• Title/Summary/Keyword: 3D Morphing

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A Facial Animation System Using 3D Scanned Data (3D 스캔 데이터를 이용한 얼굴 애니메이션 시스템)

  • Gu, Bon-Gwan;Jung, Chul-Hee;Lee, Jae-Yun;Cho, Sun-Young;Lee, Myeong-Won
    • The KIPS Transactions:PartA
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    • v.17A no.6
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    • pp.281-288
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    • 2010
  • In this paper, we describe the development of a system for generating a 3-dimensional human face using 3D scanned facial data and photo images, and morphing animation. The system comprises a facial feature input tool, a 3-dimensional texture mapping interface, and a 3-dimensional facial morphing interface. The facial feature input tool supports texture mapping and morphing animation - facial morphing areas between two facial models are defined by inputting facial feature points interactively. The texture mapping is done first by means of three photo images - a front and two side images - of a face model. The morphing interface allows for the generation of a morphing animation between corresponding areas of two facial models after texture mapping. This system allows users to interactively generate morphing animations between two facial models, without programming, using 3D scanned facial data and photo images.

Production of Lip-sync Animation, 3D Character in Dialogue-Based Image Contents Work System by Utilizing Morphing Technique (Morphing 기법을 활용한 대화구문기반 영상 콘텐츠 저작도구 시스템 내 3D 캐릭터 Lip-sync Animation제작)

  • Jung, Won-Joe;Lee, Dong-Lyeor;Ryu, Seuc-Ho;Kyung, Byung-Pyo;Lee, Wan-Bok
    • Journal of Digital Convergence
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    • v.10 no.7
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    • pp.253-259
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    • 2012
  • In this study, the dialog syntax-based video content production flow for the character set, 'Form Noah' chart using the mouse, lip-sync Animation been making 3D characters were applying. Vertex Animation Morphing techniques by expressing the natural shape of the mouth for the characters engaging and the transmission of visual information for the viewers to be able to get a high intelligibility is considered.

Hair-Blending Method for 2D Virtual Color Hairstyler Based on Semi-automatic Field Morphing (반자동 필드 모핑에 기반한 2D 가상 컬러 헤어스타일러의 모발 블렌딩 방법)

  • Kwak, Noyoon
    • Proceedings of the Korea Contents Association Conference
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    • 2008.05a
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    • pp.3-9
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    • 2008
  • This paper is related to hair-blending for 2D virtual color hairstyler based on the semi-automatic field morphing. The proposed 2D virtual color hair-styler is characterized as generating virtual hairstyles using the variable morphing mask instead of the fixed one for the semi-automatic morphing, and then hair-blending the generated virtual hairstyles using sigmoid function around the boundary region of the variable morphing mask. The proposed method is able to generate the virtual hairstyles with an easy-to-use interface based on semi-automatic field morphing. According to the proposed method, a user can shorten the working time and even an unskilled user can obtain natural hairstyles as he or she designates a small number of external user inputs.

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A Study of 3D Virtual Fitting Model of Men's Lower Bodies in Forties by Morphing Technique. (모핑 기법을 활용한 40대 남성 하반신 가상모델 생성에 관한 연구)

  • Park, Sun-Mi;Nam, Yun-Ja;Choi, Kueng-Mi
    • Journal of the Korean Society of Clothing and Textiles
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    • v.31 no.3 s.162
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    • pp.463-474
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    • 2007
  • With rapid expansion in e-retailing of apparel business, personalized fitting model service shows the possibility as the differentiated marketing strategy in cyber shopping. According as necessity of personalized fitting model construction rises, it is tried personalized fitting model creation in several fields such as computer engineering, mechanical engineering, information engineering. But, because existent study was concentrated only on human body modeling, it does not reflect average morphological characteristics of human body properly. In this study, we wish to examine if morphing is fit for expressing characteristic of average human body shape and suggest desirable morphing. We used 3-D scan data of 254 Korean middle aged men collected by Size Korea 2004. The result of this study are as follows: Lower body types were categorized by height hip girth and lower drop(hip girth-navel girth) which were main factors of lower body shape. Then each factor was divided into 3 groups respectively, 30% in the middle, over 30%, under 30%. In 27 groups, the group which belonged to 30% in the middle of height, 30% in the middle of hip girth, 30% in the middle of lower drop was selected as a representative group. We tested geometrical figure by differ volume, tilt, position of point. And we created a representative type of men's lower bodies by morphing the representative group and analyzed it's horizontal, vertical sections. A representative type which was created by morphing reflected a real body and changed realistically at the part of hip, crotch, calf muscle and so on. A cross sections of a representative type were similar to average cross sections of the representative group in size and shape. So it was proved that morphing was successful.

Development of a Representative Model for Different Body Shapes of 18-24 Aged Women - An Application of a 3D Morphing Technique - (3차원 모핑기법에 의한 18-24세 여성의 체형별 대표 형상 도출을 위한 연구)

  • Shin, Ju-Young;Choi, Young-Lim;Nam, Yun-Ja
    • Fashion & Textile Research Journal
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    • v.13 no.4
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    • pp.590-599
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    • 2011
  • The purpose of this study is to classify body types into different groups based on 3D scanned data, and identify the representative body shapes that most frequently appear in the groups. A high frequency range was defined based on body measurement data, and representative shapes were identified based on body scan data of women aged 18-24. The major findings of this study are as follows. First, the three typical types of height, bust and drop mixes among Korean women aged 18-24 are as follows:) 155-88-N,) 160-82-A, and 165-85-A. Regarding the body type, the A and N types frequently appeared, while the H type was rare. Second, among the subjects of the high-frequency groups, upright bodies were selected as sample models and were used for morphing. An adjustment was made to the morphing results to reflect the body characteristics of the sample models evenly. Third, to verify the morphing results, the body sizes of the sample models and the created models were compared. The result showed that, the sizes were close to the average size of the sample models. Fourth, to verify whether the morphing processes adequately reflected the features of the body shapes, cross-section models of key body parts were made and the degree of representativeness was determined.

A Study on Realtime Mesh Deformation of 3D Avatar Body (3D 아바타의 실시간 체형 변형에 관한 연구 - 메쉬모핑 기법을 이용한 아바타 및 아이템의 체형변형)

  • Shin, In-Sup
    • 한국HCI학회:학술대회논문집
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    • 2008.02a
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    • pp.688-692
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    • 2008
  • All items from the 3d avatar system should be made to fit the avatar's physical form. However this method is not only a disadvantage in an economical perspective, but also it is difficult to satisfy the client's needs of avatar's variety form. To provide various forms of the avatars, the work load naturally increases. This research is about changing the 3d avatar's body shape based on 3d mesh morphing which allows the 3d avatar with smallest data possible. The result mesh could be generated from source and target mesh with the deformation ratio and all 3d items like hair style, pants, shoes and etc, which was made to fit to basic mesh also could be deformed automatically, to fit them to the result mesh as is. Even if the different physical avatar mesh body such as children style is added to 3d avatar system, it is not necessary to make the 3d avatar items which is fit to the new physical body, New avatar mesh body will be adopted to the 3d avatar system in real time.

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Improved Morphing Visualization Methodology for Effective 4D Expression of Railway Facility (철도시설의 효율적 4D구현을 위한 개선된 Morphing 시각화 방법론 구축)

  • Moon, Hyoun-Seok;Kwon, Jung-Hui;Kim, Chang-Hak;Ji, Sang-Bok;Kang, Leen-Seok
    • Proceedings of the KSR Conference
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    • 2006.11b
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    • pp.350-353
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    • 2006
  • Generally, 4D CAD can be used for visualizing construction schedule information in railway construction project. It is important that 3D CAD object should be represented by real construction situation according to construction site condition. However, it is difficult to visualize real construction situation in 4D CAD viewer because 3D objects should be separated by limited duration of each activity. This study suggests a morphing technology for visualizing 4D object by each activity schedule according to real construction progress.

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View Morphing for Generation of In-between Scenes from Un-calibrated Images (비보정 (un-calibrated) 영상으로부터 중간영상 생성을 위한 뷰 몰핑)

  • Song Jin-Young;Hwang Yong-Ho;Hong Hyun-Ki
    • Journal of KIISE:Computer Systems and Theory
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    • v.32 no.1
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    • pp.1-8
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    • 2005
  • Image morphing to generate 2D transitions between images may be difficult even to express simple 3D transformations. In addition, previous view morphing method requires control points for postwarping, and is much affected by self- occlusion. This paper presents a new morphing algorithm that can generate automatically in-between scenes from un-calibrated images. Our algorithm rectifies input images based on the fundamental matrix, which is followed by linear interpolation with bilinear disparity map. In final, we generate in-between views by inverse mapping of homography between the rectified images. The proposed method nay be applied to photographs and drawings, because neither knowledge of 3D shape nor camera calibration, which is complex process generally, is required. The generated in-between views can be used in various application areas such as simulation system of virtual environment and image communication.

Pivot Interpolation for Dynamic Locomotion Expression of Fishes (어류의 역동적 움직임 표현을 위한 기준점 적용 보간법)

  • Ryu, Nam-Hoon;Lee, Hye-Mi;Yoo, Bong-Gil;Kim, Eung-Kon
    • The Journal of the Korea institute of electronic communication sciences
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    • v.5 no.5
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    • pp.415-420
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    • 2010
  • Due to the improvement in PC performance and the development of computer graphics technology, high quality computer animation in various industrials is on the rise. This study suggests pivot interpolation to realize the process of expressing dynamic and natural motion of fish, the key of expressing the ocean landscape through the morphing technique. By applying fish tail motion, this study solves unnatural speed of the previous morphing technique and realizes the realistic swimming way without simple motion.

Parametric morphing of subject-specific NURBS models for Human Proximal Femurs Subject to Femoral Functions (해부학적 기능을 고려한 환자맞춤형 근위대퇴골 모델의 파라메트릭 변형 방안)

  • Park, Byoung-Keon;Wook, Chae-Jae;Kim, Jay-Jung
    • Korean Journal of Computational Design and Engineering
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    • v.16 no.6
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    • pp.458-466
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    • 2011
  • The morphology of a bone is closely associated with its biomechanical response. Thus, much research has been focused on analyzing the effects of variation of bone morphology with subject-specific models. Subject-specific models, which are generally achieved from 3D imaging devices like CT and MRI, incorporate more of the detailed information that makes a model unique. Hence, it may predict individual responses more accurately. Despite these powerful characteristics, specific models are not easily parameterized to the extent possible with statistical models because of their morphologic complexities. Thus, it is still proven challenging to analyze morphologic variations of subject-specific models across changes due to aging or disease. The aim of this article is to propose a generic and robust parametric morphing method for a subject-specific bone structure. We demonstrate this by using the proposed method on a model of a human proximal femur. Automatic segmentation algorithms are also presented to parameterize the specific model efficiently. A total of 48 femur models were evaluated for defining morphing vector fields. Also, several anatomical and mechanical functions of femur were considered as morphing constraints, and the NURBS interpolating technique was applied in the method to guarantee the generality of our morphed results.