Posts
Jun, 27
A High Performance Massively Parallel Approach for Real Time Deformable Body Physics Simulation
Single processor technology has been evolving across last decades, but due to physical limitations of chip manufacturing process, the industry is pursuing alternatives to sustain computational power growth,including the creation of multi-core systems. Parallel computing targets problems that are scalable and possibly distributed, dividing the problem into smaller pieces. This approach may be explored to […]
Jun, 27
Looking at the surprise: Bottom-up attentional control of an active camera system
Inspired by the expectation-based perception of humans, a surprise-driven active vision system is proposed. This vision system not only considers spatial saliency of objects in the environment, but also investigates temporal novelty in the neighborhood. Surprise is defined as the difference of the saliency probability distributions of two consecutive input images, which is measured using […]
Jun, 27
Real-Time Simulation of Granular Materials Using Graphics Hardware
We present a method to compute friction in a particle-based simulation of granular materials on GPUs and its data structure. We use Distinct Element Method to compute the force between particles. There has been a method to accelerate Distinct Element Method using GPUs, but the method does not compute friction. We implemented friction into the […]
Jun, 27
Generating and Rendering Procedural Clouds in Real Time on Programmable 3D Graphics Hardware
This paper discusses a process of generating and rendering procedural clouds for 3D environments using programmable 3D graphics hardware. Cloud texture generation is performed using Perlin noise and turbulence functions. Our implementation is done in OpenGL supported GPUs with programmable vertex & fragment processing pipeline that supports OpenGL shading language (GLSL). We have performed a […]
Jun, 27
High Quality Interactive Rendering of Massive Point Models Using Multi-way kd-Trees
We present a simple and efficient technique for out-of-core multi resolution construction and high quality visualization of large point datasets. The method introduces a novel hierarchical LOD data organization based on multi-way kd-trees that simplifies memory management and allows controlling the LOD tree’s height. The technique is incorporated in a full end-to-end system, which is […]
Jun, 27
Rapid Texture-based Volume Rendering
Nowadays, man can get a great number of 3D data sets from different sources is common in medical diagnosis but how to explore the information contents of these data sets is still a problem. One effective method is with computer aid rendering the volume. As the 3D datasets are usually in large scalar, the capability […]
Jun, 27
Voreen: A Rapid-Prototyping Environment for Ray-Casting-Based Volume Visualizations
By splitting a complex ray-casting process into different tasks performed on different processors, Voreen provides a lot of flexibility because users can intervene at different points during ray casting. Voreen’s object-oriented design lets users easily create customized processor classes that cooperate seamlessly with existing classes. A user-friendly GUI supports rapid prototyping of visualization ideas. We’ve […]
Jun, 27
Uncluttering Graph Layouts Using Anisotropic Diffusion and Mass Transport
Many graph layouts include very dense areas, making the layout difficult to understand. In this paper, we propose a technique for modifying an existing layout in order to reduce the clutter in dense areas. A physically inspired evolution process based on a modified heat equation is used to create an improved layout density image, making […]
Jun, 27
Accelerating Smith-Waterman Local Sequence Alignment on GPU Cluster
With a high accuracy, the Smith-Waterman local sequence alignment algorithm requires a very large amount of memory and computation, making implementations on common computing systems become less practical. In this paper, we present swGPUCluster – an implementation of the SmithWaterman algorithm on a cluster equipped with NVIDIA GPU graphics cards (called a GPU cluster). Our […]
Jun, 27
Efficient implementation of the overlap operator on multi-GPUs
Lattice QCD calculations were one of the first applications to show the potential of GPUs in the area of high performance computing. Our interest is to find ways to effectively use GPUs for lattice calculations using the overlap operator. The large memory footprint of these codes requires the use of multiple GPUs in parallel. In […]
Jun, 26
Scientific and Engineering Computing Using ATI Stream Technology
This continuing exploration of GPU technology examines ATI Stream technology and its use in scientific and engineering applications.
Jun, 26
Improving processing time for visual measurements of displacements of IPMC actuators using CUDA
A Graphics Processing Unit (GPU) based measuring system which is used for processing images from a camera to provide information about displacement is presented in this work. The proposed approach has been developed for measuring small movements of micro robotic systems based on synthetic IPMC (Ionic Polymer Metal Composites) materials using CUDA (Compute Unified Device […]
