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In this paper, we used a fisheye lens to acquire the wider rear view camera images. Fisheye lens provided about 170° wide rear view images but the images were distorted because of the characteristics of the lens. In order to compensate this, distorted images were transformed to flat images using a distortion model (FOV). Then, noises of compensated images were removed using filters and the images...
This paper deals with the tilt compensation and resolution compensation as the process for efficient recognizing text information on traffic signs of Korea. OCR(Optical Character Recognition), overall processing process for solving structural limit of Template Matching was suggested, and the compensation on tilt was conducted through Hough line and trigonometry. And, resolution compensation for damaged...
Full-swing voltage-controlled oscillators (VCOs) are very sensitive to supply noises and require supply regulators with increased supply voltages, which may entail more power consumption. Further, in a phase-locked loop (PLL) with a conventional second-order passive-loop filter (PLF), PLL output frequency range is restricted by the compliance range of the charge pump output voltage (VCP) even though...
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