نتایج جستجو برای: رادیوگرافی alignment view

تعداد نتایج: 341338  

2009
Yanchao Su Haizhou Ai Shihong Lao

For multi-view face alignment (MVFA), the non-linear variation of shape and texture, and the self-occlusion of facial feature points caused by view change are the two major difficulties. The state-of-the-art MVFA methods are essentially view-based approaches in which views are divided into several categories such as frontal, half profile, full profile etc. and each of them has its own model in ...

2003
Cen Rao Alexei Gritai Mubarak Shah Tanveer F. Syeda-Mahmood

In this paper, we propose a novel method to establish temporal correspondence between the frames of two videos. 3D epipolar geometry is used to eliminate the distortion generated by the projection from 3D to 2D. Although the fundamental matrix contains the extrinsic property of the projective geometry between views, it is sensitive to noise. Therefore, we propose the use of a rank constraint of...

Journal: :CoRR 2017
Jiankang Deng George Trigeorgis Yuxiang Zhou Stefanos Zafeiriou

The de facto algorithm for facial landmark estimation involves running a face detector with a subsequent deformable model fitting on the bounding box. This encompasses two basic problems: i) the detection and deformable fitting steps are performed independently, while the detector might not provide best-suited initialisation for the fitting step, ii) the face appearance varies hugely across dif...

Journal: :Computer Vision and Image Understanding 2012
Adam P. Harrison Dileepan Joseph

Photometric stereo is a well-established method to estimate surface normals of an object. When coupled with depth-map estimation, it can be used to reconstruct an object’s height field. Typically, photometric stereo requires an image sequence of an object under the same viewpoint but with differing illumination directions. One crucial assumption of this configuration is perfect pixel correspond...

2003
Kristine F. Dery

While there is significant evidence to suggest that the alignment of Human Resources(HR) and Information Technology(IT) planning and implementation processes have a positive impact on firm performance, there is little discussion on how to achieve alignment. Industry evidence suggests there are limited communications or connections between HR and IT executives, and significant problems in transl...

2015
Fazle Elahi Faisal Lei Meng Joseph Crawford Tijana Milenkovic

Biological network alignment aims to find regions of topological and functional (dis)similarities between molecular networks of different species. Then, network alignment can guide the transfer of biological knowledge from well-studied model species to less well-studied species between conserved (aligned) network regions, thus complementing valuable insights that have already been provided by g...

Journal: :The archives of bone and joint surgery 2017
Seyyed Morteza Kazemi Tooraj Shafaghi Reza Minaei Reza Osanloo Hashem Abrishamkarzadeh Farshad Safdari

In the current study, we investigated that how sagittal femoral bowing can affect the sagittal alignment of the femoral component in total knee arthroplasty (TKA). There were 25 patients underwent TKA. Long leg radiography in lateral view was performed. The sagittal femoral bowing (SFB) and component alignment in relation to the sagittal mechanical axis and distal anterior cortical line (DACL) ...

Journal: :Int J. Information Management 2008
Ruey-Shun Chen Chia-Ming Sun Marilyn M. Helms Wen-Jang Jih

Strategic alignment involves the development and reconfiguration of information technology (IT) to support business strategies. This paper applies the dynamic capabilities perspective to analyze the strategic information system alignment process. The paper further argues the approach is constructive in understanding and overcoming difficulties in achieving and sustaining alignment. From a longi...

2008
Ergun Biçici

This paper presents a language-independent context-based sentence alignment technique given parallel corpora. We can view the problem of aligning sentences as finding translations of sentences chosen from different sources. Unlike current approaches which rely on pre-defined features and models, our algorithm employs features derived from the distributional properties of words and does not use ...

Journal: :Arquivos brasileiros de oftalmologia 2014
Ana Carla Ramos Vieira da Costa Márcia Caires Bestilleiro Lopes Célia Regina Nakanami

PURPOSE Evaluate the relationship between the postural alignment of the head and possible interference in the view of children. METHODS We evaluated 11 children between 2 and 7 years of age of both sexes, with the visually impaired, who had nystagmus and head lock position. The test Lea Grating Acuity Test® was used to collect measurements of visual acuity. This applied on two occasions: with...

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