Download Advances in Materials Science by Edited by Tianharry Chang PDF

By Edited by Tianharry Chang

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S. Wang, Research and Realization of Ship Course Autopilot Based on Auto Disturbance Rejection Controller, Shandong University, p:53, (2009). [9] W. F. 37-40,(2009). cn Keywords: Diarylethene, Different substituents, Photochromism, Optical Recording. Abstract. A new photochromic compound 1-(2,5-dimethyl-3-thienyl)-2-(2-methyl-5-(1-formyl-2methoxyl-5-phenyl)-3-thienyl)perfluorocyclopentene (1a) was synthesized, its photochromic properties were examined, the result indicated that the color of the compound 1a changed from colorless to a purple one upon irradiation with 297 nm UV light, a new absorption maxima were observed at 542 and 557 nm in hexane and PMMA film, respectively.

J. M. H. Kim, J. Y. Kim: J. Photochem. , C. Vol. (2009), P. 111. [5] N. Tagawa, A. Masuhara, H. Kasai, H. Nakanishi and H. Oikawa: Cryst. Growth Des. Vol. 10( 2010), p. 2857. [6] M. Akita: Organomet. Vol. 30 (2011), p. 43. [7] T. L. Serpentini, C. C. Micheau and T. Kawai: Dyes Pigm. Vol. 89 (2011), p. 271. R. M. J. Y. Ma: Dyes Pigm. Vol. 86 (2010), p. 74. [9] A. El Yahyaoui, G. Fèlix, A. Heynderickx, C. Moustrou and A. Samat: Tetrahedron Vol. 63 (2007), p. 9482. [10] H. Wang: Chem. , 2007, p. 781.

Abstract. YCbCr color space is widely used in skin detection. An improved method is brought up in this paper: a method based on irregular polygon area boundary constraint on YCbCr color space. Experiments shows that this method get more accurate distribution of skin color in YCbCr color space and lower the false detection rate while keeps the precision rate. In consideration of that the value of pix on image is not the real pix in real life, an improved reverse Gamma correction is brought up for solve a problem in reverse Gamma correction.

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