1234991 五、發明說明Q) 【發明所屬之技術領域】 本發明是關於—種感測曝 方法，特別是一種庫用&光與，強度以調變影像訊號之 源強度以匕：：訊=時掃描或是預覽之感測曝光 【先前技術】 掃七田裔是一種用以捕捉影像 掃描器為例，豆其太献磁4 ^的衣置以傳統的平台式 件（可以3Γ 土曰本配備L括有：一用以承載待掃描之物 機模組疋田件或是圖片）的玻璃平台（Wind〇W)、以及/光 是」与傻成以將影像轉換成電訊號；而光機模組的核心則 確取ί成i測兀件（Image sens〇r)、以及將物件之影像正 成影像感測元件的鏡頭（Lens)，影像感測元件 ° ，、有許多的影像感測像素，隨著每個影像残測像 素受光強度之不同而積聚電荷形成壓差，而後經由H像/ 數位轉換器（A/D Converter)轉換成為數位電訊號，以將 原始的影像轉換為電子檔，如此一來，使用者便可以在電 腦軟體中進行影像處理、編輯、儲存和輸出的動作。 在一般掃描器或是多功能事務機中，其光機模組多是 以冷陰極管（Cold Cathode Fluorescent Lamp; CCFL)作 為主要的文件曝光源。 雖然冷陰極管具有亮度高、耗電量低、使用壽命較長 …等優點，但其主要的缺點在於：每當使用者重新啟動掃 描器或是多功能事務機時，以「第1圖」所示之玻璃平台 1 0及其相對應之座標軸為例以作說明，當其經過一段暖機1234991 V. Description of the invention Q) [Technical field to which the invention belongs] The present invention relates to a method of sensing exposure, in particular a library & light and intensity to modulate the intensity of the image signal. Scanning or previewing the sensing exposure [Prior technology] Scanning Qitian is a kind of scanner used to capture images. For example, Dou Chi's magnetic 4 ^ clothes are equipped with traditional platform parts (can be equipped with 3Γ soil) L includes: a glass platform (WindW) to carry the object machine module Putian pieces or pictures to be scanned, and / or "light" to convert the image into an electrical signal; and the optical machine mode The core of the group is to determine the image sensing element (Image sensor), and the lens (Lens) that transforms the image of the object into an image sensing element, the image sensing element °, and there are many image sensing pixels. With the difference in light intensity of each image residual measurement pixel, a charge is accumulated to form a pressure difference, and then converted into a digital signal by an H / D converter to convert the original image into an electronic file. In this way, users can Software for the image processing, editing, storage and output operation. In general scanners or multi-function MFPs, their opto-mechanical modules mostly use Cold Cathode Fluorescent Lamp (CCFL) as the main document exposure source. Although the cold cathode tube has the advantages of high brightness, low power consumption, long service life, etc., its main disadvantage is that whenever the user restarts the scanner or multifunction printer, the "picture 1" The illustrated glass platform 10 and its corresponding coordinate axis are taken as an example for illustration.
1234991 五、發明說明（2) (Warm up)時間讓燈管之輝度慢慢提升至如「第2圖」所示 之穩定狀態（即相對應於影像感測元件在「第i圖」之Υη位 置時’所擷取到的各像素（X軸）與其對應之光電輸出訊號 的關係圖），將不位置之像素所擷取到的訊號差異視為 冷陰極管固定不變的特徵，並由掃描器或是多功能事務機 之圯丨思體内所上載的黑/白光平衡表（sha(jing table)進行 每一點的亮度補償，才能開始進行圖片掃描的工作。 在常溫的狀態下，這段暖機時間大約是丨_3分鐘左 右，然而，對於一些寒帶國家而言，使用者需等待更長的 一段時間後才能開始使用掃描器，造成使用者相當大的不 便，而有些使用者甚至誤以為等待時間過長是系統當機的 原故，而要求退貨處理。 ^。因此，在這個產品日益競爭的環境下，如何降低 :或疋多功能事務機在冷機掃描前之等待時間，使盆呈 隨開即用的功能，將是一個很重要的議題。 八/、 【發明内容】 鑒於以上習知技術的問題，本發明之目的在 p气I ^置，例如：掃描态或是多功能事務機中，當使用者 :古彳，而其燈源之輝度尚未穩定時，可藉由補 下使用者4待燈源暖機所需花費的時間 ^ 多功能事務媸目娘古_ η如田沾丄 1更传知描器或是 的方便性^備^開ρ用的1 力能’增加使用者操作上1234991 V. Description of the invention (2) (Warm up) Time allows the brightness of the lamp to slowly increase to a stable state as shown in "Figure 2" (that is, corresponding to the image sensor element in "Figure i") The relationship between each pixel (X-axis) and its corresponding photoelectric output signal when it is in position), the difference between the signal from the pixel that is not in position is regarded as a fixed feature of the cold cathode tube, and Scanners or multifunction MFPs: The black / white light balance table (sha (jing table) uploaded on the body) compensates for each point of brightness before starting the image scanning. At normal temperature, this The warm-up time is about __3 minutes. However, for some cold regions, users need to wait a longer period of time before they can start using the scanner, causing considerable inconvenience to users, and some users even I mistakenly think that the long waiting time is the reason why the system is down, and the return processing is required. ^. Therefore, in the increasingly competitive environment of this product, how to reduce: or 疋 wait for the MFP before the cold scan In the meantime, it will be a very important issue to make the basin function out of the box. [Abstract] In view of the problems of the conventional technology, the purpose of the present invention is to set the gas, such as the scanning state. Or in a multi-function business machine, when the user: Gu Yan, and the brightness of its light source is not stable, you can supplement the time spent by the user 4 to warm up the light source ^ Multi-function business Ancient _ η Rutian Zhan 丄 1 is more known for the convenience of a tracing device or ^ ^ ^ 1 force can be used to increase the user's operation
第7頁 1234991 五、發明說明（3) 此方法首先是於使用者開機後，而燈源之輝度尚未到 達疋狀況之前’先進行一份文件之掃描工作，以得到此 文件中各個不同位置之像素所相對應之一光電輸出訊號。 接著’將所得之光電輸出訊號傳送至光機模組之記憶 單兀’以調整此記憶單元内之一黑/白光平衡表及一特殊 應用積體電路之參數設定，以進行各像素之亮度補償，模 擬出燈源穩定時之亮度狀況，並產生一更新後之黑/白光 平衡表。 最後 之光電輸 料，使得 穩而產生 強度以調 為使 了解，茲 【實施方 本發 應用於一 機，此光 感測元件 而此 要進行文 白光平衡 位置之輝 ’以更新後 出訊號，以 掃描後所產 影像太暗的 變影像訊號 對本發明的 配合圖示詳 式】 明之感測曝 光學掃描裝 學掃描裝置 及一記憶單 記憶單元内 件之掃描或 表進行每一 度不同， 而 之黑/白光平衡表補償各像素相對應 即時產生此文件掃描後之一影像資 生的景彡像資料不會因為燈源之輝度不 情形’如此，便完成整個感測曝光源 方法之流程。 目的、構造特徵及其功能有進一步的 細說明如下： 光源強度以調變影像訊號之方法，係 置，例如：掃描器或是多功能事務 之光機模組内包含有一燈源、一影像 元。 十載有一黑’白光平衡表，當使用者 疋預覽列印的作業時，需利用此黑/ 點的壳度補償，以避免因燈管本身各 造成掃描出來的影像資料過暗或是過 五、發明說明（4) 亮的情形。 _當，用者開機後，而燈源之輝度尚未到達籍定壯^夕 珂，可藉由本發明所揭露之方法補償校正各^ 声 以進行即時之掃描或是預覽列印之作業，=f，冗度， 節省下使用者等待燈管暖機的時間 ：：：：： 是預覽列印的工作。 订即％的知描或 以二匕圖*」所示，係為本發明感測曝光源強度 以3周、文衫像汛唬之方法之方法流程圖，說明如 - 狀、兄H用者開機後’而燈源之輝度尚未到達釋定 ϊ Γ 士^文件，以得到相對應於此文件中^ # 素之一光電輸出訊號（步驟20)。 文件中各像 先由光學掃描裝置中之影像感測元件掃 以「第1圖」所示之玻璃平台10的座標ϋ ， 在Y軸的每一個位置σ Y j ^位置，並且 的掃描。 ！ h Yn)白進订X方向（Χι、ν.·Χη) 當每完成Υ軸上 得到如「第4圖」所示之各之χ…方向的掃描時，即可 圖。而將Υ軸上每—個位 汾/、其光電輸出訊號之關係 係圖匯整後，即可得到如：與：光電輸出訊號之關 一個位置（γ!、γ2 ..·γ )之# I纟圖」所不之文件上Υ軸的每 之後，傳送各:雷於其光電輸出訊號之關係圖。 整此記憶單元内之—黑/雨白Λ遽至一記憶單元内，以調 路之參數設定，以進彳^各春平衡表及一特殊應用積體電 進仃各像素之亮度補償，並產生一更新 1234991 五、發明說明（5) 後之黑/白光平衡表（步驟2】）。 將「第5圖」所示之待掃 (I H)之像素與t光電Η件^軸的母一個位置 元内之-黑/白光平衡表，：:丨：訊號之關係傳送到記憶單 或是乘法運算法（例如.將γ軸 内插法（interpGiation) 電輸出訊號同乘上一』二上個位置輪素與其光 大或是縮小)的方式，進行各V、去光電輸出訊號同時進行放 -個經過補償運算之亮度補償，並且產生 最後，以更；；j新白後λ黑/白光平衡表。 之光電輸出訊號，4;產生:Λ表 (步驟22)。 Μ生此文件掃描後之一影像資料 以更新後之黑/白光平衡表補償各 以將其亮度調整為-個近似於燈管二狀兄 t掃描後所產生之影像資料過暗，且同時可； 時的預覽列印之顯示。 才j敌仏使用者即 圍所作的均等變化與範 第10頁 1234991 圖式簡單說明 2 1圖係為玻璃平台及其相對應之座標軸之示意圖； 第2圖係為光機模組之影像感測元件在Υ η位置時，所擷取 f的各像素（χ軸）與其對應之光電輸出訊號的關係圖； 第3圖係為本發明感測曝光源強度以調變影像訊號之方法 之方法流程圖； 第4圖係為γ軸上每一個位置之像素與其光電輸出訊號之關 係圖；及 第5圖係為將γ軸上每一個位置之像素與其光電輸出訊號之 關係圖匯整後，所得之文件上Υ軸的每一個位置（Υι、γ2 ••·ΥΠ )之像素與其光電輸出訊號之關係圖。 2 【圖式符號說明】 10 玻璃平台 於使用者開機後’而燈源之輝度尚未到達穩 定狀況之前’先掃描一文件，以得到相對應 於此文件中各像素之一光電輸出訊號 傳送各光電輸出訊號至一記憶單元内，以調 整此記憶單元内之一黑/白光平衡表及一特 殊應用積體電路之荼數設定，以進行各像素 之壳度補償，並產生一更新後之黑/白光平衡 表 以更新後之黑/白光平衡表補償各像素相對應 之光電輸出訊號’以即時產生此文件掃描後 之一影像資料 $Page 7 12344991 V. Description of the invention (3) This method is to first perform a scan of a document after the user turns on the lamp before the brightness of the light source has reached the condition, to obtain the different positions in the document. One of the photoelectric output signals corresponding to the pixel. Then 'transmit the obtained photoelectric output signal to the memory unit of the optical-mechanical module' to adjust the parameter settings of a black / white light balance meter and a special application integrated circuit in this memory unit to perform brightness compensation of each pixel , Simulate the brightness condition when the light source is stable, and generate an updated black / white light balance table. The final photoelectric feeding makes the intensity stable and adjusted for understanding. [The implementer applies this device to a machine, and this light sensing element is required to perform the brightness of the white light balance position 'to update the signal to scan The image signal produced after the image is too dark changes the image of the present invention in detail. The scanning or scanning of the exposure sensor and the scanning device and a memory single memory unit are performed differently for each degree, and the black / The white light balance table compensates for each pixel corresponding to the scene data generated by one of the image scans generated immediately after the scanning of this document will not be due to the fact that the brightness of the light source is not the same. This completes the entire process of sensing the exposure source method. The purpose, structural characteristics and functions are further explained in detail as follows: The intensity of the light source is adjusted by adjusting the image signal. For example, the scanner or the multi-function light machine module contains a light source and an image element. . There is a black and white light balance table for ten years. When the user is previewing the print job, the shell compensation of this black / dot needs to be used to avoid the image data scanned by the lamp itself being too dark or over five. 2. Description of the invention (4) Bright situation. _When the user turns on, but the brightness of the light source has not yet reached the high level, you can use the method disclosed in the present invention to compensate and correct each sound for real-time scanning or preview printing, = f , Redundancy, saving the user time waiting for the lamp to warm up :::: is a preview print job. It is shown in %% or by two-dagger map * ", which is a flow chart of the method of sensing the intensity of the exposure source in the present invention for 3 weeks, and the shirt is like a flood. After power-on, and the brightness of the light source has not yet reached the Shi Dingshi file, to obtain a photoelectric output signal corresponding to one of the ^ # elements in this file (step 20). Each image in the document is scanned by the image sensing element in the optical scanning device with the coordinates ϋ of the glass platform 10 shown in "Fig. 1" at each position σ Y j ^ on the Y axis. !! h Yn) White advance order X direction (χι, ν. · χη) When each scan on the Z axis is completed and the scans in the χ ... directions as shown in "Fig. 4" are obtained, the drawing is ready. And after summing up the relationship between each and every bit on the Z axis, and its photoelectric output signal, you can get, for example, a position (γ !, γ2 .. · γ) that is related to the photoelectric output signal. After each file on the upper axis of the file not shown in “I 纟 图”, the following is transmitted: the relationship diagram of Lei Yu's photoelectric output signal. Integrate this memory unit—black / rain white Λ 遽 into a memory unit, set the parameters of the tuning, use the spring balance table and a special application integrated circuit to enter the brightness compensation of each pixel, and Generate an update of the black / white light balance table after updating 1234991 V. Invention Description (5) (step 2). The black-and-white light balance table within one position element of the pixel to be scanned (IH) shown in the "figure 5" and the mother of the ^ axis of the t-photoelectric file: :: 丨: The relationship of the signal is transmitted to the memory list or Multiplication algorithm (for example, multiplying the γ-axis interpolation (interpGiation) electrical output signal by one, two, and the last position of the wheel and its lightness or reduction), each V, the photoelectric output signal is simultaneously put- Compensation for brightness compensation, and finally, to produce more; λ black / white light balance table after new white. The photoelectric output signal, 4; generates: Λ table (step 22). One of the image data scanned by this file is compensated by the updated black / white light balance table to adjust its brightness to a value approximately similar to the image data generated by the lamp tube after scanning. ; The preview print is displayed. The equivalent changes made by the user and the user are the same as on page 10, 1234991. The diagram is briefly explained. 2 1 is a schematic diagram of the glass platform and its corresponding coordinate axis; Figure 2 is the image of the optical machine module. When the measuring element is at the position of 位置 η, the relationship between each pixel (χ axis) of f and its corresponding photoelectric output signal is captured; Figure 3 is the method of sensing the intensity of the exposure source to adjust the image signal according to the present invention Flow chart; Figure 4 is the relationship between the pixel at each position on the γ axis and its photoelectric output signal; and Figure 5 is the relationship between the pixel at each position on the γ axis and its photoelectric output signal. The relationship between the pixel at each position of the axis (Υι, γ2 •• · ΥΠ) on the obtained file and its photoelectric output signal. 2 [Illustration of graphical symbols] 10 After the glass platform is turned on by the user and before the brightness of the light source has reached a stable state, a file is scanned to obtain a photoelectric output signal corresponding to one of the pixels in the file and transmit the photoelectric Output a signal to a memory unit to adjust a black / white light balance meter and a special application integrated circuit setting in the memory unit to compensate for the shell of each pixel and generate an updated black / The white light balance table compensates the photoelectric output signal corresponding to each pixel with the updated black / white light balance table to generate an image data of this document after scanning $