Zeki Melek, David Mayerich, Cem Yuksel, John Keyser
Thread-like structures are becoming more common in modern volumetric data sets as our ability to image vascular and neural tissue at higher resolutions improves. The thread-like structures of neurons and micro-vessels pose a unique problem in visualization since they tend to be densely packed in small volumes of tissue. This makes it difficult for an […]
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Pierre-Frederic Villard, Gabriel Fournier, Michael Beuve, Behzad Shariat
Radiation therapy of cancer necessitates accurate tumour targeting. Unfortunately, during the treatment the tumour and the related organs can undergo large displacement and deformation. Physicians need an estimation of these movements, for an adapted therapy. In this paper, we propose a methodology to provide physicians with reconstructed 4D (3D+time) CT scans, considered as essential data. […]
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Specifications GPU NV43 Stream Processing Units 3 Core Clock 300 MHz Memory Clock 500 MHz Effective Memory Clock 1000 MHz Memory Type DDR Amount of memory 256/512 MB Memory Bandwidth 8.8 GB/sec Buswidth 128 bit Tech process 110 nm Interface PCIe x16/AGP 8X PS/VS version 3.0/3.0 DirectX compliance 9.0c Retail Cards Based On This Board […]
Hongqian Chen, Tianyu Huang, Fengxia Li, Shouyi Zhan
This paper proposes a novel hardware-accelerating deformation algorithm based on curve-skeleton model for 2D shape manipulation. The deformation algorithm can achieve real-time interactive shape manipulation without any pre-computing step. The deforming regions of shapes are demarcated with a simple skeleton frame and are simulated by a curve-skeleton model consisting of triangle-strips. The algorithm obtains two […]
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Baoquan Liu, Enhua Wu, Xuehui Liu
In this paper, a new technique is presented for interactive rendering of caustics fully processed on GPU. Without any pre-computation required, the algorithm can directly render refractive caustics from complex deformable transparent objects onto an opaque receiver surface. By the technique we accurately trace the path of the photons and calculate the energy carried by […]
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Golam Ashraf and Junyu Zhou
Real time rendering of animated crowds has many practical multimedia applications. The Graphics Processor Unit (GPU) is being increasingly employed to accelerate associated rendering and deformation calculations. This paper explores skeletal deformation calculations on the GPU for crowds of articulated figures. It compares a few strategies for efficient reuse of such calculations on clones. We […]
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Kai Xie, Jie Yang, Y. M. Zhu
In medical area, interactive three-dimensional volume visualization of large volume datasets is a challenging task. One of the major challenges in graphics processing unit (GPU)-based volume rendering algorithms is the limited size of texture memory imposed by current GPU architecture. We attempt to overcome this limitation by rendering only visible parts of large CT datasets. […]

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