1243953 九、發明說明·· 【發明所屬之技術領域】 二本發明係有關於一種數位相機，尤其是有關於一種可 自訂對焦範圍之數位相機，以及其自訂對焦範圍的方法。 【先前技術】 在今日，數位相機的使用愈來愈普遍，然目前一般習 知的對焦數位相機，都是内定對焦範圍或是在固定位= 自動對焦（Auto Focus)，而沒有提供使用者自訂對焦範 常f位相機所提供的對焦方法係利用數位信號處理 為OSP)计异所擷取的影像之全域對比值，計算全域對比值 之平均值作為全域對焦，或者取該影像的全 對焦點，以完成自動對焦。 ‘，、、M乍為 ▲或者，另外還有一種是利用特殊的對焦鏡頭，以達 改變對焦，如美國專利第6, 686, 577號所述，其内容係針 =對焦範圍傾斜（incl inatiGn)時，會降低偵測焦點的精讀 度，因此其利用分離鏡頭（separat〇r lens)，以校正鏡頭 Ϊ提尚焦點偵測的精確度。可是這個美國 專利狀686, 577號並未脫離焦點位在中心的技術，因此仍 無法改變焦點位置。 此外現代人照相時，多要求創新 的人物放到晝面之一隅，而中麥放w H # T…、 以使用者拍照時，實際上US::其他的背景’所 只丁上J月匕疋希望在畫面一旁的人物可 以是清晰的（經過對焦作業），而中水 是清晰的。因此實在有4)提:一==⑽ 捉仏種具有可自訂對焦範圍 1243953 而 #、、、 之數位相機，尤其是可供使用者任意自訂 須更換鏡頭的數位相機。 【發明内容】 種可自訂對焦 可供使用者任 鑑於先前技術之不足，本發明 範圍之數位相機及其自訂對焦範圍 2 意地選擇對焦範圍。 法， 該數位相機包含有處理器、取得數τ:ς=;位相機: 組、顯示數位影像用的顯示器、對隹2掏取板 接收稷數“之輸人讀制處理器之運作的 八特徵在於：本發明的減指令可供 料内之-對焦範圍，數位相機再藉由數位信； 算所選的對焦範圍之對比值，最後對 =理^十 對焦範圍之對比值進行對焦的動作。 、所遥的 此外，本發明還提供一種數位相機 法，該方法包含·· T…、乾y之方 以供使用者任意選擇數位影像 顯示一數位影像； 接收複數指令之輸入 内之任一對焦範圍； 計算所選的對焦範圍之對比值；以及 針對該對比值進行對焦。 就是在====== 1243953 而°十异该對焦範圍之對比值則是從該全域對比值 中擷取該對焦範圍之對比值。 【實施方式】 為讓本發明之上述和其他目的、特徵、和優點能更明 ”、、頁易魔，下文特舉出較佳實施例，並配合所附圖式，作詳 細說明如下。 σ 。月參考圖1與圖2，分別顯示依據本發明之一實施例之 數=相機之系統方塊示意圖與數位相機之使用者端的結構 不意圖。本發明係提供一種可供使用者自訂對焦範圍之數 2機1，其包括：處理器U、用以取得數位影像的影像擷 旲、.且12 (例如CCD )、可顯示數位影像的顯示器丨3、用來 田的對焦衷置15、以及可接收複數指令之輸人以控制處 =之運作的編輯介面i[其中對焦裝置15、顯示器Η、 〜像擷取杈組丨2、以及編輯介面丨4係分別都與處理哭η 電性相連。 ^發明之編輯介面14 (如圖3β或圖％所示）可接收複 輸人’以控制該處理器11之運作，供使用者透 介面14任意地選擇對焦範圍（如圖3A或圖％所 不的^33)。例如使用者可藉由輸入鍵14〇輸入指令， =控制„亥處理态丨丨之運作（例如以軟體程式控制），以 冗j任％、地選擇對焦範圍33。在選定對焦範圍μ之後， ::由數位相機i的數位信號處理器（咖)16計算該對 =圍33之對比值（contrastvalue)。此時，對焦裝置 叫包括透鏡鏡頭及步進馬達等等）即可針對對焦範圍 1243953 3丄=比：進行對焦的動作(例如以處理器11計算鏡頭 的距離以控制步進馬達的步進 請參考圖4,其係依據本發明之一杏 圍之方法流程示意圖。使用者 Λ ° 、…轭 位_會顯示數位影像 = 始 用:像擷取模組12 (例如CCD)擷取 實:: :中,位影像3。的對焦範圍33係内定(一心1243953 IX. Description of the invention ... [Technical field to which the invention belongs] 2. The present invention relates to a digital camera, and more particularly to a digital camera with a customizable focusing range, and a method for customizing the focusing range. [Previous technology] Today, the use of digital cameras is becoming more and more common. However, currently commonly used focusing digital cameras are all built-in focus range or at a fixed position = Auto Focus, without providing users with The focusing method provided by the fixed-focus camera is to use digital signal processing as the OSP) to calculate the global contrast value of the captured image, calculate the average value of the global contrast value as the global focus, or take the full pair of the image. Focus to complete autofocus. ',,, and M are ▲ or another is to use a special focus lens to change the focus, as described in US Patent No. 6,686, 577, the content of which is = focus range tilt (incl inatiGn ), It will reduce the intelligibility of the detected focus, so it uses a separor lens to correct the lens and improve the accuracy of focus detection. However, this U.S. Patent No. 686, 577 does not deviate from the center-of-focus technology, so the focus position cannot be changed. In addition, when modern people take pictures, many people who require innovation are placed on one of the daytime faces, while Zhongmai puts w H # T ..., when taking pictures with users, in fact US :: Other backgrounds疋 I hope that the people on the side of the screen can be clear (after focusing operation), and the water is clear. Therefore, there are 4) mentions: a == ⑽ catch a digital camera with a customizable focus range of 1243953 and # ,,,, especially a digital camera that can be customized by the user and requires a lens change. [Summary of the Invention] A kind of customizable focus is available for users. In view of the shortcomings of the prior art, the digital camera of the present invention and its custom focus range 2 intentionally select a focus range. The digital camera includes a processor, an acquisition number τ: ς =; a bit camera: a group, a display for displaying digital images, an input reading processor that operates on the 2 extraction board and receives the number. It is characterized in that: the minus command of the present invention provides the in-focus range, and the digital camera then uses a digital signal; calculates the contrast value of the selected focus range, and finally performs the focusing action on the contrast value of the ten focus range. In addition, the present invention also provides a digital camera method. The method includes ... T ..., y, for the user to arbitrarily select a digital image to display a digital image; any one of the inputs of a complex command is received. Focus range; Calculate the contrast value of the selected focus range; and focus on the contrast value. That is, the contrast value of the focus range is extracted from the global contrast value at ======= 1243953. Comparative value of this focusing range. [Embodiment] In order to make the above and other objects, features, and advantages of the present invention clearer, and the page is easy to magic, the following exemplifies the preferred embodiments and cooperates with the accompanying drawings. For The details are as follows. σ. Referring to FIG. 1 and FIG. 2, a block diagram of a digital camera according to an embodiment of the present invention and a structure of a user terminal of the digital camera are not intended. The present invention provides a number 2 machine 1 that allows a user to customize the focusing range, which includes: a processor U, an image capture for obtaining a digital image, and 12 (such as a CCD), a display capable of displaying a digital image.丨 3. Focusing center 15 for field use, and editing interface that can accept multiple commands for input and control. I [where focusing device 15, display Η, ~ image capture group 丨 2, and editing Interfaces 4 and 4 are all electrically connected to the processing cry. ^ The editing interface 14 of the invention (as shown in FIG. 3β or FIG.%) Can receive the input person to control the operation of the processor 11 for the user to arbitrarily select the focusing range through the interface 14 (as shown in FIG. 3A or FIG.%). No ^ 33). For example, the user can input a command through the input key 14 to control the operation of the processing state (for example, control by a software program), and select the focusing range 33 with a redundant percentage. After selecting the focusing range μ, :: The digital signal processor (coffee) 16 of the digital camera i calculates the pair = contrast value of around 33. At this time, the focusing device is called a lens lens, a stepping motor, etc., and the focusing range is 1243953. 3 丄 = ratio: focus operation (for example, using the processor 11 to calculate the lens distance to control the stepping of the stepping motor, please refer to FIG. 4, which is a schematic flow chart of the method of Xingwei according to the present invention. User Λ ° , ... yoke position_ will display digital image = start use: image capture module 12 (such as CCD) capture real :: :: medium, bit image 3. Focus range 33 is fixed (one heart
▲希Ϊΐ，Ϊ果使：者欲改變對焦的位置，例如使用者可 係：二顯不為13視窗之一隅的目標前景32 (如圖3Α ==示器13視窗的左上方）可以是清晰的，而中 則是無須清晰顯示的背景31，則使用者可藉 ^'、4。輸人指令，控制處理川的運作（例如以程式 改變對焦範圍33。簡言之，在此所定義的「前景」 二目:景」就是拍照影像中經過對焦作業的清晰 而「为景」則是拍照影像中未對焦的其他景物。 口此接下來步‘ S42係接收複數指令，以選擇 :=參考圖3B與圖3C，本發明之編輯介 二▲ Hey, you want to change the focus position. For example, the user can tie: the target foreground 32 (the second display is not one of the 13 windows). , While the middle is a background 31 that does not need to be clearly displayed, the user can borrow ^ ', 4. Input instructions to control the operation of the processing channel (for example, to change the focus range 33 by a program. In short, the "foreground" binocular: scene "defined here is the clearness of the focus operation in the photographed image and the" view " It is other scenes that are not in focus in the photographed image. The next step is S42, which receives a plurality of instructions to select: = refer to FIG. 3B and FIG. 3C.
=選：對焦範圍33’較佳者，使用者可藉由編輯介面 八你m Γ 其中，移動對焦範圍33的指 :田除了可以利用輸入鍵140以上、下、左、右移動， 使用者运可以輸人座標位置时式移動。此外，雖然本發 明之圖式所顯示的對焦範圍33其形狀係 ^ 圍33的形狀還可以是圓形、菱形或橢圓形等等 犯 再來步驟S43，係計算對焦範圍33的對比值。如上所 8 1243953 ΐ圍數位信號處理11 (Dsp)16計算該對焦 摩巳阗^之對比值（contrast value)。 值在：Ϊ i 本發明係針對該對焦範圍33的對比 = = 動作。此時’同樣地對焦裝置15 (包括透 二兄斜隹二ί馬達等等）即可針對對焦範圍33的對比值 制例如以處理器U計算鏡頭的距離以控 mi 數）。請參考圖3D，本發明之數位 其顯^ 13所顯示的目標前景32雖然是位在晝面 L 景32的影像原本雖然並未對焦所以不清晰 口口圖所不），但是經過改變對焦範圍33之後，也就 :將f本是位在中心的對焦範圍33更改到前景32的位 將在晝面—隅的前景32可以變的清晰，而無須 將刖厅、3 2的位置放在畫面的中央。 本發明之另一實施例’請參考圖5，開始照相之後，步 驟S51係與圖4的步驟S41相類❿，就是顯示一數位影像3〇。 接下來步驟S52係計算數位影像3〇的全域對比值。例 如，利用數位相機1的數位信號處理器丨6計算該全域對比 值0 然後步驟S53’接收指令以選擇對焦範圍犯。此一步驟 係類似於圖4的步驟S42，因此不再贅述。 再來是步驟S54’從數位影像33的全域對比值中擷取出 該對焦範圍33的對比值。由於數位相機丨的影像都是數位化 處理（例如利用數位信號處理器轉換信號），所以本發明可 利用數位信號的特性，針對對焦範圍33擷取出其對比值。 最後’步驟S55係針對該對焦範圍33的對比值進行對焦 1243953 的動作係與圖4的步驟S44相類似， 動作。同樣地’這個對焦 因此也不再贅述。 雖然本發明已以較佳實施例 限定本發明，任何熟習此姑蓺去备 '、、、，、亚非用以 和範圍内，當可作些許之更“潤不明之精神 範圍當視後附之申請專利範圍所'界定者=。*明之保護 【圖式簡單說明】 實施例之數位相機之系統方塊= Select: The focus range 33 'is better. The user can use the editing interface to make you m Γ. Among them, the finger that moves the focus range 33: In addition to using the input key 140, you can move up, down, left, and right. You can enter the human coordinate position to move in time. In addition, although the shape of the focus range 33 shown in the drawings of the present invention is that the shape of the range 33 can also be circular, diamond, or elliptical, etc. The process returns to step S43 to calculate the contrast value of the focus range 33. As described above, 8 1243953 digital signal processing 11 (Dsp) 16 calculates the contrast value of the focus motor ^. Values are: Ϊ i The present invention is directed to the contrast of the focusing range 33 = = action. At this time, similarly, the focusing device 15 (including the second and second slanting motors, etc.) can adjust the contrast value of the focusing range 33, for example, use the processor U to calculate the distance of the lens to control the number of mi). Please refer to FIG. 3D. Although the target foreground 32 displayed by the digital display 13 of the present invention is located on the daytime surface L, the image of the scene 32 is originally not in focus, so the image is not clear, but after changing the focus range After 33, that is: changing the focus range 33, which is in the center, to the foreground 32, will be in the daytime—the foreground 32 of 隅 can become clear, without the need to place the 刖 hall and 3 2 on the screen. The center. Referring to FIG. 5 of another embodiment of the present invention, after photographing is started, step S51 is similar to step S41 of FIG. 4, and a digital image 30 is displayed. The next step S52 is to calculate the global contrast value of the digital image 30. For example, the digital signal processor 丨 6 of the digital camera 1 is used to calculate the global contrast value 0, and then step S53 'receives an instruction to select a focus range. This step is similar to step S42 in FIG. 4 and will not be described again. Then, step S54 'extracts the contrast value of the focus range 33 from the global contrast value of the digital image 33. Since the images of the digital camera are processed digitally (for example, the signal is converted by a digital signal processor), the present invention can use the characteristics of the digital signal to extract the contrast value for the focus range 33. Finally, step S55 is to perform focusing on the contrast value of the focusing range 33. The operation of 1243953 is similar to that of step S44 in FIG. 4, and the operation is similar. Again, this focus will not be repeated here. Although the present invention has been limited to the preferred embodiments of the present invention, anyone who is familiar with this book to prepare for the use of ",,,,,, and the scope of Asia, Africa, and the United States, when you can make a little more" unclear spirit of the scope, as attached " Defined by the scope of the patent application =. * Protected protection [Simplified illustration of the drawing] System block of the digital camera of the embodiment
圖1係依據本發明之一 示意圖。 圖2係依據本發明之一 的結構示意圖。 實施例之數位相機之使用者端 顯^示數位影像的示意圖。 實施例之變更對焦範圍 圖3A係顯示拍照時，數位相機 圖3B〜圖3C係依據本發明之一 之編輯介面示意圖。 圖3D係顯示拍照時， 範圍之數位影像的示意圖 數位相機之顯 不器顯示變更對焦 圖4係依據本發明之一 流程示意圖。 實施例之自訂對 焦範圍之方法Fig. 1 is a schematic diagram according to the present invention. Fig. 2 is a schematic structural view according to one of the present invention. The user terminal of the digital camera of the embodiment displays a digital image. Example of Changing Focusing Range FIG. 3A shows a digital camera when taking a picture. FIG. 3B to FIG. 3C are schematic diagrams of an editing interface according to one of the present invention. FIG. 3D is a schematic diagram showing a digital image in a range when a picture is taken. FIG. 4 is a schematic diagram of a display of a digital camera to change focus. FIG. 4 is a schematic diagram of a process according to the present invention. Method for customizing focusing range of embodiment
對焦範圍之方 圖5係依據本發明之另一實施例之 法流程示意圖。 【主要元件符號說明】 1、數位相機 10 1243953 11、 處理器 12、 影像擷取模組 13、 顯示器 14、 編輯介面 15、 對焦裝置 16、 數位信號處理器（DSP) 140、輸入鍵 31、 背景 32、 前景 33、 對焦範圍Method of Focusing Range FIG. 5 is a flowchart of a method according to another embodiment of the present invention. [Description of main component symbols] 1. Digital camera 10 1243953 11, processor 12, image capture module 13, display 14, editing interface 15, focusing device 16, digital signal processor (DSP) 140, input key 31, background 32, foreground 33, focus range
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