201250368 六、發明說明： 【發明所屬之技術領域1 本發明有關對從投影機投_縣上的投影影像的光學·進行計算 量測的影像計算制方法、影料算量職置和雜檢查裝置。 【先前技術】 ，影機是將與影像資訊對應地對從光源騎的光束進行娜而作成的 到螢幕上的裝置。如果該螢幕是反射型螢幕，則能夠從營幕的 觀察投影影像，如果是雜雜幕，舰夠從螢幕㈣細觀察投 於衫像。 投影機的投影影像的品質進行判斷的特性，有投影影像的失 ^。▲祕像的失真是指如帛12 _示那樣，與從投影機根據例如格子 的影訊作成的理想的投影影像igi(在圖中用虛綫表示的 的形狀相比’投影到螢幕102上之實際的投影影像1〇3 (在圖中 =實殘表示）的形狀變得不同的狀態。該投影影像的失真的原因除了與營 幕1〇2的表面的凹凸那樣的投影環境有關外，還與投影機的結構有關。 以下使騎®說鴨投雜的結構與投獅像的失真的_。第13圖 是表不計算量測對象之投影機的結構的概要立體ι在綱所示的投影機 200中’從光影201射出的光到達光學像形成板2〇2，到達的光與影 對應地被光學像形成板2〇2排列為像素單位的面板所反射，或者被透射，° 而被調製為像素單簡點影像職縣。祕雜峨影储由投射透鏡 203被投影到螢幕204。在具有這樣的結麟件的投影機2⑼中，這些结構 f件之_相互設歸度、麟透_光賴度、各轉構件的方位一精°度 産生办響產生投影影像的失真。特別在縮短從投影機到螢幕之間的 距離的短f、點ϋ的投職巾，將從投影赌影的投騎彡像投糊非球面反 射鏡等’將其反射光投影到螢幕上。即使根據該非球面反射鏡自身的形狀 精度、②歸度的則、綠，也會發錄大職影雜的失真。 -j外’在投影機中’具有被稱為液晶3板式投影機的對全彩色影像進 灯投影的設備’射該全純雜是對賴色分解為RGB的姆影像進行 合成而作成的。在第14圖所示的液晶3板式投影機細中，從光=如= 201250368 射的光藉由雙色分光鏡302、303、反射鏡304〜306被分解為3個光路。被 分解後的光與影像資訊對應地藉由RGB 6^各光學像形成板3〇7〜309而成為 每個顏色的點影像光。3個顏色分解的點影像光藉由十字稜鏡31〇被合成， 經由由多個透鏡構成的投影透鏡單元311而投影到未圖示的螢幕上。然後， 在合成的投影機的投影影像中，因為光學系統的結構構件之間的設置偏 差、以及各顏色影像的各光學緖相互的偏差成絲因，*產生顏色偏差 的現象。例如，第15圖（a)所示的文字的黑色是RGB全部基色的光合成 的顏色。在根據第15圖（b)所示的RGB的各顏色信號合成文字時，由於 各顏色影像的各光學系統相互的偏差，而産生第15圖⑷所示那樣的顏 色偏差。 法 作為對廷樣的投影機中的投影影像的失真和顏色偏差進行調整的方 …已=有專敝件丨所記綱技術。鱗敝件丨的輕綠從投影機 將根據校正_的影㈣赠成的郷影像娜到螢幕上，藉由攝影裝置 雜進賴影，對紐騎彡像精分析，求㈣投郷像的修正 值，對投鄉像的失真和顏⑽錢行難。正 ==的光學特性的失真成分的兩因素產生的二= 整，必鄉修正值。為了高精度地進行投歸像_色偏差的調 儘旦靠位的轉像進行攝影而確鑛析度。_，使攝影裝置 在二攝==^=只藉由放大螢幕的-部分區域而 行計算量㈣ 析度的攝影元件安裝在攝影裝置中::二二j由將高解 關在廣大範圍内計算量測投影影像的;圍’由此 影r義多個點的』= 匕能夠低成本並且喊地進行影料算量測。 201250368 但是’在上述專利文件1的對投影影像的失真和顏色偏差進行調整的 方法中’在用1個攝影裝置對螢幕的廣大範圍進行攝影的情况下，由於安 裝在該攝影裝置中的透鏡的像差，有時在影像信號自身中包含有投影影像 的失真成分的信號。透鏡的像差有扭曲像差、球面像差、彗形像差、像散、 色差，特別地由於彗形像差，影像會被失真地攝影。另外，在對投影機的 投影影像進行計算量測而計算失真.的.情况下，由於所攝影的影像光的分光 特性而其失真不同的現象會帶來很大誤差。另外，在投影機的投影影像的 。十算量測中，由各投影機照射的光的分光特性並不全部相同，因此，即使 針對每個投频簡影裝置麟位置難，也會有每健賴的透鏡的像 差，因此，無法改善因該透鏡的像差造成的計算量測誤差。 現有技術文件 專利文件1 :日本專利第3,853,674號公報 【發明内容】 本發明就是以上問題點而提出的，其目的在於：提供一種能夠高 精度地計算量測投影機職料·學躲的計算量測方法、影 像計算量測裝置和影像檢查裝置。 為了達到上述目的’中請專利細第丨項的發明是—種影像計算量測 2，該方法具有影像計算量測裝置，其帽影像計算量測裝置具倩：攝 j置，如計算量珊麵投賴將與影像資訊對應地對從光賴射的 itr製㈣賴光雜郷職幕上，触影赌像進行攝 二錢分’該影像計算量測裝置根據“ 出的衫像域料算量驗縣像的光學概， 對具有校正面的校正面構件的上述校正面進行照ίΐΐΐ 色、並且由規定的圖案形成的校正圖案的校正面，藉 由上述攝影裝置對上述校正面的校正圖案马， 置根據從上述攝影裝置触的影雜對2 “置，=裝 根，所分析出的實際的上述校正圖案的位置置 之間的相_ ’計算出上述攝影裝置的光學特性的失真成分 201250368 藉由上述投職將根據規定的計算量__的影像資訊產生的投影影 投影到螢幕上’藉由上麟織置對上述郷祕精攝影，㈣計算出 的上述，影裝置的光學特性的失真成分的修正值、對從上述攝影裝置輸出 的景顺5驗祕正，娜修正後的雜信麟上述郷雜的光學特性 進行計算量測。 在本發明中，作為照明使用計算量测用的投影機，.對具有校正圓案的 校正面的校正面構件精騎，藉_雜置對職正_進行攝影了另 藉由影像處理單元預綺算出攝職置的光轉性的失真充分的修正 2使用該修正值’修正藉由攝影裝置對以影像計算_得_計算量測 對象的投賴陳影雜進賴騎刺的影像魏，由此即使攝 的失真成分，也能夠從由投影影像得到的影像信號中排除攝 ^光學特‘1雜的失真成分，賴高精度地計算量職職的投影影像 .【實施方式】 了本發明的影像計算量測裝置的一個實 以下’參照附圖詳細說明應用 施方式。 所示本實施方式之影像計算量職置的結構的概要圖。該圖 十算量測裝置10包含以下部件而構成··固定裝置η，用於固定 測對象峨職2G;螢幕12，餘倾賴2〇郷影像：攝 _螢幕12上的郷f彡像進行娜；爾分析單元14， 相紋的校正圖案。攝影裝置13是安裝有CCD照 ==體攝像轉的-般的攝影裝置。另外，攝職置η的攝像元件是 純攝像①件、3板式攝像元件。如果是黑白攝像元件’ 、十ί先的全禮長頻帶都有靈敏度’即使是單板式的，與彩色攝像元件 圖目待高解析度和低成本。假設形成在校正面構件15上的校正 t同*"_配置在校正面上，作為贱精確地測定的實測值 案嫩。作為第2圖所示的校正面構件15的校正圖案 的個例子，背景的顏色是黑色，圖案部分重複形成有白色的格 201250368 進而各交點德鱗間_。作為第3 _示的校正圖㈣另—個例子， 是圓圖案’背景的顏色是黑色’圖案部分_部分^色的。循環形成有 同一圓圖案’進而圓部分的中心為等間隔。 接著，賴處雌㈣第4圖’本實财摘郷雜的失真 查處理。 首先，說明進行攝影裝置.的像差修正等的第—步驟。如果不變更第i 圖的攝影裝置13和螢幕12之間的位置關係，不變更來自投影機2◦的投影 影像的基色，财需要每次實施第—步驟（步驟sm〜遞）。將計算量測 對象的投雜20或同-機麵投影機設置在固絲置u上^接著，在 f 12跟前設置校正®構件…或者，也可_下螢幕12，設置校正面構 件。設置螢幕12和校正面構件ls，使得在螢幕12的光學面和校正面構件 =的校正面上’沒絲纽置私__題。接著，從郷機向校正面 構件I5的校正面照明基色的均勻影像數據（步驟讀）。進而，使得不射 ^來自其他光_光。基色的均勻數據是指在職郷機的影像顏色 時使用絲L胁腦3.板歧晶細缺騎^，完全遮蔽其 他的G光、B光。由於校正轉件15的校正面由黑白圖案形成，照明光是 投影機的基色’所以螢幕12反射的光只被校正面構件15的校正面的白色 部分反射。該反射光直接反映了郷機的分光雜。在雛態下，使 ，的攝影裝置13 ’對校正面構件15的校正面進行攝影（步驟siG2)。根據 來自攝影裝置I3的影像信號，由第丨_影像分析單元M對校正面構件 15的校正面的圖案位置進行分析’即計算量測校正點的位置坐標（步驟 则>然後’藉由使用校正面構件15陳正面的實酿，計算 =對象的投影機20的基色下之包含攝雜置13的賴的腕像差成分的 攝影裝置的影像失真的修正處理數據（步驟sl〇4)。 在此，使用第5圖，說明使用校正圖案對投影機投影圖案計算量測坐 -進?修正龜要二在該财，根據檢_的校正_触㈣與從實測 =測里值假想地計#出的正確的校正圖案的坐標32之間的關係，將檢測出 的投影機圖案的坐標33修正為修正後的坐標34。第6圖表示該修正計算方 法的-侧子。在該修正計算中，計算出從各檢測點到投影機_亮圖案 位置的距離相對於從校正圖獅各檢泰顺影機_亮_位置的距離 201250368 求出進行位置修正後的投影機點亮圖案的位置坐？藉==^_的直增量檢201250368 VI. Description of the Invention: [Technical Field 1 of the Invention] The present invention relates to an image calculation method, a shadow calculation position, and a miscellaneous inspection device for performing measurement measurement on an optical image of a projection image projected from a projector. . [Prior Art] A video camera is a device that produces a light beam that is taken from a light source in response to image information. If the screen is a reflective screen, it is possible to observe the projected image from the screen. If it is a miscellaneous screen, the ship can observe the shirt image from the screen (4). The quality of the projected image of the projector is judged by the quality of the projected image. ▲The distortion of the secret image means that, as shown in FIG. 12, it is projected onto the screen 102 as compared with the ideal projection image igi (the shape indicated by a broken line in the figure) from the projector based on, for example, the image of the grid. The actual projected image 1 〇 3 (in the figure = real-residual) has a different shape. The cause of the distortion of the projected image is related to the projection environment such as the unevenness of the surface of the camp 1 〇 2 It is related to the structure of the projector. The following is a description of the structure of the projector and the distortion of the lion-like image. Figure 13 is a summary of the structure of the projector that does not calculate the measurement object. In the projector 200, the light emitted from the light-shadow 201 reaches the optical image forming plate 2〇2, and the arriving light is reflected by the panel in which the optical image forming plate 2〇2 is arranged in units of pixels, or is transmitted, and is modulated. For the pixel, a simple dot image is used for the county. The secret memory is projected by the projection lens 203 onto the screen 204. In the projector 2 (9) having such a knot, the structure of each of the components f is set to each other. _Light latitude, the orientation of each rotating member The degree of noise is generated to produce distortion of the projected image. Especially in shortening the distance from the projector to the screen, the short f, the point of the job towel, will be thrown from the projected gambling image of the aspherical mirror Waiting for 'projecting its reflected light onto the screen. Even according to the shape accuracy of the aspherical mirror itself, 2 to the degree, and green, it will record the distortion of the big job. -j outside 'in the projector' A device for projecting a full-color image into a lamp, which is called a liquid crystal 3 panel projector, is formed by synthesizing a pure image of a gamma image that is decomposed into RGB. The liquid crystal 3 shown in FIG. In the thinness of the panel projector, the light emitted from the light=such as 201250368 is decomposed into three optical paths by the two-color spectroscopes 302, 303 and the mirrors 304 to 306. The decomposed light corresponds to the image information by RGB 6^ Each of the optical image forming plates 3〇7 to 309 is a point image light of each color. The three color-decomposed point image lights are combined by the crossbar 31〇, and are passed through the projection lens unit 311 composed of a plurality of lenses. Projected onto a screen not shown. Then, in synthetic In the projection image of the camera, the deviation between the structural members of the optical system and the deviation of the optical axes of the respective color images are caused by the cause of the color deviation. For example, Figure 15 (a) The black color of the character is the color of the light combination of all the RGB colors. When the characters are synthesized based on the RGB color signals shown in Fig. 15(b), the optical system of each color image is different from each other, resulting in the 15th. The color deviation as shown in Fig. 4 is used as a method for adjusting the distortion and color deviation of the projected image in the projector of the sample. From the projector, the 郷 image that is given according to the correction _ shadow (4) is sent to the screen, and the photographic device is mixed into the shadow, and the 彡 彡 精 精 精 精 精 精 精 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽The distortion and color (10) money is difficult. The two factors of the distortion component of the positive == optical characteristic produce the two = integer, the correct correction value. In order to accurately perform the imaging of the image-like color deviation, the image is reproduced and the degree of mineralization is determined. _, so that the photographic device in the second shot ==^= only by zooming in on the - part of the screen and calculating the amount (four) grading of the photographic components installed in the photographic device:: two two j will be high in a wide range Calculate the measurement of the projected image; surround the 'multiple points of the image' = 匕 can perform the shadow calculation at low cost and shouting. 201250368 However, in the method of adjusting the distortion and color deviation of the projected image in the above-mentioned Patent Document 1, in the case where a wide range of the screen is photographed by one photographing device, the lens mounted in the photographing device Aberration sometimes includes a signal of a distortion component of a projected image in the image signal itself. The aberration of the lens has distortion aberration, spherical aberration, coma aberration, astigmatism, chromatic aberration, and especially due to coma aberration, the image is imaged with distortion. Further, in the case where the projection image of the projector is subjected to calculation measurement to calculate distortion, a phenomenon in which the distortion is different due to the spectral characteristics of the captured image light causes a large error. Also, the projected image of the projector. In the ten-measurement measurement, the spectral characteristics of the light irradiated by each projector are not all the same. Therefore, even if it is difficult for each pitching device, the aberration of each lens is strong. The calculation measurement error due to the aberration of the lens cannot be improved. The present invention has been made in view of the above problems, and an object thereof is to provide a calculation amount capable of accurately measuring a projection machine's material and learning hiding with high precision. Measuring method, image calculation measuring device and image inspection device. In order to achieve the above objective, the invention of the patent stipulation item is an image calculation measurement 2, which has an image calculation measurement device, and the cap image calculation measurement device has a cushion: a calculation amount, such as a calculation amount Face-to-face investment will correspond to the image information on the itr system from the light (4) Lai Guangchao on the screen, touch the gambling image to take two money points 'The image calculation measurement device according to the "out of the shirt image area material Calculating the optical outline of the image of the county, correcting the correction surface of the correction surface member having the correction surface, and correcting the correction pattern formed by the predetermined pattern, and correcting the correction surface by the photographing device The pattern horse is calculated for the distortion of the optical characteristics of the above-mentioned photographing device based on the phase _ between the position of the above-mentioned correction pattern analyzed by the above-mentioned photographing device 2 Ingredient 201250368 Projection shadow image generated based on the image information of the prescribed calculation amount __ is projected onto the screen by the above-mentioned appointments, 'the above-mentioned shadow device calculated by Shanglin woven for the above-mentioned 郷 secret photography, (4) The correction value of the optical characteristics of the distortion component was calculated from measurements of the optical properties of the imaging means INVESCO outputted 5 secret positive experience, the above-described heteroaryl is believed Hongo Lin Na corrected after complicated. In the present invention, the projector for calculating the measurement is used as the illumination, and the correction surface member having the correction surface of the correction circle is finely photographed, and the image is processed by the image processing unit.绮 Calculate the distortion of the photo-rotation of the camera. 2 Use the correction value to correct the image of Therefore, even if the distortion component is captured, the distortion component of the optical fiber can be excluded from the video signal obtained from the projection image, and the projection image of the professional job can be calculated with high precision. [Embodiment] The present invention has been made. One embodiment of the image calculation measuring device will be described in detail with reference to the accompanying drawings. A schematic diagram showing the structure of the image calculation amount of the present embodiment is shown. The ten-measurement measuring device 10 includes the following components to constitute a fixing device η for fixing the measuring object 2G; the screen 12, the remaining image 2: the image of the camera 12 on the screen 12 Na's analysis unit 14, a phased correction pattern. The photographing device 13 is a photographing device in which a CCD photograph == body image rotation is mounted. In addition, the imaging element of the camera η is a pure imaging unit and a 3-plate imaging element. If it is a black-and-white camera element, the full-length band of the tenth-first is sensitive. Even if it is a single-board type, the color image sensor is required to be high-resolution and low-cost. It is assumed that the correction t formed on the correction surface member 15 is arranged on the correction surface as the measured value accurately measured by 贱. As an example of the correction pattern of the correction surface member 15 shown in Fig. 2, the color of the background is black, and the pattern portion is repeatedly formed with white grids 201250368 and then between the intersections. As a third example, the correction map (four) is an example in which the color of the background of the circle pattern is black 'pattern portion _ partial color. The loops are formed with the same circular pattern' and the centers of the circular portions are equally spaced. Then, relying on the fourth (figure 4) of the female (4), the real money is noisy and the distortion is checked. First, the first step of performing aberration correction or the like of the photographing device will be described. If the positional relationship between the photographing device 13 and the screen 12 of the i-th image is not changed, and the primary color of the projected image from the projector 2A is not changed, it is necessary to perform the first step (step sm~delive) each time. Set the dosing 20 or the same-plane projector of the measurement object to the fixed wire u. Then, set the correction ® member in front of f 12... or you can set the correction surface component. The screen 12 and the correction surface member ls are set such that the optical surface of the screen 12 and the correction surface of the correction surface member = are not provided. Next, the uniform image data of the primary color is illuminated from the downtime to the correction surface of the correction surface member I5 (step reading). Further, it is caused that no light is emitted from other light. The uniform data of the base color refers to the use of the silk L-brain in the image color of the on-board machine. 3. The plate is inferior to the horse, completely shielding other G light and B light. Since the correction surface of the correction rotary member 15 is formed of a black-and-white pattern, and the illumination light is the primary color of the projector', the light reflected by the screen 12 is reflected only by the white portion of the correction surface of the correction surface member 15. The reflected light directly reflects the splitting of the downtime. In the initial state, the imaging device 13' is photographed on the correction surface of the correction surface member 15 (step siG2). According to the image signal from the photographing device I3, the pattern position of the correction surface of the correction surface member 15 is analyzed by the second image analysis unit M, that is, the position coordinates of the measurement correction point are calculated (step > then 'by use The correction processing of the front side of the correction surface member 15 is performed, and the correction processing data of the image distortion of the imaging device including the wrist aberration component of the camera 13 under the primary color of the target projector 20 is calculated (step sl4). Here, using FIG. 5, the calculation of the projection pattern of the projector using the correction pattern is performed. The correction is determined by the correction. The correction is based on the correction _ the touch (four) and the actual measurement = the imaginary value. The relationship between the coordinates 32 of the correct correction pattern that has been output is corrected, and the coordinates 33 of the detected projector pattern are corrected to the corrected coordinates 34. Fig. 6 shows the - side of the correction calculation method. In the calculation, the distance from each detection point to the position of the projector_bright pattern is calculated from the position of the projector lighting pattern after the position correction is corrected from the distance 201250368 from the corrected lion's each camera. Sit? Borrow ==^ _ straight incremental check
此能夠修正因攝影裂置造成的失真成分，圖所示：==因 B'、C'的數據被預先儲存在儲存器中。 ⑽點的理想认A 置第^的圓中的影像失真檢查的第二步驟’藉由固定裝置11設 位對象的投影機20,從投影機20用校正時使用的基色將 圖那樣的校正圖案。其中，兩者並不必須一致。然後， 行分析，纽計算恤《案的坐驗（步驟 等誤i成^勤倾得_紅輯賴齡麟具有的像差 Γ°9)β然㈣表示顯示出投影機的影像變形 ^的〜像的第7圖中’表示出由第.i圖的攝影單元檢測出的投影機圖案 33以縣由上祕正綠修錢職频_的缝34。相對於在 坐標34中，是還包含攝影單元的透鏡像差成分的影 ，的失真晴况’在進轉正後的結果的_坐射，只有 ΐ測對象的郷機自身造成的失真成分^根_ 2縫據，計算出了作為 衫像的失真的特徵量之.由於各圖案坐標形成的直殘的直殘性以及由於 之間的間距而形成的倍率的誤差等，而可檢查影像失真（步驟suG)This can correct the distortion component caused by the photographic splitting, as shown in the figure: == Because the data of B', C' are stored in the memory in advance. (10) Ideal point of the image A second step of the image distortion check in the circle of the second circle 'the projector 20 of the object to be fixed by the fixing device 11 is used to correct the pattern from the projector 20 using the primary color used for the correction. . Among them, the two do not have to be the same. Then, the analysis of the line, the new calculation of the case of the case (the steps are wrong, the result is erroneous, the result is 勤 勤 _ red 赖 麟 具有 具有 具有 具有 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) 然 然 然 然 然 四 四In the figure 7 of the figure, 'the projection 34 of the projector pattern 33 detected by the photographing unit of Fig. i is shown by the seam 34 of the prefecture. With respect to the coordinate 34, it is the shadow of the lens aberration component of the photographing unit, and the distortion of the result of the distortion after the positive rotation is only the distortion component caused by the downtime of the object to be measured. The _ 2 stitching data is used to calculate the distortion of the figure of the shirt image. The image distortion can be checked due to the direct residue of the straight line of each pattern coordinate and the error of the magnification due to the spacing between the two. Step suG)
能夠分別在第-步驟中進行在失真計算量測中使用的攝影裝置的像差修 正、以及在第二步驟中進行投影機的影像品雜性的失真計算量測。乂 在本實施方式之其他變化例變化例子的影像計算量測裝置中，針 算量測對㈣郷_彩色影像形錢色的每_色（如果是職°θ 每個RGB)，實施只職影機的基色進行的操作，相對地對各形成顏色的= 置圖案誤差進行比較，由此求出投影機的投测案全部區域_色偏 分佈。具體地說’在3.板式液晶投影機中.，.安裝有RGB的3個光學像形 面板’藉由各面板形成影像，因此，在細本實施方式的情况下，如第8 圖所示’對於R、G、B的3色的每麵色，分別進行上述第一步驟和 第二步驟（步驟SM、幻〇2、S2〇3)，進行位置圖案的計算量測。然後，L 201250368 各圖案坐驗計算出顏色偏差量（步驟S2G4)，進行顏色偏差 量的檢查（步驟S205)。 接著’說明對藉由上述影像計算量測裝置得到的被檢查對象的投 之投影影像的。e°f進行檢查的雜檢錄置。該影像檢«置是實際上對 ^子圖案進行投影’藉由上《彡像計算量繼置轉各交,_坐標Γ對阻 抗、特徵比、綫彎曲、顏色偏差進行檢查的裝置。 ⑽Ιί 1說日組抗的檢查。在此，阻抗（resist)是指郷影像位置。將 L維ί m2投職設置在献位置後進行檢查。雜，藉由使用投影機 的縮放功錄進行縮鱗猶，㈣絲指定投影大小。這時 投衫影像驗置就是阻抗。第9暇表示阻抗檢查時的螢幕上的投影影像 的圖。該圖中的實線是被投影在螢幕4G上的被檢查投糊帛4 投影_42。預先設定投糊案指定㈣相對於校正_原點的理相坐 祕，根顯實際·像的錄㈣差，進碰查。域 ^杳 對象位置43姉紐想投賴_差（Δχ、Λγ)是否為指定的規格值: 下，來進行阻抗的檢查。 接著’說明特徵比的檢查。在此，特徵比是指投影影像的縱橫比。被 檢查對象的投賴具錢辦彡像的雜㈣設計值。在具有無設計值對 應的公m的餘輯情况下，例如投敎字的職_設計值不同。 例如’成為壓扁的文字。因此，如第1G騎示’特徵比的檢查是對投影到 螢幕40上的被檢查投影圖案的縱（=LY)、橫（=LX)進行計算制。缺 ^算出特徵比R=LY/LX ’域設計值公差進行比較，由此進行舰比的檢 接著，說明綫彎曲的檢查。在投影影像中，有在本來為直線的圖案在 彎曲的狀態下被投影。_在短細投影機等絲了非球面透鏡、反射於 等的設備中，依部件精度、安裝精度，而有投影影像變形的情況。因此兄 在線彎曲的檢查中’如第U _示，對由格子圖案形成的各綫的任 全縣進行②檢查。然後’求出表示本來為直線的地方的線彎曲為何種程 度的指標。具體地說’如第11圖所示’根據形成i線的格子圖案的各交點 坐標’相對於由其起始點和終刺成的直線，對每個交触標求出其垂直 方向的距離。其中，分別求出+側和-側的最大值，將其差作爲指標'(彎曲 201250368 量）。藉由對該料量與規格健行比較，進行線料的檢查。 接著，說明顏色偏差的檢查。如上述第 一 3m t制在3板式液破影機中，藉由安裝有腦的 =形成麟；因此，對刪的3色的每個顏色進行 偏ίΐ = ΐΓ另外，藉由根據RGB的各圖案坐標值，計算出顏色 偏差篁，而進订顏色偏差的檢查。 以上說明的是-個例子，本發明在每個以下的形式中都起到特有的效 果0 (形式A) ，本實施方式的影像計算量測方法中，如對上述實施方式說明的那 μ旦^算：!：靡彡像失真時，針對攝歸置自身具有的像差成分 ，使用計 异里測對象的投影機的郷影像光，計算錄正值，鼠能_投影機的 投影影像光齡光雜域地、正確地簡魏置的光料制像差成分 進行修正’能夠用少的攝影裝置廣純制，能夠高精度地計算量測投影 影像的光學特性。 (形式Β) 在（形式A) t，校正圖案與計算量測用圖案是相同的圖案。由此， 如對上述實施方式所說明的那樣，能夠對影像失真更簡單地計算出對影像 失真的修正值。 (形式C) 在（形式A)或（形式B)中，藉由用形成彩色影像的每個基色的光對 校正圖案進行照明並藉由攝影裝置分別對每個基色的校正圖案進行攝影， 而可分別計算出每個基色的攝影裝置的光學特性的失真成分的修正值。由 此，如對上述實施方式所說明的那樣，在計算量測顏色偏差時，針對攝影 系統所具有的像差成分’使贿計算姻縣的投雜的純影像的基色 對應的各投影影像光，分別計算嫌正值，因此，能夠與投影機的投影影 像光的分光雜無_、正確地修JE攝料、制縣成分，能躺精度地 計算量測投影影像的光學特性。 201250368 (形式D) 在本實施方式的雜計算量罐置巾，如對上財财式所說明的那 樣，在計算量測影像失真時，針對攝影單元自身所具有的像差成分，使用 計算量測對象的投影機的投影影像光，計算祕正值，因此，能夠與投影 機的投影影像光的分紐性無關地、正確祕正攝影單元的光學系統的像 差成分，能_少的攝影裝置航地應用，而能夠高精度地計算量測投影 影像的光學特性。 (BSE) 在（形式D)中’藉由用形成彩色影像的每個基色的光對校正圖案進 行照明’並藉由攝雜置侧對每個基色陳正圖案進賴影，來分別計 算出每個基色的攝影單元的光學特性的失真成分的修正值。由此，如對上 述實施方式的變化繼化例子所·的那樣，在計算量藝色偏差時，針 對攝影系麟具有的像差成分，使賴計算量嶋象的投影機的彩色影像 的基色對應的各投影影像光，分別計算出修正值，因此，能夠與投影機的 投影影像光的分光雜無義、正_祕正攝料⑽像域分，能夠高 精度地計算量測投影影像的光學特性。 ° (形式F) 使用（形式D)或（形SE)的影像計算量測裝置，根據對由計算量測 對象的投影機投影的規定的圖案進行攝影所得到的投影影像的特性值，對 投影影像的品質進行檢查。由此，如對實施方式的變化例變化例子所說明 的那樣’能夠根據投影影像的特性值，進行投影機投騎影像的品質檢查、 例如阻抗、特徵比、線彎曲、顏色偏差的檢查，因此，與目視檢查相比； 在檢查結果中沒有偏離/ — 【圖式簡單說明】 第1圖是表示影像計算量測裝置的結構的概要圖； 第2圖是表示校正圖案之一個離子的俯視圖； 弟3圖疋表不板正圖案之另一個例子的俯視圖； 第4圖是表示本實施方式之投影影像的失真檢查處理的流程圖； 第5圖是表示投影機投影圖案計算量測坐標之修正的概要的圖； 201250368 第6圖是說明修正計算方法之一個例子的圖； 第7圖是表示顯示出投影機之影像變形狀態的影像的俯. 理的流程 是表示本實施方式之另—個變化例子中投影影像的失真檢查處 第9圖是表示阻抗檢查時螢幕上的投影影像的圖； 第10圖是表示特徵比檢查時螢幕上的投像的圖； 第11岐表示綫f驗查af螢幕上的投騎像的圖； 第12圖是表示投影影像b失真的俯視圖； 第13圖是表不計算量麟象之投影機的結構的概要立體圖； 第14圖是表示液晶3板式投影機的結構的概要圖；以及 第15圖是說明投影機之投影影像中顏色偏差現象的圖。 【主要元件符號說明】 10 影像計算量測裝置； 11 固定裝置 12 螢幕 13 攝影裝置 14 影像分析單元 15 校正面構件 20 投影機 31 坐標 32 坐標 33 坐標 34 坐標 40 螢幕 41 被檢查投影圖案 42 理想投影圖案 43 檢查對象位置 S101、S102、S103、S104、S105、 S106、S107、S108、S109、S110 步驟 12The aberration correction of the photographing device used in the distortion calculation measurement and the distortion calculation measurement of the image quality of the projector in the second step can be performed in the first step, respectively. In the image calculation measuring device of the variation example of the other variation of the embodiment, the calculation of the (four) 郷 _ color image color chromatic color (if the job is ° θ each RGB), the implementation of the job only The operation of the base color of the camera compares the pattern errors of the respective formed colors, thereby obtaining the total area_color shift distribution of the projection test of the projector. Specifically, 'in the three-panel liquid crystal projector, three optical image panels mounted with RGB' form images by the respective panels. Therefore, in the case of the detailed embodiment, as shown in FIG. 'For each of the three colors of R, G, and B, the first step and the second step (step SM, phantom 2, S2 〇 3) are performed, and the measurement of the position pattern is performed. Then, the color deviation amount is calculated for each pattern of the L 201250368 (step S2G4), and the color deviation amount is checked (step S205). Next, the projected image of the subject to be inspected obtained by the above-described image calculation measuring device will be described. The miscellaneous inspection record of the e°f inspection. The image detection «is actually projecting the sub-pattern" by means of the above-mentioned "image calculation amount relaying each intersection, _ coordinate Γ to check the impedance, the characteristic ratio, the line bending, and the color deviation. (10) Ιί 1 Say the inspection of the Japanese group resistance. Here, the impedance refers to the position of the image. The L-dimensional m m2 is placed in the position and checked. Miscellaneous, by using the projector's zooming workbook to scale down, (4) silk to specify the projection size. At this time, the shirt image is the impedance. Figure 9 shows a diagram of the projected image on the screen during impedance inspection. The solid line in the figure is the projected paste 4 projection_42 projected on the screen 4G. Pre-set the paste order designation (4) Relative to the correction _ origin of the rationality, the root of the actual image (four) difference, into the collision check. Field ^ 杳 Object position 43 姊 想 _ _ _ _ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ Next, the inspection of the feature ratio is explained. Here, the feature ratio refers to the aspect ratio of the projected image. The design value of the miscellaneous (four) of the image of the object to be inspected. In the case of a remnant of a public m having no design value, for example, the job_design value of the word is different. For example, 'become squashed text. Therefore, the inspection of the feature ratio as in the 1st GX is performed by calculating the vertical (= LY) and the horizontal (= LX) of the projected projection pattern projected onto the screen 40. The missing ^ calculated feature is compared with the R = LY / LX ' domain design value tolerance, thereby performing a ship ratio check, and explaining the line bending check. In the projected image, a pattern that is originally a straight line is projected in a curved state. _ In a device such as a short projector or the like that has an aspherical lens or a reflection, the projected image is deformed depending on the accuracy of the component and the mounting accuracy. Therefore, in the inspection of the brother's online bending, as shown in the U-th, the inspection is performed on any of the counties of the lines formed by the checkered pattern. Then, 'the index of the degree of bending of the line indicating the place where the line is originally straight is obtained. Specifically, as shown in Fig. 11, 'the coordinates of the intersections of the lattice patterns forming the i-line' are plotted against the straight line from the starting point and the end, and the distance in the vertical direction is determined for each of the intersections. . Among them, the maximum values of the + side and the - side were respectively obtained, and the difference was used as an index '(bending 201250368 amount). The line material is inspected by comparing the material amount with the specification. Next, the inspection of the color deviation will be described. As described above, the first 3m t system is formed in a 3-plate liquid image rupture machine by using the brain to form a lining; therefore, each color of the deleted three colors is biased ΐΓ ΐΓ ,, in addition, according to each of RGB The pattern coordinate value is calculated, and the color deviation 篁 is calculated, and the color deviation is checked. The above description is an example, and the present invention has a unique effect 0 (form A) in each of the following forms. In the image calculation measurement method of the present embodiment, as described in the above embodiment, ^算:!: When the image is distorted, the aberration image of the projector is used to calculate the positive value of the projector, and the projected image is calculated by using the image of the projector. The correction of the aberration component of the light-precision region and the correct light-based component can be corrected by using a small number of imaging devices, and the optical characteristics of the projected image can be measured with high precision. (Form Β) At (Form A) t, the correction pattern is the same pattern as the calculation measurement pattern. As a result, as described in the above embodiment, the correction value for the image distortion can be calculated more simply for the image distortion. (Form C) In (Form A) or (Form B), the correction pattern is illuminated by light of each of the primary colors forming the color image, and the correction pattern of each of the primary colors is separately photographed by the photographing device, The correction value of the distortion component of the optical characteristics of the imaging device of each primary color can be separately calculated. Therefore, as described in the above-described embodiment, when the color deviation is measured, each of the projection image lights corresponding to the primary color of the pure image of the marriage is calculated for the aberration component of the imaging system. Since the positive value is calculated separately, it is possible to accurately measure the optical characteristics of the projected image by accurately arranging the JE photograph and the county component with the projection image light of the projector. 201250368 (Form D) In the miscellaneous calculation cans according to the present embodiment, as described in the above-mentioned financial formula, when calculating the distortion of the measurement image, the calculation amount is used for the aberration component of the imaging unit itself. Since the projection image light of the projector to be measured is used to calculate the secret value, it is possible to accurately correct the aberration component of the optical system of the imaging unit regardless of the demarcation of the projected image light of the projector. The device is used in the navigation field, and the optical characteristics of the projected image can be calculated with high precision. (BSE) In (Form D), 'I illuminate the correction pattern by using the light of each of the primary colors forming the color image' and calculate the image by using the side of each of the primary colors. A correction value of the distortion component of the optical characteristic of the photographic unit of each primary color. Therefore, as in the case of the variation of the above-described embodiment, when the amount of color deviation is calculated, the color of the color image of the projector that depends on the amount of calculation is determined for the aberration component of the photographic system. Since the correction value is calculated for each of the corresponding projected image lights, it is possible to accurately calculate the projection image by dividing the image of the projected image light of the projector with the image of the image and the image of the image. Optical properties. ° (Form F) Using the image calculation measuring device of (Form D) or (Form SE), the characteristic value of the projected image obtained by photographing a predetermined pattern projected by the projector that calculates the measurement target, and the projection Check the quality of the image. Therefore, as described in the variation example of the embodiment, the quality inspection of the projector riding image, for example, the impedance, the feature ratio, the line bending, and the color deviation can be checked based on the characteristic value of the projected image. Compared with the visual inspection; there is no deviation in the inspection result / - [Simplified description of the drawings] Fig. 1 is a schematic view showing the structure of the image calculation measuring device; Fig. 2 is a plan view showing one ion of the correction pattern; 3 is a plan view showing another example of the positive pattern of the board; FIG. 4 is a flowchart showing the distortion checking process of the projected image of the embodiment; and FIG. 5 is a view showing the correction of the calculated coordinate of the projection pattern of the projector. Fig. 6 is a diagram illustrating an example of a correction calculation method; Fig. 7 is a flowchart showing a process of displaying an image deformation state of a projector, which is another embodiment of the present embodiment. Fig. 9 is a view showing a projection image on the screen during the impedance inspection in the variation example; FIG. 10 is a diagram showing the characteristic comparison. The picture of the projection image on the screen; the 11th line indicates the line f to check the image of the shooting image on the af screen; the 12th picture shows the top view of the distortion of the projected image b; the 13th picture shows the figure of the calculation image A schematic perspective view of a configuration of a projector; Fig. 14 is a schematic view showing a configuration of a liquid crystal three panel projector; and Fig. 15 is a view for explaining a color deviation phenomenon in a projection image of the projector. [Main component symbol description] 10 Image calculation measuring device; 11 Fixing device 12 Screen 13 Photographing device 14 Image analyzing unit 15 Correcting surface member 20 Projector 31 Coordinates 32 Coordinates 33 Coordinates 34 Coordinates 40 Screen 41 Checked projection pattern 42 Ideal projection Pattern 43 inspection object position S101, S102, S103, S104, S105, S106, S107, S108, S109, S110 Step 12