1,720,986 research outputs found
Supplementary data for Xiao-Luo-Wan treats propylthiouracil-induced goiter with hypothyroidism in rats through the PI3K-AKT/RAS pathways based on UPLC/MS and network pharmacology
No full textSupplementary data for Xiao-Luo-Wan treats propylthiouracil-induced goiter with hypothyroidism in rats through the PI3K-AKT/RAS pathways based on UPLC/MS and network pharmacolog
Skeleton-driven Animation Transfer
No full text隨著電影、網路遊戲、模擬系統的發達，三維立體模型現今已經成為我們生活中不可或缺的一部份。而要使一個三維立體模型能夠作出動作，最常被使用的方法就是必需要由美工人員先替此模型建出一套骨幹，並將模型上的所有網格與此骨幹建立出影響權重關係，之後在每一個關鍵影格調整骨幹的姿勢，使三維立體模型作出一連串的動畫。這樣的過程是很繁瑣的，此外，一般在網際網路上我們可以很容易地就搜尋到釵h三維立體模型，但是這些三維模型幾乎都是只具有網格的結構，而沒有附上可用來編輯動作的骨幹，因此就算我們想要將一模一樣的動作套到不同的三維立體模型上，還是得重覆之前所述的工作。
在此論文中，我們提出了利用參數化找出目標及來源兩個三維立體模型的關係，並根據此關係來作動作複製，使得原本僅具有網格結構的目標三維立體模型，也能夠產生與來源三維立體模型一樣架構的骨幹及權重關係，並作出類似的動作。整個演算法分成幾大部份，首先必需半自動選出兩個三維立體模型相對應的重要特徵，之後再將三維立體模型作平面的參數化，並依照先前所找出的重要特徵作對齊，之後根據此參數化平面，可以找到兩個三維立體模型所有網格的對應關係。一旦找到了這項對應，就可以重建出一樣架構的骨幹，並將所有與動畫相關的資訊都轉移過去，以完成動作的複製。
這套系統旨在幫助美工人員能夠很快速地先將相同的動作套用到各種不同的三維立體模型上，並產生一樣架構的骨幹及權重關係，之後，我們的系統能夠將新產生出來的動作轉成Maya的檔案格式，以供美工人員到Maya裡面去微調每個關鍵網格。此外，由於這套系統的介面及操作流程相當簡單，因此針對像對使用Maya這樣複雜軟體不是很熟悉的初學者而言，是相當方便直覺的。As the fundamental building blocks of movies, networking computer games, and simulation systems, 3D models have become an important part of our daily life recently. The common solution for driving a 3D model move is building a skeleton and setting the binding weight for it by artist, and then key-pose editing is necessary. Even when we want to create the same motion sequence for different 3D models, we still have to repeat the process. So it is very lengthy and time consuming to create an imposing scene such as full of soldiers or dancers. Hence we propose an efficient system to clone a skeleton-driven model to another new character in this paper.
To clone the motion of a source model, which motion is driven by its skeleton, to another one, the basic idea is that we have to construct the same skeleton structure for the target model. Since the motion data is always saved as the attributes of the vertices, in order to transfer the skeleton and all of the motion data to the target model, we utilize surface parameterization to find the correspondence of all vertices between source and target models. Using this correspondence, we also can transfer the information including color, texture, skeleton and binding weight from the source model to the target one.
The whole process was abstracted as follows. First, the user needs to dissect both of the two models into homologous patches and manually mark some common features of them. Since the patches dissected from the two models are disk-like, they can be mapped to a plane using discrete conformal mapping. In order to compute better correspondences between a pair of homologous patches, we use a foldover-free warping scheme to align those features. Then the correspondence of all vertices can be obtained by overlaying the two aligned embeddings. To transfer a skeleton, we select two vertices as the markers for each joint of the skeleton and remember their numerical relation to the joint. Because of the consistent correspondence, we can reconstruct the skeleton of the same structure for target model. Once the motion data is transferred, our system can clone the motion from the source model to the target one.
Our system aimed at speeding up and facilitating the process of cloning animation to different 3D models. We can efficiently transfer skeleton and binding weight by only mark few vertices manually. Our system can convert transferred motion data to the Maya file format, so that the artists can refine the cloned key poses in Maya.Chapter 1 Introduction 1
1.1 Motivation 1
1.2 System Overview 3
1.3 Previous Work 4
1.3.1. Decompose into Patches 4
1.3.2. Planar Parameterization 9
1.3.3. Spherical Parameterization 11
1.3.4. Feature alignment 11
1.4 Animation Data 12
1.4.1. Skeleton 12
1.4.2. Binding Weight 12
1.4.3. Key-Frame Poses 13
1.5 Contribution 14
1.6 Organization 15
Chapter 2 System Pipeline 17
2.1 System Input/Output 17
2.2 ASF/AMC/WGT File Format 17
2.2.1. ASF 17
2.2.2. AMC 18
2.2.3. WGT 19
2.3 System Work Flow 19
2.3.1. Previous Prepare 19
2.3.2. Kernel 20
2.3.3. Refinement 20
Chapter 3 Features Suggestion 21
3.1 Introduction 21
3.2 Find Tip Features by ReebGraph 21
3.3 Find Join Features by Decomposition 25
3.4 Refine Manually 27
Chapter 4 Parameterization 29
4.1 Introduction 29
4.1.1. Coarse-to-fine spherical parameterization and warping over sphere 29
4.1.2. Spring spherical parameterization 31
4.2 Conformal map 33
4.3 Combine Relaxation to Free Fold-over 34
4.4 Feature Alignment 35
4.4.1. Use Radial Basis Function 37
4.4.2. Use Fold-over Free Warping Scheme 37
4.5 Correspondence Representation 39
4.6 Results 40
Chapter 5 Skeleton Transfer 47
5.1 Introduction 47
5.2 Reconstruct Skeleton 47
5.3 Results 49
Chapter 6 Animation Clone 51
6.1 Introduction 51
6.2 Animation Clone 51
6.3 Results 52
Chapter 7 Performance and Results 55
Chapter 8 Conclusion and Future Works 61
8.1 Conclusion 61
8.2 Future Works 61
References 6
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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