Beautifying handwriting characters based on the optimization of strokes and structure

本文提出了一种基于在线手写输入的字形美化方法.首先给定手写体的笔画和拓扑结构的形式化描述;然后借助拓扑结构和笔画的稳定性计算,采用类似轮盘赌的方; 法从用户手写样本中得到最佳的拓扑结构和笔画集,并分别对输入汉字的空间布局和各个笔画进行美化;最后通过分析书法理论中\笔断意连"的几种常见模式,确; 定需要笔断意连的笔画,实现笔画之间的呼应关系优化,从而得到符合书法审美要求的字形.In this paper, we propose a method for beautifying online handwriting; characters. First, we introduce a formalization description of the; handwritings topological structure and strokes. Then, in order to; beautify the spatial arrangement and strokes of the input character, we; capture the writers stability factors for the topology and strokes of; their handwriting, and select a suitable topological structure and; strokes from users handwritten samples, using the roulette wheel method.; In addition, we analyze certain classical stroke connection types as; described in calligraphy theory, and determine which strokes need to; consider visual effects. Finally, we apply curve fitting to optimize the; stroke relations in order to generate a final result that meets the; calligraphy aesthetics requirements.国家自然科学基

Primary Research on Empirical Aesthetics and Neural Mechanism of Calligraphy Aesthetics

本报告从认知心理学和认知神经科学的角度，阐述了审美的认知科学基础及其实证研究方法。分析了从费希纳建立实验美学，到后来心理学的诸多流派对美学作出的阐释。神经美学无疑是美学大家族中最年轻的一员，报告回顾总结了这一新的研究领域。报告最后两章以中国书法为研究对象，探讨书法训练对人注意保持能力的影响及书法审美的神经机制。全文共分6章： 第1章讨论了审美的定义，并回顾了实验美学诞生的背景，描述了心理学的各流派对审美体验的心理过程分析和探讨。 第2章阐述了美学的实证研究方法，包括实验心理学、事件相关脑电位，以及功能磁共振成像等方法。 第3章着重回顾审美偏好的早期研究工作，包括从费希纳至Eysenck的...From the viewpoint of cognitive psychology and cognitive neuroscience, this report presents aesthetics based on cognitive science and empirical methods. Since Fechner created the field of empirical aesthetics in nineteen seventies, subsequent psychologists given their own interpretation on aesthetics. As a newly born baby in the family of aesthetics, Neuroaesthetics has gradually become the focus ...学位：博士后院系专业：数学科学学院数学与应用数学系_人工智能基础学号：BHBG2005

数字书法研究综述

数字书法将传统书法的创作工具、视觉艺术效果、书写技巧和创作等用数字化的方式再现.本文首先在回顾数字书法研究历史和研究特点的基础上,给出数字书法的主要研究内容和研究方向,包括:书法工具的数字化建模、书法图像的分析与处理、书法字形的合成与美化等;然后阐述数字书法每一类问题的具体研究目标、研究现状和研究趋势;最后,探讨数字书法进一步发展需要予以关注的重要问题和研究方向.国家自然科学基金(批准号:61772440);;航空科学基金(批准号:20165168007)资助项

融合主题和视觉特征的图片拼贴画合成方法

为辅助设计师进行图片拼贴画艺术创作,提出一种融合主题和视觉特征的图片拼贴画合成方法.给定容器图片和素材图片集,将容器图片划分为若干子区域;并使用圆填充算法及Delaunay三角剖分算法生成子区域的Voronoi图,得到补丁集;之后,计算主题-颜色相似性矩阵,进行素材图片与补丁之间的映射;最后,使用颜色线性融合方法进一步优化拼贴画视觉效果.在保留图片视觉特征的同时,该方法亦能保证容器和素材之间具有相似的主题信息.与市面流行拼贴画制作软件的对比实验表明,该方法合成的图片拼贴画能取得更好的视觉效果,在数字媒体和装饰领域中均有着潜在的应用价值.国家自然科学基金(61772440);;\n光电控制技术重点实验室和航空科学基金联合资助项目(20165168007);;\n浙江大学CAD&CG国家重点实验室开放课题(A1706

书法临摹过程的交互式动画建模方法

为了从书法汉字图像重建其动态笔画书写过程,提出一种书法临摹过程的交互式动画建模方法.首先收集几种典型的真实笔触样本,通过统计建模的方法构建一个新的毛笔笔触模型;然后借助数位板,通过书法图像交互获得汉字的笔锋运动轨迹;再结合书法经验知识计算每个笔锋轨迹点的笔触形状,得到笔触变化的时间序列,生成汉字书写动画.实验结果表明,该方法适合不同字体风格汉字的书写动画生成,能广泛地应用于涉及汉字书写动画制作的影视传媒等数字媒体应用领域.国家自然科学基金(60903129);数字出版技术国家重点实验室开放课

结合网格保刚性的多目的地地图布局优化方法

针对当前多目的地地图生成方法存在布局优化和时间复杂度过高的问题,提出了一种基于保刚性变形的多目的地地图自动生成方法.首先用户选择感兴趣的多个目的地,系统自动选择出与用户指定的目的地最相关的道路网信息,生成上下文区域和关注区域的Delaunay三角网格;然后通过对关注区域凸包点的操作来调整道路细节信息的显示比例,并于每一次凸包点调整后在上下文区域的三角网格作保刚性处理,使得该区域的道路拓扑结构尽量保持不变;同时保证该区域路网的细节清晰地显示.在若干OpenStreetMap地图上的实验结果表明,该方法能快速生成多目的地地图,生成的地图在保持输入地图总体拓扑结构的同时,也优化了地图上目的地区域道路的布局;使得用户可以在有限显示空间内能够浏览地图的全局信息和详细的局部地图信息.国家自然科学基金(61772440,61728206);;光电控制技术重点实验室和航空科学基金联合资助(20165168007);;浙江大学CAD&CG国家重点实验室开放课题(A1706

Stroke Pattern Synthesis Based on Local and Global Features

为了以用户绘制的小块图案为样本,合成在视觉感受上与样本相近的大面积的新图案,提出一种结合局部和整体特征的手绘图案合成方法.首先提取样本中具有独立视觉意义的图案元素,然后分析图案样本的局部和整体特征,最后使用样本中的图案元素,并以这些特征作为参数来生成新的图案.实验结果表明,该方法所合成的图案在继承样本风格的同时,又不是样本图案的简单重复.与相关方法相比,文中方法较好地解决了手绘图案合成中仅考虑局部或整体特征的问题.In this paper,a new method for the synthesis of stroke patterns is proposed,which considers both local and global features of an input stoke pattern.The proposed method takes a small pattern sketched by the user as an input sample.First the representative elements in the pattern image are extracted from the sample and clustered into classes.Then the local and global features of the sample are analyzed.Finally the clustered elements extracted from the sample are arranged based on these features to form large patterns perceptually similar to the input small sample.The experimental results show that the patterns synthesized by the proposed method inherit the style of the input sample and do not simply repeat the small sample.Compared with the related methods,the proposed method well solves the problem by utilizing both local or global features in the synthesis of stroke patterns.国家自然科学基金(60903129;60975076);福建省自然科学基金(F0910149

Synthesizing multi-destinations map with factor graph

目的提出一种结合因子图的多目的地地图生成方法。方法首先,由用户选择多个感兴趣的目的地,系统根据相应规则自动地选择与目的地最相关的路线。然后,通过定义一组衡量布局质量的约束规则,采用因子图方法将定义的每条规则编码成因子,并采用METrOPOlIS HASTIngS算法对由因子图构建得到的目标分布函数进行采样得到符合约束规则的多目的地地图。结果实验结果表明,使用这种方法得到的多目的地地图,可以在同一显示空间中显示多个目的地之间的道路信息,同时又保留了各目的地区域之间的拓扑和空间关系。结论提出的多目的地地图能有效地为用户提供导航,解决了当前在线地图无法在同一视野中为用户提供空间距离较远的区域道路信息的问题。Objective An increasing number of people usually need to work or take a holiday with their families in another city.Therefore,having an accurate map is necessary when they arrive in an unfamiliar city.Some online maps,such as Baidu or Google,can provide sufficient but redundant information.Users only need some information about their destinations,but excessive details on other places give rise to difficulty in reading maps.Meanwhile,users often need to perform many tedious operations,such as zoom in and zoom out,to obtain useful information.Therefore,we present a factor graphbased method to generate multiple destinations maps.This method can provide users with only useful information so that they can obtain help easily.Method Our method consists of three steps.First,users select multiple destinations of interest.The detail of some areas that are far from the user destinations is unnecessary.Second,the proposed system automatically selects the most relevant subset of roads that are related to the destinations according to certain predefined guidelines.These guidelines ensure that the selected road network maintains conciseness and connectivity so that users can arrive at any destination.Finally,the layout is adjusted to present an accurate map.The map should ensure that the details of the information on the destinations are clear while maintaining the original topology of the map.Moreover,we should maximize screen usage to display more information.Thus,we identify a set of design rules to constrain the map layout.We conductsome preprocessing of the road network to implement layout optimization.We segment the road network into several rectangular areas according to the user destinations.Every rectangle contains only one destination.During optimization,we can choose a rectangular area-based perturbation or point-based perturbation.Furthermore,we use factor graph,a type of graphical model,to improve algorithm efficiency by encoding constraints as factors.We obtain the desired map layout with the Metropolis-Hastings algorithm by sampling from the target distribution constructed by the factor graph.Result Online maps fail to provide selective information,whereas other maps,such as hand-drawn maps,often produce map deformation that affects map reading.The multi-destination maps generated by the proposed method not only provide users with detailed road information of multiple destinations in the same view while maintaining the topology among destinations.Moreover,unnecessary information is automatically omitted.Conclusion In this study,we present a new method to generate maps with a factor graph.The factor graph can clearly describe the relationships of objects.Experiment results indicate that the proposed approach can efficiently solve the problem confronting online maps,which fail to provide users with sufficient and detailed information on multi-destinations in the same view.国家自然科学基金项目(60903129); 国家重点基础研究发展规划(973)基金项目(2013CB329502

魯迅《自題小像》詩生成考

ArticleHumanities_Social 4: 107-127(2011)departmental bulletin pape

Lesions to the Orbitofrontal Cortex Produce the Novelty-Seeking Behavior Deficits in Rats

利用旷场测试和y-迷宫测试两种行为模型检测了双侧眶额叶(OrbITOfrOnTAl COrTEX,OfC)电损伤或假损伤雄性Sd大鼠的新异性探索行为,探讨了OfC在大鼠探索新异环境中的作用。旷场测试的结果发现,OfC损伤大鼠的行走距离和直立次数较假损组有明显降低;同时,在y-迷宫测试中与假损伤组大鼠相比,OfC损伤大鼠在新异臂的访问时间和穿梭次数明显降低。提示眶额叶皮质在大鼠新异性探索行为中起着重要作用。We examined the role of the orbitofrontal cortex (ofC) on exploration of the novel environment using theopen-field and Y-maze behavioral paradigms to assess the novelty-seeking behavior of the male Sprague-Dawley ratsafter receiving bilateral electrolytic lesions of the ofC or sham lesions .In the open-field task, the rats with ofC lesionsexhibited reduced average ambulation distance and average rearing number when compared with the animals with shamlesions.Moreover, rats with ofC lesions showed less duration of visits and number of entries in the novel arm in theY-maze task than the control animals.The current findings suggest that the ofC plays an important role on thenovelty-seeking behavior in rats.国家自然科学基金项目(30470553和30770700);CASC项目(KSCX1-YW-R-33;YZ200737