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Taipei, Taiwan

The Taipei National University of the Arts is a national university in Guandu, Beitou District, Taipei, Taiwan. Wikipedia.

Tsai J.,Tamkang University | Hsiao F.-Y.,Tamkang University | Li Y.-J.,Tamkang University | Shen J.-F.,Taipei National University of the Arts
Acta Astronautica | Year: 2011

In this paper we study the potential application of a quantum search algorithm to spacecraft navigation with a focus on attitude determination. Traditionally, attitude determination is achieved by recognizing the relative position/attitude with respect to the background stars using sun sensors, earth limb sensors, or star trackers. However, due to the massive celestial database, star pattern recognition is a complicated and power consuming job. We propose a new method of attitude determination by applying the quantum search algorithm to the search for a specific star or star pattern. The quantum search algorithm, proposed by Grover in 1996, could search the specific data out of an unstructured database containing a number N of data in only O(N) steps, compared to an average of N/2 steps in conventional computers. As a result, by taking advantage of matching a particular star in a vast celestial database in very few steps, we derive a new algorithm for attitude determination, collaborated with Grover's search algorithm and star catalogues of apparent magnitude and absorption spectra. Numerical simulations and examples are also provided to demonstrate the feasibility and robustness of our new algorithm. © 2010 Published by Elsevier Ltd. Source

Way D.-L.,Taipei National University of the Arts | Chang Y.-S.,National Chiao Tung University
Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an | Year: 2015

Hair rendering is one of the major research topics in computer graphics. A lot of papers on hair modeling have focused on photo-realistic rendering. This paper proposes a stylized cartoon hair rendering flow diagram including animated hair strand creation, stroke path generation, brush stroke line simulation, and expressive hair rendering. A reordering mechanism addresses depth and stroke line rendering for a suitable performance and temporal coherence. The proposed method creates a delicate expression similar to an artists drawing. To validate real-time performance, all stroke effects are rendered with different shaders on a graphics processing unit. The method is flexible enough to allow users to select shader effects and control the parameters of each activated shader to create esthetically pleasing results. Finally, the proposed method produces excellent experimental results. These results are compared to the results of previous studies. © 2014 The Chinese Institute of Engineers. Source

Way D.-L.,Taipei National University of the Arts | Hsieh C.-H.,National Chiao Tung University
Computer Animation and Virtual Worlds | Year: 2015

Three dimensional street art illusions have become more popular in recent years. Many of them are drawn on pavement such as streets, sidewalks, and town squares. It is often known as 3D chalk art, where a 2D artwork is drawn on the street, giving the viewer a 3D optical illusion from a certain perspective. This paper supplies chalk stylized renderings for 3D models and synthesizes 3D objects into a realistic photograph. Users can input one photo for the 3D model. First, a camera position is achieved by using a camera calibration algorithm. Second, a chalk stylized rendering was applied to create an artistic image of the 3D models using the same camera position. Then, the non-photorealistic rendering image is composited into a source photograph using a modified Poisson approach. All of the enhanced pavement texture details are also blended into the object's image. The major contribution of this paper is providing a user to create any interesting and attractive 3D illusionary art without physically drawing pictures on the pavement. Finally, the proposed method is demonstrated using various experimental 3D street art illusion images. Copyright © 2014 John Wiley & Sons, Ltd. Source

Yang Y.-H.,National Chengchi University | Tsaih R.-H.,National Chengchi University | Bhikshu H.,Taipei National University of the Arts
International Journal of Digital Content Technology and its Applications | Year: 2011

The purpose of this study was to propose a multi-layer topic map analysis using co-word analysis of informetrics with Growing Hierarchical Self-Organizing Map (GHSOM). The topic map illustrated the delicate intertwining of subject areas and provided a more explicit illustration of the concepts within each subject area. We applied GHSOM, a text-mining Neural Networks tool, to obtain a hierarchical topic map. After taking up one example of altruism in evaluation, we suggest that topic map may disclose some important facts from a whole bunch of data. Source

Tsai C.-H.,University of California at Berkeley | Kuo C.-H.,Tamkang University | Horng W.-B.,Tamkang University | Chen C.-W.,Taipei National University of the Arts
Language Learning and Technology | Year: 2012

This paper reports on a study that investigates how different learning methods might affect the learning process of character handwriting among beginning college learners of Chinese, as measured by tests of recognition, approximate production, precise production, and awareness of conventional stroke sequence. Two methodologies were examined during character learning: a worksheet numbering system (the most prevailing workbook method used to learn characters) and a theoretically grounded handwriting system (a multimedia method). A repeated-measures MANOVA showed that under the multimedia treatment, novice learners with no prior character writing experience performed better on all four measures, and first-year learners with six months of character-writing experience only performed better in precise production and awareness of conventional sequence. Variations of character formation produced in both treatments, and learners' perceptions were also analyzed to determine the effects of the two methods. Educational implications in the teaching and learning of character handwriting are provided based on the empirical results. © 2012. Source

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