請用此 Handle URI 來引用此文件：
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/25776完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 王勝德(Sheng-De Wang) | |
| dc.contributor.author | Yi-Chih Liu | en |
| dc.contributor.author | 劉奕志 | zh_TW |
| dc.date.accessioned | 2021-06-08T06:29:29Z | - |
| dc.date.copyright | 2006-07-28 | |
| dc.date.issued | 2006 | |
| dc.date.submitted | 2006-07-26 | |
| dc.identifier.citation | [1] P. Ekman and W. V. Friesen, Manual for the facial Action Coding System. Palo Alto: Consulting
Psychologists, 1978 [2] Parke, F. I. ”Parameterized models for facial animation”, IEEE Computer Graphics and Applications 2(11), pp. 61-68,1982. [3] Waters K.”A Physical model of facial Tissue and muscle Articulation Derived from Computer Tomography Data” SPIE Visualization in Biomedical Computing, Vol.1808,pp.574-583. 1992. [4] H. Ohta, H. Saji, and H. Nakatani, “Recognition of facial expressions using muscle-based feature models, ”(in Japanese), Proc. of 14th ICPR, pp.1379-1381, 1998 [5] Terzopoulos, D and K. Waters , Techniques for realistic facial modeling and animation. Proc. Computer Animation `91, pp 59-74, 1991. [6] Hitoshi Saji, Atsushi Kimura, Hiroshi Ohta and Hiromasa Nakatani, “Tracking the Motions of Facial Components Using Anatomical Knowledge” ,Vol. J80-D-II, No. 8, pp. 2119-2128, 1997. [7] J.P. Lewis,M. Cordner, N. Fong, Pose Space Deformation: A Unified Approach to shape Interpolation and Skeleton Drive Deformation, SIGGRAPH 00 Proceedings, pp165-172, 2000. [8] Waters K.”A Muscle Model for Animating Three-dimensional Facial Expression”, Proceedings of SIGGRAPH `87,pp. 17-24,July 1987. [9] Yi-Chih Liu, Hajime Sato and Jun Ohya, ”Comparative Studies of 3D Face Modeling”, (in Japanese), IEICE, pp. 160, ,September,2001. [10] D. Terzopoulos and K. Waters. “Analysis and synthesis of facial image sequences using physical and anatomical models”. In IEEE Transactions on Pattern Analysis and Machine Intelligence, pp 569-579. JUNE 1993. [11] L .Williams. “Performance-driven facial animation”. In SIGGRAPH 90 Conference Proceedings, volume 24, pp 235-242, August 1990. [12] B. Guenter, C. Grimm, D. Wood, H. Malvar, and F. Pighin. “Making faces”. In SIGGRAPH 98 Conference Proceedings, pp 55-66. ACM SIGGRAPH, July 1998. [13] Perlin, K. “An image synthesizer”. ACM Computer Graphics 19(3),pp287-296, 1985. [14] Ekman, P. and W. Friesen. “Unmasking the Face: A guide to recognizing emotions from facial clues”. Prentice-Hall, Englewood Cliffs, N.J. ,1975. [15] Platt, S. M., “A structural model of the human face”. Ph.D. Dissertation, University of Pennsylvania, 1985. [16] Frederic I. Parke, Keith Waters , “Computer Facial Animation”, A K Peters Ltd,1996 [17] Hajime Sera, Shigeo Morishima, Demetri Terzopous, “Physics-based Muscle Model for Mouth Shape Control” , Proceedings of Robot and Human Communication 96 (ROMAN`96) ,pp. 207-212, 1996. [18] http://trant.sgi.com/opengl [19]T.Beier and S.Neely, “Feature-based Image metamorphosis”, SIGGRAPH’92 Conference Proceedings, pp.35-42, 1992. [20] S.M. Seitz and C. R. Dyer, ”View Morphing”, SIGGRAOH ’96 Conference Proceedings, pp.21-30, 1996. [21] D.T. Chen, A. State, D. Banks, “Interactive Shape Metamorphosis”, 1995 Symposium on Interactive 3D Graphics, pp.43-44, 1995. [22] Y. Aoki, S. Hashimoto, “Physical Facial Model Based on 3D-CT Data for Facial Image Analysis and Synthesis ”, International Conference on Automatic Face and Gesture Recognition, pp448-pp453, 1998. [23] T. Ishikawa, H. Sera, S. Morishima ,and D. Terzopoulos , “Facial image reconstruction by Estimated Muscle Parameter”, International Conference on Automatic Face and Gesture Recognition ,pp 342-pp347, 1998. [24] K. Aizawa, H. Harashima and T. Sato, “ Model-based Analysis Synthesis Image Coding (MBASIC) System For a Person’s Face”, Signal Processing: Image Communication 1 ,pp 139-152, 1989. [25] Yang MH, Kriegman D, Ahuja N. Detecting faces in images: A survey. IEEE Trans. on Pattern Analysis and Machine Intelligence, vo1. 24, no. 1, pp.34-58, January, 2002.. [26] G. Yang and T. S. Huang, “Human Face Detection in Complex Background,” Pattern Recognition, vol. 27, no. 1, pp. 53-63, 1994. [27] K.C. Yow and R. Cipolla, “Feature-Based Human Face Detection,” Image and Vision Computing, vol. 15, no. 9, pp. 713-735, 1997. [28] D. Chai and A. Bouzerdoum ,”A Bayesian Approach to Skin Color Classification in YCbCr Color Space” IEEE Region Ten Conference (TENCON’2000) ,Kuala Lumpur, Malaysia, vol.II, pp.421-424, Sep.2000. [29] I. Craw, D. Tock, and A. Bennett, “Finding Face Features,” Proc. Second European Conf. Computer Vision, pp. 92-96, 1992. [30] H. Rowley, S. Baluja, and T. Kanade, “Neural Network-Based Face Detection,” IEEE Trans. Pattern Analysis and Machine Intelligence, vol. 20, no. 1, pp. 23-38, Jan. 1998. [31] J. Yang and A. Waibel, “A Real-Time Face Tracker,” Proc. Third Workshop Applications of Computer Vision, pp. 142-147, 1996. [32] A. Rajagopalan, K. Kumar, J. Karlekar, R. Manivasakan, M. Patil, U. Desai, P. Poonacha, and S. Chaudhuri, “Finding Faces in Photographs,” Proc. Sixth IEEE Int’l Conf. Computer Vision, pp. 640- 645, 1998. [33] http://www.icg.isy.liu.se/candide/ -７１- [34] J. Ahlberg, CANDIDE-3 – an updated parameterized face, Report No. LiTH-ISY-R-2326, Image Coding Group, Dept. of EE, Linköping University, Sweden, January 2001. [35] MPEG Working Group on Visual, International Standard on Coding of Audio-Visual Objects, Part 2 (Visual), ISO-14496-2, 1999. [36] M. Kampmann and J. Ostermann, “Automatic adaptation of a face model in a layered coder with an object-based analysis –synthesis layer and a knowledge-based layer,” Signal Processing: Image Commun., vol. 9, no.3, pp.201-220, March 1997. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/25776 | - |
| dc.description.abstract | 能做出表情變化的人臉模型在3Ｄ遊戲，電影，線上交談系統，網路虛擬表現和影像會議系統上極為重要。現在大部分商業用途上的方法是用3D scanner來掃瞄一個真人並做出人臉模型。但是致命的缺點是一般人幾乎不可能使用價格昂貴的3D Scanner。
在這篇論文中我們提出了一個用便宜的數位相機和電腦來做出人臉模型的方法。只用了兩張照片就可有效的生成逼真的的人臉表情動畫。這個模型模擬表情時候是用肌肉模型為基礎。臉部肌肉參數可由攝取到的image sequences來得到。 此外我們提出了一個臉部偵測的演算法。首先我們使用YCbCr來偵測出大概的人臉區域。接著利用人臉的對稱性和眼睛，嘴巴等的灰階值特性來找出我們要的特徵點。當表情變化的時候，根據特徵點的位置我們可以計算出變化量。最後根據變化量我們可以產生逼真的人臉動畫。 我們在WinsowsXP上驗證此系統的可行性。我們並調整人臉模型的多邊型數目和顏面筋的彈性係數來產生高品質的人臉動畫。最後我們得到合理的成果並且希望將來可將此技術用在手機上視訊會議系統。 | zh_TW |
| dc.description.abstract | Animated face models are essential to 3D games, movies, online chat, virtual presence and video conferencing. Nowadays, some commercially available tools make use of 3D laser scanners to acquire facial images. However, the drawbacks of 3D laser scanners are their costs and they are not widely used. In this thesis, we present a method using inexpensive computers and video cameras to produce face
models directly from images acquired by cameras. This is an efficient approach to synthesize realistic facial expressions from only two facial images on a 3D facial muscle model. This model is capable of simulating facial dynamics through the muscle-based computation. The facial muscle parameters can be estimated from captured image sequences. Moreover, a face detection algorithm is proposed in this thesis. At first, YCbCr skin color model is used to detect the possible face area of the image. Second, we can obtain the feature points of the face by the symmetry of a face and the gray level characteristics of eyes and mouth. According to the positions of the feature points on the facial image, we can measure the quantity of transformation of the face when an expression appears. Finally, we can synthesize the realistic facial animations based on these. To prove its feasibility, we implemented the system on a Windows XP pc. We clarified conditions that could achieve high quality animations by optimizing the number of polygons that form the 3D face model and the stiffness values applied to the spring models embedded in the face model. Reasonable qualities for facial expression animations were obtained. We hope this method can be applied to video conference systems on mobile phones in the future. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T06:29:29Z (GMT). No. of bitstreams: 1 ntu-95-P93921004-1.pdf: 1670900 bytes, checksum: 99253d554ac2569ce14cb10d7c837891 (MD5) Previous issue date: 2006 | en |
| dc.description.tableofcontents | 中文摘要 …………………………………………………… I
ABSTRACT ……………………………………………………. II ACKNOWLEDGEMENTS ……………………………………………………. III CONTENTS …………………………...……………………… IV LIST OF FIGURES ……………………………………………………… VI LIST OF TABLES …..…………………………..……………………… VIII Chapter１Introduction 1.1 Motivation …………………………………………………… 1 1.2 Objectives ……………………………………………………. 2 1.3 Related Works ……………………………………………………. 3 1.4 System Overview …..……………………….…………………….… 6 1.5 Thesis organization …………………………………………………… 8 Chapter 2 Face modeling 2.1 Facial Muscle Model …………………………………………………. 9 2.2 Regions of face model …………………………………………………. 13 2.3 Automatically Modeling …………………………………………………. 15 Chapter 3 System Implementation 3.1 The proposed system …………………………… 19 3.2 System Implementation …………………………… 20 3.3 Comparison of 3D face modeling tools …………………………… 21 3.4 Face Tracking ..………………….……… 24 3.5 Displacement of Feature Points and Non-feature Points …………..………… 25 3.6 Facial Expressions …………………………… 2 6 3.7 Facial Animations ……………………………. 27 Chapter 4 Face Detection and Facial Feature Extraction 4.1 Color-based Approach …………………………… 31 4.2 Sobel Filter and Wavelet transformation ……………………………. 35 4.3 Symmetry-based Approach …………………………… 39 4.4 Facial Feature Extraction ..………………….……… 40 4.5 Estimation of the movement of the feature points …………………………… 42 -VChapter 5 Experimental Results and Discussion 5.1 Relationship Between Quality and Numbers of Polygons …………………… 44 5.2 Relationship Between Quality and Spring Constant ….………………… 47 5.3 Results of Facial Expression Animations ………….………… 48 5.4 Comparisons with Candide ……………………. 63 5.5 Discussion …………...……… 66 Chapter 6 Conclusion and Future Work 6.1 Conclusion ……………………………………………………………… 67 6.2 Future Work ……………………………………………………………… 68 REFERENCES ……………………………… 69 | |
| dc.language.iso | en | |
| dc.subject | 臉部表情 | zh_TW |
| dc.subject | 人臉偵測 | zh_TW |
| dc.subject | 肌肉模型 | zh_TW |
| dc.subject | 3D人臉模型 | zh_TW |
| dc.subject | muscle model | en |
| dc.subject | 3D Face Model | en |
| dc.subject | facial expression | en |
| dc.subject | face detection | en |
| dc.title | 以偵測特徵變形來建構逼真3D臉部動畫 | zh_TW |
| dc.title | Realistic 3D Facial Animation Using Parameter-based Deformation | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 94-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 鄭士康,傅楸善,李嘉晃 | |
| dc.subject.keyword | 3D人臉模型,臉部表情,人臉偵測,肌肉模型, | zh_TW |
| dc.subject.keyword | 3D Face Model,facial expression,face detection,muscle model, | en |
| dc.relation.page | 71 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2006-07-26 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電機工程學研究所 | zh_TW |
| 顯示於系所單位： | 電機工程學系 | |
文件中的檔案：
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-95-1.pdf 未授權公開取用 | 1.63 MB | Adobe PDF |
系統中的文件，除了特別指名其著作權條款之外，均受到著作權保護，並且保留所有的權利。