نتایج جستجو برای: deformable face model

تعداد نتایج: 2245378  

2014
Chaobo Sun Xiaojie Wang Peng Lu

Object detection methods based on sliding windows has long been considered a binary classification problem, but this formulation ignores order of examples. Deformable part models, which achieves great success in object detection, have the same problem. This paper aims to give better order to detections given by deformable part models. We use a bagged LambdaMART to model both pair-wise and list-...

1997
Sven J. Dickinson Dimitri Metaxas

Active or deformable models have emerged as a popular modeling paradigm in computer vision. These models have the exibility to adapt themselves to the image data, ooering the potential for both generic object recognition and non-rigid object tracking. Because these active models are underconstrained, however, deformable shape recovery often requires manual segmentation or good model initializat...

Journal: :international journal of advanced design and manufacturing technology 0
salman naderi mehdi salmanitehrani kourosh hasanpour

in this paper, dynamical behavior of the delay mechanism of a special projectile controller is studied, using 3d finite element simulation. the controller considered here is among of high-acceleration mechanical controllers. due to high linear and angular accelerations of the projectile and also explosion risk, experimental investigation is very limited and almost impossible. so, numerical simu...

2007
Menion Croll

Volumetric models provide a realistic representation of three dimensional objects above and beyond what traditional surface models offer. The finite element method along with a volumetric model of an object can be used to create an effective representation of a deformable object that responds properly to external forces and stimuli. In particular, cutting is an important feature in many applica...

2004
Qiong Han Sarang Joshi

Qiong Han: Proper Shape Representation of Single Figure and Multi-Figure Anatomical Objects (Under the direction of Stephen M. Pizer) Extracting anatomic objects from medical images is an important process in various medical applications. This extraction, called image segmentation, is often realized by deformable models. Among deformable model methods, medial deformable models have the unique a...

Journal: :Pattern Recognition Letters 2009
Sanqiang Zhao Yongsheng Gao Baochang Zhang

Feature extraction and classification using Gabor wavelets have proven to be successful in computer vision and pattern recognition. Gabor feature based Elastic Bunch Graph Matching (EBGM), which demonstrated excellent performance in the FERET evaluation test, has been considered as one of the best algorithms for face recognition due to its robustness against expression, illumination and pose va...

2012
A. L. Yuille

Here T (.) is an intensity template for the object and φ(x) is a spatial warp. The {Bμ(.)} are basis functions of the warps and the {αμ} are the coefficients. The basis function are fixed and the α’s specify different examples of the object. For example T (.) is the image of a face and the φ(.) allow warps to get different shapes of faces. Note that the assumption that the warps can be expresse...

1998
Michael C. Burl Markus Weber Pietro Perona

Many object classes including human faces can be modeled as a set of characteristic parts arranged in a variable spatial con gu ration We introduce a simpli ed model of a deformable object class and derive the optimal detector for this model However the optimal detector is not realizable except under special circumstances indepen dent part positions A cousin of the optimal detector is developed...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده فنی و مهندسی 1387

abstract biometric access control is an automatic system that intelligently provides the access of special actions to predefined individuals. it may use one or more unique features of humans, like fingerprint, iris, gesture, 2d and 3d face images. 2d face image is one of the important features with useful and reliable information for recognition of individuals and systems based on this ...

Journal: :Frontiers in Physics 2022

We describe the thermodynamic state of a single-phase fluid confined to porous medium with Hill’s thermodynamics small systems, also known as nanothermodynamics. This way defining system thermodynamics, separate set control variables, may be useful for study transport in non-deformable media, where presently no consensus exists on pressure computations. For fluid, we observe that there are two ...

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