Modified SIFT Descriptors for Face Recognition under Different Emotions
The main goal of this work is to develop a fully automatic face recognition algorithm. Scale Invariant Feature Transform (SIFT) has sparingly been used in face recognition. In this paper, a Modified SIFT (MSIFT) approach has been proposed to enhance the recognition performance of SIFT. In this paper...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Journal of Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/9387545 |
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| _version_ | 1832557029391073280 |
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| author | Nirvair Neeru Lakhwinder Kaur |
| author_facet | Nirvair Neeru Lakhwinder Kaur |
| author_sort | Nirvair Neeru |
| collection | DOAJ |
| description | The main goal of this work is to develop a fully automatic face recognition algorithm. Scale Invariant Feature Transform (SIFT) has sparingly been used in face recognition. In this paper, a Modified SIFT (MSIFT) approach has been proposed to enhance the recognition performance of SIFT. In this paper, the work is done in three steps. First, the smoothing of the image has been done using DWT. Second, the computational complexity of SIFT in descriptor calculation is reduced by subtracting average from each descriptor instead of normalization. Third, the algorithm is made automatic by using Coefficient of Correlation (CoC) instead of using the distance ratio (which requires user interaction). The main achievement of this method is reduced database size, as it requires only neutral images to store instead of all the expressions of the same face image. The experiments are performed on the Japanese Female Facial Expression (JAFFE) database, which indicates that the proposed approach achieves better performance than SIFT based methods. In addition, it shows robustness against various facial expressions. |
| format | Article |
| id | doaj-art-71f8b96f11904c2f98f10c3f6fcd4c86 |
| institution | Kabale University |
| issn | 2314-4904 2314-4912 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj-art-71f8b96f11904c2f98f10c3f6fcd4c862025-02-03T05:43:52ZengWileyJournal of Engineering2314-49042314-49122016-01-01201610.1155/2016/93875459387545Modified SIFT Descriptors for Face Recognition under Different EmotionsNirvair Neeru0Lakhwinder Kaur1Punjabi University, Patiala 147002, IndiaPunjabi University, Patiala 147002, IndiaThe main goal of this work is to develop a fully automatic face recognition algorithm. Scale Invariant Feature Transform (SIFT) has sparingly been used in face recognition. In this paper, a Modified SIFT (MSIFT) approach has been proposed to enhance the recognition performance of SIFT. In this paper, the work is done in three steps. First, the smoothing of the image has been done using DWT. Second, the computational complexity of SIFT in descriptor calculation is reduced by subtracting average from each descriptor instead of normalization. Third, the algorithm is made automatic by using Coefficient of Correlation (CoC) instead of using the distance ratio (which requires user interaction). The main achievement of this method is reduced database size, as it requires only neutral images to store instead of all the expressions of the same face image. The experiments are performed on the Japanese Female Facial Expression (JAFFE) database, which indicates that the proposed approach achieves better performance than SIFT based methods. In addition, it shows robustness against various facial expressions.http://dx.doi.org/10.1155/2016/9387545 |
| spellingShingle | Nirvair Neeru Lakhwinder Kaur Modified SIFT Descriptors for Face Recognition under Different Emotions Journal of Engineering |
| title | Modified SIFT Descriptors for Face Recognition under Different Emotions |
| title_full | Modified SIFT Descriptors for Face Recognition under Different Emotions |
| title_fullStr | Modified SIFT Descriptors for Face Recognition under Different Emotions |
| title_full_unstemmed | Modified SIFT Descriptors for Face Recognition under Different Emotions |
| title_short | Modified SIFT Descriptors for Face Recognition under Different Emotions |
| title_sort | modified sift descriptors for face recognition under different emotions |
| url | http://dx.doi.org/10.1155/2016/9387545 |
| work_keys_str_mv | AT nirvairneeru modifiedsiftdescriptorsforfacerecognitionunderdifferentemotions AT lakhwinderkaur modifiedsiftdescriptorsforfacerecognitionunderdifferentemotions |