Computer Graphics and Animation - Science topic

2023 International Joint Conference on Computer Vision and Pattern Recognition (CCVPR 2023) will take place in Oxford, the United Kingdom on September 15-17, 2023. https://www.ccvpr.org/ CCVPR 2023 attracts a broad international community of researchers, engineers, scientists, and industry professionals to a common platform for sharing and creati...

3D object design is one of the most sought-after topics due to its application in many domains including Medical imaging, Virtual Reality, Computer Graphics, Animation etc. Manual 3D object design is inherently an expensive and labour intensive task. Several techniques such as GAN (Generative Adversarial Nets), SFM (Structure from Motion) and MVS (...

Film production in developed nations have gone digital, and the old ways of producing movies is gradually dying. The Nigerian Movie Industry, popularly referred to as ‘Nollywood’ is yet to come to terms with this, despite being ranked the third highest grossing movie maker in the world, behind ‘Hollywood’ in the United States of America and ‘Bollyw...

The relationship between animation and virtual reality goes beyond applying techniques or softwares, which help to produce video games, commercials o movies. Most studies of virtual reality found in abstracts' conferences or scientific journals, where animation is part of, like International Journal of Computer Graphics & Animation, rely on technol...

Due to varied personal, social, or even cultural situations, people sometimes conceal or mask their true emotions. These suppressed emotions can be expressed in a very subtle way by brief movements called microexpressions. We investigate human subjects' perception of hidden emotions in virtual faces, inspired by recent psychological experiments. We...

Since two years ago, intensive work has been done in defining a new Computer Animation curriculum at the Faculty of Technical Sciences in Novi Sad, Serbia. The result of these efforts is an accredited degree program Computer Graphic – Animation in Engineering, for Undergraduate Academic Studies and Master Academic Studies. These programs were accre...

This article describes application of Fly-Through animation, especially in architecture. It shows application of this animation technique on Computer Graphics – Animation in Engineering studies and on Architecture and Urban Planning studies at the Faculty of Technical Sciences in Novi Sad. Three historically significant buildings have been modeled...

This paper describes a model for example-based, photo-realistic rendering of eye movements in 3D facial animation. Based on 3D scans of a face with different gaze directions, the model captures the motion of the eyeball along with the deformation of the eyelids and the surrounding skin. These deformations are represented in a 3D morphable model. Un...

This paper presents a new approach to facilitate reuse and remix- ing in character animation. It demonstrates a method for automati- cally adapting existing skeletons to different characters. While the method can be applied to simple skeletons, it also proposes a new approach that is applicable to high quality animation as it is able to deal with c...

This study aimed to explore the feasibility of using computer graphics (CG) animations to evaluate perceptual skills in tennis. In Experiment 1, we used video images or CG animations to examine the visual search behaviors and the accuracy of anticipating serve direction of 18 skilled tennis players. Participants viewed the racket area for a longer...

Mobile phone e-mail is increasingly being chosen by consumers as their primary communication tool. Messages exchanged among mobile phone users frequently contain “emoticons (smileys)” and “emoji (pictograms)”. Some consumers have started to use services that add a relevant animated image to a message. Consumers will start to exchange animated messa...

Abstract Motion capture (mocap) data is commonly,used to recreate complex,human,motions in computer,graphics. Markers are placed on an actor, and the captured movement of these markers allows us to animate computer-generated characters. Technologies have been introduced which allow this technique to be used not only to retrieve rigid body transform...

Este artigo aborda uma série de tecnologias de domínio público nas áreas de Computação Grá ca, Realidade Virtual e Animação por Computador, enfocando ferramentas de programação para apoio ao desenvolvimento de sistemas grá cos interativos. A primeira parte apresenta duas tecnologias de menor nível de abstração para a geração de interfaces grá cas,...

This course discusses some public domain tecnologies in the fields of Computer Graphics, Virtual Reality and Computer Animation, focusing on programming tools to support the development of interactive graphic systems. The first part presents two tecnologies of lower abstraction level used for the generation of graphic interfaces, geometric drawings...

Computer graphics animation system improves coordination and communication among engineering, construction and client organizations. Communication expedited leads to an substantial improvement of quality and productivity in the AEC industry. The research introduces the application of computer graphics animation as a tool for the computer integrated...

In this paper, we propose a content-oriented no-reference (NR) perceptual video quality assessment (VQA) method for computer graphics (CG) animation videos. First, we extract features in terms of spatiotemporal information and its visual perception from the videos as inputs of our proposed artificial neural network-based VQA model. Second, to facil...

In recent years, some computer graphics (CG) animations in which musical instrument performance itself is important in the story, have attracted attention, and it is necessary to actually draw performance scenes by musical instruments. If we can automatically and semi-automatically generate CG animations including the performance of musical instrum...

We developed a system specifically designed to help nonqualified dance instructors teach dance using motion capture. The goal is to allow dancers to easily self-evaluate their own performances by comparing it to a standard example. We began by measuring dance students using motion capture and developing animations based on the collected data. We th...

Many vocational schools and universities offer lectures on non-stereoscopic 3D computer graphics (3DCG) animation production, as well as practical 3DCG software operation, modeling, and animation production. However, relatively few of these educational institutions provide lectures on stereoscopic 3D (S3D). To address this gap, we developed two 15-...

To assess the effectiveness of digital animations for postpartum intrauterine device (IUD) education in the hospital setting. A digital animated video was produced in 2012 illustrating the pertinent information about IUD contraception. From February to September 2013, postpartum patients at Jackson Memorial Hospital were randomly assigned to counse...

Sono sempre stato affascinato dai mondi virtuali creati col computer, mi sia concesso dunque un – poco o punto scientifico – incipit oleo(bio)grafico. Quando hanno cominciato a uscire dai laboratori di ricerca, le immagini create col computer erano molto più semplici di quelle attuali ma richiedevano dei supercomputer per essere prodotte. Quelle pr...

This study focus on the relationship between physical shape and street line elements in the space of three-way intersection in anticipation. Analyzed to clarify their relationship. Seeks to compare each of anticipation by the presence or absence of street line elements. Show the results.(1）Maximum position anticipation：Showed a tendency to trend as...

Film production in developed nations have gone digital, and the old ways of producing movies are gradually dying. The Nigerian Movie Industry, popularly referred to as „Nollywood‟ is yet to come to terms with this, despite being ranked the third highest grossing movie maker in the world, behind „Hollywood‟ in the United States of America and „Bolly...

We present an efficient algorithm for object-space proximity queries between multiple deformable triangular meshes. Our approach uses the rasterization capabilities of the GPU to produce an image-space representation of the vertices. Using this image-space representation, inter-object vertex-triangle distances and closest points lying under a user-...

Die Texturadvektion beschreibt den Transport von Bildern oder Dichtefeldern mithilfe eines Vektorfeldes. Dies ist ein essentieller Bestandteil der modernen Computergrafik und Animation. Hierbei wird die Texturadvektion zur Bereicherung von visuellen Details oder zum Transport von physikalischen Daten, wie zum Beispiel Rauchdichte oder Temperatur, v...

Abstract We present a novel L4RW (Laziness-based Realistic Real-time Responsive Rebalance in Walking) technique to synthesize 4RW animations under unexpected external perturbations with minimal locomotion effort. We first devise a lazy dynamic rebalance model, which specifies the dynamic balance conditions, defines the rebalance effort, and selects...

Sono sempre stato affascinato dai mondi virtuali creati col computer, mi sia concesso dunque un – poco o punto scientifico – incipit oleo(bio)grafico. Quando hanno cominciato a uscire dai laboratori di ricerca, le immagini create col computer erano molto più semplici di quelle attuali ma richiedevano dei supercomputer per essere prodotte. Quelle pr...

In this paper we present an extension of dynamic mesh compression techniques based on PCA. Such representation allows very compact representation of moving 3d surfaces, however it requires some side information to be transmitted along with the main data. The biggest part of this information is the PCA basis, and since the data can be encoded very e...

To revitalize the city centers, it is very important to increase the attractiveness of the urban space as a whole. Although the actual city consists of many landscape objects including dynamic objects like transportation systems and static objects like buildings. The purpose of this study is to analyze effects of future urban landscape using Comput...

As the use of 3DCAD data became widespread in designing products in manufacturing, attempts have been made to shorten lead time and reduce cost of production preparation utilizing 3DCAD data for launching assembly lines. In order to create assembly plans not only efficient but easy for operators to operate ('easy-to-operate'), this study presents a...

Creating long motion sequences is a time-consuming task even when motion capture equipment or motion editing tools are used. In this paper, we propose a system for creating a long motion sequence by combining elementary motion clips. The user is asked to first input motions on a timeline. The system then automatically generates a continuous and nat...

Spatial skills necessary to design and analyze orthographic drawings are sometimes lacking in interior design students. It was hypothesized that viewing computer generated and animated graphics could be useful in the instruction of such skills by replicating mental images of object rotation and dimensional transformation. The major purpose of this...

Abstract Fast contact handling of soft articulated characters is a computationally challenging problem, in part due to complex interplay between skeletal and surface deformation. We present a fast, novel algorithm based on a layered representation for articulated bodies that enables physically-plausible simulation of animated characters with a high...

Abstract CG character animations, in which CG characters engage in conversations, are widely used in multimedia contents such as videos and games. In constructing such an animation, we should consider about many factors, such as the content of the utterance and the state of conversation, which necessitates a large amount of time and labor. To deal...

Reuse of previously created animation characters is very important for development of 3D animation movies and other contents. This report presents a technique for visualizing the animation data clustered based on their structures and motions. The technique uses "Heiankyo View" to visualize the hierarchical data storing the clustered animation data....

Abstract Physically based deformable models have been widely embraced by the Computer Graphics community. Many problems outlined in a previous survey by Gibson and Mirtich have been addressed, thereby making these models interesting and useful for both offline and real-time applications, such as motion pictures and video games. In this paper, we pr...

This paper presents a simple and efficient technique for synthesizing high-fidelity motions by attaching, or splicing, the upper-body action of one motion example to the lower-body locomotion of another. Existing splicing algorithms do little more than copy degrees of freedom (DOFs) from one motion onto another. This naïve DOF replacement can produ...

The simulation of complex layers of folds of cloth can be handled through algorithms which take the physical dynamics into account. In many cases, however, it is sufficient to generate wrinkles on a piece of garment which mostly appears spread out. This paper presents a corresponding fully GPU-based, easy-to-control, and robust method to generate a...

Project-Based Learning (PBL) is an educational strategy to improve student's learning capability that, in recent years, has had a progressive acceptance in undergraduate studies. This methodology is based on solving a problem or project in a student working group. In this way, PBL focuses on learning the necessary tools to correctly find a solution...

This paper presents a parametric performance-based model for facial animation that was inspired by Facial Action Coding System (FACS) developed by P. Ekman and F. W. Friesen. The FACS consists of 44 Action Units (AUs) corresponding to visual changes on the face. Additionally, predefined co-occurrence rules describe how different AUs influence each...

To reduce the cost of producing 3D computer graphics (3DCG) educational contents for e-learning systems and to improve the capability of self-learning systems, we developed a new self-learning system based on a Cyber Person, a human-shaped software robot made by using 3DCG and speech synthesis. Our system includes a 3DCG stage, many stage parts (e....

A method is proposed for photo-realistic modeling and visualization of a growing tree. Recent visualization methods have focused on producing smoothly blending branching structures, however, these methods fail to account for the inclusion of non-smooth features such as branch bark ridges and bud scale scars. These features constitute an important v...

Synthesis and re-targeting of facial expressions is central to facial animation and often involves significant manual work in order to achieve realistic expressions, due to the difficulty of capturing high quality dynamic expression data. In this paper we address fundamental issues regarding the use of high quality dense 3-D data samples undergoing...

Pasting somebody's face into an existing image with traditional photo retouching and digital image processing tools has only been possible if both images show the face from the same viewpoint and with the same illumination. However, this is rarely the case for given pairs of images. We present a system that exchanges faces across large differences...

Crowd simulation for virtual environments offers many challenges centered on the trade-offs between rich behavior, control and computational cost. In this paper we present a new approach to controlling the behavior of agents in a crowd. Our method is scalable in the sense that increasingly complex crowd behaviors can be created without a correspond...

This paper presents a method for photo-realistic animation that can be applied to any face shown in a single imageor a video. The technique does not require example data of the person's mouth movements, and the image to beanimated is not restricted in pose or illumination. Video reanimation allows for head rotations and speech in theoriginal sequen...

We present a new fluid animation technique in which liquid and gas interact with each other, using the exampleof bubbles rising in water. In contrast to previous studies which only focused on one fluid, our system considersboth the liquid and the gas simultaneously. In addition to the flowing motion, the interactions between liquid andgas cause buo...

This paper introduces a fast continuous collision detection technique for polyhedral rigid bodies. As opposed to most collision detection techniques, the computation of the first contact time between two objects is inherently part of the algorithm. The method can thus robustly prevent objects interpenetrations or collisions misses, even when object...

Three-dimensional (3D) computer animation is not commonly used to illustrate surgical techniques. This article describes the surgery-specific processes that were required to produce animations to teach cleft lip and palate surgery. Three-dimensional models were created using CT scans of two Chinese children with unrepaired clefts (one unilateral an...

Staying on top of technological change can be a challenge, but this book brings help. Presenting an up-to-date overview of the technologies that are having an impact on education, this fourth edition provides you with the latest information about a large variety of topics and demonstrates how technologies can best be applied in educational settings...