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Vinayababu, M.
- Ad-Hoc Message Routing Algorithm for Bluetooth Nodes-Challenges and Design Approach
Authors
1 East West Institute of Technology, Bangalore, IN
2 Adhiyamaan College of Engineering, Hosur, IN
3 Bharatrathna Indira Gandhi College of Engineering, Solapur, IN
Source
Wireless Communication, Vol 3, No 3 (2011), Pagination: 177-182Abstract
Bluetooth has become an extremely popular technology in Wireless Personal Area Networking (WPAN), and is being extensively used for wide range of applications in which the communicating devices are in range of each other, forming a piconet. On the other front, Mobile Ad-hoc Networks (MANet) are being envisioned to provide a self-configuring network of randomly moving nodes, which would assist each other in increasing the range of the network and giving rise to a whole new set of applications. But a MANet routing system using Bluetooth devices poses a lot of challenges and not sufficient research work is yet available in this regard. In this paper the key challenges involved in Mobile Ad-hoc Networks (MANet) over Bluetooth are analyzed. Also, the characteristics of the Bluetooth technology that can be adopted to address the challenges are described. In addition, a design approach for an efficient mobile ad-hoc routing algorithm for Bluetooth nodes is presented.Keywords
Bluetooth, Ad-hoc Routing, JSR82, Inquiry, Unicast, Broadcast.- Automatic Text Extraction in a Complex Background and Different Font Styles Regions of Moving Videos
Authors
1 East West Institute of Technology, Bangalore, IN
2 Adhiyamaan College of Engineering, Hosur, IN
3 Bharatrathna Indira Gandhi College of Engineering, Solapur, IN
Source
Digital Image Processing, Vol 3, No 3 (2011), Pagination: 145-148Abstract
Efficient content based retrieval of image and video databases is an important emerging application due to rapid proliferation of image and digital video data on the internet and corporate intranets and exponential growth of video content in general. Text either embedded or superimposed within video frames is very useful for describing the semantic content of the frames, as it enables both keyword and free-text based search, automatic video logging, and video cataloging. Extracting text directly from video data becomes especially important when closed captioning or speech recognition is not available to generate textual transcripts of audio or when video footage that completely lacks audio needs to be automatically annotated and searched based on frame content.
Towards building a video query system, developed a scheme for automatically extracting text from digital image and videos for content annotation and robust text extract which can handle complex backgrounds in video frames, deal with different font sizes, font styles, and font appearances such as normal and inverse videos. The algorithm results in segmented characters from video frames that can be directly processed by an OCR system to produce ASCII text. Results from the experiments obtained from MPEG video streams demonstrate the good performance if our systems in terms of text identification accuracy and computational efficiency.