illumination modeling for face recognition

... “Eigenfaces for recognition, ” Journal of Cognitive Neuroscience, vol 3, no 1, pp 71–86, 1991 [6] S Yan, D Xu, Q Yang, L Zhang, X Tang, and H.-J Zhang, “Multilinear discriminant analysis for face recognition, ” ... appropriate method for dimension reduction of face images with varying factors To test the quality of dimension reduction, we conducted face recognition tests In all experiments, face images are ... feature sets (optimal for template storage) and increased matching speed due to these smaller dimensional features Our approach is thus attractive for robust face recognition for real-world defense...

Ngày tải lên: 21/06/2014, 16:20

... Previous Work Techniques for exploiting stochastic context-free grammars for language modeling have been explored for more than a decade Early approaches included algorithms for efficiently calculating ... advocated in Rosenfeld et al (2001), which used Maximum Entropy modeling to allow for the use of shallow syntactic features for language modeling A second contrast between our work and previous work, ... are a first step in examining the potential utility of syntactic features for discriminative language modeling for speech recognition We tried two possible sets of features derived from the full...

Ngày tải lên: 20/02/2014, 15:20

... need for real-time applicability thus demands for high performance and efficiency of applications for face recognition This paper describes a model-based approach for the interpretation of face ... Discussion Before being able to build advanced applications for face recognition, such as expression recognition, or identity recognition, there are some difficulties with basic face recognition ... human faces, the large variation in the appearance of face images and the large dimensionality in a typical face image Secondly, the need for real-time applicability demands for high performance...

Ngày tải lên: 24/04/2014, 13:38

... approaches for face recognition in recent years are Eigenface [19], Fisherface [20], Bayesian method [21], Elastic Bunch Graph Matching (EBGM) [3], LBP-based methods [11, 12], and so forth The performances ... losing the structure information of the object, and the spatial structure information is of the high importance for face recognition In order to reserve the spatial information in the histogram ... on the sum rule It can actually use the spatial structure information of the face image, therefore, it should be appropriate to face recognition Experiments on the standard FERET database Experiment...

Ngày tải lên: 21/06/2014, 22:20

... difficult task for a face identification system It is for this reason that the recognition rates for wavelet/HMM are rather low for this database, ranging from 35.8% when Haar was used to 42.9% for Gabor ... variety of face recognition approaches, and clearly this benefit extends to HMM-based face recognition Using Gabor filters increased recognition results even further The identification rate for the ... (5) Parameter reestimation = ξ r (u, v) v=1 Novel SHMM modeling for human face recognition (1) Feature extraction SHMM modeling of the human face has never been undertaken by any researchers or...

Ngày tải lên: 22/06/2014, 06:20

... variations in face images, we have proposed a pairwise neural-network system for face recognition We assumed that the use of such classification scheme can improve the robustness of face recognition ... many: illumination cone models for face recognition under variable lighting and pose,” IEEE Transactions on Pattern Analysis and Machine Intelligence, vol 23, no 6, pp 643–660, 2001 [8] “Faces94 face ... scheme to implement a neural network-based face recognition system which would be robust to noise in image data A PAIRWISE NEURAL-NETWORK SYSTEM FOR FACE RECOGNITION The idea behind the pairwise...

Ngày tải lên: 22/06/2014, 19:20

... recognition method that needs only one single training image per subject for novel view synthesis and robust recognition of faces under variable illuminations and poses The structure of our face ... frontal view image I f does not reduce the recognition performance We now have a very efficient solution for face recognition to handle both pose and illumination variations as only one image I ... recovered for visualization purpose, all the recognition experiments are performed on grayscale images for faster speed We are taking the efforts to investigate how color information affects the recognition...

Ngày tải lên: 22/06/2014, 19:20

... Yang, “Kernel eigenfaces vs kernel fisherfaces: face recognition using kernel methods,” in Proceedings of the 5th IEEE International Conference on Automatic Face and Gesture Recognition (FGR ’02), ... ICA: an alternative formulation and its application to face recognition, ” Pattern Recognition, vol 38, no 10, pp 1784–1787, 2005 [7] B Heisele, P Ho, J Wu, and T Poggio, Face recognition: component-based ... algorithm seems best suited for face oriented tasks, outperforming clearly all other solutions in case of AR database While explaining the exact reason for this remarkable performance needs further...

Ngày tải lên: 22/06/2014, 19:20

... carried out in face modeling and recognition, 3D information is still not widely used for recognition [10–12] Initial studies concentrated on curvature analysis [13–15] The existing 3D face recognition ... and colour eigenfaces for face recognition, ” Pattern Recognition Letters, vol 24, no 9-10, pp 1427–1435, 2003 J.-G Wang, H Kong, and R Venkateswarlu, “Improving face recognition performance by combining ... transform for face recognition, ” Pattern Recognition, vol 38, no 7, pp 1125–1129, 2005 [30] M Visani, C Garcia, and J.-M Jolion, “Two-dimensionaloriented linear discriminant analysis for face recognition, ”...

Ngày tải lên: 22/06/2014, 19:20

... fact that face recognition is actually to find the most similar match with the least difference, the selected features will also be very important for recognition KERNEL ENHANCEMENT FOR RECOGNITION ... methods for classification However, SVM is basically designed for two-class problem and it has been shown in [23] that nonlinear kernel subspace methods perform better than SVM for face recognition ... features 6.2 Recognition performance on the subset of FERET database Once the informative Gabor features (InfoGabor) are selected, we are now able to apply them directly for face recognition Normalized...

Ngày tải lên: 22/06/2014, 23:20

... useful for recognition We conclude that color histogram equalization is not a useful preprocessing step for eigenface face recognition, regardless of the choice of method for color transformation ... actual face recognition approach that is used For testing purposes, however, we have used the wellknown eigenface method Our experiments using the eigenface method for recognition resulted in performance ... Conversion for Face Recognition [18] M Turk and A Pentland, “Eigenfaces for recognition, ” Journal of Cognitive Neuroscience, vol 3, no 1, pp 71–86, 1991 [19] P Grother, “Software Tools for an Eigenface...

Ngày tải lên: 23/06/2014, 01:20

... transcription For example, if the ASR output contains the term sequence “… and farther home run for David forty says…” and the closed captioning contains the sequence “…another home run for David ... http://cmusphinx.sourceforge.net/html/cmusphinx.php 127 Precision of Information Retrieval One of the most commonly used applications of ASR for video is to support information retrieval (IR) ... Conclusions We have described a method for improving speech recognition in video The method uses grounded language modeling, an extension of tradition language modeling in which the probability of...

Ngày tải lên: 17/03/2014, 02:20

... ì ơề ì ẩ ầẵ ôỉẳ ầ forehead ầỉ ẵ ẳ ếỉẳ ẳ ệ ếỉẳẳ ì ỉ ìễ ệ ìỉ ỉ ểệệ ìễểề ề ỉể ầỉẳ è ểệạ ệ ệ é ôỉẳ ì ệ ì ỉ ễệể é...

Ngày tải lên: 24/04/2014, 13:16

... ệểẹ ỉ ỉ é ìỉ Training Training Face Face Pattern Pattern Video Sequence recognized YES Face Tracking NO Detection "Best Face" over time Faces Face Recognition new face Background Pattern Background ... ề ì ểề ĩễ ệ ẹ ềỉ ééí Deformable ỉ ỉỉ ệ ẵ ì ề ểéểệ ề Eye Region Template ì ì ểề ề Constraints Yes Head Detection No Eye Detection Face Tracking Best Face Selection Foregroround Regions Video ... ỉ ểề ì ì ể ì ệ ỉ ểềì ề ẹể é ấ ể ề ỉệ ề ẹể ề ỉ ề ẹể éỉ ỉ ìỉ é ỉệ ề ề éé é ểể ì é ểể ệ éì ỉ forehead forehead eyes eyes nose nose mouth mouth chin chin ệ ắẵ ề ì ề ềỉ í ìé ỉ ề ẹ é ỉệ ì è ệ ééể...

Ngày tải lên: 24/04/2014, 14:09

... generate the eigenfaces Figure shows one single-band image before and after the normalization, and the first 10 eigenfaces for the dataset The number of eigenfaces used for face recognition was ... plots the recognition rates for different multiband eigenface methods First we selected the bands in order of increasing center wavelength and performed eigenface recognition tests for the first ... performance improves the recognition rate for N = but worsens the performance somewhat for larger values of N In either case, the multiband method based on the PCT has the best performance for...

Ngày tải lên: 21/06/2014, 20:20

... for face verification is employed The images for training and testing are also exactly the same as those for face verification To minimize the effect of randomness, all the experiments were performed ... cancellable biometric filters for illumination- tolerant face verification,” in Proceedings of the IEEE International Conference Cancellable Biometric Filters for Face Recognition, vol 5404 of Proceedings ... Results on Face Identification For face identification, we use all the 5676 images in the data set for experiments A set of 2836 images from 520 human subjects was randomly selected for training,...

Ngày tải lên: 21/06/2014, 20:20

... this paper, we present a novel face descriptor based on multiple single-view recognition, which aims to contain multiview 3D information of a person to help for face recognition in any view In this ... enough data to be used for research on multiview face recognition Most face database such as PIE, CMU, and YALE has been built mainly for frontal views even though nonfrontal face images are more ... MULTIVIEW 3D FACE DESCRIPTOR The new descriptor we propose is called multiview 3D face descriptor, which is supposed to have sufficient 3D information of a face by describing the face as a mosaic...

Ngày tải lên: 22/06/2014, 19:20

... the face along with the neck region (see Figure 1(a)) Thus, skin colour based face segmentation provides only coarse face segmentation, and cannot be used directly for face recognition The face ... 1: Recognition rate of the online face recognition system Recognition rate of the online face recognition system PCA features LDA features 90% 98% variations captured in our lab was used for ... training the face recognition algorithm The result of the online face recognition system using the proposed face segmentation algorithm is shown in Table The entire algorithm for face detection,...

Ngày tải lên: 22/06/2014, 20:20

... CHANNEL MODELING 18 Note: Communications vs Channel Modeling In communications theory, the time domain is always the base domain in which all transforms are referenced In channel modeling theory, for ... channel modeling, the same Fourier transform definitions are used to move back and forth between time and frequency for both signals and channels However, frequency is chosen as the base domain for ... definitions for their Fourier transformations To perform a transformation into a spectral domain, insert the channel function into the brackets of the expression in the column of Table 2.2 marked Transform...

Ngày tải lên: 20/11/2012, 11:36