200846818 九、發明說明： 【發明所屬之技術領域】 本發明涉及相機模組的測試技術，尤其是一種相機模 組的影像測試系統及方法。 ' 【先前技術】 對相機模組的影像測試包括暗角（Shading)、色彩 (Color )灰)¾ ( Gray )及解析（Res〇iuti〇n )等測試項目。 通常情況下，各測試項目在其對應的測試工站中進行測 試。所述測試工站包括：電腦，測試治具及燈箱等。其中， k箱中包括光源及測試圖表。待測試的相機模組安裝到測 試治具上，透過移動測試治具調節相機模組的焦距，對測 试圖表成像，並由電腦中相應的測試程式對該測試項目進 行測試。 按照傳統的影像測試方法，對相機模組的暗角、色彩、 灰階及解析等測試項目進行測試時，每一個測試項目都需 要一個對應的测試工站，每個測試工站大同小異，其區別 在於對應的測試圖表不同，及根據測試圖表的大小，其燈 柏的大小及測试治具的位置也有所不同。例如，在對暗角 進行測試時，其測試圖表是一張白紙，透過調節測試治具 的位置對該張白紙成像而偵測相機模組是否產生暗角；在 對色彩進行測試時，其測試圖表中至少包括幾種不同顏色 的區域，例如包括白、黃、青、綠、紫、紅及藍七種顏色 的區域。 在各個測試工站對其相應的測試項目進行測試時，其 200846818 操作&式也大致相$ ’步驟包括：⑴安裝相機模組至測 忒治具，（2)將相機模組透過一個信號轉換裝置連接到電 腦上；（3 )調整光源的亮度及測試治具至測試圖表的距離； (4)開啟影像測量程式；（5)對測試項目進行測試。 因此，利用傳統的影像測試方法對相機模組進行測試 時存在如下問題： (1) 每一個測試項目都需要單獨進行测試，嚴重浪費測 試工時； (2) 當測試圖表較大時，需要的燈箱也比較大，而且為 了使測試圖表完全成像，測試治具需要距離測試圖表很 遠，造成測試需要的空間較大。 【發明内容】 ^鑒於以上内容，有必要提出一種相機模組的影像測試 系統及方法，其對相機模組的測試項目進行整合測試，有 助於縮短測試工時，進一步的，採用豎直的測試方法，可 以減少測試空間。 一種相機模組的影像測試系統，該系統包括電腦及測 試治具。所述測試治具上安裝有待測的相機模組，及用於 將相機核組拍攝並輸出的影像晝面信號轉換為電腦可識別 的影像晝面is號的信號轉換裝置。其中，所述電腦包括： 區域分割模組，用於將所述電腦可以識別的影像晝面分割 成多個測試區域；影像測試模組，用於根據上述分割的測 试區域’對各測試區域的測試項目進行測試；及運算判斷 模組，用於分別判斷在各個測試區域中的各個測試項目的 200846818 .測试值是否超過其對應的預定的規範值。 進一步的，該系統還包括一個測試圖表，用於供待測 ‘的相機模組成像。該測試圖表放置於測試治具的上方，圖 ‘ ^中包括暗㈣試目，色彩測試圖，灰階測試圖及解析測 #式 。 #-種相顧組的影像賴方法，其湘電腦對待測相 $模、卫拍攝到的影像畫面進行測試。該方法包括：設備安 裝的步驟；將相機模組拍攝到的影像畫面信號轉換為電腦 •可以識別的影像晝面信號的步驟；將電腦可以識別的影像 ▲晝面信號傳送至電腦中的步驟；將影像晝面分割成多個測 试區域的步驟；根據上述分割的測試區域，對各測試區域 的測4項目分別進行測試的步驟；及分別判斷在各個測試 區，中的各個測試項目的測試值是否超過其對應的預定的 規範值的步驟。 進一步的，所述設備安裝的步驟包括：將待測的相機 鲁模組安裝到一個測試治具上，並透過一個信號轉換裝置盘 電腦相連接；將一張測試圖表放置在測試治具的上方；及 開啟待測相機模組’使制相機模組對所賴試圖表成 像。其中，所述的測試圖表中包括：暗角測試圖，色彩測 試圖’灰階測試圖及解析測試圖。 …相較于習知技術，本發明所提供的相機模組的影像測 4系統及方法利用-張整合的測試圖表，將暗角、色彩、 灰階及解析等測試項目進行整合测試，有效的減少了測試 工時’進-步的’採料直測試的方法有效的減少了測試 200846818 空間。 【實施方式] 奋a參閱圖1所示，是本發明相機模組的影像測試系統較佳 實施2的系統架構圖。該影像測試系統主要包括電腦1 =測武治具2。测試治具2用於安裝待測的相機模組其上 β又置有供相機模組3安裝的安裝孔及安裝孔邊緣設置扣件 十"八）所述扣件用於將待測的相機模組3穩定的固 文衣孔上。測試治具2上還安裝有信號轉換裝置 可=:待測相機模組3輸出的影像畫面信號轉換為電腦丄 個用於遠^像畫面信號形式。所述信號轉換I置4包括一 號轉換的4:=::二接至:’於信 出槔42。所、+、币 月及個用於連接電腦1的信號輸 的影像書^=㈣4G主制於接收相機模組3傳送過來 送過來的;所述信號處理晶片41主要用於將上述傳 號形式·^ 信號轉換為電腦可以識別的影像晝面信 信號傳信號輸出埠42主制於將轉換後的影像晝面 述信號輪出Γ11中。對應電腦1的信號埠（圖中未示），所 類型的緣。、427以採用USB璋類型，或1EEEl394等其他 相連接，所述仏號輸出琿42利用信號線與電腦1的信號埠 進將轉換後的影像畫面信號傳送到電腦1中。 勻等原因p、為了避免因外界光環境變化或者光照不均 放置於〜·對相機模組3的測試效果，可以將測試治具2 燈管，、^個f暗的測試空間内，該空間的中間偏上方安裝 以提供待測相機模組3穩定、均勻的光照。在該空 200846818 間的最上方放置-張測試圖表，並使該測試圖表在相機模 組3的成像範圍之内’使待測的相機模組3對該測試圖表成 像。 傳統上，所述電腦1、測試治具2及測試圖表位於水平 平面上，#測試®表較大時’為了使賴圖表完全成像， 需要透過移動測試治具2的位置而改變相機模組㈣焦距， 造成需要的測試空間較大。本實施例採用豎直的測 法’即測試治具2與測試圖表在測試空間的豎直平面上 放置，可以有效的節省測試空間。 仃 == 轉’是树_賴_影像職“較佳 =Λ 1的功能模組圖。本發明所稱的各模組是電 細1中元成特定功能的各個程式段，比程式本身更適 的執行過程’因此本發卿體的“ 斤2〇^1主要包括：區域分割模組1G ’影像測試模組 n:、，運算判斷模組12。所述影像測試模組11包括：暗角 測》式核組11G，色彩測試模組m，灰階測 1 析測試模組113。 &胖 所述區域分割模組10用於將電腦1可以識別的影像書 面分割成多個測舛广丄 两刎豕旦 色彩、灰階及解Γ 本發明較佳實施例採用將暗角、 測試圖表的方^試圖表合成ϋ®3所示的整合的 將該測試料分^1®3所域分賴組1〇用於 綱於解析㈣個測試區域，區域⑽於暗角測試，區 、J $，區域C用於色彩測試，及區域d用於灰階 200846818 測試。 、 所述影像測試模組11用於根據區域为告彳拉組1 〇分割的 測試區域，對各個測試區域的測試項目進行測試。所述測 試項目包括：暗角測試、色彩測試、灰階測試及解析測試。 具體地： 所述暗角測試模組110用於測試所述暗角測試區域a中 多個預定測試區域的免度值。 所述色彩測試模組111用於測試所述色彩測試區域c中200846818 IX. Description of the Invention: [Technical Field] The present invention relates to a test technique for a camera module, and more particularly to an image test system and method for a camera module. [Prior Art] Image testing of the camera module includes shading, color gray, 3⁄4 (Gray), and analysis (Res〇iuti〇n). Typically, each test item is tested in its corresponding test station. The test station includes: a computer, a test fixture, and a light box. Among them, the k box includes a light source and a test chart. The camera module to be tested is mounted on the test fixture, the focal length of the camera module is adjusted by moving the test fixture, the test chart is imaged, and the test item is tested by a corresponding test program in the computer. According to the traditional image test method, when testing the test items such as vignetting, color, grayscale and analysis of the camera module, each test project needs a corresponding test station, and each test station is similar. The difference is that the corresponding test chart is different, and depending on the size of the test chart, the size of the lamp cypress and the position of the test fixture are also different. For example, when testing a vignetting corner, the test chart is a piece of white paper. The white paper is imaged by adjusting the position of the test fixture to detect whether the camera module produces a vignetting angle; when testing the color, the test is performed. The chart includes at least several areas of different colors, such as areas of seven colors including white, yellow, cyan, green, purple, red, and blue. When testing the corresponding test items at each test station, the 200846818 operation & also approximates the $' steps including: (1) installing the camera module to the test fixture, and (2) passing the camera module through a signal. The conversion device is connected to the computer; (3) adjusting the brightness of the light source and the distance from the test fixture to the test chart; (4) turning on the image measurement program; and (5) testing the test item. Therefore, when using the traditional image test method to test the camera module, the following problems exist: (1) Each test item needs to be tested separately, which seriously wastes test man-hours; (2) When the test chart is large, it needs The light box is also large, and in order to fully image the test chart, the test fixture needs to be far from the test chart, resulting in a large space for the test. SUMMARY OF THE INVENTION In view of the above, it is necessary to propose an image testing system and method for a camera module, which integrates test tests on camera modules, which helps to shorten test man-hours, and further, adopts vertical Test methods can reduce test space. An image testing system for a camera module, the system comprising a computer and a test fixture. The test fixture is equipped with a camera module to be tested, and a signal conversion device for converting the image plane signal captured and output by the camera core group into a computer-recognizable image plane is number. The computer includes: an area dividing module, configured to divide the image plane recognized by the computer into a plurality of test areas; and an image testing module, configured to: according to the divided test area 'for each test area The test item is tested; and the operation judgment module is configured to respectively determine 200846818 of each test item in each test area. Whether the test value exceeds its corresponding predetermined specification value. Further, the system also includes a test chart for imaging the camera module to be tested. The test chart is placed above the test fixture. The figure ‘ ^ includes the dark (four) test, the color test chart, the gray scale test chart and the analytical test type. #-种相顾Group's image-based method, the Hunan computer to test the image of the film, the image captured by the camera. The method comprises: a step of installing the device; converting the image signal signal captured by the camera module into a computer: a step of recognizing the image kneading signal; and transmitting the image of the image recognizable by the computer to the computer; The step of dividing the image into a plurality of test areas; performing the test steps of the test items in each test area according to the divided test areas; and separately determining the test of each test item in each test area The step of whether the value exceeds its corresponding predetermined specification value. Further, the step of installing the device comprises: installing the camera module to be tested onto a test fixture, and connecting through a signal conversion device disk; placing a test chart above the test fixture And open the camera module to be tested 'to make the camera module image the desired test table. Among them, the test chart includes: a vignetting test chart, a color test attempting a 'gray scale test chart and an analysis test chart. Compared with the prior art, the image measuring system and method of the camera module provided by the present invention utilizes an integrated test chart to integrate test items such as vignetting, color, grayscale and analysis, and is effective. The method of reducing the test-time 'in-step' mining straight test effectively reduced the test 200846818 space. [Embodiment] FIG. 1 is a system architecture diagram of a preferred embodiment 2 of an image test system of a camera module of the present invention. The image test system mainly includes a computer 1 = a test fixture 2. The test fixture 2 is used to install the camera module to be tested, and the β is placed with a mounting hole for mounting the camera module 3 and a mounting hole edge is provided. The fastener is used for the test to be tested. The camera module 3 is stabilized on the fixed clothes hole. The test fixture 2 is also equipped with a signal conversion device. =: The image picture signal output by the camera module 3 to be tested is converted into a computer image for the remote image signal form. The signal conversion I is set to 4 including the first conversion of 4:=:: two to: 'in the letter out 42. The video book of the signal transmission of the computer, and the video signal of the computer 1 is transmitted to the receiving camera module 3; the signal processing chip 41 is mainly used for the above-mentioned signal form. ·^ The signal is converted into a computer-recognizable image. The signal transmission signal output 埠42 is mainly used to turn the converted image into a signal. Corresponding to the signal 埠 of the computer 1 (not shown), the type of edge. The 427 is connected to the computer 1 by using a USB port type or other connection such as 1EEEl394, and the signal output port 42 transmits the converted image picture signal by the signal line and the signal of the computer 1. Reasons for uniformity, p, in order to avoid the external light environment change or uneven illumination placed on the test effect of the camera module 3, the test fixture 2 lamp, the ^ dark test space, the space The middle of the upper portion is installed to provide stable and uniform illumination of the camera module 3 to be tested. A test chart is placed at the top of the space between 200846818 and the test chart is within the imaging range of the camera module 3, causing the camera module 3 to be tested to image the test chart. Traditionally, the computer 1, the test fixture 2, and the test chart are on a horizontal plane. When the #test® table is large, in order to fully image the ray diagram, it is necessary to change the camera module by moving the position of the test fixture 2 (4) The focal length, resulting in a larger test space. In this embodiment, the vertical test method, that is, the test jig 2 and the test chart are placed on the vertical plane of the test space, can effectively save the test space.仃== Turn to 'is a tree _ _ _ image job "better = Λ 1 function module diagram. The various modules referred to in the present invention are the various modules of the special function of the electric thin 1 more than the program itself Appropriate execution process 'Therefore, the "2" module of the present invention mainly includes: area segmentation module 1G 'image test module n:, and operation judgment module 12. The image testing module 11 includes: a vignetting type core group 11G, a color testing module m, and a gray level measuring and analyzing module 113. & The area segmentation module 10 is used to divide the image recognizable by the computer 1 into a plurality of images, a gray scale and a solution. The preferred embodiment of the present invention adopts a vignetting angle, The square of the test chart is attempted to synthesize the integrated product shown in ϋ®3. The test material is divided into groups of 1 and 3, which are used to analyze (four) test areas, and the area (10) is tested in the vignetting area. , J $, area C is used for color testing, and area d is used for grayscale 200846818 testing. The image testing module 11 is configured to test the test items of each test area according to the test area divided by the area. The test items include: vignetting test, color test, gray scale test and analytical test. Specifically, the vignetting test module 110 is configured to test the exemption values of the plurality of predetermined test areas in the vignetting test area a. The color test module 111 is configured to test the color test area c
多個預定測試區域的顏色值。 所述灰階測試模組112用於測試所述灰階測試區域d中 多個預定測試區域的灰階值。 所述解析測試模組113用於測試所述解析測試區域b中 多個預定測誠區域的解析值。 所述蓬算判斷模組12用於分別判斷在各個測試區域 中，各個測試項目的測試值（亮度值或者顏色值等）是否 超過其對應的預定的規範值。具體地說，所述運算判斷模 組12對比所述暗角測試模組110在暗角測試區域a中測試的 多個亮度值中預定亮度值間的差異，並判斷該差異是否超 過預定的亮度值的規範值；對比色彩測試模組ηι在色彩測 試區域ct測試的多個顏色值，判斷該多個顏色值是否分別 在其預疋的顏色值的規範值範圍之内；對比所述灰階測試 板、.且112在灰卩6 K區域dt^試的多個 多個灰階值是否分別右1益—认如 内；及對比所述解析二、，灰階值的規範值範圍之 斤]4拉組113在解析測試區域b中測試 11 200846818 的多個解析值，並判斷該多個解析值是否分別在其預定的 解析值的規範值範圍之内。 ^ 參閱圖4所示，是本發明相機模組的影像測試方法較佳 、 實施方式的實施流程圖。所述的相機模組的影像测試方法 包括如下步驟： 步驟S10，設備的安裝步驟，包括：將待測相機模組3 安裝到測試治具2上，並透過信號轉換裝置4連接到電腦1 上，將圖3所示的測試圖表放置於测試治具2的上方，開啟 肇 待測相機模組3 ’使其對測試圖表成像。 步驟S11，信號處理晶片41將相機模組3拍攝到的測試 圖表的影像晝面信號轉換為電腦1可以識別的影像晝面信 號形式。 步驟S12,信號輸出埠42透過信號線將轉換後的影像晝 面信號傳送至電腦1中。 步驟S13,區域分割模組10將上述影像畫面分割成多個 測試區域。即將圖3中的測試圖表分割成用於暗角測試的暗 — 角测試區域a，用於解析測試的解析測試區域b，用於色彩 測試的色彩測試區域c，及用於灰階測試的灰階測試區域 d。影像測試模組11根據上述分割的測試區域，對各個測試 區域的測試項目進行測試，所述測試項目為暗角測試、色 彩測試、灰階測試及解析測試。具體包括： 步驟S14，暗角測試模組110測試所述暗角測試區域a 中多個預定測試區域的亮度值； 步驟S15，色彩測試模組111測試所述色彩測試區域c 12 200846818 _ 中多個預定測試區域的顏色值； 、 步驟S16，灰階測試模組112測試所述灰階測試區域4 - 中多個預定測試區域的灰階值；及 - 轉如，解析測試模組113測試所述解析測試區域b 中多個預定測試區域的解析值。 步驟S18，運算判斷模組12分別判斷在各個測試區域 中，測試的多個測試值（亮度值或者顏色值等）是否超過 其對應的預定的規範值。具體地說’所述運算判斷模組12 • 對比所述暗角測試模組110在暗角測試區域a中測試的多個 党度值中預定党度值間的差異，並判斷該差異是否超過預 定的亮度值的規範值；對比色彩測試模組lu在色彩測試區 域c中測試的多個顏色值，判斷該多個顏色值是否分別在其 預定的顏色值的規範值範圍之内；對比所述灰階測試模組 112在灰階測試區域#測試的多個灰階值，並判斷該多個 灰階值是否分別在其預定的灰階值的規範值範圍之内；及 對比所述解析測試模組113在解析測試區域b中測試的多個 解析值f判斷4多個解析值是否分別在其預定的解析值 的規範值範圍之内。 具體地，對於步驟S14,請參閲圖巧所示，是從圖3中的 /貝J。式圖表刀㈣出來的暗角測試區域a的測試區域分佈圖。所 逃暗角測試區域a為—白色區域。本實施例所述的暗角測試 區域a中的多個預定測試區域包括五個第—測試區域 al〜a5，及四個第二測試區域sl〜s4。所述五個第…則試區 域al〜a5为佈於整個冽試圖表的四個角落及中心，所述四個 13 200846818 第二測試區域sl〜s4分別位於四個角落的第一測試區域内。 所述暗角測試模組110測試所述第一測試區域al〜a5的 亮度值A1〜A5,及所述第二測試區域si〜S4的亮度值S1〜S4。 八—對於步驟S15,請參閱圖6所示，是從圖3中的測試圖表 分割出來的色彩測試區域c的測試區域分佈圖。本實施例的 色彩，試區域。由多種不同顏色的區域組成，本實施例中由 =、黃、青、綠、紫、紅及藍七種顏色的區域組成。本實 化例所述的色彩測試區域c中的多個予員定測試區域包括七 個測試區域，分別為在每一種顏色的區域内選擇的一個矩 者正方形的測試區域。選擇矩形或者正方形的測試區 =疋為了防止某一顏色區域中的某一圖元出現顏色誤差而 〜曰测试結果。當然，根據測試用戶的喜好，也可以選擇 一個圓形或者菱形等其他形狀的測試區域，而並不限於本 實施例。 所述色彩測試模組111測試每一預定測試區域的顏色 值即測試每一預定測試區域中每一個圖元的R ( red )，G (green)，b (blue)值，再根據每一預定測試區域的所有 圖元的R，G，β值計算出該每一預定測試區域的平均R，G， 6值。其中，所述的r，g，B是色光的三原色，根據這三 種顏色可以調處其他各種顏色，所述R，G , B的值都在 〇 255之間。在本實施例中，所述色彩測式模組[根據平 均值計算公式可以得到7組平均r，G，B值，即（Rwhite，The color value of multiple predetermined test areas. The grayscale test module 112 is configured to test grayscale values of a plurality of predetermined test regions in the grayscale test region d. The analysis test module 113 is configured to test the resolution values of the plurality of predetermined test areas in the analysis test area b. The accommodating judgment module 12 is configured to respectively determine whether the test value (luminance value or color value, etc.) of each test item exceeds its corresponding predetermined specification value in each test area. Specifically, the operation determining module 12 compares the difference between the predetermined brightness values among the plurality of brightness values tested by the vignetting test module 110 in the vignetting test area a, and determines whether the difference exceeds a predetermined brightness. a specification value of the value; comparing a plurality of color values tested by the color test module ηι in the color test area ct, determining whether the plurality of color values are within a specification value range of the pre-existing color value; comparing the gray scale The test board, and 112, in the ash 6 K area dt ^ test a plurality of gray scale values respectively whether the right 1 benefit - recognized as; and compared to the analysis 2, the gray value of the norm range of the value The 4 pull group 113 tests a plurality of parsed values of 11 200846818 in the parsing test area b, and determines whether the plurality of parsed values are within the specification value range of its predetermined parsing value, respectively. Referring to Figure 4, there is shown a flow chart of an embodiment of the image testing method of the camera module of the present invention. The image testing method of the camera module includes the following steps: Step S10, the installation step of the device includes: installing the camera module 3 to be tested onto the test fixture 2, and connecting to the computer through the signal conversion device 4 Above, the test chart shown in FIG. 3 is placed above the test fixture 2, and the camera module 3 to be tested is opened to image the test chart. In step S11, the signal processing chip 41 converts the image side signal of the test chart captured by the camera module 3 into an image face signal which can be recognized by the computer 1. In step S12, the signal output port 42 transmits the converted image signal to the computer 1 through the signal line. In step S13, the area dividing module 10 divides the video picture into a plurality of test areas. The test chart in Fig. 3 is divided into a dark-angle test area a for the vignetting test, an analytical test area b for the analytical test, a color test area c for the color test, and a gray test for the gray scale test. Gray scale test area d. The image testing module 11 tests the test items of the respective test areas according to the divided test areas, and the test items are a vignetting test, a color test, a gray scale test, and an analytical test. Specifically, the method includes: Step S14, the vignetting test module 110 tests the brightness values of the plurality of predetermined test areas in the vignetting test area a; in step S15, the color test module 111 tests the color test area c 12 200846818 _ a color value of the predetermined test area; and step S16, the grayscale test module 112 tests the grayscale values of the plurality of predetermined test areas in the grayscale test area 4 - and - as in the analysis test module 113 The resolution values of the plurality of predetermined test areas in the test area b are analyzed. In step S18, the operation judging module 12 judges whether the plurality of test values (luminance values or color values, etc.) tested in each test area exceed their corresponding predetermined specification values. Specifically, the operation judging module 12 • compares the difference between the predetermined party value among the plurality of party value values tested by the vignetting test module 110 in the vignetting test area a, and determines whether the difference exceeds a predetermined value of the predetermined brightness value; comparing the plurality of color values tested by the color test module lu in the color test area c, determining whether the plurality of color values are within the specification value range of the predetermined color value, respectively; The gray scale test module 112 tests a plurality of gray scale values in the gray scale test area #, and determines whether the plurality of gray scale values are within a specification value range of the predetermined gray scale value respectively; and compares the parsing The test module 113 determines, in the analysis test area b, the plurality of analysis values f whether the four or more analysis values are within the specification value range of the predetermined analysis value. Specifically, for step S14, please refer to FIG. 3, which is from FIG. Test chart distribution of the vignetting test area a from the chart knife (4). The escaped corner test area a is a white area. The plurality of predetermined test areas in the vignetting test area a of the present embodiment include five first test areas a1 to a5, and four second test areas sl1 to s4. The five test areas a1 to a5 are arranged in four corners and a center of the entire 冽 冽 冽 , , , , , 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 . The vignetting test module 110 tests the luminance values A1 to A5 of the first test areas a1 to a5 and the luminance values S1 to S4 of the second test areas si to S4. Eight—For step S15, referring to Fig. 6, is a test area distribution map of the color test area c divided from the test chart in Fig. 3. The color of this embodiment, the test area. It is composed of a plurality of regions of different colors, and is composed of regions of seven colors of =, yellow, cyan, green, purple, red, and blue in this embodiment. The plurality of predetermined test areas in the color test area c described in this embodiment includes seven test areas, respectively, a test square of a square square selected in the area of each color. Select a rectangular or square test area = 疋 In order to prevent color errors in a certain element in a certain color area, ~ test results. Of course, depending on the preference of the test user, a test area of other shapes such as a circle or a diamond may be selected, and is not limited to the embodiment. The color test module 111 tests the color value of each predetermined test area, that is, tests the R ( red ), G (green), and b (blue) values of each primitive in each predetermined test area, and then according to each predetermined The R, G, and β values of all primitives of the test area calculate the average R, G, and 6 values for each predetermined test area. Wherein, the r, g, and B are the three primary colors of the colored light, and the other colors can be adjusted according to the three colors, and the values of the R, G, and B are between 255 and 255. In this embodiment, the color measurement module [according to the average calculation formula, seven sets of average r, G, and B values, that is, (Rwhite,
Gwhite，Bwhite) ( r㈣。％，〇細⑽，gyeli〇w ) ( Rcyan，Gcyan，Bcyan ) (，Ggreen，%_ ) ( Rmagenta，Gmagenta，Bmagenta) ( Rred， 200846818Gwhite, Bwhite) (r(four).%, fine (10), gyeli〇w) (Rcyan, Gcyan, Bcyan) (,Ggreen,%_) (Rmagenta, Gmagenta, Bmagenta) (Rred, 200846818
Gred ’ Bre(j) ( Rbiue ’ Gbiue，Bbiue) 0 對於步驟S16，請參閱圖7所示，是從圖3的測試圖表中 ‘ 分割出來的灰階測試區域d的測試區域分佈圖。該灰階測試 - 區域d是把從白到黑之間分成若干份，每一份是不同明度的 灰’即灰度’每一個灰度叫做一個灰階，本實施例中由7 個灰階構成。本實施例中所述的灰階測試區域d中的多個預 定測試區域包括七個測試區域，分別為在每一個灰階區域 内選擇的一個矩形或者正方形的测試區域。選擇矩形或者 _ 正方形的測試區域是為了防止某一灰階區域中的某一圖元 出現灰階誤差而影響測試結果。當然，根據測試用戶的喜 好，也可以選擇一個圓形或者菱形等其他形狀的預定測試 區域，而也並不限於本實施例。 所述灰階測試模組112測試每一預定測試區域的灰階 值，所述灰階值的範圍在〇〜255之間。本實施例中，所述 灰階測試模組112透過計算可以得到7個平均灰階值。 φ 對於步驟317,請參閱圖8所示，是從圖3的測試圖表中 分割出來的解析測試區域b的測試區域分佈圖。所述解析測 忒區域b由白色、黑色、水平線及垂直線四個區域組成。本 實施例中所述的解析測試區域b中的多個預定測試區域包 括四個測試區域，分別為在所述白色、黑色、水平線及垂 直線四個區域内選擇一個矩形或者正方形的測試區域。當 然，根據測試用戶的喜好，也可以選擇一個圓形或者菱形 等其他形狀的預定測試區域，而也並不限於本實施例。 所述的解析測忒模組113測試每一預定測試區域的解 15 200846818 析值MTF (Modulation Transfer Function，調製度傳遞函 數），所述解析值的範圍在〇〜1之間。所述解析测試模組113 、 透過計算可以得出每一解析測試區域b的兩個解析值，即 - MTFverticai，與MTFhorizontal。進一步的，在圖3所示的測試 圖表中有5個解析測試區域b，因此，在本實施例中，所述 解析測試模組113透過計算可以得到5組解析值。 對於步驟S18,所述運算判斷模組12在對比所述暗角測 試模組110在暗角測試區域a中測試的多個亮度值中預定亮 • 度值間的差異，並判斷該差異是否超過預定的亮度值的規 範值，其運算判斷方法如下： (1) 將暗角測試區域a的第一規範值與第一運算式 1-Min (Al，A2，A3，A4) /A5的值進行對比，若所述第 一運算式的值大於所述第一規範值，則表明所述暗角測試 區域a中第一測試區域al〜a4中至少存在一個面積較大的暗 角。 (2) 將暗角測試區域a的第二規範值與第二運算式 • Max ( Al，A2，A3，A4 ) /Min ( Al，A2，A3，A4 )相對 比，若所述第二運算式的值大於所述第二規範值，則表明 所述暗角測試區域a中第一測試區域al〜a4中至少存在一個 面積為中的暗角。 (3 )將暗角測試區域a的第三規範值與第三運算式 Min (S1/A1，S2/A2，S3/A3，S4/A4)的值進行對比，若 所述第三運算式的值小於所述第三規範值，則表明所述表 明所述暗角測試區域a中第二測試區域si〜s4中至少存在一 16 200846818 個面積較小的暗角。 所述運算判斷模組12對比色彩測試模組111在色彩測 '試區域c中測試的多個顏色值，判斷該多個顏色值是否分別 ~ 在其預定的顏色值的規範值範圍之内，其運算判斷方法如 下： 將所述7組平均R，G，B值’即（Rwhite，Gwhiie，Bwhite) (Ryeuow，Gyell〇w，Byellow) (Rcyan，Gcyan，Bcyan) (Rgreen， green Bgreen ) ( Rmagenta ’ GmagenU ’ Bmagenta) ( Rred ’ Gred， ⑩ Bred ) ( Rblue ’ Gblue ’ Bblue )分別與其對應的規範值作比較， 判辦其疋否在規範值的範圍之内。例如，色彩測試模組 透過计异測得Rwhite=200，Gwhite=150，Bwhite=255，若白色 區域所預定的色彩的規範值為Rwhite=1〇〇〜2〇〇， Gwhite=l〇〇〜200，Bwhite=l〇〇〜255，則白色區域的顏色值符 合規定。否則，若R，G，B中的任何一個值落在規範值之 外，則白色區域的顏色值不符合規定。其他顏色的判斷與 此相同。 所述運算判斷模組12對比所述灰階測試模組112在灰 階測試區域d中測試的多個灰階值，並判斷該多個灰階值是 否分別在其預定的灰階值的規範值範圍之内，該方法與顏 色值的判斷相似’是將上述7個預定測試區域的灰階值分別 對比其對應的規範值，若所述7個灰階值都在對應的規範值 之内，則灰階符合規定，若其中一個灰階值落在規範值之 外，則灰階不符合規定。 所述運算判斷模組12對比所述解析測試模組113在解 17 200846818 析^試區域b中測試的多個解析值，並判斷該多個解析值是 刀別在.、預定的解析_試區域的解析值的規範值範圍之 •内’該方法是將上述5組解析值分職其對應的規範值相比 。=料個解析值都落麵對應的規範值之内，則解析值 夕冰規疋刀否則纟其中一個解析值落在其對應的規範值 心，則解析值不符合規定。所述解析值的範圍值為〇〜1， 斤值越接近1，表示相機模組3的解析能力越好。 ^所的規範值’無論是暗角測試區域a中的第-、 弟-、第二規範值，還是色彩測試區域c等中的規範值，立 ^數值都是視具體測試條件及測試要求㈣。所述測試 *包括測4日讀、定光源的光照強度等，所制試要求主 要是測試者對待測相機模組3的品質要求等。 1本發明所提供的相機模組的影像測試系統及方法，其 =用張整合的蜊試圖表，對相機模組的測試項目進行整 有助於縮短測試工時，進一步的，採用豎直的測 馨試方法，可以減少測試空間。 乂上所述僅為本發明之較佳實施例而已，且已達廣泛 使用功放，凡其他未脫離本發明所揭示之精神下所完成 之均等雙化或修飾，均應包含在下述之申請專利範圍内。 【圖式簡單說明】 圖1是本發明相機模組的影像測試系統較佳實施方式 的系統架構圖。 圖2是本發明相機模組的影像測試系統較佳實施方式 中電腦的功能模組圖。 18 200846818 統較佳實施方式 圖3是本發明相機模組的影像須彳試系 中測試圖表的示意圖。 /' 圖4是本發明相機模組的 的實施流程圖。 影像蜊試方法較佳 實施方式 圖5是圖3中的測試圖 測試區域分佈圖。 表中分割出來的暗角 測§式區域的 來的色彩測試區域的 圖6是圖3中的測試圖表中分割出 測試區域分佈圖。Gred ’ Bre(j) ( Rbiue ’ Gbiue, Bbiue) 0 For step S16, please refer to FIG. 7 , which is a test area distribution diagram of the gray scale test area d divided from the test chart of FIG. 3 . The gray scale test - the area d is divided into several parts from white to black, each of which is a gray of different brightness, that is, gray scale. Each gray scale is called a gray scale, and in this embodiment, seven gray scales are used. Composition. The plurality of predetermined test areas in the gray scale test area d described in this embodiment include seven test areas, respectively a rectangular or square test area selected in each gray scale area. The test area of the rectangle or _ square is chosen to prevent grayscale errors in a certain element in a grayscale area and affect the test results. Of course, depending on the preference of the test user, a predetermined test area of other shapes such as a circle or a diamond may be selected, and is not limited to the embodiment. The grayscale test module 112 tests the grayscale value of each predetermined test area, and the grayscale value ranges from 〇 to 255. In this embodiment, the grayscale test module 112 can obtain seven average grayscale values through calculation. φ For step 317, as shown in Fig. 8, is a test area distribution map of the analysis test area b which is divided from the test chart of Fig. 3. The analytical measurement area b is composed of four areas of white, black, horizontal lines and vertical lines. The plurality of predetermined test areas in the analysis test area b described in this embodiment includes four test areas, respectively, which are selected in a rectangular or square test area in the four areas of white, black, horizontal, and vertical. Of course, depending on the preference of the test user, a predetermined test area of other shapes such as a circle or a diamond may be selected, and is not limited to the embodiment. The parsing module 113 tests the solution of each predetermined test area 15 200846818 MTF (Modulation Transfer Function), and the range of the parsed value is between 〇~1. The parsing test module 113 can calculate two analytical values of each parsing test area b, namely - MTFverticai, and MTFhorizontal. Further, in the test chart shown in FIG. 3, there are five analysis test areas b. Therefore, in the present embodiment, the analysis test module 113 can obtain five sets of analysis values by calculation. For the step S18, the operation determining module 12 compares the difference between the predetermined brightness values among the plurality of brightness values tested by the vignetting test module 110 in the vignetting test area a, and determines whether the difference exceeds The specification value of the predetermined brightness value is calculated as follows: (1) The first normal value of the vignetting test area a is compared with the value of the first operation formula 1-Min (Al, A2, A3, A4) / A5. In contrast, if the value of the first expression is greater than the first specification value, it indicates that at least one of the first test areas a1 to a4 in the vignetting test area a has a large vignetting area. (2) Comparing the second normal value of the vignetting test area a with the second arithmetic expression • Max ( Al, A2, A3, A4 ) / Min ( Al, A2, A3, A4 ), if the second operation If the value of the formula is greater than the second specification value, it indicates that at least one of the first test areas a1 to a4 in the vignetting test area a has a vignetting area. (3) comparing the third normal value of the vignetting test area a with the value of the third arithmetic expression Min (S1/A1, S2/A2, S3/A3, S4/A4), if the third operational expression If the value is smaller than the third specification value, it indicates that at least one of the 16 200846818 small vignetting angles exists in the second test areas si to s4 in the vignetting test area a. The operation judging module 12 compares the plurality of color values tested by the color test module 111 in the color test 'test area c, and determines whether the plurality of color values are respectively within the specification value range of the predetermined color value. The calculation method is as follows: The 7 groups are averaged R, G, and B values '(Rwhite, Gwhiie, Bwhite) (Ryeuow, Gyell〇w, Byellow) (Rcyan, Gcyan, Bcyan) (Rgreen, green Bgreen ) ( Rmagenta ' GmagenU ' Bmagenta ) ( Rred ' Gred, 10 Bred ) ( Rblue ' Gblue ' Bblue ) is compared with its corresponding specification value and judged whether it is within the scope of the canonical value. For example, the color test module measures Rwhite=200, Gwhite=150, and Bwhite=255. If the white area has a predetermined color, the normal value is Rwhite=1〇〇~2〇〇, Gwhite=l〇〇~ 200, Bwhite = l 〇〇 ~ 255, the color value of the white area is in accordance with the regulations. Otherwise, if any of the values of R, G, and B falls outside the specification value, the color value of the white area does not conform to the specification. The judgment of other colors is the same. The operation determining module 12 compares the plurality of grayscale values tested by the grayscale test module 112 in the grayscale test area d, and determines whether the plurality of grayscale values are respectively in the specification of the predetermined grayscale value thereof. Within the range of values, the method is similar to the judgment of the color value' is to compare the grayscale values of the above seven predetermined test regions with their corresponding specification values, respectively, if the seven grayscale values are within the corresponding specification values. , the gray scale meets the requirements, if one of the gray scale values falls outside the specification value, the gray scale does not meet the requirements. The operation judging module 12 compares the plurality of parsing values tested by the parsing test module 113 in the parsing area b of the test 2008 20081818, and determines that the plurality of parsing values are different, and the predetermined parsing_test The range of the canonical value of the parsed value of the region is 'inside'. The method is to compare the above five sets of parsing values to their corresponding normative values. = If the analytical value falls within the specification value corresponding to the falling surface, then the analytical value 夕冰规疋刀 Otherwise one of the analytical values falls on its corresponding normative value, the analytical value does not meet the requirements. The range of the analytical value is 〇~1, and the closer the value is to 1, the better the resolution of the camera module 3 is. ^The normative value 'is the specification value of the first, the second, the second norm value in the vignetting test area a, or the color test area c, etc., and the value is determined according to the specific test conditions and test requirements (4) . The test * includes measuring the light intensity of the 4-day reading, the fixed light source, etc., and the test requirements are mainly the quality requirements of the tester module 3 to be tested. 1 The image testing system and method for the camera module provided by the present invention, wherein the test module of the camera module is used to shorten the test work time, and further, the vertical test is adopted. The test method can reduce the test space. The above description is only for the preferred embodiment of the present invention, and the power amplifier has been widely used. Any other equalization or modification that is not performed in the spirit of the present invention should be included in the following patent application. Within the scope. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a system architecture diagram of a preferred embodiment of an image test system for a camera module of the present invention. 2 is a functional block diagram of a computer in a preferred embodiment of the image testing system of the camera module of the present invention. 18 200846818 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Figure 3 is a schematic diagram of a test chart in an image test system of a camera module of the present invention. Figure 4 is a flow chart showing the implementation of the camera module of the present invention. Preferably, the image test method is shown in Fig. 5. Fig. 5 is a test chart distribution map of Fig. 3. The vignetting angles in the table are measured. The color test area of the §-type area is shown in Fig. 6. The test area distribution map is divided in the test chart of Fig. 3.
圖7是圖3中的測試圖 测喊區域分佈圖。 表中分割出來的灰階測試區域的 是圖3中的測試圖表中分割出來的解析測試區域的 測式區域分佈圖。 【主要元件符號說明】 電腦 1 2 3 4 40 41 42 10 11 12 110Fig. 7 is a diagram showing the distribution of the test area of Fig. 3. The grayscale test area segmented in the table is the measured area distribution map of the parsed test area divided in the test chart in Fig. 3. [Main component symbol description] Computer 1 2 3 4 40 41 42 10 11 12 110
測試治具 相機模組 信號轉換裝置 電連接器 信號處理晶片 t 5虎輸出蜂 區域分割模組 影像測試模組 運算判斷模組 暗角測試模組 19 200846818 色彩測試模組 111 灰階測試模組 112 解析測試模組 113Test fixture camera module signal conversion device electrical connector signal processing chip t 5 tiger output bee area segmentation module image test module operation judgment module vignetting test module 19 200846818 color test module 111 gray scale test module 112 Analysis test module 113
2020