Ahmed BEN JMAA

Journal Papers

[J1]- Ahmed BEN JMAA, Walid MAHDI, Yousra BEN JEMAA and Abdelmajid BEN HAMADOU
Title: A New Approach For Hand Gestures Recognition Based on Depth Map Captured by RGB-D Camera
Abstract: This paper presented a new approach for hand gestures recognition based on depth Map captured by an RGB-D Kinect camera. Although this camera provides two types of information ”Depth Map” and ”RGB Image”, only the depth data information was used to analyze and recognize the hand gestures. Given the complexity of this task, we first proposed a new method based on edge detection to eliminate the noise and segment the hand. Then we introduced new descriptors modeling the hand gesture. These features are invariant to scale, rotation and translation. Our approach was applied on French sign language alphabet to show its effectiveness and evaluate the robustness of the proposed descriptors. The experimental results clearly show that the proposed system is very satisfactory and able to recognize the French alphabet sign with an accuracy of more than 93%. Our approach was also applied to a public dataset in order to be compared to existing works. The results prove that our system can outperform previous methods using the same dataset.
Journal: Computación y Sistemas (CyS)
Indexed in: DBLP, Scopus
Quartile: Q3
Impact factor: 0.184 (SJR)
Link: DOI:10.13053/CyS-20-4-2390
Year: 2016

[J2]- Yousra BEN JEMAA, Ahmed DERBEL and Ahmed BEN JMAA
Title: 2DPCA fractal features and genetic algorithm for efficient face representation and recognition
Abstract: In this article, we present an automatic face recognition system. We show that fractal features obtained from Iterated Function System allow a successful face recognition and outperform the classical approaches. We propose a new fractal feature extraction algorithm based on genetic algorithms to speed up the feature extraction step. In order to capture the more important information that is contained in a face with a few fractal features, we use a bi-dimensional principal component analysis. We have shown with experimental results using two databases as to how the optimal recognition ratio and the recognition time make our system an effective tool for automatic face recognition.
Journal: EURASIP Journal on Information Security
Indexed in: DBLP, Scopus
Quartile: Q3
Impact factor: 0.315 (SJR)
Link: DOI:10.1186/1687-417X-2011-1
Year: 2011.

[J3]- Ahmed BEN JMAA, Walid MAHDI, Yousra BEN JEMAA and Abdelmajid BEN HAMADOU
Title: A new approach for digit recognition based on hand gesture analysis
Abstract: We present in this paper a new approach for hand gesture analysis that allows digit recognition. The analysis is based on extracting a set of features from a hand image and then combining them by using an induction graph. The most important features we extract from each image are the fingers locations, their heights and the distance between each pair of fingers. Our approach consists of three steps: (i) Hand detection and localization, (ii) fingers extraction and (iii) features identification and combination to digit recognition. Each input image is assumed to contain only one person, thus we apply a fuzzy classifier to identify the skin pixels. In the finger extraction step, we attempt to remove all the hand components except the fingers, this process is based on the hand anatomy properties. The final step consists on representing histogram of the detected fingers in order to extract features that will be used for digit recognition. The approach is invariant to scale, rotation and translation of the hand. Some experiments have been undertaken to show the effectiveness of the proposed approach.
Journal: International Journal of Computer Science and Information Security, Vol. 2, No. 1, Computer, vision and Pattern recognition series (IJCSIS09)
Indexed in: DBLP
Link: arxiv.org/pdf/0906.5039
Year: 2009

Conference & Symposium Papers

[C1]- Ahmed BEN JMAA, Walid MAHDI, Yousra BEN JEMAA and Abdelmajid BEN HAMADOU
Title: Arabic sign language recognition based on HOG Descriptor
Conference: 8^th International Conference on Graphic and Image Processing (ICGIP 2016)
Editor: SPIE Digital Library
Indexed in: Scopus
Link: DOI:10.1117/12.2266453
Year: 2017

[C2]- Ahmed BEN JMAA, Walid MAHDI, Yousra BEN JEMAA and Abdelmajid BEN HAMADOU
Title: Hand localization and fingers features extraction: Application to digit recognition in sign language
Conference: 10^th International Conference on intelligent Data Engineering and Automated Learning (IDEAL09)
Book title: Intelligent Data Engineering and Automated Learning - IDEAL 2009, Lecture Notes in Computer Science Volume 5788, 2009, pp 151-159
Editor: Springer-Verlag Berlin Heidelberg
Indexed in: DBLP, Scopus
Rank: C
Link: DOI:10.1007/978-3-642-04394-9_19
Year: 2009

[C3]- Ahmed BEN JMAA, Yousra BEN JEMAA, Walid MAHDI and Abdelmajid BEN HAMADOU
Title: Automatic hand localization for gesture recognition
Conference: 4^th International Symposium on Image/Video Communications over fixed and mobile networks (ISIVC08)
Editor: IEEE , EURASIP, Universit de Deusto, Bilbao, Espagne
Year: 2008

[C4]- Ahmed BEN JMAA, Maher BEN JEMAA and Yousra BEN JEMAA
Title: Optimization of fractal image compression with genetic algorithms
Conference: 2^nd International Symposium on Communications, Control And Signal Processing (ISCCSP06)
Editor: Eurasip
Indexed in: Scopus
Link: eurasip.org/Proceedings:ISCCSP2006
Year: 2006