201026030 九、發明說明： ' 【發明所屬之技術領域】 ‘ 本發明涉及一種應用於移動終端的圖像拍攝系統及方 法，尤其關於一種應用於移動終端的自拍系統及方法。 【先前技術】 為了獲得理想的拍攝效果，數位相機或是數位攝像機 都配置有取景器。透過取景器，用戶能夠看到要拍攝的畫 面，從而能夠根據需要進行構景。目前的手機大多提供相 ® 機功能，在一定程度上滿足了用戶隨時隨地進行拍攝的需 求。隨著時代的進步與發展，人們越來越勇於表現自己， 分享自身的經歷，利用手機的相機功能進行自拍的需求日 益增加。然而，大多數手機往往關注於像素的提升，而很 少考慮用戶自拍的需求。大多數手機一般都不提供自拍者 專用的取景器。在沒有自拍者專用的取景器的情況下，用 戶把握不好自己在晝面中的位置，容易偏離了畫面甚至脫 ❾ 離了晝面。 【發明内容】 鑒於以上内容，有必要提供一種應用於移動終端的自 拍系統及方法，能夠識別用戶臉部在圖像中的位置並提示 用戶。 一種自拍系統，應用於移動終端，該系統包括：設定 模組，用於設定自拍參數，所述自拍參數包括開始計時時 間、結束計時時間和定位區域；計時模組，用於當開始計 時時間到達時開始計時，並判斷是否到達結束計時時間； 201026030 識別模組，用於當未到達結束計時時間時，控制移動終端 " 的相機拍攝一張用於識別臉部位置的圖像，並根據該圖像 ' 判斷臉部是否在設定的定位區域内；提示模組，用於根據 識別模組的判斷結果，向用戶發出提示；及拍攝模組，用 於當結束計時時間到達時，控制移動終端的相機拍攝一張 正式的圖像。 一種自拍方法，應用於移動終端，該方法包括步驟： 設定自拍參數，所述自拍參數包括開始計時時間、結束計 時時間和定位區域；當開始計時時間到達時開始計時；當 未到達結束計時時間時，控制移動終端的相機拍攝一張用 於識別臉部位置的圖像，根據該圖像判斷臉部是否在設定 的定位區域内，並根據判斷結果向用戶發出提示；及當結 束計時時間到達時，控制移動終端的相機拍攝一張正式的 圖像。 本發明能夠識別自拍用戶的臉部在圖像中的位置並提 φ 示用戶，從而便於用戶調整到適當的位置，提高了自拍的 滿意度。 【實施方式】 參閱圖1所示，是本發明自拍系統較佳實施例的運行 環境圖。所述自拍系統10運行於移動終端1中，用於判斷 用戶的臉部是否在設定的定位區域内並提示用戶。所述移 動終端1可以是手機，還可以是其他提供拍照功能的電子 設備。所述移動終端1還包括相機20及螢幕30。相機20 用於拍攝圖像，該圖像可以是彩色圖像，也可以是黑白圖 6 201026030 像。螢幕30用於顯示拍攝的圖像。 ' 參閱圖2所示，是本發明自拍系統10較佳實施例的功 • 能模組圖。該自拍系統10包括設定模組100、計時模組 101、識別模組102、提示模組103及拍攝模組104。 所述設定模組100用於設定自拍參數。在本實施例 中，所述自拍參數包括開始計時時間、結束計時時間和定 位區域。定位區域是用戶的臉部需要在圖像中出現的區 域。預先將螢幕30劃分為多個區域，例如9個區域或是4 ® 個區域，根據用戶的需要設定臉部需要出現的區域。參閱 圖4所示，是將螢幕30劃分為9個區域的示意圖。圖中， 標號1-9分別表示劃分的各個區域，其中的任意一個區域 可以設定為定位區域，例如，設定標號為1的區域為定位 區域。 所述計時模組101用於當開始計時時間到達時開始計 時，並判斷是否到達結束計時時間。 Φ 所述識別模組102用於當未到達結束計時時間時，控 制相機20拍攝一張用於識別臉部位置的圖像，並根據該圖 像判斷臉部是否在設定的定位區域内。在本實施例中，從 拍攝的圖像中提取臉部特徵，根據提取的臉部特徵判斷臉 部是否在設定的定位區域内。所述的臉部特徵可以是眼 睛，還可以是鼻子、嘴等。例如，以眼睛作為臉部特徵， 根據眼睛的位置判斷臉部是否在設定的定位區域内。若眼 睛在定位區域内，則臉部在定位區域内；否則，若眼睛不 在定位區域内，則臉部不在定位區域内。相機20拍攝的圖 201026030 像疋數位圖像，數位圖像通常以點陣圖（bitmap)的形式 .表不。點陣圖是一個矩形點陣，其中每一點稱為像素 (pixel)。一幅mxn大小的圖像由船^個亮度不等的像 素組成。對於彩色圖像，圖像中的每—像素具有―個r郎 值’即每-像素由紅、綠、藍三個分量共同決定。對於黑 白圖像’圖像_的每一像素具有一個灰度值。根據臉部特 徵的特點’可以從拍攝的圖像中提取出臉部特徵。例如， ❿眼睛是臉中上部兩個對稱的黑色區域，鼻子是臉中部兩個 近距離的黑色區域’嘴是臉下部一個較大的黑色區域。如 果疋彩色圖像，可以分析圖像的RGB值提取出臉部特徵。 如果是黑白圖像，可以分析圖像的灰度值提取出臉部特徵。 所述提示模組103用於根據識別模組1〇2的判斷結 果，向用戶發出提示。例如，當臉部不在設定的定位區域 内時，透過語音提醒用戶偏離了圖像；當臉部在設定的定 位區域内時，透過語音提醒用戶位置正確。 ❿ 所述拍攝模組104用於當結束計時時間到達時，控制 相機20拍攝一張正式的圖像。 參閱圖3所示’是本發明自拍方法較佳實施例的流程 圖。 步驟S301，設定模組1〇〇設定自拍參數。在本實施例 中，所述自拍參數包括開始計時時間、結束計時時間和定 位區域。定位區域是用戶的臉部需要在圖像中出現的區 域。預先將螢幕30劃分為多個區域，例如9個區域或是4 個區域’根據用戶的需要設定臉部需要出現的區域。參閱 201026030 圖4所示，是將螢幕3〇劃分為 Μ 1 9八則矣-查,v 為個區域的示意圖。圖中， :一 ：1 的各個區域，其令的任意-個區域 ^ U㈣域’例如’狀標號為ί的區域為定位 區域。 計時模組101開 步驟S302,當開始計時時間到達時 始計時。 步驟S303’計時模組1〇1判斷是否到達結束計時時間。 φ 纟驟S304 #未到達結束計時時間，則識別模組1〇2 控制相機2G拍攝-張用於識別臉部位置的圖像，根據該圖 像判斷臉部是否在設定的定位區域内。在本實施例中，從 拍攝的圖像中提取臉部特徵，根據提取的臉部特徵判斷臉 部疋否在3又疋的疋位區域内。所述的臉部特徵可以是眼 睛’還可以疋鼻子、嘴等。例如，以眼睛作為臉部特徵， 根據眼睛的位置判斷臉部是否在設定的定位區域内。若眼 睛在定位區域内，則臉部在定位區域内；否則，若眼睛不 〇在定位區域内，則臉部不在定位區域内。相機20拍攝的圈 像是數位圖像，數位圖像通常以點陣圖（bhmap)的形式 表示。點陣圖是一個矩形點陣，其中每一點稱為像素 (pixel)。一幅mxn大小的圖像，由皿仙個亮度不等的像 素組成。對於彩色圖像，圖像中的每一像素具有一個Rgb 值，即每一像素由紅、綠、藍三個分量共同決定。對於黑 白圖像’圖像中的每一像素具有一個灰度值。根據臉部特 徵的特點，可以從拍攝的圖像中提取出臉部特徵。例如， 眼睛是臉中上部兩個對稱的黑色區域，鼻子是臉中部兩個 201026030 近距離的黑色區域，嘴是臉下部—個較大的黑色區域。如 .果是彩色®像’可以分㈣像的RGB值齡㈣部特徵。 如果是黑自圖像’可以分·像的灰度值提取諸部特徵。 步驟S305 ’提示模、板1〇3根據識別模組1〇2的判斷結 果’向用戶發出提示，返回步驟S3〇3e例如，若臉部不在 設定的定位區域内，則透過語音提醒用戶偏離了圖像；若 臉部在汉疋的疋位區域内，則透過語音提醒用戶位置正確。 步驟S306’若到達結束計時時間，則拍攝模組1〇4控 制相機20拍攝一張正式的圖像。 綜上所述，本發明符合發明專利要件，爰依法提出專 利申凊。惟，以上所述者僅為本發明之較佳實施例，本發 明之範圍並不以上述實施例為限，舉凡熟悉本案技藝之人 士援依本發明之精神所作之等效修飾或變化，皆應涵蓋於 以下申請專利範圍内。 【圖式簡單說明】 _ 圖1係本發明自拍系統較佳實施例的運行環境圖。 圖2係本發明自拍系統較佳實施例的功能模組圖。 圖3係本發明自拍方法較佳實施例的流程圖。 圖4係將f幕劃分好舰域的示意圖。 【主要元件符號說明】 移動終端 ^ 1 自拍系統 相機 30 10 201026030 設定模組 100 計時模組 101 識別模組 102 提示模組 103 拍攝模組 104 設定自拍參數 S301 開始計時 S302 是否到達結束計時時間 S303201026030 IX. Description of the invention: 'The technical field to which the invention pertains>> The present invention relates to an image capturing system and method applied to a mobile terminal, and more particularly to a self-timer system and method applied to a mobile terminal. [Prior Art] In order to obtain an ideal shooting effect, a digital camera or a digital camera is equipped with a viewfinder. Through the viewfinder, the user can see the picture to be shot so that the scene can be constructed as needed. Most of the current mobile phones provide the functions of the camera, which to some extent meet the needs of users to shoot anywhere, anytime. With the progress and development of the times, people are more and more brave in expressing themselves, sharing their experiences, and the demand for self-timer using the camera function of mobile phones is increasing. However, most mobile phones tend to focus on pixel enhancements, and rarely consider the need for user self-portraits. Most mobile phones generally do not provide a self-timer's dedicated viewfinder. In the case where there is no viewfinder dedicated to the self-timer, the user can not easily grasp the position in the face, and it is easy to deviate from the screen or even get rid of the face. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a self-timer system and method for a mobile terminal that can recognize the location of a user's face in an image and prompt the user. A self-timer system is applied to a mobile terminal, the system includes: a setting module, configured to set a self-timer parameter, the self-timer parameter includes a start time, an end time, and a positioning area; and a timing module is used to start when the time is started When the time starts, it is judged whether the end time is reached; 201026030 The identification module is configured to: when the end time is not reached, the camera controlling the mobile terminal" takes an image for recognizing the position of the face, and according to the The image 'determines whether the face is in the set positioning area; the prompting module is configured to issue a prompt to the user according to the judgment result of the identification module; and the shooting module is configured to control the mobile terminal when the ending timing time arrives The camera takes a formal image. A self-timer method applied to a mobile terminal, the method comprising the steps of: setting a self-timer parameter, the self-timer parameter including a start time, an end time, and a positioning area; when the start time reaches, the time starts; when the end time is not reached The camera controlling the mobile terminal captures an image for recognizing the position of the face, determines whether the face is within the set positioning area according to the image, and issues a prompt to the user according to the judgment result; and when the end timing time arrives , the camera that controls the mobile terminal takes a formal image. The present invention is capable of recognizing the position of the face of the self-timer user in the image and presenting the user, thereby facilitating the user to adjust to an appropriate position and improving the satisfaction of the self-timer. [Embodiment] Referring to Figure 1, there is shown an operational environment diagram of a preferred embodiment of the self-timer system of the present invention. The self-timer system 10 operates in the mobile terminal 1 for determining whether the user's face is within the set positioning area and prompting the user. The mobile terminal 1 can be a mobile phone, and can also be other electronic devices that provide a camera function. The mobile terminal 1 further includes a camera 20 and a screen 30. The camera 20 is used to capture an image, which may be a color image or a black and white image 6 201026030 image. The screen 30 is used to display the captured image. Referring to Figure 2, there is shown a functional module diagram of a preferred embodiment of the self-timer system 10 of the present invention. The self-timer system 10 includes a setting module 100, a timing module 101, an identification module 102, a prompting module 103, and a shooting module 104. The setting module 100 is configured to set a self-timer parameter. In this embodiment, the self-timer parameters include a start time, an end time, and a positioning area. The location area is the area where the user's face needs to appear in the image. The screen 30 is divided into a plurality of areas in advance, for example, 9 areas or 4 ® areas, and the area where the face needs to appear is set according to the user's needs. Referring to Fig. 4, a schematic diagram of dividing the screen 30 into nine regions is shown. In the figure, reference numerals 1-9 respectively indicate divided regions, and any one of them may be set as a positioning region. For example, an area marked with 1 is a positioning region. The timing module 101 is configured to start timing when the start timing time arrives, and determine whether the end timing time is reached. Φ The identification module 102 is configured to, when the end timing time is not reached, the control camera 20 captures an image for recognizing the position of the face, and determines whether the face is within the set positioning area based on the image. In the present embodiment, the facial features are extracted from the captured images, and it is judged based on the extracted facial features whether or not the face is within the set positioning region. The facial features may be the eyes, the nose, the mouth, and the like. For example, using the eye as a facial feature, it is determined whether the face is within the set positioning area based on the position of the eye. If the eye is in the positioning area, the face is in the positioning area; otherwise, if the eye is not in the positioning area, the face is not in the positioning area. The picture taken by the camera 20 201026030 is like a digital image, and the digital image is usually in the form of a bitmap. A bitmap is a rectangular lattice where each point is called a pixel. An image of mxn size consists of a ship of pixels of varying brightness. For a color image, each pixel in the image has a "r Lang value", that is, each pixel is determined by three components of red, green, and blue. There is one gray value for each pixel of the black and white image 'image_. According to the characteristics of the facial features, facial features can be extracted from the captured images. For example, rubbing the eyes is the two symmetrical black areas in the upper part of the face, and the nose is the two black areas in the middle of the face. The mouth is a large black area in the lower part of the face. If you are coloring an image, you can analyze the RGB values of the image to extract facial features. If it is a black and white image, the gray value of the image can be analyzed to extract the facial features. The prompting module 103 is configured to issue a prompt to the user according to the judgment result of the identification module 1〇2. For example, when the face is not in the set positioning area, the user is reminded to deviate from the image through the voice; when the face is in the set positioning area, the user is reminded by the voice to be in the correct position.拍摄 The shooting module 104 is configured to control the camera 20 to take a formal image when the end timing time arrives. Referring to Figure 3, there is shown a flow diagram of a preferred embodiment of the self-timer method of the present invention. In step S301, the setting module 1 sets the self-timer parameter. In this embodiment, the self-timer parameters include a start time, an end time, and a positioning area. The location area is the area where the user's face needs to appear in the image. The screen 30 is divided into a plurality of areas in advance, for example, 9 areas or 4 areas. The area where the face needs to appear is set according to the needs of the user. See 201026030, Figure 4, is a schematic diagram of dividing the screen 3〇 into Μ 1 9 8 矣-check, v is an area. In the figure, each region of a 1:1, an arbitrary region of the order ^ U (four) domain ', for example, an area marked with ί is a positioning region. The chronograph module 101 is opened in step S302, and starts counting when the start timing time arrives. In step S303', the timing module 101 determines whether or not the end timing is reached. φ S S304# When the end time is not reached, the recognition module 1〇2 controls the camera 2G to take an image for identifying the face position, and determines whether the face is within the set positioning area based on the image. In the present embodiment, facial features are extracted from the captured images, and it is judged based on the extracted facial features whether or not the face is in the 疋 疋 。 region. The facial features may be the eye's and may also lick the nose, mouth, and the like. For example, using the eye as a facial feature, it is determined whether the face is within the set positioning area based on the position of the eye. If the eye is in the positioning area, the face is in the positioning area; otherwise, if the eye is not in the positioning area, the face is not in the positioning area. The circle image captured by the camera 20 is a digital image, and the digital image is usually expressed in the form of a dot map (bhmap). A bitmap is a rectangular lattice where each point is called a pixel. An image of mxn size consists of pixels of varying brightness. For a color image, each pixel in the image has an Rgb value, that is, each pixel is determined by three components of red, green, and blue. There is one gray value for each pixel in the black and white image' image. According to the characteristics of the facial features, facial features can be extracted from the captured images. For example, the eye is the two symmetrical black areas in the upper part of the face, the nose is the black area of the close part of the 201026030 in the middle of the face, and the mouth is the lower part of the face - a large black area. If the color is a color® image, the RGB age (fourth) feature of the image can be divided into four. If it is a black self image, the grayscale values of the image can be extracted to extract the features. In step S305, the prompting mode and the board 1〇3 send a prompt to the user according to the determination result of the identification module 1〇2, and return to step S3〇3e, for example, if the face is not in the set positioning area, the user is deviated by voice. Image; if the face is in the squat area of the scorpion, the user is reminded by the voice that the position is correct. In step S306', when the end time is reached, the shooting module 1〇4 controls the camera 20 to take a formal image. In summary, the present invention complies with the requirements of the invention patent, and proposes a patent application according to law. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a diagram showing the operating environment of a preferred embodiment of the self-timer system of the present invention. 2 is a functional block diagram of a preferred embodiment of the self-timer system of the present invention. 3 is a flow chart of a preferred embodiment of the self-timer method of the present invention. Figure 4 is a schematic diagram of dividing the f-screen into a good domain. [Main component symbol description] Mobile terminal ^ 1 Self-timer camera Camera 30 10 201026030 Setting module 100 Timing module 101 Identification module 102 Prompt module 103 Shooting module 104 Setting self-timer parameters S301 Starting timing S302 Whether to reach the end timing time S303
拍攝用於識別臉部位置的圖像，判斷臉部是否在定位 區域内 S304 根據判斷結果，向用戶發出提示 S305 拍攝正式的圖像 S306Shooting an image for recognizing the position of the face, and determining whether the face is in the positioning area. S304. Prompting to the user according to the judgment result. S305. Taking a formal image. S306
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