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Time-scale change detection applied to real-time abnormal stationarity monitoring
Detection of independently moving objects through stereo vision and ego-motion extraction
This method allows an early and reliable detection, even for objects partially occluded, of independent-moving objects, and highlights the errors in the disparity map, which can be used, in future works, to correct depth-estimation, through motion-ESTimation.
Matching Images Using Invariant Level-line Primitives under Projective Transformation
This paper deals with a new registration method based on a specific level-line grouping that is an appropriate method for matching outdoor image sequences and does not require any estimation of the unknown transformation between images and handle well the critical cases that usually lead to pairing ambiguities.
Dynamic objects detection through visual odometry and stereo-vision: a study of inaccuracy and improvement sources
A method for dynamic objects detection that relies on 3D image registration and residual displacement field evaluation and allows a reliable and early detection, even in hard cases (e.g. occlusions,...).
c-Velocity: A Flow-Cumulating Uncalibrated Approach for 3D Plane Detection
The error and robustness analysis of the proposed technique confirms that this cumulative approach is very efficient for making the detection more robust and coping with optical flow imprecision, and suggests that the concept could be generalized to the detection of other parameterized surfaces than planes.
Crowd motion estimation and motionless detection in subway corridors by image processing
- S. Bouchafa, D. Aubert, S. Bouzar
- Computer ScienceProceedings of Conference on Intelligent…
- 9 November 1997
In this work, we tried to provide, in the context of crowd monitoring in subway (underground railway) station corridors, a motion estimation method and a motionless detection method which both take…
Automatic Counterflow Detection in Subway Corridors by Image Processing
- S. Bouchafa, D. Aubert, L. Beheim, A. Sadji
- EngineeringJournal of Intelligent Transportation Systems…
- 1 January 2001
A motion estimation method is developed that takes into account two difficulties: real time constraint and non-rigid moving objects (the pedestrians) and block matching, optical flow and Gabor filtering are chosen.
Efficient cumulative matching for image registration
WeCo-SLAM: Wearable Cooperative SLAM System for Real-Time Indoor Localization Under Challenging Conditions
A real-time tracking system for continuously locating emergency response agents in challenging conditions is presented and is able to build a global consistent 3D LiDAR Map that is post-processed to create a 3D reconstruction at different level of details.
Multi-Robot Task Sequencing & Automatic Path Planning for Cycle Time Optimization: Application for Car Production Line
- Hicham Touzani, H. Hadj-Abdelkader, N. Séguy, S. Bouchafa
- Computer Science, BusinessIEEE Robotics and Automation Letters
- 1 April 2021
This letter proposes a fast algorithm that generates a sequenced near-optimal solution for Multi-Robotic Task Sequencing Problem ‘min(sum-max) MGTSP’ model, and performs a double optimization in both the task and configuration space.