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This paper proposes a two-step prototype-face-based scheme of hallucinating the high-resolution detail of a low-resolution input face image. The proposed scheme is mainly composed of two steps: the global estimation step and the local facial-parts refinement step. In the global estimation step, the initial high-resolution face image is hallucinated via a linear combination of the global prototype...
A small broadband antenna with the vertically polarized, omnidirectional field pattern over 100 - 500 MHz (VSWR<2) is studied. The input impedance of the conical antenna varies with the flare angle, as expected. It is observed that an optimum flare angle exists for 50Omega matched impedance. From the results obtained, it is concluded that improvement in bandwidth can be achieved with the height...
In this paper, a compact-size dual-band antenna comprising of two printed meander-line elements on opposite sides of a substrate is proposed. The antenna is simple, low-cost, and has omnidirectional radiation pattern. This antenna resonates with a length shorter than that of a straight-wire monopole or dipole. Characteristics of the antenna, such as radiation pattern, gain, polarization etc., are...
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