By establishing the connection between graph colouring and the solution of some equation systems in finite fields, we obtain some formulas to the number of solutions of some equation systems in finite fields, in terms...By establishing the connection between graph colouring and the solution of some equation systems in finite fields, we obtain some formulas to the number of solutions of some equation systems in finite fields, in terms of chromatic polynomial of a graph.展开更多
A new stereo matching scheme from image pairs based on graph cuts is given,which can solve the problem of large color differences as the result of fusing matching results of graph cuts from different color spaces.This...A new stereo matching scheme from image pairs based on graph cuts is given,which can solve the problem of large color differences as the result of fusing matching results of graph cuts from different color spaces.This scheme builds normalized histogram and reference histogram from matching results,and uses clustering algorithm to process the two histograms.Region histogram statistical method is adopted to retrieve depth data to achieve final matching results.Regular stereo matching library is used to verify this scheme,and experiments reported in this paper support availability of this method for automatic image processing.This scheme renounces the step of manual selection for adaptive color space and can obtain stable matching results.The whole procedure can be executed automatically and improve the integration level of image analysis process.展开更多
鉴于中国南方古稻作梯田作为全球重要农业文化遗产的独特地位及其对生态系统服务、生物多样性保护及农业可持续发展的重要意义,文章采用文献计量分析方法,系统梳理了Web of Science及CNKI数据库中该领域相关的国内外文献,旨在全面评估...鉴于中国南方古稻作梯田作为全球重要农业文化遗产的独特地位及其对生态系统服务、生物多样性保护及农业可持续发展的重要意义,文章采用文献计量分析方法,系统梳理了Web of Science及CNKI数据库中该领域相关的国内外文献,旨在全面评估该领域研究现状并探索其未来发展路径。研究发现:(1)国内在该领域的研究分为初步发展期和快速发展与繁荣期两个阶段,不同时期的研究内容也不相同;国际学术界在该研究领域尚处于逐渐升温的阶段;(2)当前形成的合作群体多以导师与学生之间的紧密合作为主,但各研究力量间的合作尚显不足;(3)该领域的研究内容广泛,涉及自然、社会、经济、文化等多维度,涵盖梯田文化、遗产保护、水稻土等,聚焦于生态系统服务、生物多样性保护、水土保持与农业可持续发展以及梯田撂荒问题等。本研究同时揭示了当前研究存在的空白点,为增强跨学科、跨机构的合作和推动梯田生态、文化及经济的综合可持续发展提供重要的研究依据和策略方向。展开更多
文摘By establishing the connection between graph colouring and the solution of some equation systems in finite fields, we obtain some formulas to the number of solutions of some equation systems in finite fields, in terms of chromatic polynomial of a graph.
基金Sponsored by"985"Second Procession Construction of Ministry of Education(3040012040101)
文摘A new stereo matching scheme from image pairs based on graph cuts is given,which can solve the problem of large color differences as the result of fusing matching results of graph cuts from different color spaces.This scheme builds normalized histogram and reference histogram from matching results,and uses clustering algorithm to process the two histograms.Region histogram statistical method is adopted to retrieve depth data to achieve final matching results.Regular stereo matching library is used to verify this scheme,and experiments reported in this paper support availability of this method for automatic image processing.This scheme renounces the step of manual selection for adaptive color space and can obtain stable matching results.The whole procedure can be executed automatically and improve the integration level of image analysis process.
文摘鉴于中国南方古稻作梯田作为全球重要农业文化遗产的独特地位及其对生态系统服务、生物多样性保护及农业可持续发展的重要意义,文章采用文献计量分析方法,系统梳理了Web of Science及CNKI数据库中该领域相关的国内外文献,旨在全面评估该领域研究现状并探索其未来发展路径。研究发现:(1)国内在该领域的研究分为初步发展期和快速发展与繁荣期两个阶段,不同时期的研究内容也不相同;国际学术界在该研究领域尚处于逐渐升温的阶段;(2)当前形成的合作群体多以导师与学生之间的紧密合作为主,但各研究力量间的合作尚显不足;(3)该领域的研究内容广泛,涉及自然、社会、经济、文化等多维度,涵盖梯田文化、遗产保护、水稻土等,聚焦于生态系统服务、生物多样性保护、水土保持与农业可持续发展以及梯田撂荒问题等。本研究同时揭示了当前研究存在的空白点,为增强跨学科、跨机构的合作和推动梯田生态、文化及经济的综合可持续发展提供重要的研究依据和策略方向。
