Hossein Ebrahimpour-Komleh

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The recent area of Wireless Sensor Networks (WSNs) has brought new challenges to developers of network protocols. Energy consumption and network coverage are two important challenges in wireless sensor networks. We investigate intelligent techniques for node positioning to reduce energy consumption with coverage preserved in wireless sensor network. A(More)
Image thresholding considered as a popular method for image segmentation. So far, many approaches have been proposed for image thresholding. Maximum entropy thresholding has been widely applied in the literature. This paper proposes a multilevel image thresholding (MECOAT) using cuckoo optimization algorithm (COA). COA is a new nature- based optimization(More)
Fingerprint classification is an important phase in increasing the speed of a fingerprint verification system and narrow down the search of fingerprint database. Fingerprint verification is still a challenging problem due to the difficulty of poor quality images and the need for faster response. The classification gets even harder when just one core has(More)
In this paper, an effective method for human eye tracking and also decreasing the current challenges and problems in its algorithms, possibly as real time and for unconstrained environments has been proposed. In this method, firstly face has been detected and segmented from the remaining parts to make the searching area in tracking stage, narrower and(More)
Brain extraction is the task of removing non-brain tissues from brain magnetic resonance images. Brain extraction is a preprocessing step in many applications related to the brain image analysis. Accurate extraction of brain tissue is a laborious task. So, automatic extraction of it is a need in many applications. In this study we propose an automatic(More)
In this paper, a new method for image hiding is presented which takes advantages of Particle Swarm Optimization (PSO) and neighborhood similarity features in order to embed pixels of secret image in best positions of host image. Most Significant Bits (MSBs) of secret image pixels are utilized to hide in Least Significant Bits (LSBs) of host image pixels.(More)
To my wife Soheila and my little daughter Niloufar Abstract Fractals are popular because of their ability to create complex images using only several simple codes. This is possible by capturing image redundancy and presenting the image in compressed form using the self similarity feature. For many years fractals were used for image compression. In the last(More)
In this paper, we introduce an interactive whiteboard system using image processing and computer vision techniques. This system is more portable than other similar interactive systems, because the system only needs a computer, laser pointer and a camera to communicate with the user. Using a standard laser pointer, user can send his/her commands to the(More)