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Anjyo K.,OLM Digital Inc. | Ochiai H.,Kyushu University
Synthesis Lectures on Computer Graphics and Animation

This synthesis lecture presents an intuitive introduction to the mathematics of motion and deformation in computer graphics. Starting with familiar concepts in graphics, such as Euler angles, quaternions, and affine transformations, we illustrate that a mathematical theory behind these concepts enables us to develop the techniques for efficient/effective creation of computer animation. This book, therefore, serves as a good guidepost to mathematics (differential geometry and Lie theory) for students of geometric modeling and animation in computer graphics. Experienced developers and researchers will also benefit from this book, since it gives a comprehensive overview of mathematical approaches that are particularly useful in character modeling, deformation, and animation. Copyright © 2014 by Morgan & Claypool. Source

Kawamoto S.,Japan Advanced Institute of Science and Technology | Kawamoto S.,Japan Advanced Telecommunications Research Institute International | Yotsukura T.,OLM Digital Inc. | Nakamura S.,Nara Institute of Science and Technology
APSIPA ASC 2011 - Asia-Pacific Signal and Information Processing Association Annual Summit and Conference 2011

This paper gives an overview of our lip-synch animation production framework with practical tools for making 3D animation efficiently based on pre-scoring. Our framework is so simple and easy to use that it can be applied to construct various systems: a management tool for making lip-synch animation, a batch processing tool for mass production, Autodesk Maya plug-in software for practical workplaces, and amusement systems. We also demonstrate practicality of our framework through several practical applications. Our framework worked well in the production at practical workplaces of cartoon animations. Source

Baxter A.L.,Georgia Regents University | Watcha M.F.,Baylor College of Medicine | Baxter W.V.,OLM Digital Inc. | Leong T.,Emory University | Wyatt M.M.,Baylor College of Medicine

OBJECTIVE: The lack of a widely used, validated measure limits pediatric nausea management. The goal of this study was to create and validate a pictorial scale with regular incremental levels between scores depicting increasing nausea intensity. METHODS: A pictorial nausea scale of 0 to 10 with 6 faces (the Baxter Retching Faces [BARF] scale) was developed in 3 stages. The BARF scale was validated in emergency department patients with vomiting and in healthy patients undergoing day surgery procedures. Patients were presented with visual analog scales for nausea and pain, the pictorial Faces Pain Scale-Revised, and the BARF scale. Patients receiving opioid analgesics or antiemetic agents had their pain and nausea assessed before and 30 minutes after therapy. Spearman's ρ correlation coefficients were calculated. A Wilcoxon matched-pair rank test compared pain and nausea scores before and after antiemetic therapy. RESULTS: Thirty oncology patients and 15 nurses participated in the development of the scale, and 127 patients (52, emergency department; 75, day surgery) ages 7 to 18 years participated in the validation. The Spearman ρ correlation coefficient of the first paired BARF and visual analog scale for nausea scores was 0.93. Visual analog scales for nausea and BARF scores (P = .20) were significantly higher in patients requiring antiemetic agents and decreased significantly after treatment, while posttreatment pain scores (P = .47) for patients receiving only antiemetic agents did not. CONCLUSIONS: We describe the development of a pictorial scale with beginning evidence of construct validity for a self-report assessment of the severity of pediatric nausea. The scale had convergent and discriminant validity, along with an ability to detect change after treatment. Copyright © 2011 by the American Academy of Pediatrics. Source

Kawamoto S.-I.,Japan Advanced Institute of Science and Technology | Kawamoto S.-I.,Japan National Institute of Information and Communications Technology | Yotsukura T.,OLM Digital Inc. | Nakamura S.,Japan National Institute of Information and Communications Technology | Morishima S.,Waseda University
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

The paper describes voice assignment techniques for synchronized scenario speech output in an instant casting movie system that enables anyone to be a movie star using his or her own voice and face. Two prototype systems were implemented, and both systems worked well for various participants, ranging from children to the elderly. © 2011 Springer-Verlag. Source

Kuwahara D.,Waseda University | Maejima A.,Waseda University | Maejima A.,OLM Digital Inc. | Morishima S.,Waseda Research Institute for Science and Engineering
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

Facial aging and rejuvenation simulation is a challenging topic because keeping personal characteristics in every age is difficult problem. In this demonstration, we simulate a facial aging/rejuvenating only from a single photo. Our system alters an input face image to aged face by reconstructing every facial component with face database for target age. An appropriate facial components image are selected by a special similarity measurement between current age and target age to keep personal characteristics asmuch as possible. Our systemsuccessfully generated aged/ rejuvenated faces with age-related features such as spots, wrinkles, and sagging while keeping personal characteristics throughout all ages. © Springer International Publishing Switzerland 2015. Source

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