【文章內容簡介】 進行卡號識別。 將提取出的字符圖像與模版對比，即可識別出銀行卡的卡號。本系統(tǒng)采取的對比方法是逐像素點比對。通過對字符圖像和各個模版進行逐點對比，計算出比對的相同像素點數目，然后比較各個模版相似度，得到字符圖像的數字。 測試結果如圖 13所示。 圖 13 銀行卡卡號識別圖 樣本的測試結果表明，系統(tǒng)能正確識別絕大多數的樣本，未能達到 100％的正確識別率。經過分析發(fā)現識別錯誤或匹配失敗主要有以下三種原因： (1) 銀行卡圖像樣本背景太過復雜； (2) 有些銀行卡卡號二值化閾值選取不正確，未能消除背景干擾； (3) 模板庫數字模版樣本 較少，覆蓋面不夠廣。 19 19 結論 本文通過對圖像處理中已有算法的分析研究，借鑒了已有的一些程序，實現了銀行卡卡號的識別。這個程序不僅可以識別銀行卡卡號，其相關技術也可應用到車牌號碼、護照號、身份證號等其他圖像識別。在以后的研究工作中，我認為可以從以下幾個方面對該系統(tǒng)進行改進。 首先，可以加入圖像傾斜校正模塊，使得樣本圖像傾斜時可以校正。其次，應該適當擴大數字模板庫，使得程序可以識別更多的銀行卡類別。最后，通過適當方式增加函數處理圖像，使得程序可以識別背景比較復雜的銀行卡。 在設計這個程序過程中，也遇到了一些問 題。在一開始，我使用 opencv 的輪廓查找函數來對銀行卡卡號進行定位。這時遇到了一個問題，在 opencv 里用cvFindContours 查找輪廓時，有時候無法對一個輪廓完整的進行查找，查找輪廓得到的邊界往往不包含整個輪廓。所以我加入了 Y 方向投影來保證查找的輪廓是完整的。在對不同銀行卡進行識別時，由于不同銀行卡的數字模版不同，我需要使用不同模版對得到的字符圖像進行對比。我在如何對相應銀行卡使用相應模版方面遇到了困擾。直到老師提醒了我，我將得到的字符與各種銀行卡模版同時使用，最相似的模版對應的數字就是結果，解決 了這個問題。 致謝語 本 文是在 彭洪 老師的悉心指導下完成的。 彭洪 老師為論文研究思路的設 20 20 計和文獻資料的選擇提供了有益的指導，使得論文在成文階段少走了很多彎路。同時， 彭洪 老師嚴謹細致的治學態(tài)度也令我受益匪淺。在論文完成之際，謹向 彭洪 老師致以衷心的感謝 。 參考文獻 : [1] LU Xiaobo,LING Xiaojing,LIU plate character recognition based on the bined features (J).Chinese Journal of Scientific Instrument, 2021, 27 (7): 698701. [2] TRIE O D, JAIN A K, TORFINN extraction methods for character Survey (J).Pattern Recognitiona Recognition, 1996, 29 (4): 641662. [3] A JAIN, Y matching using deformable Templates Transactions on Pattern Analysis and Machine Intelligence, 1996, 18 (3): 267277 [4] application of neural work to image , Control and Info, Eng, 1991, 35 (1): 1118 [5] Fumiaki Takeda, Sigeru Speed Paper CurrencyRecognition by Neural Networks (J).IEEE Trans Neural Network, 1995, 6 (1) [6] Ostu . threshold selection method from Gray level Histogram [J] in IEEE Transactions on systems, man and Cyberics, SMC91979, 9 (1): 6266. [7] BERNSEN thresholding of Graylevel images of [C] / /Proceedings of the 8th International Conference on pattern :IEEE Computer Society Press,1986:12511255. 21 21 為你提供優(yōu)秀的畢業(yè)論文參考資料，請您刪除以下內容， O(∩ _∩ )O 謝謝?。?！ A large group of tea merchants on camels and horses from Northwest China39。s Shaanxi province pass through a stop on the ancient Silk Road, Gansu39。s Zhangye city during their journey to Kazakhstan, May 5, 2021. The caravan, consisting of more than 100 camels, three horsedrawn carriages and four support vehicles, started the trip from Jingyang county in Shaanxi on Sept 19, 2021. It will pass through Gansu province and Xinjiang Uygur autonomous region, and finally arrive in Almaty, formerly known as AlmaAta, the largest city in Kazakhstan, and Dungan in Zhambyl province. The trip will cover about 15,000 kilometers and take the caravan more than one year to plete. The caravan is expected to return to Jingyang in March 2021. Then they will e back, carrying specialty products from Kazakhstan A small art troupe founded six decades ago has grown into a household name in the Inner Mongolia autonomous region. In the 1950s, Ulan Muqir Art Troupe was created by nine young musicians, who toured remote villages on horses and performed traditional Mongolian music and dances for nomadic families. The 54yearold was born in Tongliao, in eastern Inner Mongolia and joined the troupe in says there are 74 branch troupes across Inner Mongolia and actors give around 100 shows every year to local nomadic people. I can still recall the days when I toured with the troupe in the early 39。80s. We sat on the back of pickup trucks for hours. The sky was blue, and we couldn39。t help but sing the folk songs, Nasun says. The vastness of Inner Mongolia and the lack of entertainment options for people living there, made their lives lonely. The nomadic people were very excited about our visits, Nasun recalls. We didn39。t have a formal stage. The audience just sat on the grass. Usually, the performances became a big party with local people joining in. For him, the rewarding part about touring isn39。t just about sharing art with nomadic families but also about gaining inspiration for the music and dance. Ulan Muqir literally translates as red burgeon, and today39。s performers of the troupe still tour the region39。s villages and entertain nomadic families, but their fame has spread around the world. On May 16 and 17, nearly 100 singers and dancers from the troupe performed at Beijing39。s Poly Theater. Their show, titled Ulan Muqir on the Grassland, depicted the history and development of the art troupe. Being from the region allowed me to embrace the culture of Inner Mongolia and being a member of the troupe showed me where I belonged, Nasun, the art troupe39。s president, who is also a renowned tenor, tells China Daily. During a tour in 1985, he went to a village and met an elderly local man, who told him a story about his friendship with a solider from Shenyang, capital of Nor