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書籍 查詢系統

書籍 查詢系統. 4970E065 陳俊彥 4970E083 劉介玄. 規格. Android 作業系統 30 萬畫素以上的智慧型手機 ( 附照相功能 ) QRcode ( 包含博客來網路書店網站網址 , 書籍 ISBN 碼 ) ZXing ( Zebra Crossing ). QR code 介紹.

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書籍 查詢系統

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  1. 書籍查詢系統 4970E065 陳俊彥 4970E083 劉介玄

  2. 規格 Android作業系統 30萬畫素以上的智慧型手機(附照相功能) QRcode(包含博客來網路書店網站網址,書籍ISBN碼) ZXing(Zebra Crossing)

  3. QR code介紹 QRcode是二維條碼的一種,1994年由日本Denso-Wave公司發明。QR來自英文「Quick Response」的縮寫,即快速反應的意思,源自發明者希望QRcode可讓其內容快速被解碼。QRcode最常見於日本,並為目前日本最流行的二維空間條碼。QRcode比普通條碼可儲存更多資料,亦無需像普通條碼般在掃描時需直線對準掃描器。QRcode呈正方形,只有黑白兩色。在3個角落,印有較小,像「回」字的的正方圖案。這3個是幫助解碼軟體定位的圖案,使用者不需要對準,無論以任何角度掃描,資料仍可正確被讀取。日本QRcode的標準JIS X 0510在1999年1月發佈,而其對應的ISO國際標準ISO/IEC18004,則在2000年6月獲得批准。根據Denso Wave公司的網站資料,QRcode是屬於開放式的標準,QRcode的規格公開,雖由Denso Wave公司持有的專利權益,但不會被執行。除了標準的QRcode之外,也存在一種稱為「微型QRcode」的格式,是QRcode標準的縮小版本,主要是為了無法處理較大型掃描的應用而設計。微型QRcode同樣有多種標準,最高可儲存35個字元。

  4. QR code資料容量&錯誤修正容量 數字最多7,089字元 字母最多4,296字元 二進位數(8 bit)最多2,953位元組 日文(漢字/片假名)最多1,817字元(採用Shift JIS) 中文漢字(採用UTF-8) 最多984字元 (採用UTF-8) 中文漢字(採用BIG5) 最多1,800(採用Big5) Shift_JIS是一個日本電腦系統常用的編碼表。它能容納全形及半形拉丁字母、平假名、片假名、符號及日語漢字。 UTF-8(8-bit Unicode Transformation Format)是一種針對Unicode的可變長度字元編碼(定長碼),也是一種字首碼。 Big5又稱為大五碼或五大碼,是使用繁體中文(正體中文)社群中最常用的電腦漢字字符集標準,共收錄13,060個漢字。 L水平 7%的字碼可被修正 M水平 15%的字碼可被修正 Q水平 25%的字碼可被修正 H水平 30%的字碼可被修正

  5. ZXing ("Zebra Crossing") ZXing(pronounced "zebra crossing") is an open-source, multi-format 1D/2D barcode image processing library implemented in Java, with ports to other languages. Our focus is on using the built-in camera on mobile phones to scan and decode barcodes on the device, without communicating with a server. However the project can be used to encode and decode barcodes on desktops and servers as well. We currently support these formats: UPC-A and UPC-E EAN-8 and EAN-13 Code 39 Code 93 Code 128 QR Code ITF Codabar RSS-14 (all variants) Data Matrix PDF 417 ('alpha' quality) Aztec ('alpha' quality) This library is divided into several main components which are actively supported: core: The core image decoding library, and test code javase: J2SE-specific client code android: Android client, called Barcode Scanner androidtest: Android test app android-integration: Supports integration with our Barcode Scanner app via Intent zxingorg: The source behind zxing.org/w There are also additional modules which are contributed and/or intermittently maintained: zxing.appspot.com: The source behind our web-based barcode generator csharp: Partial C# port cpp: Partial C++ port iphone: iPhone client + port to Objective C / C++ (QR code only) jruby: Ruby wrapper actionscript: partial port to Actionscript There are, finally, some modules no longer maintained but that are available from earlier releases: javame: JavaME client rim: RIM/Blackberry-specific client build bug: Client for BugLabs's BUG

  6. 工作原理與軟硬體方塊圖 使用者透過使用現代30畫素以上的智慧型手機,搭配手機內的QRcode解碼軟體,使用智慧型手機的拍照功能對著QRcode一照,解碼軟體會自動去解讀此訊息並且去搜尋,然後把搜尋之後的結果內容顯示於手機螢幕上面。

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