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显色性、色温和白平衡理论及其应用研究 总被引:1,自引:0,他引:1
谢铄 《浙江教育学院学报》2004,(1):56-60
分析了显色性、色温和白平衡理论及在电视摄像实践中的应用,对应用中存在的问题,进行了定量或定性的探讨. 相似文献
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一个图G的全染色被称为邻点可区别的如果满足图G中任意两个相邻点所关联的元素所染的色的集合不同.一个图的邻点可区别的全染色被称为均匀的如果满足任意两色所染元素的数目之差的绝对值不超过1.本文研究了联图P_n∨C_n的邻点可区别的均匀全染色并证明它满足邻点可区别的均匀全染色猜想. 相似文献
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生物芯片技术和DNA计算分别是近几年来生命科学与信息科学的新兴研究领域,DNA计算在求解NP问题上存在着硅计算无法比拟的先天优越性。而图的最小顶点覆盖问题是图论中的一个重要问题,目前还没有好的算法。在DNA计算和DNA计算芯片的基础上,采用分子信标编码策略,利用观察荧光来确定图的最小顶点覆盖问题的可行解。利用分子信标模型来解决图的最小顶点覆盖M题,和其它DNA计算方法相比,该方法操作起来更加方便。 相似文献
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Martin J. Attrill Karen A. Gresty Russell A. Hill Robert A. Barton 《Journal of sports sciences》2013,31(6):577-582
Abstract The colour of sportswear has been shown to influence the outcome of bouts for several different combat sports. The generality of these effects, and whether they extend to collaborative forms of contests (team sports), is uncertain. Since 1947, English football teams wearing red shirts have been champions more often than expected on the basis of the proportion of clubs playing in red. To investigate whether this indicates an enhancement of long-term performance in red-wearing teams, we analysed the relative league positions of teams wearing different hues. Across all league divisions, red teams had the best home record, with significant differences in both percentage of maximum points achieved and mean position in the home league table. The effects were not due simply to a difference between teams playing in a colour and those playing in a predominantly white uniform, as the latter performed better than teams in yellow hues. No significant differences were found for performance in matches away from home, when teams commonly do not wear their “home” colours. A matched-pairs analysis of red and non-red wearing teams in eight English cities shows significantly better performance of red teams over a 55-year period. These effects on long-term success have consequences for colour selection in team sports, confirm that wearing red enhances performance in a variety of competitive contexts, and provide further impetus for studies of the mechanisms underlying these effects. 相似文献
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Parameterizations that use mesh simplification to build the base domain always adopt the vertex removal scheme. This paper applies edge collapse to constructing the base domain instead. After inducing the parameterization of the original mesh over the base domain, new algorithms map the new vertices in the simplified mesh back to the original one according to the edge transition sequence to integrate the parameterization. We present a direct way, namely edge classification, to deduce the sequence. Experimental results show that the new parameterization features considerable saving in computing complexity and maintains smoothness. 相似文献