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The main contribution of this paper is to present an efficient parallel sorting "psort" compatible with the standard qsort. Our parallel sorting "psort" is implemented such that its interface is compatible with "qsort" in C Standard Library. Therefore, any application program that uses standard "qsort" can be accelerated by simply replacing "qsort"...
Finding a vast array of applications, the problem of computing the convex hull of a set of sorted points in the plane is one of the fundamental tasks in pattern recognition, morphology and image processing. The main contribution of this paper is to show a simple parallel algorithm for computing the convex hull of a set of n sorted points in the plane and evaluate the performance on the dual quad-core...
Consider the following operation on an arbitrary positive number: if the number is even, divide it by two, and if the number is odd, triple it and add one. The Collatz conjecture assert that, starting from any positive number n, repeated iteration of the operations eventually produces the value 1. The main contribution of this paper is to present hardware-software cooperative approach to verify the...
The control system security is discussed while observing the trend of shifting to open system technologies. Open system is easier for attackers to exploit and appropriate security measures have to be implemented in order to protect a business operation carried out with it.
The dependence of X-ray intensity on the pressure and type of ambient gas was investigated for LiNbO3 single crystals polarized in the c-axis direction at pressures of approximately 1 to 30 Pa. Ionization of surrounding gas molecules by the electric field generated by the crystal led to the production of both positive ions and free electrons. The electrons were accelerated toward a Cu target, radiating...
This paper presents a novel scheme of a recoverable image processing for privacy protection in real-time video surveillance system. The privacy information is embedded into the video using information hiding. Thus, the original privacy information can be recoverable with secrete key if necessary. In the proposed system, the privacy information is defined as information of objects that consist of detailed...
This paper proposes an integrated system of multiple speech recognition modules in order to improve recognition rate. This algorithm integrates recognition result from multiple, homogenous speech recognition modules, each of which is located in different position. The recognition rate of the module at each position is measured in advance, based on which the recognition results of multiple modules...
A 125 MHz 1 GIPS at 1.3 V 1 W microprocessor with single-chip tightly-coupled multiprocessor architecture and low-voltage circuits is targeted to high-performance and low-power embedded systems, especially smart information terminals. This paper shows an entire chip diagram integrating four tightly-coupled processors. Each processing element (PE) is in-order two-way issue superscalar with two ALU...
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