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  • 學位論文

基於影像紋理辨識之整鈔系統的分析研究與實現

The Analysis and Implementation of Currency Identification System Based on Texture Image Recognition

指導教授 : 駱榮欽

摘要


現行的紙製貨幣「鈔票」,常有以下問題,首先,在不斷的重覆使用下,造成磨損、皺摺及破損等,破壞了鈔票的完整性,嚴重影響這張鈔票的續用性;二者,常被不良集團偽造,為了檢驗這些鈔票,已有不少品鈔與驗鈔的方法與論文被提出。本研究使用ARM11嵌入式系統配合整鈔機機構發展出更快速可靠的整鈔辨識系統,此系統包含鈔票的面向、面額與OVD脫落以及特徵真偽判斷。以CIS配合機構的動作在鈔票經過時掃描鈔票的影像,從影像中擷取鈔票的部份作辨識,並將辨識之結果在LCD顯示螢幕上以QT所撰寫之互動式人機介面告知使用者,並搭配SPI傳輸各類參數來與外部機台溝通。此系統加入了影像辨識功能以彌補市面上傳統點驗鈔機僅以感測器作為整鈔時的依據,減少不適用鈔流入市面的機會,並方便鈔票做整理排序。此系統在每分鐘360張的速率下面額辨識率為97%正反向辨識率為99%,OVD脫落辨識為91%。

關鍵字

鈔票 嵌入式系統 影像辨識

並列摘要


Banknote is a paper currency used at present and it has some problems in use. First, when banknote has been used repeatedly, abrasion, wrinkle and damage will undermine its integrity, which may affect the use continuation; second, counterfeits appear in our life frequently. This study developed a rapid and reliable banknote sorting system base on embedded system ARM11. This system includes banknote denomination recognition, face direction identification and OVD fall-off recognition. In this study we added image recognition features to make up traditional detectors based on sensor for banknote sorting. This banknote identification system has achieved a detection success rate of 97% in denomination and 99% in upside/down identification, and OVD fall-off recognition has detection rate of 91%.

並列關鍵字

Banknote embedded system image recognition

參考文獻


[6]楊士毅,光學字元辨識在鈔票管理的應用,碩士論文,國立虎尾科技大學光電與材料科技研究所,台灣,中華民國九十四年七月。
[5]江雅雯,值基於色彩及紋理分析之鈔票偵測系統,碩士論文,私立中原大學資訊工程學系,台灣,中華民國九十五年七月。
[4]中華民國消費者文教基金會,「鈔票」調查測試結果表,台北,2007。
[10]Yo-Chen Wang, Ya-Wen Chiang, Yan-Yau Jiang and Yuan-Hsiang Chang “Development of Bill-Counterfeit Prevention Technology for Multi-Function Peripherals” IAENG International Workshop on Imaging Engineering 2006, Hong Kong, 2006.
[11]Felipe Grijalva, J.C. Rodríguez, Julio Larco and Luis Orozco, “Smartphone recognition of the U.S. banknotes’ denomination, for visually impaired people” ANDESCON, 2010 IEEE, pp1-6, Nov, 2010.

被引用紀錄


Chen, C. H. (2013). 基於DSP架構的高速辨鈔系統設計與實現 [master's thesis, National Taipei University of Technology]. Airiti Library. https://doi.org/10.6841/NTUT.2013.00329

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