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Vehicle identification is one of the frequently studied problems in video surveillance. Commonly, identifying an unknown vehicle object requires a large amount of training instances. Unfortunately, in the large parking scenario, the cost may be prohibitively expensive because of the finitely waiting time from the car owners. In this paper, we show that it is possible to identify a registered vehicle...
The human-simulated intelligent controller, using a hierarchical and multi-mode control structure, effectively solves the control difficult problems of many complex systems. But there are many parameters to be determined. In order to solve them, the paper introduces an improved genetic algorithm (IGA) which is combined with orthogonal design method. It is served as the simulation experiment platform...
Head-related transfer functions (HRTFs) refer to the spectral filtering from sound sources to listenerspsila eardrums or ear canals. As an effective model structure, the degree of the IIR filter approximation of the HRTFs, whose design and implementation is a specific spectrum function approximation process, is much lower than that of the FIR. Based on the assessment of HRTFs different importance...
Research on the interference within the face aiming at face complexity when locating the face, this paper advances a new algorithm of multiple-step hiding genetic algorithm to locate the face. This algorithm searches for intermediate locating parameters through genetic algorithm and parameterized deformable ellipse template, locates a hiding region based on the parameter and hides this region. On...
A planar metamaterial structure using a single Ag FSS screen sandwiched between layers of polyimide was proposed that is straightforward to fabricate. This structure was optimized by a GA to have a low/zero index of refraction with high transmission in the far-IR. Measured dielectric and metallic properties incorporation into the model provide confidence that the PMM predictions are accurate. Fabrication...
A metallodielectric frequency selective surfaces (FSS) filter was optimized by a genetic algorithm (GA) to have dual stopbands in the mid-IR. Fabrication and measurement of this design demonstrated excellent filter properties with greater than 10 dB attenuation in the stopbands. However, blooming of the metallic patches resulted in a frequency shift in the measured response. Efforts are currently...
A DFSS filter comprised of a-Si blocks on a polyimide substrate was designed to have dual stopbands in the mid-IR. Full-wave simulation of this structure including measured material properties predicts strong polarization independent stopbands at 80 THz and 90 THz for normally incident IR radiation. This design was fabricated using e-beam lithography. Efforts are currently underway to characterize...
In this paper a planar metamaterial platform based on frequency selective surface (FSS) technology is presented along with a design methodology for realizing low loss negative index metamaterials (NIM). FSSs are periodic metallic screens supported by dielectric substrates and/or superstrates. Although they naturally act as electromagnetic filters, FSSs have also been used extensively as metamaterials...
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