TW200414078A - Method to process image in the digital image capturing system and image capturing system and the digital image capturing system - Google Patents
Method to process image in the digital image capturing system and image capturing system and the digital image capturing system Download PDFInfo
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200414078 五、發明說明(1) 發明所屬之 本發明 一種在數位 先前技術 在拍照 特性統計起 像做處理、 方向做不一 統若沒有調 水平或垂直 目前有 及處理,其 若偵測出為 序,最後再 品中並沒有 因為像 費許多的記 可以十分輕 方向,所以 有些影 為成本考量 不需增加成 傳輸方式, 應的影像處 技術領域 係有關於一種 影像擷取系統 時,拍 來是不 壓縮、 致的處 整其中 的處理 許多的 多著墨直立, 將其以 發現利 這樣的 憶體, 易地在 為了正 像處理 而無法 本及處 而直接 理方法 攝内容 相同的 傳輸或 理。在 的影像 方式對 專利與 在將資 必須將 正確的 用上述 流程需 因此會 第一次 確存檔 確實有 商品化 理時間 去改變 。本發 f:景’像擷取系統,特別是提出 中處理影像的方法。 在垂直方向及水平方向上有許多 θ ^ t有些數位取像裝置在對影 =Ϊ的過·中會對水平與垂直 知像時為直立的狀 處理過裎,# a 糸 ^^! 就會將原本應該針對 匕而無法達到最理想的心對 論文針對古* i ^ J双果。 料的“做” 資料重#輸及重新排列上, 方向ίΞ;:或改變其傳輪順 發明者。颂不,目前市售的商 費較多的時間處理,更I 大幅的増加成本,、更要花 而—慈,利用軟體旋轉到iP 士 而化費如此的心力甘T ϋ J正確 必要因應直.立拍的:貫際。 十分可惜。故本:周整,若因 的技巧:不ΐΐ明提供了-個 +透過I i M 影像處理的參數或選=改變 明在直立拍攝時可抵擇使用相對 攝%可擁有_發明絕200414078 V. Description of the invention (1) The invention of the invention belongs to a digital prior art that is used to process and take pictures of statistical characteristics. If the direction is not adjusted, the horizontal and vertical are present and processed. If the order is detected, In the last reprint, there is no reason that the image cost can be very light, so some cost considerations do not need to be added to the transmission method. The corresponding image processing technology field is about an image capture system. Compressing and rectifying the processing of many multi-inking uprights, and using it to find memory such as Lee, it is easy to directly address the same transmission or processing of the content for direct image processing. The method of imaging in the patent and the assets must be correctly used in the above process. Therefore, it will be archived for the first time and there is indeed commercialization time to change. This issue of f: scape 'image capture system, especially the proposed method for processing images. There are many θ ^ t in the vertical and horizontal directions. Some digital image pickup devices will process the horizontal and vertical images in the upright position when the camera is facing. #, # A 糸 ^^! Will The original thesis which should have been aimed at the dagger but could not achieve the ideal, is aimed at the ancient * i ^ J double fruit. The data of "do" data is re-entered and re-arranged in the direction of Ξ; or change its transfer wheel inventor. Sorry, the current commercial fees are more time-consuming to deal with, and the cost will be greatly increased, and it will take more time to be kind. Using software to rotate to iP and paying for it is so hard. T ϋ J is correct and necessary. . Standing shot: Guanji. It's a pity. So this: weekly, if due to the skill: I do n’t know-provided + a parameter or selection through I i M image processing = change Ming can choose to use relative photography when standing up
0790-9198TWF(η 1);PT-02002;ELLEN.p t d 第4頁 200414078 五、發明說明(2) — 大多數的優點。太發明甘土 Β„ μ w未將拍攝結果直接存取為直立μ 數位照片檔案以方便觀看。々呈立的 使用者可以在第一次欣* 0士 ^直立…、片正確存取之功能, 發明内容 貝守利用現有軟體直接旋轉即可。 *處i i: = J目:i:i出-種在數位影像擷取系統 s X古Α ^、月匕谓察出數位影像擷取系统拍摄Η士 !不ί力卢並依照偵測結果對影像處理做調整,並且“ 增加處理時間與晶片成本的情況下,獲得較佳:::: 該數種數位影像掏取系統, 見之數位取像“、:相機(數位相機為較常 1豕衣置故本况明書後段的說明均以童WtWq n ί "J V ^^ ^ ^pc c-) ^ ^ Λ =糸流手機或PDA上之取像裝置及一切經過鏡藤^= 數::像之取像裝置中,㊣能價察出攝 否直立,並依照偵測結果對影像處理做調整,,f疋 相機的使用者獲得效果較佳的影像。 9吏數位 為達成上述目的,本發明提供一種在數位 統中處理影像的方法…,價測數位影像揭取 攝時是否為直立。接著’根據上述偵測結果調相針 複數影像處理單元以進行影像處理後產生影像資^的 此外,當上述影像處理為自動曝光(AE)機’= 平衡(AWB)機制或自動對焦(AF)機制時,根據上述⑨動^ 果調整相對應的複數影像處理單元以進行旦彡 、Μ… 1T〜像處理的步驟0790-9198TWF (η 1); PT-02002; ELLEN.p t d p. 4 200414078 V. Description of the invention (2) — most advantages. Too invented Gantu Β „μ w did not directly access the shooting results as upright μ digital photo files for easy viewing. The users who are standing up can enjoy the function of correct access for the first time * 0 shi ^ upright, ... The content of the invention can be directly rotated by the existing software. * Ii: = J 目: i: i 出-a kind of digital image acquisition system s X Α ^, the moon dagger is detected by the digital image acquisition system shooting Η We will not adjust the image processing according to the detection results, and "better in the case of increased processing time and chip cost :::: This digital image extraction system, see the digital image acquisition "、: Camera (digital cameras are more commonly used) so the description in the latter part of this book is based on the child WtWq n ί " JV ^^ ^ ^ pc c-) ^ ^ Λ = the image on the mobile phone or PDA Device and everything passed through the mirror ^ = Count :: In the image capturing device, you can detect whether the camera is upright and adjust the image processing according to the detection results. F 疋 Camera users get better results In order to achieve the above-mentioned object, the present invention provides a method for processing in the digital system. The method of imaging is to measure whether the digital image is upright when it is taken. Then, according to the above detection results, a phase-modulation complex image processing unit is used to generate image data after image processing. In addition, when the image processing is automatic exposure (AE) machine '= When the balance (AWB) mechanism or the autofocus (AF) mechanism, adjust the corresponding plural image processing unit according to the above-mentioned automatic results 彡 to perform image processing, M ... 1T ~ image processing steps
0790-9198TWF(η I);ΡΤ-02002;ELLEN.p t d 第5頁 200414078 五、發明說明(3) 更包括·於偵測到該數位相機在拍攝時為直立時,調整分 ,畫面設置的大小及位置以及用以分析所拍攝之影像的演 算法及參數設定。當上述影像處理為内插機制或影像縮放 機制時’根據上述偵測結果調整相對應的複數影像處理單 元以進行影像處理的步驟更包括··根據上述偵測結果做架 構的調整並進行不同的參數設定以進行不同的處理。當上 述影像處理為邊角加強機制時,根據上述偵測結果調整相 對應的複數影像處理單元以進行影像處理的步驟更包括: 根據上述偵測結果針對水平方向及垂直方向進行不同的邊 角加強機制。當上述影像處理為壓縮機制時,根據上述 測結果調整相對應的避料旦w^田抑- 、 W〜日]设數影像處理早兀以進行影像處理的 $驟更包括根據上述偵測結果做架構的調 上述目 影像操 ,用於 統在拍 偵測結 並產生 偵測裝 括影像 像以辨 本發明 下文特 還提供 測裝置 像。偵 直立。 應的複 出。 件配合, 置,利 機在拍 他目的 並配合 為達成 統,其包括 像擷取裝置 影像擷取系 測裝置中的 行影像處理 此外, 裝置也可包 分析拍攝影 為了讓 明顯易懂, 取裝置、偵 獲取拍攝影 攝時是否為 果調整相對 影像資料輸 置可運用機 特性分析裝 別该數位相 之上述和其 舉實施例, 一種數位影 及影像處理 測裝置用於 影像處理裝 數影像處理 物理原理完 用影像特性 攝時是否為 、特徵、和 所附圖示, 裝置。I 偵測數i 置根據十 單元以支 成。偵 分析裝j 直立。0790-9198TWF (η I); ΡΤ-02002; ELLEN.ptd Page 5 200414078 V. Description of the Invention (3) Includes: When it is detected that the digital camera is upright when shooting, adjust the points and the size of the screen settings And location, as well as algorithms and parameter settings for analyzing the captured images. When the above-mentioned image processing is an interpolation mechanism or an image scaling mechanism, the steps of adjusting a corresponding plurality of image processing units to perform image processing according to the above detection results further include: adjusting the architecture according to the above detection results and performing different Set parameters for different processing. When the image processing is a corner enhancement mechanism, adjusting the corresponding plurality of image processing units to perform image processing according to the detection results further includes: performing different corner enhancements for the horizontal and vertical directions according to the detection results. mechanism. When the above-mentioned image processing is a compression mechanism, the corresponding avoidance data is adjusted according to the above-mentioned measurement results. The setting of the number of image processing steps for image processing further includes the above-mentioned detection results. The structure of the above-mentioned image operation is used to collect the detection knot and generate a detection image including the detection device image. Detective erect. Should come back. In order to achieve the goal, the opportunity is to take advantage of the software, including the image processing of the image capture device, the image capture system, and the line image processing in the measurement device. In addition, the device can also include analysis and photography. Device, detecting whether or not to adjust the relative image data input when taking a photo. The above and other embodiments of the digital phase can be analyzed by using machine characteristics. A digital imaging and image processing measuring device is used for image processing and loading images. Handle whether the physical characteristics of the image principle, the characteristics, and the attached drawings when using the physical principle are completed. The I detection number i is set based on ten units. Detective analysis equipment j is upright.
200414078 —-—----- 五、發明說明(4) 明如下: 實施方式 太+ ΐ ^圖係表示本發明之數位影像擷取系統中處理影像 否氧古L私圖。首先,偵測數位影像擷取系統在拍攝時是 庠的…i步驟S102)。接著,根據上述偵測結果調整相對 :Γ牛=像處理單元以進行影像處理後產生影像資料輪 =實=之本Λ明還第另,^ 數位影像擷取V统範例的第』^^ 位攝位影像擷取系統可應用在數位相機、數 機:二 腦之相機(pc㈤、監視攝影系統、手 影像之取Λ取Λ裝置及一切經過鏡頭和感應器取得數位 明,灸考ir/v/此以應用在數位相機中為例進行說 (圖中“貝示)中Λ影像,系統200應用於數位相機 〇〇η Λ ,、己括影像擷取裝置2 1 0、偵測裝置 衫地理裝置22〇及後端影像處理裝置240。影傻押 (s衣置21 二可一包括如:鏡頭、光圈、快門及光感測器 ensor專το件,用於獲取拍攝影像 於偵測數位相機在拍攝時是否為直立:偵測以2:°用 ^ ^ ^ ^3 « 0 4 a t £22〇 〇中的偵測結果調整相對應的複數影像處理元= 影像處理,影像處理裝置22 0將影像處理後所產: = ,入後J影像處理裝置24。經過其他與直 ;:= 端影像處理後產生影像資料ί。輸出。 攝“,、關之後 ΪΜ 0790-9198TWF(η 1);ΡΤ-02002;ELLEN.p t d200414078 —-—----- V. Description of the invention (4) The description is as follows: Implementation mode Too + ΐ ^ The picture shows the processing image in the digital image capture system of the present invention. First, it is detected that the digital image capturing system is sloppy when shooting ... i Step S102). Next, adjust the relative according to the above detection results: Γ 牛 = Image processing unit to generate image data after image processing. Round = Real = This is also the third, ^^^ of the digital image capture V system example The position image acquisition system can be applied to digital cameras, digital cameras: cameras of the two brains (pc 摄影, surveillance photography systems, hand image acquisition Λ and Λ devices, and all digital images obtained through the lens and sensor, moxibustion test ir / v / This is taken as an example in a digital camera ("being shown" in the figure). The Λ image is used in the system 200. The system 200 is applied to the digital camera 〇〇η Λ, the image capture device 2 1 0, the detection device shirt geography Device 22〇 and back-end image processing device 240. Shadow fools (s clothing set 21 can include such as: lens, aperture, shutter and light sensor sensor special components, used to obtain captured images for detection of digital cameras Whether it is upright when shooting: Detect the corresponding complex image processing element corresponding to the detection result in ^ ^ ^ ^ 3 «0 4 at £ 22〇〇 = image processing, image processing device 22 0 will Produced after image processing: =, after entering J image processing device 24. After He straight;: = rear end of the image processing to generate image data output ί subject ",, after turning ΪΜ 0790-9198TWF (η 1); ΡΤ-02002; ELLEN.p t d..
第7頁 200414078 五、發明說明(5) 要注意的是第2圖中的數位影像擷取系統2 〇 〇只是實現 第1圖之方法的範例,偵測裝置2 3 〇除了可以獨立運作或讀 取2 1 0輸出資訊加以判斷外,偵測裝置2 3 〇也可讀取影像處 理裝置2 2 0中或後段輸出之資訊利用其判斷是否直立,再 將判斷結果回授至220。 影像處理裝置2 2 0具有多種影像處理單元可進行多種 影像處理機制,有許多的影像處理機制包括自動曝光 (AE)、自動白平衡(AWB)、自動對焦(AF)、内插、影像縮 放、邊角加強及壓縮等都會依造垂直與水平方向的不同做 不同或不對稱的處理。參考第3圖,第3圖為第2圖之數位 影像擷取系統2 0 0進行多種影像處理機制的示意圖。如圖 所示,影像擷取裝置210包括鏡頭211、光圈212、快門213 及電荷耦合元件(CCD) 214等元件,用於獲取拍攝影像 Ii。影像處理裝置220包括自動曝光(ae)單元221、自動白 平衡(AWB)單元2 22、自動對焦(AF)單元223、内插單元 2 24、影像縮放單元226、邊角加強單元225及壓縮單元22了 分別進行自動曝光、自動白平衡、自動對焦、内插、影像 縮放、邊角加強及壓縮等機制。 下文將分別說明這些影像處理機制: 1 ·自動曝光(AE): 糊、羅Iff f動1光機制常需要開分割晝面(window)再用模 容U:y2iC)或其他更高階的方式去分析影像内 數位;te Μ /拍棬2曝光資料。因此於偵測裝置2 30偵測到 日寸為直立時,影像處理裝置22〇中的自動Page 7 200414078 V. Description of the invention (5) It should be noted that the digital image capture system 2 in Figure 2 is only an example of the method of implementing Figure 1. The detection device 2 3 can be operated independently or read In addition to taking 2 10 output information for judgment, the detection device 2 3 0 can also read the information output from the image processing device 2 20 or later to use it to judge whether it is upright, and then return the judgment result to 220. The image processing device 220 has a variety of image processing units that can perform a variety of image processing mechanisms. There are many image processing mechanisms including auto exposure (AE), auto white balance (AWB), auto focus (AF), interpolation, image scaling, Corner strengthening and compression will be processed differently or asymmetrically depending on the vertical and horizontal directions. Referring to FIG. 3, FIG. 3 is a schematic diagram of the digital image capturing system 2000 performing multiple image processing mechanisms. As shown in the figure, the image capturing device 210 includes elements such as a lens 211, an aperture 212, a shutter 213, and a charge coupled device (CCD) 214, and is used to acquire a captured image Ii. The image processing device 220 includes an auto exposure (ae) unit 221, an auto white balance (AWB) unit 2 22, an auto focus (AF) unit 223, an interpolation unit 2 24, an image scaling unit 226, a corner enhancement unit 225, and a compression unit 22 mechanisms including auto exposure, auto white balance, auto focus, interpolation, image scaling, corner enhancement, and compression are separately performed. The following will explain these image processing mechanisms respectively: 1 · Auto Exposure (AE): Paste, Lo, Iff, 1 light mechanism often needs to open the daylight (window) and then use the volume U: y2iC) or other higher order methods Analyze the digital in the image; te Μ / beat 2 exposure data. Therefore, when the detecting device 2 30 detects that the sun is upright, the image processing device 22
200414078 五、發明說明(6) 一 " · ' ' 曝光單元221調整分割晝面設置的大小及位置以及用以分 析所拍攝之影像的演算法及參數設定。像是光源出現位置 f機率會隨著直立拍照與否不同,因而模糊邏輯的參數或 疋=光月光之自動設定均可因而調整。此外我們也將如何 開刀』晝面舉個例子,如第4圖所示:第4 a圖為一般時候 (即數位相機在拍攝時不為直立時)所開的分割畫面,第4b Θ為偵測到數位相機在拍攝時為直立後所開的分割晝面 (直立有兩個可能的方向,在此僅舉一種為例)。 2 ·自動白平衡(AWB) ·· “現有自動白平衡機制也常需要開分割畫面(window)再 =挺糊邏輯(fuzzy 1〇gic)或其他更高階的方式去分析影 侬内容,以取得正確的白平衡資料,也因此於偵測裝置 偵測到數位相機在拍攝時為直立時,影像處理裝置2 2 〇 、的自動白平衡單元222調整分割晝面設置的大小及位置 、、及用以刀析所拍攝之影像的演算法及參數設定。像是光 ^ t ^見位置的機率,或是白色物體存在位置之機率分布均 Ib ϊ ΐ直立拍照與否不同,因而模糊邏輯的參數或其他高 Ρ白肩异法均會因而調整。此外我們也將如何開分割晝面舉 個=子’如第5圖所示:第5 ^為一般時候(即數位相機在拍 攝^不為直立時)所開的分割畫面,第5 b圖為偵測到數位 相機在拍攝為直立後所開的分割晝面(直立有兩個可能的 方向’在此僅舉一種為例)。 3 ·自動對焦(AF): 見有自動對焦也常需要開分割晝面(wind〇w)再用模糊200414078 V. Description of the invention (6)-"'The exposure unit 221 adjusts the size and position of the segmentation day setting and the algorithm and parameter settings for analyzing the captured image. For example, the position of the light source f will vary with the upright photo, so the parameters of the fuzzy logic or the automatic setting of 疋 = light moonlight can be adjusted accordingly. In addition, we will also give an example of how to operate the knife. ”As shown in Figure 4, Figure 4a is a split screen opened at ordinary times (that is, when the digital camera is not upright when shooting), and 4b Θ is the detection It was detected that the digital camera opened the divided daylight surface when it was standing upright (there are two possible directions for uprighting, here is just one example). 2 · Automatic White Balance (AWB) · "The existing automatic white balance mechanism often needs to split the window (fuzzy 10gic) or other higher-level methods to analyze the content of the video lens to obtain The correct white balance data, therefore, when the detection device detects that the digital camera is upright during shooting, the automatic white balance unit 222 of the image processing device 2 2 0, adjusts the size and position of the divided daylight setting, and uses the The algorithm and parameter settings of the captured image are analyzed with a knife. For example, the probability of seeing the position of light ^ t ^, or the distribution of the probability of the presence of a white object are all Ib ϊ ΐ The upright photo is different, so the parameters of the fuzzy logic or Other high-P white-shoulder methods will be adjusted accordingly. In addition, we will also divide how to divide the daytime surface to give an example = as shown in Figure 5: 5 ^ is the normal time (that is, when the digital camera is not shooting upright ^ ) The split screen opened. Figure 5b shows the split daylight plane that was opened after the digital camera was detected to be standing upright (there are two possible directions for uprightness; here is just one example). 3 · Autofocus (AF): See you since Focus often requires split open surface day (wind〇w) then Fuzzy
〇790-9l98TW(nl);Pr.〇2〇〇2;ELLENiPtd 第9頁 200414078 五、發明說明(7) ' ------ 邏輯(fuzzy logic)或其他更高階的方式去分析影像内 容,以取得正確的對焦資料,也因此於偵測萝 ^〇790-9l98TW (nl); Pr.〇2〇〇2; ELLENiPtd Page 9 200414078 V. Description of the invention (7) '------ logic (fuzzy logic) or other higher-level ways to analyze the content of the image In order to obtain the correct focus data, so it is also useful for detecting ^
到數位相機在拍攝時為直立時,影像處理裝w 、、J 動對焦早元2 23調整分割晝面設置的大小及位 直以及用以 分析所拍攝之影像的演算法及參數設定。像 現位置的機率,或是背景出現位置之機率·均會隨著是 出 立拍照而不同,因而模糊邏輯參數之設定及‘ =^ 5 e 法均需因而調整。此外我們也將如何開分割:自/貝异 …Ϊ面舉個例 子,如第6圖所示:第6a圖為一般時候(即數位相機在拍 時不為直立時)所開的分割晝面,第6b圖為偵測到數位相 機在拍攝時為直立後所開的分割畫面(直立有兩個可能 方向,在此僅舉一種為例)。 月匕、 4 ·内插: 數位相機内充斥著各種内插處理,有些内插處理會依 垂直水平有不同的標準及參數設定或根本用不同方法7如 果是前者,只需要簡單的重新改變設定,後者就必須將; 種方法同時計算,再以選擇器的方式擇一使用。因此,影 像處理裝置2 2 0中的内插單元224根據偵測裝置2 3〇中的偵^ 測結果做架構的調整並進行不同的參數設定以進行不同的 内插機制。舉例而言,有研究指出人,眼對水平方向的取樣 頻率較高,也就是較敏感,因此在内插時,可使用較複雜 的二階内插法(B-spline)(參考Michael Unser,Akram Aldroubi, and Murray Eden, MB-Sp1ine SignalWhen the digital camera is upright when shooting, the image processing equipment w,, J, dynamic focus early element 2 23 adjust the size and alignment of the split daytime setting and the algorithm and parameter settings for analyzing the captured image. The probability of the image position or the background position will vary depending on the photo taken. Therefore, the setting of the fuzzy logic parameters and the ‘= ^ 5 e method need to be adjusted accordingly. In addition, we will also open the split: self / beijing ... For example, as shown in Figure 6: Figure 6a is the general day (that is, when the digital camera is not upright when shooting) split day Figure 6b shows the split screen when the digital camera is detected to be upright during shooting (there are two possible directions for upright, here is just one example). Moon Dagger, 4 · Interpolation: Digital cameras are full of various interpolation processes. Some interpolation processes may have different standards and parameter settings depending on vertical and horizontal levels or use different methods at all. 7 If it is the former, simply change the setting. , The latter must be calculated at the same time, and then use one of the selectors. Therefore, the interpolation unit 224 in the image processing device 220 performs structural adjustment according to the detection result in the detection device 230 and performs different parameter settings to perform different interpolation mechanisms. For example, some studies have pointed out that the eye has a higher sampling frequency in the horizontal direction, that is, it is more sensitive. Therefore, when interpolating, a more complex second-order interpolation method (B-spline) can be used (see Michael Unser, Akram Aldroubi, and Murray Eden, MB-Sp1ine Signal
Processing: Part II-Efficient Design andProcessing: Part II-Efficient Design and
0790-9198TWF(n1);PT-02002;ELLEN.ptd 第10頁 200414078 五、發明說明(8)0790-9198TWF (n1); PT-02002; ELLEN.ptd Page 10 200414078 V. Description of the invention (8)
Application, Signal Processing, IEEE Transactions on , Volume: 41 Issue: 2 , Feb. 1993 Page(s): 834 -848)以保持較多水平方向高頻訊號,而垂直方向使用較 平滑變化的内插法(bilinear interpolation)(參考 Thomas M. Lehmann, Claudia Gonner, and Klaus Spitzer, "Survey: Interpolation Methods in Medical Image Processing M, Medical Imaging, IEEE Transactions on , Volume: 18 Issue: 11 , Nov. 1999 Page(s ) : 1 0 49 - 1 075 ) 〇 5 ·影像縮放: 數位變焦或是檔案大小的變化常需應用影像縮放的技 巧’其中有些處理會依垂直水平有不同的標準及參數設定 或根本用不同方法,如果是前者,只需要簡單的重新改變 設定’後者就必須將兩種方法同時計算,再以選擇器的方 式擇一使用。因此,影像處理裝置2 20中的影像縮放單元 2 2 6根據偵測裝置2 3 〇中的偵測結果做架構的調整並進行不 同的參數設定以進行不同的影像縮放。舉例而言,如前所 述’人眼在水平方向取樣頻率較高,以數位訊號處理(DSP )原理而言’取樣頻率將直接影像到低通濾波器的理想截 止頻率’在做影像縮放時,我們採用的c u b i c s p 1 i n e的方 式(參考 Jong-Ki Han and Seung-Ung Baek,"Parametric Cubic Convolution Scaler For Enlargement And Reduction of Image'1 , Consumer Electronics, IEEE Transactions on,Volume: 46 Issue: 2,May 2000Application, Signal Processing, IEEE Transactions on, Volume: 41 Issue: 2, Feb. 1993 Page (s): 834 -848) in order to maintain more high-frequency signals in the horizontal direction, while using a smoother variation interpolation method in the vertical direction ( bilinear interpolation) (see Thomas M. Lehmann, Claudia Gonner, and Klaus Spitzer, " Survey: Interpolation Methods in Medical Image Processing M, Medical Imaging, IEEE Transactions on, Volume: 18 Issue: 11, Nov. 1999 Page (s) : 1 0 49-1 075) 〇5 · Image scaling: Digital zoom or file size changes often require the application of image scaling techniques. 'Some of these processes will have different standards and parameter settings depending on vertical and horizontal levels, or use different methods at all, If it is the former, it is only necessary to simply change the setting again. The latter must calculate both methods at the same time, and then use one of them as a selector. Therefore, the image scaling unit 2 2 6 in the image processing device 2 20 adjusts the architecture according to the detection result in the detection device 2 3 0 and sets different parameter settings to perform different image scaling. For example, as mentioned earlier, 'the human eye has a higher sampling frequency in the horizontal direction, and based on the principle of digital signal processing (DSP)', the 'sampling frequency will directly image the ideal cut-off frequency of the low-pass filter' when doing image scaling We use the cubicsp 1 ine method (refer to Jong-Ki Han and Seung-Ung Baek, " Parametric Cubic Convolution Scaler For Enlargement And Reduction of Image'1, Consumer Electronics, IEEE Transactions on, Volume: 46 Issue: 2 ,, May 2000
0790-9198TWF(η 1);PT-02002;ELLEN.ptd 第11頁 200414078 五、發明說明(9) — ----0790-9198TWF (η 1); PT-02002; ELLEN.ptd Page 11 200414078 V. Description of the invention (9) — ----
Page(s): 24 7 -25 6)此方法有一個簡單的參數可決定濾 波器之頻譜分布及相對應之係數,因此在水平方向我們〜可 以使用含有較多高頻成份的濾波器之係數,在垂直方向, 使7將高頻過濾較乾淨的濾波器係數,以避免效果失真或 混疊(a 1 i a s i n g)發生。 6 ·邊角加強: 影像資料若太過模糊會做邊角加強,這樣的加強也有 可能需要對垂直與水平方向做不同的處理,因此影像處理 裝置22 0中的邊角加強單元225根據偵測裝置23〇中的偵測 結果針對水平方向及垂直方向進行不同程度的邊角加強機 制。舉例而言,如上所述人眼在垂直方向較不敏感,因此 在垂直方向加上較強比率的加強值,以達到垂直與水平方 向清晰度感覺一致。若直立拍攝時無做對應改變,將會讓 人感覺照片水平方向的清晰度明顯較垂直為佳。幾乎^有 的邊角加強方法均會有一變數(加強比率)決定加強的強 度,我們僅需改變此比率值即可。 7 ·壓縮: 士現有壓縮標準常對垂直水平做不同處理,因此影像處 理裝置2-20中的壓縮單元224根據價測裝置23〇中的偵測社 f做架構的調整以進行不同的壓縮機,制。以靜態影像壓縮 祆準(J PEG )為例,取樣的方式、掃描離散餘弦變換係數 〔^can DCT coefficient)的順序以及值之訂 定,均是垂直與水平方不對等的處理。其中q表可因應直° 立拍攝與否,將係數依垂直水平方向對調而得到較佳品質Page (s): 24 7 -25 6) This method has a simple parameter to determine the spectral distribution of the filter and the corresponding coefficients, so in the horizontal direction we can use the coefficients of filters with more high-frequency components In the vertical direction, make 7 a high-frequency filter with a cleaner filter coefficient to avoid effect distortion or aliasing (a 1 iasing). 6 · Corner Enhancement: If the image data is too blurry, corner enhancement will be performed. Such enhancement may also require different processing for vertical and horizontal directions. Therefore, the corner enhancement unit 225 in the image processing device 220 is based on the detection. The detection result in the device 23 performs different degrees of corner strengthening mechanisms for the horizontal direction and the vertical direction. For example, as mentioned above, the human eye is less sensitive in the vertical direction, so a stronger ratio of the enhancement value is added in the vertical direction to achieve the same vertical and horizontal sharpness. If you do not make corresponding changes when shooting upright, it will make people feel that the sharpness in the horizontal direction is obviously better than vertical. Almost every corner strengthening method will have a variable (strengthening ratio) to determine the strength of the strengthening. We only need to change the value of this ratio. 7 · Compression: The existing compression standards often do different processing for vertical and horizontal. Therefore, the compression unit 224 in the image processing device 2-20 adjusts the structure according to the detection agency f in the price measurement device 23 to perform different compressors. ,system. Taking the static image compression standard (J PEG) as an example, the sampling method, the order of scanning the discrete cosine transform coefficient [^ can DCT coefficient], and the setting of the values are all treated unequal vertically and horizontally. The q table can be used for vertical or horizontal shooting, and the coefficients can be adjusted according to the vertical and horizontal directions to obtain better quality.
0790-9198TWF(nl);PT-02002;ELLEN.ptd 第12頁 200414078 五、發明說明(ίο) 的壓縮照片。 偵測裝置2 3 0用於偵測數位相機在拍 +日 立,偵測裝置23 0可運用機件加上物理原理=疋否為直 這種偵測裝置範例的示意圖,如第7圖所示几成,第7圖為 放於數位相機7 0 0的某一裝置7 1 〇内,於此^以小鐵球7 1 2 加上感測器714 ’則可利用地心引力的原理氏置710的:周 資料輕易決定數位相機7 〇〇是直立或是橫擺配上感應器的 此外,若不希望如第7圖所示增加機 雜度,也可用影像分析的方式,直接抓的成本與複 斷是否為直立拍攝,當然這樣的方式 ^特性分析判 險,但當其判斷錯時結果將與不採用二錯誤的風 影像品質’故影像分析式的判斷 ;;日:有著類似的 方式通常是透過實驗觀察以及假設,歸^用^。這樣的 與水平方向的影像特性,經過這歧 =口为辨垂直 別影像是直立或橫擺,例如:我分析,可辨 置(影像中最亮的部份通常都是 判斷光源的位 时,故可大致找出光源:置t原前色有-定 冋頻成份分布方向、物俨 刀布狀況、邊界 綜合起來判斷拍攝景物與“相機:相等ί性均可 這種偵测裝置範例的音 ^方位。弟8圖為 可包括影像特性分析匕二如利圖用%特^裝置咖内 分析拍攝影像以辨別數 攝?時^性力析I置810 ^ ^ ^ s ^ ^ # ^ ^ ^ £ ^ t Λ^ ^ ^ ^ 罝汉則不力布狀况,影像特性分 0790-9198TWF⑻);ρτ_ 〇2002;ELLEN.ptd 第13頁 被拍攝物體 方向,以幫助 實現此方法的 是否直立,並 在不增加處理 影像效果的目 然其並非用以 本發明之精神 本發明之保護 200414078 五、發明說明(11) 析裝置810亦可分析邊界高頻成份分布方向、 移動之方向及因為手部晃動造成影像晃動之 辨別數位相機在拍攝時是否為直立。 “上所述,本發明之處理影像的方法及 數位影像擷取系統’其能偵察出相機拍攝時 依照偵測結果對影像處理做調整,並且能 時間與晶片成本的情況下,達到獲得較佳 的。 雖然本發明已以較佳實施例揭露如上, 限定本發明,任何熟習此技藝者,在不脫離 t範圍内,當可作些許之更動與潤飾,因此 範圍當視後附之申請專利範圍所界定者為準0790-9198TWF (nl); PT-02002; ELLEN.ptd page 12 200414078 V. Compressed photo of invention description (ίο). The detection device 2 3 0 is used to detect that the digital camera is shooting + Hitachi, and the detection device 23 0 can use the mechanism plus the physical principle = 疋 Is it a schematic diagram of an example of such a detection device, as shown in Figure 7 Something, figure 7 is placed in a device 7 1 0 of the digital camera 7 0. Here, using the small iron ball 7 1 2 and the sensor 714 ', the principle of gravity can be used. 710: Zhou data easily determines whether the digital camera 7000 is upright or horizontally equipped with a sensor. In addition, if you do not want to increase the complexity of the camera as shown in Figure 7, you can also use image analysis to directly capture the cost It is of course such a way to determine whether the shooting is upright ^ characteristic analysis risk, but when the judgment is wrong, the result will be the same as the image analysis type judgment without using two wrong wind image quality; It is through experimental observations and assumptions that ^ is used ^. The image characteristics of this and the horizontal direction, after this difference = to identify the vertical image is upright or sideways, for example: I analyze, can be distinguished (the brightest part of the image is usually the position of the light source, Therefore, we can roughly find the light source: set the original front color-set the frequency component distribution direction, the material and knife condition, and the boundary to determine the shooting scene and the "camera: equality". ^ Orientation. The figure 8 can include the analysis of the image characteristics. If you want to use the %% ^ device to analyze the captured image to identify the number of shots, the analysis of the force is set to 810 ^ ^ ^ s ^ ^ # ^ ^ ^ £ ^ t Λ ^ ^ ^ ^ 罝 Han is not able to deal with the situation, the image characteristics are 0790-9198TWF⑻); ρτ_ 〇2002; ELLEN.ptd Page 13 The direction of the object to be photographed to help achieve this method of upright, and It does not increase the effect of processing the image, but it is not used to protect the spirit of the present invention. 200414078 V. Description of the invention (11) The analysis device 810 can also analyze the direction of the boundary high-frequency component distribution, the direction of movement, and the hand movement. Discrimination of image shake Whether the camera is upright when shooting. "As mentioned above, the image processing method and digital image capture system of the present invention 'can detect the adjustment of image processing according to the detection results when the camera is shooting, and can reduce time and chip cost. The case achieves better. Although the present invention has been disclosed in the preferred embodiment as described above, the present invention is limited. Any person skilled in this art can make some changes and retouch without departing from the scope of t. Therefore, the scope shall be defined by the scope of the attached patent application. Whichever comes first
0790-9198TWF(nl);PT-02002;ELLEN.ptd 第14頁 200414078 圖式簡單說明 第1圖係表示本發明之數位影像擷取系統中處理影像 方法的流程圖。 第2圖係表示實現第1圖之方法的數位影像擷取系統範 例的示意圖。 第3圖係表示第2圖之數位影像擷取系統進行多種影像 處理機制的示意圖。 第4 a圖係表示數位相機在一般時候進行自動曝光機制 所開的分割畫面範例的示意圖。 第4b圖係表示偵測到數位相機在拍攝時為直立後進行 自動曝光機制所開的分割晝面範例的示意圖。 第5a圖係表示數位相機在一般時候進行自動白平衡機 制所開的分割晝面範例的示意圖。 第5b圖係表示偵測到數位相機在拍攝時為直立後進行 自動白平衡機制所開的分割晝面範例的示意圖。 第6 a圖係表示數位相機在一般時候進行自動對焦機制 所開的分割晝面範例的示意圖。 第6b圖係表示偵測到數位相機在拍攝時為直立後進行 自動對焦機制所開的分割晝面範例的示意圖。 第7圖係表示本發明實施例之偵測裝置範例的示意 圖。 , 第8圖係表示本發明實施例之偵測裝置另一範例的示 意圖。 符號說明: 2 0 0〜數位影像擷取系統;0790-9198TWF (nl); PT-02002; ELLEN.ptd Page 14 200414078 Brief Description of Drawings Figure 1 is a flowchart showing a method for processing images in the digital image capturing system of the present invention. Fig. 2 is a schematic diagram showing an example of a digital image acquisition system implementing the method of Fig. 1. Fig. 3 is a schematic diagram showing a variety of image processing mechanisms performed by the digital image capturing system of Fig. 2. Figure 4a is a schematic diagram showing an example of a split screen that a digital camera performs an automatic exposure mechanism at ordinary times. Figure 4b is a schematic diagram showing an example of a segmented daylight surface that is detected by a digital camera when the digital camera is in an upright position and then performs an automatic exposure mechanism. Fig. 5a is a schematic diagram showing an example of a segmented daylight surface that a digital camera performs with an automatic white balance mechanism at ordinary times. Figure 5b is a schematic diagram showing an example of a segmented daylight surface that is detected when the digital camera detects that the digital camera is in the upright position and performs an automatic white balance mechanism. Figure 6a is a schematic diagram showing an example of a segmented daylight surface that a digital camera performs with an autofocus mechanism at ordinary times. Fig. 6b is a schematic diagram showing an example of a segmented daylight surface that is detected by a digital camera when the autofocus mechanism is performed after the digital camera is upright. Fig. 7 is a schematic diagram showing an example of a detection device according to an embodiment of the present invention. FIG. 8 is a schematic diagram showing another example of the detection device according to the embodiment of the present invention. Symbol description: 2 0 0 ~ digital image capture system;
0790-9198TWF(nl);PT-02002;ELLEN.ptd 第15頁 200414078 圖式簡單說明 2 1 0〜影像擷取裝置; 2 3 0、8 0 0〜偵測裝置; 2 2 0〜影像處理裝置; 24 0〜後端影像處理裝置; L〜拍攝影像; I。〜影像資料; 2 1 1〜鏡頭; 21 2〜光圈; 2 1 3〜快門; 214〜電荷搞合元件; 221〜自動曝光單元; 22 2〜自動白平衡單元; 2 2 3〜自動對焦單元; 224〜内插單元; 2 2 6〜影像縮放單元; 2 2 5〜邊角加強單元; 227〜壓縮單元; 7 1 2〜小鐵球; 7 0 0〜數位相機; 7 1 0〜裝置; 7 1 4〜感測器; 8 1 0〜影像特性分析裝置。0790-9198TWF (nl); PT-02002; ELLEN.ptd page 15 200414078 Schematic description of 2 1 0 ~ image capture device; 2 3 0, 8 0 0 ~ detection device; 2 2 0 ~ image processing device ; 24 0 ~ back-end image processing device; L ~ shooting image; I. ~ Image data; 2 1 1 ~ Lens; 21 2 ~ Aperture; 2 1 3 ~ Shutter; 214 ~ Charge engaging element; 221 ~ Auto exposure unit; 22 2 ~ Auto white balance unit; 2 2 3 ~ Auto focus unit; 224 ~ interpolation unit; 2 2 6 ~ image scaling unit; 2 2 5 ~ corner enhancement unit; 227 ~ compression unit; 7 1 2 ~ small iron ball; 7 0 0 ~ digital camera; 7 1 0 ~ device; 7 1 4 ~ sensor; 8 1 0 ~ image characteristic analysis device.
0790-9198TWF(nl);PT-02002;ELLEN.ptd 第16頁0790-9198TWF (nl); PT-02002; ELLEN.ptd Page 16
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