high performance computing on graphics processing units: hgpu.org

Motion estimation plays an important role in many applications. A shared-memory-optimized implementation of motion estimation is studied in this work, where bank conflict is minimized and bank occupancy is maximized. Experimental results shows that at most 38 times speedup can be achieved compared with a 3 GHz CPU. Moreover, based on the optimization technique, a […]

The optimization for graphics rendering is important in VR applications. Many researchers have put a variety of rendering optimization, but these methods often have the limitations of the environment. Based on existing research works, this paper propose a common large-scale 3D scene rendering optimization method based on three levels of optimization strategies: the scene complexity, […]

We have previously introduced methods for noninvasive estimation of temperature change using diagnostic ultrasound. The basic principle was validated both in vitro and in vivo by several groups worldwide. Some limitations remain, however, that have prevented these methods from being adopted in monitoring and guidance of minimally invasive thermal therapies, e.g., RF ablation and high-intensity-focused […]

Biological neural systems are well known for their robust and power-efficient operation in highly noisy environments. Biological circuits are made up of low-precision, unreliable and massively parallel neural elements with highly reconfigurable and plastic connections. Two of the most interesting properties of the neural systems are its self-organizing capabilities and its template architecture. Recent research […]

We present a non-photo realistic, real-time painterly rendering technique for terrains. The painterly appearance and the impression of terrains is created by effectively rendering several brush strokes. The strokes have fixed locations on the surfaces of the terrain during animation to enable frame to frame coherency. The strokes are rendered as alpha blended sprites in […]

Advanced Encryption Standard’s performance is changing depending on the platform it is run. In doing these benchmarks, we observed the behavior of AES algorithm on several programming environments, on different operating systems and on various computational platforms concluding that not all of them offer the same performance. We noticed, in doing these tests, that the […]

Pattern Recognition (PR) tasks are natural candidates for embedded systems, since they usually interact with humans and other complex processes in the real world. Often regarded as the part of Artificial Intelligence (AI) closer to perception, a typical PR application reacts to external events that the system perceives through physical sensors or input devices and […]

Seismic horizons indicate change in rock properties and are central in geoscience interpretation. Traditional interpretation systems involve time consuming and repetitive manual volumetric seeding for horizon growing. We present a novel system for rapidly interpreting and visualizing seismic volumetric data. First we extract horizon surface-parts by preprocessing the seismic data. Then during interaction the user […]

This paper presents a graphics processing unit with energy-saving techniques. Several techniques and architectures are proposed to achieve high performance with low power consumption. First of all, low power core pipeline is designed with 2-issue VLIW architecture to reduce power consumption while achieving the processing capability of 400MFLOPS or 800MOPS. In addition, inter/intra adaptive mutli-threading […]

Speaker recognition systems classify a test signal as a speaker or an imposter by evaluating a matching score between input and reference signals. We propose a new information theoretic approach for computation of the matching score using the Renyi entropy. The proposed entropic distance, the Kernelized Renyi distance (KRD), is formulated in a non-parametric way […]

In this paper we consider a multiresolution filter and its realization on the Cell BE and GPUs. We not only present common and specific optimization strategies undertaken for obtaining maximum performance on these architectures, but also how to obtain a speedup of 6.57x and 33.24x compared to an optimized OpenMP baseline implementation. Furthermore, we also […]

Orthopedic surgery treats the musculoskeletal system, in which bleeding is common and can be fatal. To help train future surgeons in this complex practice, researchers designed and implemented a serious game for learning orthopedic surgery. The game focuses on teaching trainees blood management skills, which are critical for safe operations. Using state-of-the-art graphics technologies, the […]