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13篇 您的检索式:作者名="MARTIN Ralph R."
    题名 作者 年代 出处 被引量
1Static Scene Illumination Estimation from Videos with Applications显示文摘我们在场自动地从一个录像恢复景色几何学和照明的一个系统,为各种各样的应用提供一个基础。基于的照明评价方法要求的以前的图象在一个数据库形式的用户相互作用或外部信息。我们为起始的景色重建采用 structure-from-motion 和多看法立体声,然后估计环境球形的泛音代表的地图(同样这些比的更好表现另外的底) 。我们也表明编辑利用恢复几何学和照明的应用的几个录像,包括反对插入(例如,为扩充现实) ,阴影察觉,和录像 relighting。Bin Liu Nun Xu Ralph R. Martin 2017Journal of Computer Science & Technology2017,32,3:6
2Improving Shape from Shading with Interactive Tabu Search显示文摘优化从 shading (SFS ) 的基于的形状对初始化敏感:在初始化的错误是差的全面形状重建的一个重要原因。在这份报纸,我们在场帮助借助于用户相互作用克服这个问题的一个方法。在我们的方法有二个关键元素。第一,我们扩大 SFS 考虑一套初始化,而非使用单个的。第二,我们高效地用一个启发式的搜索方法探索这个初始化空格,禁忌搜索,由重建质量的用户评估指导了。合成、真实的图象上的重建结果在提供更理想的形状重建表明我们的方法的有效性。Jing Wu Paul L. Rosin Xianfang Sun Ralph R. Martin 2016Journal of Computer Science & Technology2016,31,3:3
3Expressive line drawings of human faces from range images显示文摘We propose a novel technique to extract features from a range image and use them to produce a 3D pen-and-ink style portrait similar to a traditional artistic drawing. Unlike most previous template-based,component-based or example-based face sketching methods,which work from a frontal photograph as input,our system uses a range image as input. Our method runs in real-time for models of moderate complexity,allowing the pose and drawing style to be modified interactively. Portrait drawing in our system makes use of occluding contours and suggestive contours as the most important shape cues. However,current 3D feature line detection methods require a smooth mesh and cannot be reliably applied directly to noisy range images. We thus present an improved silhouette line detection algorithm. Feature edges related to the significant parts of a face are extracted from the range image,connected,and smoothed,allowing us to construct chains of line paths which can then be rendered as desired. We also incorporate various portrait-drawing principles to provide several simple yet effective non-photorealistic portrait renderers such as a pen-and-ink shader,a hatch shader and a sketch shader. These are able to generate various life-like impressions in different styles from a user-chosen viewpoint. To obtain satisfactory results,we refine rendered output by smoothing changes in line thickness and opacity. We are careful to provide appropriate visual cues to enhance the viewer’s comprehension of the human face. Our experimental results demonstrate the robustness and effectiveness of our approach,and further suggest that our approach can be extended to other 3D geometric objects.HUANG YueZhu MARTIN Ralph R. ROSIN Paul L. MENG XiangXu YANG ChengLei 2009Science in China(Series F)2009,52,2:2
4Region-based bas-relief generation from a single image显示文摘Qiong Zeng Ralph R. Martin Lu Wang Jonathan A. Quinn Yuhong Sun Changhe Tu 2013Graphical Models2013,,:1
5Differentially expressed genes in pancreatic ductal adenocarcinomas identified through serial analysis of gene expression显示文摘Steven R. Hustinx Dengfeng Cao Anirban Maitra Norihiro Sato Sean Martin D. Sudhir Christine Iacobuzio-Donahue John L. Cameron Charles J. Yeo Scott E. Kern Michael Goggins Jan Mollenhauer Akhilesh Pandey Ralph H. Hruban 2004Cancer Biology & Therapy2004,,:1
6Impact of Renal Denervation on 24-hour Ambulatory Blood Pressure: Results from SYMPLICITY HTN-3显示文摘George L. Bakris Raymond R. Townsend Minglei Liu Sidney A. Cohen Ralph D’Agostino John M. Flack David E. Kandzari Barry T. Katzen Martin B. Leon Laura Mauri Manuela Negoita William W. O’Neill Suzanne Oparil Krishna Rocha-Singh Deepak L. Bhatt 2014Journal of the American College of Cardiology2014,,:1
7Video completion using tracking and fragment merging显示文摘Yun-Tao Jia Shi-Min Hu Ralph R. Martin 2005The Visual Computer (-)2005,,8:1
8Using retinex for point selection in 3D shape registration显示文摘Yonghuai Liu Ralph R. Martin Luigi de Dominicis Baihua Li 2014Pattern Recognition2014,,6:1
9Role of the Ca2+-activated Cl- channels bestrophin and anoctamin in epithelial cells显示文摘Karl Kunzelmann Patthara Kongsuphol Krongkarn Chootip Caio Toledo Joana R. Martins Joana Almaca Yuemin Tian Ralph Witzgall Jiraporn Ousingsawat Rainer Schreiber 2011Biological Chemistry . 2011 (1-2)2011,,:1
10New advances in visual computing for intelligent processing of visual media and augmented reality显示文摘Visual imagery constitutes the most important sensory information for humans.The entire field of acquiring,analyzing and synthesizing visual data by means of computers is called visual computing.It has an extraordinarily wide range of applications,including for example:industrial quality control,street view and driver assistance systems,robot navigation,multimedia systems,and computer games.WANG JuHong ZHANG SongHai MARTIN Ralph R. 2015Science China(Technological Sciences)2015,58,12:0
11Preface显示文摘Shi-Min Hu (1) Li-Gang Liu (2) Ralph R. Martin (3) 2016Journal of Computer Science & Technology2016,31,3:0
12Preface显示文摘With the rapid development of various technologies from the Internet to mobile phones and cameras, visual data is now widely available in huge quantity and great variety, bringing significant opportunities for novelRalph R. Martin 2012Journal of Computer Science & Technology2012,27,6:0
13Harmonic Field Based Volume Model Construction from Triangle Soup显示文摘Surface triangle meshes and volume data are two commonly used representations of digital geometry. Converting from triangle meshes to volume data is challenging, since triangle meshes often contain defects such as small holes, internal structures, or self-intersections. In the extreme case, we may be simply presented with a set of arbitrarily connected triangles, a 'triangle soup'. This paper presents a novel method to generate volume data represented as an octree from a general 3D triangle soup. Our motivation is the Faraday cage from electrostatics. We consider the input triangles as forming an approximately closed Faraday cage, and set its potential to zero. We then introduce a second conductor surrounding it, and give it a higher constant potential. Due to the electrostatic shielding effect, the resulting electric field approximately lies in that part of space outside the shape implicitly determined by the triangle soup. Unlike previous approaches, our method is insensitive to small holes and internal structures, and is observed to generate volumes with low topological complexity. While our approach is somewhat limited in accuracy by the requirement of filling holes, it is still useful, for example, as a preprocessing step for applications such as mesh repair and skeleton extraction.沈超慧 张国鑫 来煜坤 胡事民 Ralph R. Martin 2010Journal of Computer Science & Technology2010,25,3:0
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