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Pedestrian detection has a wide range of applications in visual surveillance, driver assistance systems. It is also very important in computer vision and pattern recognition. In our study, we proposed a multi-scale scheme for pedestrian detection. The scheme of pedestrian detection consisted of two steps for construction a strong classifier and multi-scale detection. The strong classifier, a collection...
In this paper, broadband sound propagation in shallow water environments is studied. Fourier synthesis method of frequency-domain solutions is selected to do the simulation of time-series. The frequency-domain calculations in Pekeris waveguide are carried out by normal mode model KRAKEN. To improve the computational efficiency, parallel computing of KRAKEN is implemented based on MPI (Message Passing...
Through the analysis of the traditional training course evaluation problems, with multiple intelligence theory as the basis, build the training course comprehensive evaluation system. Calculate each index weight with the analytic hierarchy process (AHP) of the fuzzy mathematics, judge matrix and calculate fuzzy comprehensive evaluation index through the establishment of multi-grade fuzzy comprehensive,...
Theoretical backing of the similarity laws obtained from the dual dimensionless parameters of the bed-form classification diagram is given by solving the equations of similarity conditions that are obtained from the 1-dimensional equation of motion, the continuity equation, the bed deformation equation, and the formula of bed-load transport. Furthermore, a distorted model experiment was conducted...
Based on the programmable gain amplifier chip PGA309's Coarse Offset and zero Adjustment function, a set of algorithms is designed in this paper to implement the measurement system program-controlled hardware zero adjustment without having to manually adjust the multiturn potentionmeters or program-controlled adjust the digital potentionmeters, thus avoiding all kinds of shortcomings which exists...
The paper introduces a kind of infrared temperature sensor having wide measure range and stable readings which is developed based on thermopile detector TPS334 and PGA309. The principle of PGA309 signal amplification, ambient temperature compensation and nonlinearity correction is discussed, and the relevant circuit and compensation algorithm are given. The sensor has accuracy up to 3 Celsius degree...
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