Abbas Javadtalab

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A new segmentation algorithm for multifont Farsi/Arabic texts based on conditional labeling of up and down contours was presented in [1]. A preprocessing technique was used to adjust the local base line for each subword. Adaptive base line, up and down contours and their curvatures were used to improve the segmentation results. The algorithm segments 97% of(More)
Wide-spread availability of broadband internet access and the ubiquity of thin smart end devices such as smart-phones and tablets have led to a trend of moving more services away from the end devices to data centers, commonly referred to as <i>Cloud Computing</i>. For gaming, the stringent network bandwidth requirements of <i>Cloud Gaming</i> and the rapid(More)
Driver drowsiness is a major factor in most driving accidents. In this paper we present a robust and intelligent scheme for driver drowsiness detection employing the fusion of eye closure and yawning detection methods. In this approach, the driver's facial appearance is captured via a camera installed in the car. In the first step, the face region is(More)
Recent advancement in cameras and image processing technology has generated a paradigm shift from traditional 2D and 3D video to multi-view video (MVV) technology, while at the same time improving video quality and compression through standards such as high efficiency video coding (HEVC). In multi-view, cameras are placed in predetermined positions to(More)
In this paper we analyze current H.264 rate distortion algorithms (RD), specifically those developed in the x264 codec which is an open source and high performance H.264/AVC encoder, and evaluate their suitability for high definition video conferencing (HDVC). Moreover, we report the current shortcomings of these methods and highlight issues to be addressed(More)
Video conferencing applications have significantly changed the way people communicate over the Internet. Web Real-Time Communication (WebRTC), drafted by the World Wide Web Consortium (W3C) and Internet Engineering Task Force (IETF) working groups, has added new functionality to the web browsers, allowing audio/video calls between browsers without the need(More)
In this paper, we propose a dynamic adaptive rate control system and its associated rate-distortion model for multiview 3D video transmission, which will improve the user's quality of experience in the face of varying network bandwidth. Our rate control system has been built on top of two state-of-the-art key technologies: High Efficiency Video coding(More)
Mono-modal biometric systems face many limitations such as noisy data, intra-class variations, distinctiveness, spoof attacks, non-universality, and unacceptable error rates. Working on enhancing the performance of a mono-modal biometric system may not be highly efficient and effective. A multimodal biometric system combines two or more biometric features(More)
In order to deal, as fast as possible, with available bandwidth variations in High Definition Video Conferencing over best-effort networks, we propose a Bayesian instantaneous end-to-end bandwidth change discovery mechanism. Most other congestion detection mechanisms use network parameters such as packet loss probability, round trip time or jitter. On the(More)