This paper presents a framework for on-line incremental 3D modeling useful for human computer interaction or telepresence applications We aim a free viewpoint approach based on users realistic representation to simulate a real face-to-face meeting Our contribution includes a new adaptation of the Crust algorithm for incremental reconstruction purposes an
We present a framework for controlling physics-based bipeds in a simulated environment, based on a variety of reference motions Unlike existing methods for control based on reference motions, our framework does not require preprocessing of the reference motion, nor does it rely on inverse dynamics or on-line optimization methods for torque computation It c
Recent work has shown the potential of basic perceptual properties of motion for notification, association and visual search Yet evidence from fields as diverse as perceptual science, social psychology and the performing arts suggest that motion has much richer communication potential in its interpretative scope A long history of research and practice i
Recent work has shown the potential of basic perceptual properties of motion for notification, association and visual search Yet evidence from fields as diverse as perceptual science, social psychology and the performing arts suggest that motion has much richer communication potential in its interpretative scope A long history of research and practice i
The communication of emotion and the creation of affect are core to creating immersive and engaging experiences, such as those in performance, games and simulation They often rely on atmospheric cues that influence how an environment feels The design of such ambient visual cues for affect is an elusive topic that has been studied by painters, theatre direc
The communication of emotion and the creation of affect are core to creating immersive and engaging experiences, such as those in performance, games and simulation They often rely on atmospheric cues that influence how an environment feels The design of such ambient visual cues for affect is an elusive topic that has been studied by painters, theatre direc
Visual artists and designers frequently use carefully crafted motion textures patterns of ambient motion throughout a scene to imbue the atmosphere with affect The design of such ambient visual cues is an elusive topic that has been studied by painters, theatre directors, scenic designers, lighting designers, filmmakers, producers, and artists for years
Historical and artistic handwritten books are valuable cultural heritage (CH) items, as they provide information about tangible and intangible cultural aspects from the past Massive digitization projects have made these kind of data available to a world-wide population, and pose real challenges for automatic processing In this scenario, document layout ana
Historical and artistic handwritten books are valuable cultural heritage (CH) items, as they provide information about tangible and intangible cultural aspects from the past Massive digitization projects have made these kind of data available to a world-wide population, and pose real challenges for automatic processing In this scenario, document layout ana
The study of cultural heritage involves many different activities, including digital data visualization, information analysis and sharing results Current technologies focus on providing better tools for data representation and processing, neglecting the importance of analysis and sharing In this paper, we present a software system, CHER-Ob, which offers po
The study of cultural heritage involves many different activities, including digital data visualization, information analysis and sharing results Current technologies focus on providing better tools for data representation and processing, neglecting the importance of analysis and sharing In this paper, we present a software system, CHER-Ob, which offers po
We introduce a new markerless 3D face tracking approach for 2D video streams captured by a single consumer grade camera Our approach is based on tracking 2D features in the video and matching them with the projection of the corresponding feature points of a deformable 3D model By this we estimate the initial shape and pose of the face To make the tracking
We introduce a new markerless 3D face tracking approach for 2D video streams captured by a single consumer grade camera Our approach is based on tracking 2D features in the video and matching them with the projection of the corresponding feature points of a deformable 3D model By this we estimate the initial shape and pose of the face To make the tracking
Art conservators now have access to a wide variety of digital imaging techniques to assist in examining and documenting physical works of art Commonly used techniques include hyperspectral imaging, 3D scanning and medical CT imaging However, most of the digital image data requires specialized software to view The software is often associated with a partic
Art conservators now have access to a wide variety of digital imaging techniques to assist in examining and documenting physical works of art Commonly used techniques include hyperspectral imaging, 3D scanning and medical CT imaging However, most of the digital image data requires specialized software to view The software is often associated with a partic
During the last decade a set of surface descriptors have been presented describing local surface features Recent approaches [COO15] have shown that augmenting local descriptors with topological information improves the correspondence and segmentation quality In this paper we build upon the work of Tevs et al [TBW 11] and Sun and Abidi [SA01] by presenting
The power and utility of volume rendering is increased by global illumination We present a hardware architecture, GI-Cube, designed to accelerate volume rendering, empower volumetric global illumination, and enable a host of ray-based volumetric processing The algorithm reorders ray processing based on a partitioning of the volume A cache enables efficien
The power and utility of volume rendering is increased by global illumination We present a hardware architecture, GI-Cube, designed to accelerate volume rendering, empower volumetric global illumination, and enable a host of ray-based volumetric processing The algorithm reorders ray processing based on a partitioning of the volume A cache enables efficien
We present a method Jor volume rendering of regular grids which takes advantage of 3D texture mapping hardware currently, available on graphics workstations Our method products accurate shading for arbitrary and dynamically changing directional lights, viewing parameters, and transfer functions This is achieved by hardware interpolating the data values and
We present a method Jor volume rendering of regular grids which takes advantage of 3D texture mapping hardware currently, available on graphics workstations Our method products accurate shading for arbitrary and dynamically changing directional lights, viewing parameters, and transfer functions This is achieved by hardware interpolating the data values and
We present two methods which connect today s polygon graphics hardware accelerators to Cube-5 volume rendering hardware, the successor to Cube4 The proposed methods allow mixing of both opaque and translucent polygons with volumes on PC class machines, while ensuring the correct compositing order of all objects Both implementations connect the two hardware
We present two methods which connect today s polygon graphics hardware accelerators to Cube-5 volume rendering hardware, the successor to Cube4 The proposed methods allow mixing of both opaque and translucent polygons with volumes on PC class machines, while ensuring the correct compositing order of all objects Both implementations connect the two hardware
We present a method for automatic reconstruction of permanent structures of indoor scenes, such as walls, floors and ceilings, from raw point clouds acquired by laser scanners Our approach employs graph-cut to solve an inside/outside labeling of a space decomposition To allow for an accurate reconstruction the space decomposition is aligned with permanent
Material design is the process by which artists or designers set the appearance properties of virtual surface to achieve a desired look This process is often conducted in a virtual synthetic environment however, advances in computer vision tracking and interactive rendering now makes it possible to design materials in augmented reality (AR), rather than pur
Material design is the process by which artists or designers set the appearance properties of virtual surface to achieve a desired look This process is often conducted in a virtual synthetic environment however, advances in computer vision tracking and interactive rendering now makes it possible to design materials in augmented reality (AR), rather than pur
In this paper we present a method that automatically synthesizes bump maps at arbitrary levels of detail in real-time The only input data we require is a normal density function; the bump map is generated according to that function It is also used to shade the generated bump map The technique allows to infinitely zoom into the surface, because more (consi
In this paper we present a method that automatically synthesizes bump maps at arbitrary levels of detail in real-time The only input data we require is a normal density function; the bump map is generated according to that function It is also used to shade the generated bump map The technique allows to infinitely zoom into the surface, because more (consi
This paper discusses how to squeeze volume rendering into as few bits per operation as possible while still retaining excellent image quality For each of the typical volume rendering pipeline stages in texture map volume rendering, ray casting and splatting we provide a quantitative analysis of the theoretical and practical limits for the required bit preci
Extensions to the texture-mapping support of the abstract graphics hardware pipeline and the OpenGL API are proposed to better support programmable shading, with a unified interface, on a variety of future graphics accelerator architectures Our main proposals include better support for texture map coordinate generation and an abstract, programmable model fo
Extensions to the texture-mapping support of the abstract graphics hardware pipeline and the OpenGL API are proposed to better support programmable shading, with a unified interface, on a variety of future graphics accelerator architectures Our main proposals include better support for texture map coordinate generation and an abstract, programmable model fo
Modeling the material appearance of physical materials requires access to the materials Sets of identical physical material models were prepared for distribution at the workshop on material appearance modeling 2014 (MAM2014) The sample set is intended to facilitate the comparison of measurements and models from different laboratories and psychophysical exp
We present a novel algorithm to evaluate and render Loop subdivision surfaces The algorithm exploits the fact that Loop subdivision surfaces are piecewise polynomial and uses the forward difference technique for efficiently computing uniform samples on the limit surface The main advantage of our algorithm is that it only requires a small and constant amoun
Environment maps are widely used for approximating reflections in hardware-accelerated rendering applications Unfortunately, the parameterizations for environment maps used in today s graphics hardware severely undersample certain directions, and can thus not be used from multiple viewing directions Other parameterizations exist, but require operations tha
2D scene image-based 3D scene retrieval is a new research topic in the field of 3D object retrieval Given a 2D scene image, it is to search for relevant 3D scenes from a dataset It has an intuitive and convenient framework which allows users to learn, search, and utilize the retrieved results for vast related applications, such as automatic 3D content gene
Sketch-based 3D model retrieval has the intuitiveness advantage over other types of retrieval schemes Currently, there is a lot of research in sketch-based 3D model retrieval, which usually targets the problem of retrieving a list of candidate 3D models using a single sketch as input 2D scene sketch-based 3D scene retrieval is a brand new research topic in
Visualisation courses can often be found as part of a computer science curriculum These basic or advanced level courses are often taught in terms of information visualisation, scientific visualisation or a combination of both Other visualisation courses focus more on visual aesthetics This paper presents and discusses a visualisation course curriculum whi
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A Visualisation Course in a Game Development Curri
In criminal intelligence analysis to complement the information entailed and to enhance transparency of the operations, it demands logs of the individual processing activities within an automated processing system Management and tracing of such security sensitive analytical information flow originated from tightly coupled visualizations into visual analytic
In criminal intelligence analysis to complement the information entailed and to enhance transparency of the operations, it demands logs of the individual processing activities within an automated processing system Management and tracing of such security sensitive analytical information flow originated from tightly coupled visualizations into visual analytic
Uncertainty in visualization is an inevitable issue for sensemaking in criminal intelligence Accuracy and precision of adopted visualization techniques have got greater role in trustworthiness with the system while finding out insights from crime related dataset In this paper, we have presented a case study to introduce concepts of uncertainty and provenan
