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研究生:林美伶
研究生(外文):Mei-Ling Lin
論文名稱:以深度卷積神經網路做人臉辨識
論文名稱(外文):Face Recognition using A Deep Convolutional Neural Network
指導教授:曾定章曾定章引用關係
學位類別:碩士
校院名稱:國立中央大學
系所名稱:資訊工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2016
畢業學年度:104
語文別:中文
論文頁數:77
中文關鍵詞:深度卷積神經網路人臉辨識人臉偵測多尺度區域二元模式適應光線變化的特徵
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近年來人臉偵測 (face detection) 與人臉辨識 (face recognition) 技術被廣泛地應用在各種實務或商業娛樂系統上,像是門禁系統、監控系統、身分認證的登入系統、社群網站等。然而,人臉偵測率與人臉辨識率常常受到許多因素影響,包含光照環境的不同、表情的不同、臉部旋轉、及有遮蔽物的情形等。
本論文透過找出人臉的多尺度區域二元模式特徵 (Multi-scale Block Local Binary Pattern, MB-LBP) 來做人臉偵測,克服光線變化、模糊與雜訊,加入多角度人臉影像來訓練分類器,使得可以克服某些程度之內的臉部旋轉。並結合深度卷積神經網路 (deep convolutional neural network) 技術,用我們自己蒐集的多種光源、角度、清晰度變化的人臉資料庫,透過多層網路神經元架構來訓練學習人臉辨識,且與傳統的辨識方法做比較。
在實驗分析中,我們以自己拍攝的影片做測試 (包含不同光線變化,不同角度的人臉影像)。偵測方面,依照不同參數的調整,偵測率可以達到 91% ~ 97%, 誤判率 4 × 10^(-7), 並比較不同參數搭配的結果。辨識方面,與傳統方法相比,利用深度卷積神經網路方法訓練 12 個類別 (分別為 1 ~ 10 類、其他人和非人臉)的人臉辨識模型,測試樣本 881 個,辨識正確率可達到 94.3%。
In recent years, face recognition and face detection techniques are widely used in various applications, such as access control systems, surveillance system, login system, and community websites etc. However, there are some factors that affect the recognition performance like different lighting conditions, facial expression, face rotation, and occlusion by other objects.
In this paper, we use Multi-scale Block Local Binary Pattern (MB-LBP) to detect face. MB-LBP can overcome different lighting conditions, blurred and noise images. We add multi-angle face images to train the detection classifier, so that classifier can overcome some degree of face rotations. We collect face databases with various lighting conditions, angles, multi-resolution and use multi-layer neural network to train the face recognition system. We compare traditional recognition method with deep convolutional neural network (CNN).
In the experimental analysis, we do test with the videos which we shot, including different lighting conditions and different face angles. In the detection section, according to different parameters, the detection rate can reach up to 91% ~ 97% and about 4 × 10^(-7) false positive rate. We compare the results with different parameters. In the recognition section, comparing with traditional methods, we use 12 classes, including 10 persons, other men, and not men, to train deep convolutional neural network model for face recognition. In the case of 881 test samples, the recognition rate reach to 94.3%.
摘要 i
Abstract ii
誌謝 iii
目錄 iv
圖目錄 vi
表目錄 x
第一章 緒論 1
1.1 研究動機 1
1.2 系統架構 2
1.3 論文架構 6
第二章 相關研究 7
2.1 人臉偵測 7
2.2 人臉辨識 11
第三章 人臉偵測 17
3.1 擷取人臉特徵 17
3.2 人臉偵測 25
3.3 人臉偵測的訓練 27
第四章 人臉辨識 30
4.1 區域二元模式人臉辨識 30
4.2 深度卷積神經網路 32
4.3 深度卷積神經網路架構 38
第五章 實驗結果 43
5.1 實驗設備介紹 43
5.2 人臉偵測實驗與結果展示 43
5.3 人臉辨識實驗與結果展示 47
第六章 結論及未來展望 55
參考文獻 56
附錄 61
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