4 / Total 20 pages °992〇64515-〇201218757 [0006] ❹ [0007] 〇[0008] Control infrared camera shooting when the outside line is projected onto the screen An infrared projection area on the screen; calculating a center point coordinate value of the infrared projection area; converting a center point coordinate value of the infrared projection area to a coordinate value corresponding to the projector resolution; and finding the converted coordinate on the screen The position of the pixel corresponding to the value; and using the light source to project high-brightness light at the pixel on the screen. Compared with the prior art, the multimedia presentation instruction system and method integrate an infrared camera into a projector, use an infrared camera in the projector to capture infrared rays projected by the infrared projector, and replace the infrared light with a high-intensity light source. The location pointed to by the projector can safely and effectively perform the work of the multimedia presentation instructions. [Embodiment] FIG. 1 is a diagram showing an operating environment of a preferred embodiment of the multimedia presentation indicator system of the present invention. The multimedia presentation indicator system 1 is operated in a projector 1 , which includes an infrared camera U, a projection lens 12 and a light source 13
I 。該投影鏡頭12用於將影像投影到螢幕2上。 所述紅外線攝影機11包括正常工作模式和紅外線工作模 式。在正常工作模式時，該紅外線攝影機η用於當螢幕2 上有影像播放時，即時拍攝從紅外線攝影機u到螢幕2之 間物體的影像。所拍攝的影像範圍4並不是螢幕2的範圍 ，一般而言，所拍攝的影像範圍4小於螢幕2的範圍，如 圖4所示。當該紅外線攝影機丨丨工作於紅外線工作模式時 ，用於監測螢幕2上投影區域内的紅外線。該螢幕2上的 紅外線是紅外線投射器3發射的紅外線，本較佳實施例中 ，该紅外線投射器3為手持紅外線投射器，如紅外線手電 099136963 表單編號A0101 第5頁/共20頁 0992064515-0 201218757 筒。 [0009] 該紅外線攝影機11包括紅外線鏡頭11 0，該紅外線鏡頭 110上安裝有濾光片1100，用於控制一定波長的紅外線進 入該紅外線鏡頭110，本較佳實施例中，該一定波長是指 在用戶使用的紅外線投射器3發射的紅外線的波長範圍内 。所述投影鏡頭12上安裝有濾光片120，用於防止紅外線 攝影機11的紅外線投影到螢幕2上。 [0010] 如圖2所示，係圖1中多媒體簡報指示系統10之功能模組 圖。所述多媒體簡報指示系統10包括：控制模組1 00、計 算模組101、轉換模組102、記錄模組103及投射模組104 。所述模組是具有特定功能的軟體程式段，該軟體存儲 於電腦可讀存儲介質或其他存儲設備，可被電腦或其他 包含處理器的計算裝置執行，從而完成本發明中的多媒 體簡報指示的作業流程。 [0011] 控制模組100用於控制紅外線攝影機11工作於正常工作模 式，該紅外線攝影機11拍攝所述螢幕2上的影像範圍，該 控制模組100計算該影像範圍4的大小，該大小是指組成 該影像範圍4的所有像素點的個數。 [0012] 該控制模組100還用於控制該紅外線攝影機11工作於紅外 線工作模式，該紅外線攝影機11監測螢幕2上是否有紅外 線投影。當有紅外線投射到螢幕2上時，該控制模組100 還用於計算該紅外線投射到螢幕2上的紅外線投影區域大 小。 [0013] 計算模組101用於計算該紅外線投影區域的中心點座標值 099136963 表單編號A0101 第6頁/共20頁 0992064515-0 201218757 [0014] ❹ [0015] G [0016] 099136963 。當用戶開啟紅外線投射器3並指向螢幕2上時，該紅外 線投=器3發射的紅外線在螢幕2上的投影為一定的形狀 本貝施例中，5亥形狀為圓或者橢圓，該中心點座標值 是指該圓或者橢圓中心點在螢幕2上的像素點的座標值， 如圖5所示’⑴’ γι)為該中心點座標值。 轉換換組1G2料將上述紅外線投雜域的巾心點座標值 轉換為對應於投影機丨解析度的座標值。具體而言，如圖 6所示，假設紅外線攝影機11拍攝的紅外線投影區域為Μ 個像素點，而其中投影鏡頭12在螢幕2上的影像範圍4的 大小為’即該影像範圍4包括W*H個像素點，影像範圍 4距離紅外線投影區域的左下角的長^▲個像素點、寬為b 個像素點’投影機1的解析度為個像素點。轉換的計 算公式為：X2=[(n - A)/W]*M，Y2 = [(Y1 - 。 其中，（XI，Yl)為所拍攝的紅外線投影區域的中心點 座標值，（X2，Y2)為對應於投影機1解析度的座標值。 記錄模組103用於記錄該轉換後的座標值，並在螢幕2上 查找到該轉換後的座標值對應像素點的位置。 投射模組104用於使用光源13投射高亮度光於螢幕2上該 像素點的位置處。本較佳實施例中’該投射模組丨〇4還控 制該光源13投射到該像素點週圍的像素點上’即擴大投 射的範圍，以讓用戶清楚看見該光源13所指向的範圍。 所述光源13投射的高亮度光為紅色，所述投射的範圍可 以為擴大到距離所述像素點一定個數的像素點的範圍， 該一定個數的像素點不宜過多，會導致指示範圍過大， 本實施例中，該一定個數為一個像素點。 第7頁/共20頁 表單編St Α0101 0992064515-0 201218757 [0017] 如圖3所示，係本發明多媒體簡報指示方法較佳實施例之 作業流程圖。 [0018] 步驟S30，控制模組1 0 0控制紅外線攝影機11工作於正常 工作模式，該紅外線攝影機11拍攝投影機1在螢幕2上投 影的影像範圍4。 [0019] 步驟S31，控制模組100計算該影像範圍4的大小，該大小 是指組成該影像範圍4的所有像素點的個數。 [0020] 步驟S32，控制模組100控制紅外線攝影機11工作於紅外 線工作模式，該紅外線攝影機11監測螢幕2上是否有紅外 線投影。 [0021] 步驟S33，開啟紅外線投射器3，並指向螢幕2。 [0022] 步驟S34，該控制模組100計算紅外線投射器3在螢幕2上 投射紅外線形成的紅外線投影區域大小。 [0023] 步驟S35，計算模組101計算該紅外線投影區域的中心點 座標值。當用戶開啟紅外線投射器3並指向螢幕2上時， 該紅外線投射器3發射的紅外線在螢幕2上的投影為一定 的形狀，本實施例中，該形狀為圓或者橢圓，該中心點 座標值是指該圓或者橢圓中心點在螢幕2上的像素點的座 標值，如圖5所示，（XI，Y1)為該中心點座標值。 [0024] 步驟S36，轉換模組102將上述紅外線投影區域的中心點 座標值轉換為對應於投影機1解析度的座標值。具體而言 ，如圖6所示，假設紅外線攝影機11拍攝的紅外線投影區 域為Μ個像素點，而其中投影鏡頭12在螢幕2上的影像範 099136963 表單編號Α0101 第8頁/共20頁 0992064515-0 201218757 圍4的大小為W*H，即該影像範圍4包括_個像素點 像範圍4距離紅外線投影區域的左下角的長μ個像素/ '寬為Β個像素點’投影機！的解析度為謂個像素點1 換的计算公式為：Χ2=[(χι _ A)/W]*M，γ2 = [ (γι — B)/H] N其中，（xi’yj)為所拍攝的紅外線投影區 域的中心點座標值’（Χ2，Υ2)為對應於投影機1解析度 的座標值。 [0025] Ο [0026] Ο [0027] [0028] 099136963 步驟S37，記錄模組1〇3記錄該轉換後的座標值，並在螢 幕2上查找到該轉換後的座標隹對應像素點的位置處。 步驟S38，投射模組1〇4控制光源13投射高亮度光於螢幕 2上該像素點的位置。本較佳.實施例中.，:該投.射模組1 〇4 還控制該光源13投射到該像素點週圍的像素點上，即擴 大投射的範圍，以讓用戶清楚看見該光源13所指向的範 圍。所述光源13投射的高亮度光為紅色，所述投射的範 圍可以為擴大到距離所述像素點一定個數的像素點的範 圍，該一定個數的俸素點不宜過多，會導致指示範圍過 大，本實施例中，該一定個數為一個像素點^ 最後所應說明的是，以上實施例僅用以說明本發明的技 術方案而非限制，儘管參照以上較佳實施例對本發明進 行了詳細說明，本領域的普通技術人員應當理解，可以 對本發明的技術方案進行修改或等同替換，而不脫離本 發明技術方案的精神和範圍。 【圖式簡單說明】 圖1係本發明多媒體簡報指示系統較佳實施例之運行環境 圖。 表單編號A0101 第9頁/共20頁 0992064515-0 201218757 [0029] [0030] [0031] [0032] [0033] [0034] [0035] [0036] [0037] [0038] [0039] [0040] [0041] [0042] [0043] [0044] [0045] 099136963 圖2係圖1中多媒體簡報指示系統10之功能模組圖。 圖3係本發明多媒體簡報指示方法較佳實施例之作業流程 圖。 圖4係本發明投影機投影到螢幕上之影像範圍示意圖。 圖5係本發明螢幕上的紅外線投影區域的中心點座標值示 意圖。 圖6係本發明中轉換紅外線投影區域的中心點座標值的示 意圖。 【主要元件符號說明】 投影機：1 多媒體簡報指示系統：10 紅外線攝影機：11 紅外線鏡頭：110 濾光片：1100 投影鏡頭：12 濾光片：120 光源：13 螢幕：2 紅外線投射器：3 影像範圍：4 控制模組：100 表單編號A0101 第10頁/共20頁 0992064515-0 101 201218757 [0046] 計算模組 [0047] 轉換模組 [0048] 記錄模組 [0049] 投射模組 102 103 104I. The projection lens 12 is used to project an image onto the screen 2. The infrared camera 11 includes a normal operation mode and an infrared operation mode. In the normal operation mode, the infrared camera η is used to instantly capture an image of an object from the infrared camera u to the screen 2 when there is an image on the screen 2. The captured image range 4 is not the range of the screen 2, and in general, the captured image range 4 is smaller than the range of the screen 2, as shown in FIG. When the infrared camera is operated in the infrared operation mode, it is used to monitor infrared rays in the projection area on the screen 2. The infrared ray on the screen 2 is the infrared ray emitted by the infrared ray projector 3. In the preferred embodiment, the infrared ray projector 3 is a hand held infrared projector, such as an infrared flashlight 099136963 Form No. A0101 Page 5 / Total 20 Page 0992064515-0 201218757 tube. The infrared camera 11 includes an infrared lens 110. The infrared lens 110 is mounted with a filter 1100 for controlling infrared rays of a certain wavelength to enter the infrared lens 110. In the preferred embodiment, the certain wavelength refers to It is within the wavelength range of the infrared rays emitted by the infrared projector 3 used by the user. A filter 120 is mounted on the projection lens 12 for preventing infrared rays of the infrared camera 11 from being projected onto the screen 2. [0010] As shown in FIG. 2, it is a functional module diagram of the multimedia presentation indicator system 10 of FIG. The multimedia presentation indicator system 10 includes a control module 100, a calculation module 101, a conversion module 102, a recording module 103, and a projection module 104. The module is a software program segment having a specific function, and the software is stored in a computer readable storage medium or other storage device, and can be executed by a computer or other computing device including the processor, thereby completing the multimedia presentation indication in the present invention. Work flow. [0011] The control module 100 is configured to control the infrared camera 11 to operate in a normal working mode, the infrared camera 11 captures the image range on the screen 2, and the control module 100 calculates the size of the image range 4, the size refers to The number of all pixels that make up the image range 4. [0012] The control module 100 is further configured to control the infrared camera 11 to operate in an infrared working mode, and the infrared camera 11 monitors whether there is infrared projection on the screen 2. The control module 100 is also used to calculate the size of the infrared projection area projected onto the screen 2 when infrared rays are projected onto the screen 2. [0013] The calculation module 101 is configured to calculate a central point coordinate value of the infrared projection area. 099136963 Form No. A0101 Page 6 of 20 0992064515-0 201218757 [0014] G [0016] 099136963. When the user turns on the infrared projector 3 and points to the screen 2, the projection of the infrared ray emitted by the infrared ray emitter 3 on the screen 2 has a certain shape. In this example, the shape of the 5 hai is a circle or an ellipse, and the center point is The coordinate value refers to the coordinate value of the pixel point of the circle or ellipse center point on the screen 2, as shown in Fig. 5, '(1)' γι) is the coordinate value of the center point. The conversion group 1G2 material converts the center point coordinate value of the infrared injection field into a coordinate value corresponding to the resolution of the projector. Specifically, as shown in FIG. 6, it is assumed that the infrared projection area captured by the infrared camera 11 is 像素 pixels, and the size of the image range 4 of the projection lens 12 on the screen 2 is 'that is, the image range 4 includes W*. H pixels, the image range 4 is longer than the lower left corner of the infrared projection area, and the width is b pixels. The resolution of the projector 1 is one pixel. The conversion formula is: X2=[(n - A)/W]*M, Y2 = [(Y1 - . where (XI, Yl) is the coordinate value of the center point of the captured infrared projection area, (X2, Y2) is a coordinate value corresponding to the resolution of the projector 1. The recording module 103 is configured to record the converted coordinate value, and find the position of the pixel corresponding to the converted coordinate value on the screen 2. 104 is used to use the light source 13 to project high-intensity light at the position of the pixel on the screen 2. In the preferred embodiment, the projection module 丨〇4 also controls the light source 13 to be projected onto the pixel points around the pixel. 'Expanding the range of the projection so that the user can clearly see the range pointed by the light source 13. The high-intensity light projected by the light source 13 is red, and the range of the projection may be expanded to a certain number from the pixel. The range of the pixel points, the certain number of pixels should not be too much, which may cause the indication range to be too large. In this embodiment, the certain number is one pixel. The 7th/total 20 pages of the form is Α0101 0992064515-0 201218757 [0017] As shown in FIG. 3, it is a multimedia of the present invention. [0018] Step S30, the control module 100 controls the infrared camera 11 to operate in a normal working mode, and the infrared camera 11 captures an image range projected by the projector 1 on the screen 2. [0019] Step S31, the control module 100 calculates the size of the image range 4, which is the number of all the pixels that make up the image range 4. [0020] Step S32, the control module 100 controls the infrared camera. 11 operates in an infrared working mode, and the infrared camera 11 monitors whether there is an infrared projection on the screen 2. [0021] Step S33, the infrared projector 3 is turned on and directed to the screen 2. [0022] Step S34, the control module 100 calculates infrared rays. The projector 3 projects the size of the infrared projection area formed by the infrared rays on the screen 2. [0023] Step S35, the calculation module 101 calculates the center point coordinate value of the infrared projection area. When the user turns on the infrared projector 3 and points to the screen 2 The projection of the infrared ray emitted by the infrared projector 3 on the screen 2 has a certain shape. In this embodiment, the shape is a circle or Circle, the center point coordinate value refers to the coordinate value of the pixel point of the circle or ellipse center point on the screen 2, as shown in Fig. 5, (XI, Y1) is the center point coordinate value. [0024] Step S36, The conversion module 102 converts the center point coordinate value of the infrared projection area into a coordinate value corresponding to the resolution of the projector 1. Specifically, as shown in FIG. 6, it is assumed that the infrared projection area captured by the infrared camera 11 is one pixel. Point, and the image of the projection lens 12 on the screen 2 is 099136963 Form No. 1010101 Page 8 / Total 20 Page 0992064515-0 201218757 The size of the circumference 4 is W*H, that is, the image range 4 includes _ pixel image range 4 The distance μ pixels from the lower left corner of the infrared projection area / 'width is one pixel point' projector! The resolution of the calculation is that the pixel 1 is converted as: Χ2=[(χι _ A)/W]*M, γ2 = [ (γι — B)/H] N where (xi'yj) is The center point coordinate value '(Χ2, Υ2) of the captured infrared projection area is a coordinate value corresponding to the resolution of the projector 1. [0028] [0028] 099136963 Step S37, the recording module 1〇3 records the converted coordinate value, and finds the position of the corresponding pixel of the converted coordinate 在 on the screen 2. At the office. In step S38, the projection module 1〇4 controls the light source 13 to project the position of the high-brightness light on the pixel 2 on the screen 2. In the preferred embodiment, the projection module 1 〇4 also controls the light source 13 to be projected onto the pixel points around the pixel point, that is, the range of the projection is enlarged, so that the user can clearly see the light source 13 The range of points. The high-intensity light projected by the light source 13 is red, and the range of the projection may be a range that is expanded to a certain number of pixel points from the pixel point, and the certain number of pixel points should not be too much, which may result in an indication range. Too large, in the present embodiment, the certain number is one pixel. Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not limiting, although the present invention has been described with reference to the above preferred embodiments. The detailed description of the technical solutions of the present invention may be made without departing from the spirit and scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a diagram showing the operating environment of a preferred embodiment of the multimedia presentation indicator system of the present invention. Form No. A0101 Page 9 / Total 20 Page 0992064515-0 201218757 [0030] [0040] [0034] [0040] [0040] [0040] [0040] [0044] FIG. 2 is a functional block diagram of the multimedia presentation indicator system 10 of FIG. 1. Figure 3 is a flow chart showing the operation of the preferred embodiment of the multimedia presentation instructing method of the present invention. Figure 4 is a schematic illustration of the image range projected onto the screen by the projector of the present invention. Figure 5 is a graphical representation of the center point coordinate values of the infrared projection area on the screen of the present invention. Figure 6 is a schematic illustration of the center point coordinate value of the converted infrared projection area in the present invention. [Main component symbol description] Projector: 1 Multimedia presentation system: 10 Infrared camera: 11 Infrared lens: 110 Filter: 1100 Projection lens: 12 Filter: 120 Light source: 13 Screen: 2 Infrared projector: 3 images Range: 4 Control Module: 100 Form No. A0101 Page 10 / Total 20 Page 0992064515-0 101 201218757 [0046] Computing Module [0047] Conversion Module [0048] Recording Module [0049] Projection Module 102 103 104
099136963 表單編號A0101 第11頁/共20頁 0992064515-0099136963 Form No. A0101 Page 11 of 20 0992064515-0