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In this paper, we studied the multi-hop broadcast algorithms for delivery of safety message in inter vehicle communication environment. In MANET environment, there are three multi-hop broadcasting schemes such as probability based methods, area based methods and topology based methods. We simulate MANET based multi-hop broadcasting schemes and evaluate the(More)
SUMMARY The RGB signals generated by different cameras are not equal for the same scene. Therefore, cameras are characterized based on a CIE standard colorimetric observer. One method of deriving a colorimetric characterization matrix between camera RGB output signals and CIE XYZ tristimulus values is least squares polynomial modeling. Yet, this involves(More)
SUMMARY The gamma correction for the CMOS image sensors are implemented by the method of piecewise linear approximation through a look-up table. In this paper, we propose a quantitative criterion to select the piece linear segment with the same output interval for the reduction of the error between the value of piece linear approximation and gamma(More)
Generally, white balance of a conventional camera is set by linear adjustment of RGB channel gains. However, spectral sensitivity of human visual tri-receptor, LMS cone, is nonlinearly changed according to surround chromaticity and luminance level. Therefore, the perceived colors of the image reproduced on a standard display using the output signals of a(More)