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浏览/检索结果: 共10条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 A computerized facial approximation method for Homo sapiens based on facial soft tissue thickness depths and geometric morphometrics 期刊论文  OAI收割 JOURNAL OF ANATOMY, 2023, 页码: 17 作者:  Shui, Wuyang;  Wu, Xiujie;  Zhou, Mingquan   |  收藏  |  浏览/下载：18/0  |  提交时间：2023/11/02 covariation  craniofacial relationships  facial approximation  geometric morphometrics  soft tissue thickness depths   A computerized facial approximation method for archaic humans based on dense facial soft tissue thickness depths 期刊论文  OAI收割 ARCHAEOLOGICAL AND ANTHROPOLOGICAL SCIENCES, 2021, 卷号: 13, 期号: 11, 页码: 20 作者:     |  收藏  |  浏览/下载：86/0  |  提交时间：2021/11/29 Facial approximation  Archaic humans  Facial soft tissue thickness depths  Geometric correspondences  Assessment   A Connectivity-Aware Approximation Algorithm for Relay Node Placement in Wireless Sensor Networks 期刊论文  OAI收割 IEEE SENSORS JOURNAL, 2016, 卷号: 16, 期号: 2, 页码: 515-528 作者:  Ma CF(马超凡);  Liang W(梁炜);  Zheng M(郑萌);  Sharif, Hamid 收藏  |  浏览/下载：31/0  |  提交时间：2016/07/22 Wireless sensor networks  relay node placement  geometric disc cover  network connectivity  approximation algorithm   Ab initio calculation of the geometries, stabilities, and electronic properties for the bimetallic Be2Au (n) (n=1-9) clusters: comparison with pure gold clusters 期刊论文  OAI收割 Journal of Molecular Modeling, 2012, 卷号: 18, 期号: 1, 页码: 275-283 Y. R. Zhao; X. Y. Kuang; B. B. Zheng; S. J. Wang; Y. F. Li 收藏  |  浏览/下载：21/0  |  提交时间：2013/02/05 Be-Au cluster  Geometric configuration  Density functional method  photoelectron-spectroscopy  exchange-energy  au  anions  ag  cu  approximation  potentials  transition  molecules   Geometric Features Sensitive Mesh Segmentation Orient to Patch-based Fitting 会议论文  OAI收割 Mechanical and Electronics Engineering Iii, Pts 1-5, Stafa-Zurich Zhao Xiang-jun; Lu Mei; Gong Jianhua 收藏  |  浏览/下载：23/0  |  提交时间：2014/12/07 geometric approximation  geometric features sensitive segmentation  T-splines reconstruction  APPROXIMATION   Image compression based on contourlet and no lists SPIHT (EI CONFERENCE) 会议论文  OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China 作者:  Zhang S. 收藏  |  浏览/下载：51/0  |  提交时间：2013/03/25 The volume of raw image data captured by the high resolution camera is extremely huge. Thus the efficient image compression method should be used to decrease the bit rate. The image compression method based on wavelet is used more widely nowadays. However  two dimensional wavelet is only the tensor product of the one dimensional wavelet whose support region of basis function is extended from interval to square. Contourlet is an image multiscale geometric analysis tool  which could represent image sparsely and has strong capability of nonlinear approximation. The basis function of contourlet is multidirectional and anisotropic. Nevertheless  contourlet is redundant. So the non-redundant Wavelet Based Contourlet Transform (WBCT) is used in this paper. The SPIHT algorithm is very efficient way to coding the significant coefficients. And the improved no lists SPIHT is more easy to implemented by hardware. Image compression method based on the combination of both wavelet based contourlet transform and no lists SPIHT coding is proposed in the paper. Experiment shows that compared to wavelet based scheme the contourlet scheme can reserve the texture of the image. For barbara test image when coding at low bit rate the PSNR can improve about 0.2dB. 2010 IEEE.   Animated models coarsening with local area distortion and deformation degree control (EI CONFERENCE) 会议论文  OAI收割 International Conference on Image Processing and Pattern Recognition in Industrial Engineering, August 7, 2010 - August 8, 2010, Xi'an, China 作者:  Zhang S.;  Zhao J. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 In computer graphics applications  mesh coarsening is an important technique to alleviate the workload of visualization processing. Compared to the extensive works on static model approximation  very little attentions have been paid to animated models. In this paper  we propose a new method to approximate animated models with local area distortion and deformation degree control. Our method uses an improved quadric error metric guided by a local area distortion measurement as a basic hierarchy. Also  we define a deformation degree parameter to be embedded into the aggregated quadric errors  so areas with large deformation during the animation can be successfully preserved. Finally  a mesh optimization process is proposed to further reduce the geometric distortion for each frame. Our approach is fast  easy to implement  and as a result good quality dynamic approximations with well-preserved sharp features can be generated at any given frame. 2010 SPIE.   用圆锥体拟合线性模型点云数据的优化计算 期刊论文  OAI收割 计算机辅助设计与图形学学报, 2010, 卷号: 22, 期号: 8, 页码: 1324-1330 孙春娟; 朱滨海; 王文成   |  收藏  |  浏览/下载：24/0  |  提交时间：2011/05/24 几何重建,近似算法,最小包围圆锥geometric reconstruction  approximation algorithm  the smallest enclosing cone   a ptas for semiconductor burn-in scheduling 期刊论文  OAI收割 JOURNAL OF COMBINATORIAL OPTIMIZATION, 2005, 卷号: 9, 期号: 1, 页码: 1-13 Deng XT; Feng HD; Li GJ; Shi BY   |  收藏  |  浏览/下载：15/0  |  提交时间：2011/07/28 approximation algorithm  batch processing  release date  geometric rounding  time stretching   Study on extraction method of phase information in X-ray diffraction enhanced Imaging 期刊论文  OAI收割 HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2005, 卷号: 29, 页码: #REF! 作者:  Huang, ZF;  Li, Z;  Kang, KJ;  Zhu, PP;  Yuan, QX 收藏  |  浏览/下载：20/0  |  提交时间：2016/04/12 diffraction enhanced imaging  geometric-optics approximation  rocking curve  synchrotron radiation