WSCG 2015: Full Papers Proceedings Domovská stránka kolekce Zobrazit statistiky

Procházet
Přihlásit se k zasílání denních e-mailů o novinkách RSS Feed RSS Feed RSS Feed
Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 1 až 20 z 30
Kerdvibulvech, Chutisant
Vision and virtual-based human computer interaction applications for a new digital media visualization

With the rise of smartphones and tablets interactively, human computer interaction is a very popular topic for engineers, artists, designers and computer scientists around the world in both industry and academia. This topic was studied and researched over many years ago. Neverthe...

Dave, Jay , Venkatesh, KS , Jain, Garima
Online 3D signature verification by using stereo camera & tablet

The signature of a person is an important biometric attribute which can be used to authenticate human identity. Conventional online approaches to signature verification only use either a single camera to track the pen tip position or a tablet to extract the dynamic features of...

Desprat, Caroline , Luga, Hervé , Jessel, Jean-Pierre
Hybrid client-server and P2P network for web-based collaborative 3D design

Our proposed research project is to enable 3D distributed visualization and manipulation involving collaborative effort through the use of web-based technologies. Our project resulted from a wide collaborative application research fields: Computer Aided Design (CAD), Building Information Modeling (BIM)...

Ehm, Alexander , Ederer, Alexander , Klein, Andreas , Nischwitz, Alfred
Adaptive depth bias for soft shadows

With shadow mapping the need of a suitable biasing technique due to shadow aliasing is indisputable. Dou et al. [Dou14] introduced a biasing technique that computes the optimal bias adaptively for each fragment. In this paper, we propose enhancements for this algorithm. First, we&#...

Lakshmiprabha, N. S. , Santos, Alexander , Beltramello, Olga
An efficient reduction of IMU drift for registration error free augmented reality maintenance application

Augmented reality (AR) is a technology that overlays virtual 3D content in the real world to enhance a user’s perception. This AR virtual content must be registered properly with less jitter, drift or lag to create a more immersive feeling for the user. The object pose&#x...

Jain, Nisha , Kalra, Prem , Subodh, Kumar
Corrosion rendering: fusing simulation and photo-texturing

We present a technique for realistic rendering of corroded objects. We employ a physio-chemically based stochastic model to determine the deterioration level of different points on an object, given its material characteristics and the vigor of the environment. Guided by values from the&...

Liu, Can , Zhang, Weizheng
Robust temporal depth enhancement method for dynamic virtual view synthesis

Depth-image-based rendering (DIBR) is a view synthesis technique that generates virtual views by warping from the reference images based on depth maps. The quality of synthesized views highly depends on the accuracy of depth maps. However, for dynamic scenarios, depth sequences obtained ...

Park, Ki-Yeong , Dong-Seok, Kim
A weight adjustment strategy to prevent cascade of boosted classifiers from overfitting

We propose a weight adjustment strategy to prevent a cascade of boosted classifiers from overfitting and to achieve an improved performance. In cascade learning, overfitting often occurs due to the iterative applications of bootstrapping. Since false positives that the previous classifier mi...

Hartmann, Stefan , Krüger, Björn , Klein, Reinhard
Content-aware re-targeting of discrete element layouts

Example-based modeling is an active line of research within the computer graphics community. With this work we propose a re-targeting scheme for polygonal domains containing a layout composed of discrete elements. Retargeting such domains is typically achieved employing a deformation to the&...

Najman, Pavel , Zahrádka, Jiří , Zemčík, Pavel
Projector-leap motion calibration for gestural interfaces

Calibration of a projector and a tracking device is an essential step for interaction with projected content using gestures. We propose a novel technique for calibration of a data projector and a Leap Motion sensor. Using the proposed approach, users can calibrate the system b...

Kim, Dong-Seok , Park, Ki-Yeong
Pose-specific pedestrian classificatiion using multiple features in par-infrared images

We present a multiple feature-based, pose-specific pedestrian classification approach to improve classification performance for fair-infrared (FIR) images. Using pose-specific classifiers and multiple features has proved to be beneficial in visible-spectrum-based classification systems; therefore, we adapt both to&#...

Steiger, M. , Bernard, J. , Thum, S. , Mittelstädt, S. , Hutter, M. , Keim, D. , Kohlhammer, J.
Explorative analysis of 2D color maps

Color is one of the most important visual variables in information visualization. In many cases, two-dimensional information can be color-coded based on a 2D color map. A variety of color maps as well as a number of quality criteria for the use of color have been pre...

Krolla, Bernd , Stricker, Didier
Heterogeneous dataset acquisition for a continuously expandable benchmark (CEB)

Ongoing research within the field of computer vision yielded a wide range of image based 3D reconstruction approaches. Starting years ago with low resolution RGB images as input, we face today a wide and fast growing range of available imaging devices to perform this task.�...

Hast, Anders , Sablina, Victoria A. , Kylberg, Gustaf , Sintorn, Ida-Maria
A simple and efficient feature descriptor for fast matching

A very simple but efficient feature descriptor is proposed for image matching/registration applications where invariance is not important. The descriptor length is only three times the height of the local region in which the descriptor is calculated, and experiments were conducted to&#x...

V., Afanasyev , A., Ignatenko , A., Voloboy
Simultaneous absorption and environment light reconstruction in optical tomography problem

Classic tomography algorithms applied in optical tomography require the light source pre-calibration and do not allow refining the light map in tomography algorithm. This article shows an approach to environment light reconstruction during the ART algorithm execution. It makes the optical to...

Myllykoski, Mirko , Glowinski, Roland , Kärkkäinen, Tommi , Rossi, Tuomo
A GPU-accelerated augmented Lagrangian based L1-mean curvature Image denoising algorithm implementation

This paper presents a graphics processing unit (GPU) implementation of a recently published augmented Lagrangian based L1-mean curvature image denoising algorithm. The algorithm uses a particular alternating direction method of multipliers to reduce the related saddle-point problem to an iterative...

E. V., Myasnikov
Evaluation of space partitioning data structures for nonlinear mapping

Nonlinear mapping (Sammon mapping) is a nonlinear dimensionality reduction technique operating on the data structure preserving principle. Several possible space partitioning data structures (vp-trees, kd-trees and cluster trees) are applied in the paper to improve the efficiency of the nonlinear ...

Milet, Tomáš , Navrátil, Jan , Zemčík, Pavel
An improved non-orthogonal texture warping for better shadow rendering

In interactive applications, shadows are traditionally rendered using the shadow mapping algorithm. The disadvantage of the algorithm is limited resolution of depth texture which may lead to aliasing artifacts on shadow edges. This paper introduces an improved depth texture warping with non-...

Meng-Hong, Cho , I-Chen, Lin
Image-based object modeling by fitting salient lines and geometric primitives

With modern vision techniques and depth sensing devices, it becomes possible for common users to acquire the shape of an object from a set of color or depth images from different views. However, the estimated 3D volume or point clouds, disturbed by noise and errors, canno...

Boukhalfi, Tarik , Desrosiers, Christian , Paquette, Eric
Machine learning approach to automate facial expressions from physical activity

We propose a novel approach based on machine learning to simulate facial expressions related to physical activity. Because of the various factors they involve, such as psychological and biomechanical, facial expressions are complex to model. While facial performance capture provides t...

Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 1 až 20 z 30