face recognition using eigenfaces or fisherfaces

... HFÂYYy ô @@fP í ệ wtÂaậ chin mouth nose eyes forehead â â tửƯY@ưÊ ô @@fP ă â í ả cDÔYYy ẳtÂaậ chin mouth nose eyes forehead u j ô @%@d ô ă @YtfƯ}yu@ ... nose Ă â ẵ é ă Â ă ậ í ỉ Ă(Y8tf@yƯƯY}Ư}ĂYQtÂaậ eyes forehead O i, j O i+m, j O i, j+n O i+m, j+n ô é ă ` {hjƯ%ĐYyTaYth ... Embedded Viterbi Initialize Parameters ă Đ ă í Â ưtÂF{ưDâh@SƠV@ FĐaậ Uniform Segmentation 1D Viterbi Prototype HMM OT 0, OT 0, (N0) T1 1D Viterbi í Â ậ Ê ...

Ngày tải lên: 24/04/2014, 12:36

... where the variance among a set of face images is represented by a number of eigenfaces The face images, encoded as weight vectors of the eigenfaces, can be compared using a suitable distance measure ... discriminant Gabor features The objective of the work presented in this paper is to develop a hybrid approach for face identification using SHMMs for the first time The effect of using DWT for feature ... 10: Cumulative match scores for FERET database using Biorthogonal9/7 wavelet Correct match (%) 80 Biorthogonal9 / HMM Biorthogonal9 / SHMM 70 60 50 40 30 20 90 10 80 Correct match (%) 100 10...

Ngày tải lên: 22/06/2014, 06:20

... matrix M form an orthonormal basis for Rd Now the PCA of a face vector y related to the ensemble X is obtained by projecting vector y onto the subspace spanned by k eigenvectors corresponding ... on face recognition methods This paper proposes to make use of both local features and global features for face recognition, and performs experiments in combining two global feature face recognition ... global features for face recognition Many face recognition algorithms have been developed and we have selected four current and popular methods, namely, eigenface [6, 7, 8], spectroface [9], independent...

Ngày tải lên: 23/06/2014, 01:20

... important works on face recognition reported in the literatures They include studies in three principal areas: facial representation, face detection and face recognition A face recognition algorithm ... Face Recognition Using Probabilistic PCA 78 5.4 Face Recognition Using Two-Dimensional PCA 80 5.5 Face Recognition Using LDA 81 5.6 Proposed Face ... to Face Detector 68 Summary 68 Distance Learning for Face Recognition 69 5.1 Description of Face Recognition System 5.2 Face Recognition Using...

Ngày tải lên: 12/05/2016, 15:40

... Viterbi Segmentation NO 1000 400 500 200 Baum-Welch 500 Initialize Parameters Algorithm Forward Backward Uniform Segmentation Prototype HMM Initialized HMM Ă Ơ  Ơ Ơơ Ô  ... Viterbi Model Probability Computation Extraction Not Frontal Face Feature Extraction Probability Computation Image Decision Test Frontal Face đ ụ ả ềư Ơ Ô fqXfqĐmlàqxsrifhê  ... Ô qĐàq Ơ Ư Ă Ô Â Ô ẳÂ Ô Ô ả Ô Â Ơ Ô ề ữ ò  ràĐ5fqF%sHĐCêêf%êĐà%fX%ảhề forehead a12 a22 L H ả ề Â Ô qCqĐh5Fspê86% uĐơfêf%FqĐfê    Ư Ô Ư Â Â Ô ẳ...

Ngày tải lên: 24/04/2014, 12:35

... 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 ... three alternatives all outperformed the basic algorithm when a straightforward test was done However, a minor modification to the search algorithm (allowing one or more ‘forced’ iterations in which ... important example of face- recognition techniques used in these smart environments In order to be able to recognize faces, there are some difficulties to overcome Faces are highly variable, deformable...

Ngày tải lên: 24/04/2014, 13:38

... sf is more complex This is due to the effects of fortshortening and interpolation Fortshortening leads to more contributions for the rotated view recognition but less in the frontal view recognition ... can be avoided The block diagonal form of the transformation matrices preserves the energy on each order l = 0, 1, Moreover, the orthonormality of the transformation matrices helps to further ... set with fifty 3D face scans and corresponding texture maps from Vetter’s 3D face database [10], and generate nine basis images for each face model For a novel N-dimensional vectorized image I,...

Ngày tải lên: 22/06/2014, 19:20

... for the method’s performance inferiority to frontalface-based approaches CONCLUSIONS This paper has proposed audio-visual speech recognition methods using lip information extracted from side -face ... of normalized horizontal and vertical variances of flow vector components are built 4.1 AUDIO-VISUAL SPEECH RECOGNITION Overview Figure shows our bimodal speech recognition system using side -face ... before computing the LMVFs In order to cope with the frame rate differences, the normalized lip-angle values and LMVFs (the normalized horizontal and vertical variances of optical-flow vector components)...

Ngày tải lên: 22/06/2014, 19:20

... for the method’s performance inferiority to frontalface-based approaches CONCLUSIONS This paper has proposed audio-visual speech recognition methods using lip information extracted from side -face ... of normalized horizontal and vertical variances of flow vector components are built 4.1 AUDIO-VISUAL SPEECH RECOGNITION Overview Figure shows our bimodal speech recognition system using side -face ... before computing the LMVFs In order to cope with the frame rate differences, the normalized lip-angle values and LMVFs (the normalized horizontal and vertical variances of optical-flow vector components)...

Ngày tải lên: 22/06/2014, 22:20

... 1.1.1 The General Face Recognition Problem Definition Formally stated, a face recognition problem involves identifying 2D, 3D or video data of a human face using a stored database of faces We have ... reported Chang et al [6] adapted an eigenface decomposition on a fusion of 3D range images and 2D snapshot They reported 94% recognition when using 3D face recognition alone and more than 98% using ... input data: either 2D (intensity images), or 3D (surfaces, meshes or range data) 2.1 2D Model-Based Face Recognition While 2D face recognition systems perform reasonably well in a controlled environment...

Ngày tải lên: 15/09/2015, 22:42

... for each item matched correctly and unambiguously with a line No partial credit should be given When there are more than one objects for the same word (e.g., chairs), any line drawn to the corresponding ... development of this task type was supported by UCLA Language Resource Program under the directorship of Russell N Campbell The author also thanks Lyle F Bachman for his support during the development of ... picture (Pause) Look at the words around the picture (Pause.) Find the biggest word What is that word? (Students will say, "Table.") A line has been drawn from that word to the TABLE to match them...

Ngày tải lên: 06/09/2013, 11:10

... previous word (space or new line) e Move cursor to end of next word (space, new line, or punctuation) Shift+e Move cursor to end of next word (space or new line) Left arrow or Backspace Move cursor ... (yank) the current letter, word, or end of line from cursor Shift+y Yank current line p Pastes cut or yanked text after cursor Shift+p Pastes cut or yanked text before cursor Using Miscellaneous Commands ... line Home or $ Move cursor to end of line End or ^ or Move cursor to line beginning ( Move cursor to beginning of previous sentence ) Move cursor to beginning of next sentence { Move cursor to beginning...

Ngày tải lên: 29/09/2013, 22:20

... Cisco Express Forwarding (CEF) forwarding adjacency entries Before a failure, traffic is being forwarded using both of these forwarding entries On failure of an adjacent link or neighbor, the switch ... EIGRP neighbor information for each access switch and look for the flag indicating queries being suppressed Distribution#sh ip eigrp neighbors detail gig 3/3 IP-EIGRP neighbors for process 100 ... that provides the forwarding High Availability Campus Network Design— Routed Access Layer using EIGRP or OSPF OL-9011-01 23 Implementing Layer Access using OSPF path for the majority of traffic...

Ngày tải lên: 24/01/2014, 10:20

... Correct-Part for an Error-Part when the Error-Part is detected in a recognition result (see Figure 2-1) Table 2-1 shows some Error-Pattern examples Table 2-1 Examples of Error-Patterns Correct-Part Error-Part ... Because a long Error-Part is more accurate for matching, this step selects an ErrorPattern whose Error-Part is as long as possible For two arbitrary candidates, when one of their Error-Parts includes ... suitable for an Error-Pattern Therefore in this step, an Error-Pattem with its Error-Part as short as possible is selected For two arbitrary candidates, when one of their Error-Parts includes...

Ngày tải lên: 20/02/2014, 18:20

Ngày tải lên: 21/02/2014, 21:56

... algorithms or methods for dealing with OOV words should be used Errors in gender, number and verb tenses, which rose up to 7.7% and 5.3% of the errors, could be tackled using linguistic information ... speak aloud parts of the current hypothesis and possibly one or more corrections On-line HTR for interactive systems was first explored for interactive transcription of text images (Toselli et al., ... the first word, not, has been automatically corrected The user amends at by writing the word , which is correctly recognised by the HTR subsystem Finally, as the new proposed suffix is correct, the...

Ngày tải lên: 07/03/2014, 22:20

... whether or not the tuples that have not been matched are important or not If not, the sentences are paraphrases Despite using a parser and a semantic role identifier, Qiu et al.’s system performs worse ... pages 474–479, Orlando, FL Y Shinyama and S Sekine 2003 Paraphrase acquisition for information extraction In Proceedings of the ACL Workshop on Paraphrasing, Sapporo, Japan I Szpektor, H Tanev, ... selection deteriorates performance, especially accuracy, i.e., the full feature set is better, despite its redundancy Table also includes all other reported results for the MSR corpus that we are...

Ngày tải lên: 08/03/2014, 01:20

... Markov Model) for this task (Oh, et al., 1999) The main idea for extracting a foreign word is that the composition of foreign words would be different from that of pure Korean words, since the ... pure Korean word Therefore, the consonant information which is acquired from a corpus can be used to determine whether a syllable in the given term is likely to be the part of a foreign word or ... The formula (3.2) is used for extracting a transliterated word and the formula (3.3) is used for calculating the Transliterated Word Weight (WTrl) The formula (3.3) implies that terms have more...

Ngày tải lên: 08/03/2014, 05:20

... BBN's IdentiFinder Ideally, it can be estimated by using the forward-backward algorithm [Rabiner89] recursively for the 1st-order [Rabiner89] or 2nd -order HMMs [Watson+92] However, an alternative ... text Moreover, HMM seems more and more used in NE recognition because of the efficiency of the Viterbi algorithm [Viterbi67] used in decoding the NE-class state sequence However, the performance ... Determining Word Feature As stated above, token is denoted as ordered pairs of word-feature and word itself: g i =< f i , wi > Here, the word-feature is a simple deterministic computation performed...

Ngày tải lên: 17/03/2014, 08:20