201201090 六、發明說明： 【發明所屬之技術領域】 本發明係有關於包含虛擬鍵盤的輸入系統，而特別是指利 用視頻訊號檢測所達成之輸入方式。 【先前技術】 電腦或電信設備之虛擬鍵盤，其習知技術為以電容性或 φ 電阻性感測器來檢測手指位置按壓動作；然該虛擬鍵盤屬 接觸式，因此在衛生考量上較不適宜，且易受到灰塵或水 分的影響而產生不正確的信號。 中華民國發明專利第146530號「對電子裝置輸入資料 的方法、包含有用以儲存指令之媒體的物品、以及影像處 理系統」，係以在一表面投射一影像並檢測使用者對於該 投射影像之動作；此發明由&係、對該投射影像及使用者動201201090 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to an input system including a virtual keyboard, and particularly to an input method achieved by video signal detection. [Prior Art] A virtual keyboard of a computer or a telecommunication device has a conventional technique of detecting a finger position pressing action by a capacitive or φ resistance sensor; however, the virtual keyboard is a contact type, and thus is not suitable for hygiene considerations. It is susceptible to dust or moisture and produces an incorrect signal. The Republic of China Invention Patent No. 146530 "Method for inputting data to an electronic device, an article containing a medium for storing instructions, and an image processing system" is to project an image on a surface and detect a user's action on the projected image. This invention is performed by &, the projected image and the user
由此可見，上 ’上述習用方式仍有諸多缺失 設計’而亟待加以改良。 以致檢測錯誤。 ’實非一良善之 生的各項缺點，乃亟 ’心研究後，終於成 本案發明人鑑於上述習用方式所衍生备 思加以改良創新，並經多年苦心孤詣潛心 功研發完成本件虛擬鍵盤輸入系 201201090 本發月之目的在於改良上述先前技術⑴接觸式檢測 方式的衛生問題及受灰塵或水分影響等缺點以及⑺以 投射影像及使用者動作的綜合效果來檢測的相互遮蔽之 缺點，以提出一種創新之虛擬鍵盤輸入系統。 【發明内容】 達成上述發明目的之虛擬鍵盤輸入系統，主要係由取像 攝影機、手指掌追蹤判斷與按鍵债測模組、虛擬鍵盤與攝 影機晝面座標對照模組、虛擬鍵盤控制模組、顯示裝置所 組成;主要係以虛擬鍵盤控制模組將虛擬鍵盤顯示於顯示 裝置上，一旦由手指掌追蹤判斷與按鍵偵測模組追蹤到手 指的初始後，就可設定手指初始位置在虛擬鍵盤的適當位 置，再以手指掌的動作指示移動手指所在虛擬鍵盤的位 置’在螢幕上更動顯示虛擬鍵盤的部位，再以檢測手指掌 在該攝影機晝面位置的大小變化情形來判斷使用者是否 按壓輸入該對應鍵。 【實施方式】 本系統架構如圖-所示，主要是由取像攝影機ι〇、手 指掌追蹤判斷與按鍵谓測模，组20、虛擬鍵盤與攝影機畫 面座標對照模組30、虛擬鍵盤控制模組4〇、顯示裝置5〇 所組成；其中，當使用者將手指掌置入取像攝影機10的 201201090 取像範圍時，手指掌追蹤判斷與按鍵偵測模組2〇 一旦追 蹤到手指的初始後’就可設定手指初始位置在虛擬鍵盤的 適當位置’再以手指掌的動作指示移動手指所在虛擬鍵盤 的位置，將此位置座標傳至虛擬鍵盤與攝影機晝面座標對 照模組30 ’虛擬鍵盤與攝影機畫面座標對照模組則將 手指座標位置所對應的虛擬鍵盤鍵位代號傳送給虛擬鍵 盤控制模組40;手指掌追蹤判斷與按鍵債測模組2〇並同 #時摘測是否有按鍵的動作並將偵測結果傳給虛擬鍵盤控 制模組40;虛擬鍵盤控制模組4〇對所接收到來自虛擬鍵 盤與攝影機畫面座標對照模組3〇之最新鍵位代號，若亦 接收到來自手指掌追蹤判斷與按鍵偵測模組的按鍵訊 息，則鍵位代號即為使用者輸入之結果。虛擬鍵盤控制模 組40並且依據來自虛擬鍵盤與攝影機畫面座標對照模组 3〇的鍵位代號來控制虛擬鍵盤的顯示方式如下：若接收 到來自手指掌追蹤判斷與按鍵㈣模組2q的按鍵訊息， 示裝置5。所顯示的虛擬鍵盤該鍵位以第一類顯示 ^顯不、其他鍵位以第三類顯示類型來顯示；若未接 息二自手指掌追蹤判斷與按㈣測模組2。的按鍵訊 。1將顯不裝置50所顯示的虛擬鍵盤該鍵位 顯示類型來顯示、其他鍵位以第--類顯示類型m 類.“類型來顯" 第一類顯不類型、第三類顯示類型可為顯 不區域邊緣加實線、顯示區域邊緣加虛線 :為顯 肩不區域顏色 201201090 加深、顯示區域顏色變淺、顯 匕埤反白、顯不區域 殊顏色呈現、顯示區域以浮水印呈 ' 見、員不區域以不 體或不同粗、細呈現等之任意Μ的三種。 取像攝影機ίο可為任意之攝影機；虚擬鍵盤與攝影機 畫面座標對照模組30可以是依照虛擬鍵盤配置方式來將 攝影機畫面依適當比例切割成—對一的對應區域；顯 置5〇可為任意種類及數量之顯示器或投影機。取像攝: 機與顯示裝置位於使用者科而十 ^ 使用者對面或者下方’以使用者觀看顯 不裝置而做出按鍵動作時，取像攝影機能拍取手指動作為 原則，圖二所示為取像攝影機架設位置實施例示意圖。·"、 圖三為手指掌追蹤錢與按鍵㈣模组2Q的實施例产 程圖’手指掌追蹤判斷與按㈣測模組2〇以谓測影像晝 面中像素的色彩值與膚色的色彩值接近的區塊做為手指 掌區域，再以此區塊上緣做為指定手指目前所對應虛擬鍵 盤位置之依據’並根據手指掌擺動動作來移動顯示虛擬鍵 盤之部位；上述手指掌區$面積在連續的幾個晝面中若有 從小明I員變大後又回復到小，且這段過程#時間長約略等 於預設的按鍵過程時間長，則視為使用者有按鍵的動作， 否則即無按鍵動作；以此判斷方式，則不經意的上下左右 前後移動抖動不易誤判為有按鍵的動作。 本發明所提供之虛擬鍵盤輪入系統，與其他習用技術相 互比較時，更具有下列之優點：i.屬於非接觸式的輸入方 201201090 式’因此沒有衛生問題。2·將虛擬鍵盤之影像顯示與使用 者動作之取像分開處理，因此不會有相互遮蔽之問題。 上列詳細說明乃針對本發明之一可行實施例進行具體 說明，惟該實施例並非用以限制本發明之專利範圍，凡未 脫離本發明技藝精神所為之等效實施或變更，均應包含於 本案之專利範圍中。 綜上所述，本案不僅於技術思想上確屬創新，並具備習 •用之傳統方法所不及之上述多項功效，已充分符合新賴性 及進步性之法定發明專利要件，爰依法提出申請，懇請 貴局核准本件發明專利申請案，以勵創作，至感德便。 【圖式簡單說明】 凊參閱以下有關本發明之詳細說明及其附圖，將可進一 步瞭解本發明之技術内容及其目的功效；有關附圖為： 鲁 圖一為本發明虛擬鍵盤輸入系統之架構圖； 圖二為本發明之取像攝影機架設位置實施例示意圖； 圖二為本發明虛擬鍵盤輸入系統之手指掌追縱判斷與 按鍵偵測模組的實施例流程圖。 【主要元件符號說明】 10 :取像攝影機 20 :手指掌追蹤判斷與按鍵偵測模組 7 201201090 30 :虛擬鍵盤與攝影機畫面座標對照模組 40 :虛擬鍵盤控制模組key pad模組 50 :顯示裝置 8It can be seen that there are still many missing designs in the above-mentioned conventional methods, which need to be improved. So that the error is detected. 'It’s not a shortcoming of a good life, but after the study of the heart, finally the inventor of the cost case made improvements and innovations based on the above-mentioned methods of use, and after years of painstaking efforts to complete the virtual keyboard input system 2010201090 The purpose of this month is to improve the above-mentioned prior art (1) the sanitary problems of the contact detection method and the disadvantages such as the influence of dust or moisture, and (7) the shortcomings of mutual shielding detected by the combined effect of the projected image and the user's motion, to propose an innovation. The virtual keyboard input system. SUMMARY OF THE INVENTION The virtual keyboard input system for achieving the above object is mainly composed of an image capturing camera, a finger palm tracking judgment and a button debt testing module, a virtual keyboard and a camera kneading coordinate control module, a virtual keyboard control module, and a display. The device is composed of a virtual keyboard control module to display the virtual keyboard on the display device. Once the finger palm tracking and the button detection module track the initiality of the finger, the initial position of the finger can be set on the virtual keyboard. In the appropriate position, the position of the virtual keyboard where the finger is moved is indicated by the action of the palm of the finger. The part of the virtual keyboard is displayed on the screen, and then the size of the position of the palm of the camera is detected to determine whether the user presses the input. The corresponding key. [Embodiment] The system architecture is shown in the figure--mainly by the camera ι〇, the finger palm tracking judgment and the button pre-measurement mode, the group 20, the virtual keyboard and the camera screen coordinate control module 30, and the virtual keyboard control mode. The group 4〇 and the display device 5〇 are composed; wherein, when the user places the palm of the finger into the image capturing range of the camera 10 of the image capturing camera 10, the finger palm tracking determination and the button detecting module 2 are tracked to the finger. After the initial 'set the initial position of the finger in the appropriate position of the virtual keyboard', the position of the virtual keyboard where the finger is moved is indicated by the action of the palm of the finger, and the position coordinate is transmitted to the virtual keyboard and the camera coordinate control module 30 'virtual The keyboard and camera screen coordinate control module transmits the virtual keyboard key code corresponding to the finger coordinate position to the virtual keyboard control module 40; when the finger tracking judgment and the button debt measurement module are the same as the #, it is checked whether there is The action of the button is transmitted to the virtual keyboard control module 40; the virtual keyboard control module 4 receives the picture from the virtual keyboard and the camera The key coordinate code of the face coordinate control module 3〇, if the button information from the finger palm tracking judgment and the button detection module is also received, the key code is the result of the user input. The virtual keyboard control module 40 controls the virtual keyboard according to the key code from the virtual keyboard and the camera screen coordinate control module 3〇 as follows: if the button information from the finger palm tracking judgment and the button (4) module 2q is received , display device 5. The displayed virtual keyboard key is displayed in the first category. The other keys are displayed in the third type of display type. If the information is not received, the finger tracking is judged and the (four) test module 2 is pressed. Button press. 1 will display the virtual keyboard displayed by the device 50. The key display type is displayed, and the other keys are displayed in the first class type m class. "Type to display", the first type of display type, the third type of display type A solid line may be added to the edge of the display area, and a dotted line may be added to the edge of the display area: the depth of the display area is not deepened, the color of the display area is darkened, the color of the display area is lightened, the color is highlighted, the color is not displayed, and the display area is watermarked. 'Seeing, not arranging, arranging, arranging, arranging, arranging, arranging, arranging, arranging, arranging, arranging, arranging, arranging Cut the camera screen into the corresponding area of the right one according to the appropriate ratio; display 5 〇 can be any type and number of displays or projectors. Take the image: the machine and display device are located in the user section and the user is opposite Below, when the user presses the display device to make a button action, the image capture camera can take the finger action as a principle, and the second embodiment shows the image capture frame position. Intention.·", Figure 3 is the finger palm tracking money and button (4) module 2Q embodiment production process diagram 'finger palm tracking judgment and press (four) test module 2 谓 to measure the color value and skin color of the pixel in the image The block whose color value is close to is used as the palm area, and then the upper edge of the block is used as the basis of the virtual keyboard position corresponding to the designated finger, and the part of the virtual keyboard is moved according to the swinging motion of the palm; the above finger palm If the area of the area is increased from Xiaoming I to a small number in several consecutive faces, and the process time is approximately equal to the preset button process time, it is considered that the user has a button. Action, otherwise there is no button action; in this way, the inadvertent movement of the up, down, left, and right movements is not easy to be mistaken for the action of having a button. The virtual keyboard wheeling system provided by the present invention has more comparison with other conventional technologies. The following advantages: i. is a non-contact input type 201201090 type 'There is no health problem. 2. Separate the image display of the virtual keyboard from the image of the user action The above detailed description is not intended to limit the scope of the invention, and is not intended to limit the scope of the invention. Equivalent implementation or change shall be included in the patent scope of this case. In summary, this case is not only innovative in terms of technical thinking, but also has many of the above-mentioned functions that are not in the traditional methods of learning and use. Responsible and progressive statutory invention patent requirements, 提出 apply in accordance with the law, and ask your bureau to approve the invention patent application, to encourage creation, to the sense of convenience. [Simplified description] 凊 Refer to the following detailed description of the invention And the accompanying drawings, the technical contents of the present invention and the functions thereof can be further understood; the related drawings are: Lutu 1 is the architecture diagram of the virtual keyboard input system of the present invention; FIG. 2 is a flow chart of an embodiment of a finger-carrying judgment and a button detection module of a virtual keyboard input system according to the present invention; Fig. [Main component symbol description] 10: Image camera 20: Finger palm tracking judgment and button detection module 7 201201090 30: Virtual keyboard and camera screen coordinate control module 40: Virtual keyboard control module key pad module 50: Display Device 8