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Is block matching an alternative tool to LBP for face recognition?
KTH, School of Computer Science and Communication (CSC), Media Technology and Interaction Design, MID.ORCID iD: 0000-0003-3779-5647
2014 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we introduce the Block Matching (BM) as an alternative patch-based local matching approach for solving the face recognition problem. The Block Matching enables an image patch of the probe face image to search for its best matching from displaced positions in the gallery face image. This matching strategy is very effective for handling spatial shift between two images and it is radically different from that of the widely used LBP type patch-based local matching approaches. Our evaluations on the FERET and CMU-PIE databases show that the performance of this simple method is well comparable (superior) to that of the popular LBP approach. We argue that the Block Matching could provide face recognition a new approach with more flexible algorithm architecture. One can expect that it could lead to much higher performance when combining with other feature extraction techniques, like Gabor wavelet and deep learning.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2014. 723-727 p.
Keyword [en]
block matching, face recognition, LBP, patch-based matching, Feature extraction, Image processing, Motion compensation, Algorithm architectures, Feature extraction techniques, Gabor wavelets, Local matching, New approaches, Patch based, Image matching
National Category
Computer Vision and Robotics (Autonomous Systems)
Identifiers
URN: urn:nbn:se:kth:diva-174798DOI: 10.1109/ICIP.2014.7025145Scopus ID: 2-s2.0-84949929395ISBN: 9781479957514 (print)OAI: oai:DiVA.org:kth-174798DiVA: diva2:878324
Conference
2014 IEEE International Conference on Image Processing, ICIP 2014
Note

QC 20151208

Available from: 2015-12-08 Created: 2015-10-07 Last updated: 2016-11-01Bibliographically approved
In thesis
1. Human Face Identification and Face Attribute Prediction: From Gabor Filtering to Deep Learning
Open this publication in new window or tab >>Human Face Identification and Face Attribute Prediction: From Gabor Filtering to Deep Learning
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

After decades of research, it is exciting to see that face recognition technology has entered a most flourishing era. Driven by the latest development in data science and especially technical evolutions in computer vision and pattern recognition, face recognition has achieved significant progress over the last three years. In the near future, people can expect many useful and interesting face recognition applications to be deployed in many situations: they can be used for identifying suspects, organizing your photos with family and friends, and making computers better understand human beings. Many mysterious face recognition tricks depicted in movies may become reality in several years' time.

This thesis focuses on the development of face recognition algorithms that identify people from a single still image. Two questions are specifically studied. First, it introduces how we identify faces captured in controlled scenarios with cooperative users. In this scenario, a face recognition system captures a face and finds the most similar face from the ones stored in the face recognition system. Second, it describes our solutions for predicting face attributes from faces captured under arbitrary imaging conditions. These two problems were tackled by different schools of technologies: the solution to the first question employed a learning-free approach, whereas the latter question was solved by using the most recent Deep Learning technology. Thus, this thesis also reflects the technological evolution of face recognition over recent years.

To identify faces in controlled scenarios, we propose a novel Block Matching approach, which can effectively match faces without feature engineering or any machine learning components. By representing faces with very concise Gabor phase codes and matching them through our Block Matching approach, the identification accuracy is entirely comparable to and even better than the state-of-the-art. For predicting the attributes from faces captured in the wild, we propose leveraging the off-the-shelf mid-level representations from pre-trained convolutional neural networks. Comparative experiments show that our solution outperforms the previous state-of-the-art solution with a large margin in terms of both accuracy and efficiency. 

The approaches described in this thesis may look different from the ``mainstream''. But, together with the empirical findings, I hope they could provide some insights and update widely adopted concepts for solving related face recognition and computer vision problems.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2016. 27 p.
Series
TRITA-CSC-A, ISSN 1653-5723
National Category
Engineering and Technology
Research subject
Media Technology
Identifiers
urn:nbn:se:kth:diva-195092 (URN)978-91-7729-156-5 (ISBN)
Public defence
2016-11-11, K1, 13:00 (English)
Opponent
Supervisors
Note

QC 20161103

Available from: 2016-11-03 Created: 2016-11-01 Last updated: 2016-11-16Bibliographically approved

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Li, Haibo

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