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Koohi, Mahdi
- Satellite Images Edge Detection Based on Morphology Models Fusion
Abstract Views :466 |
PDF Views:119
Authors
Affiliations
1 Department of Electrical Engineering, Islamshahr Branch, Islamic Azad university, Tehran, IR
1 Department of Electrical Engineering, Islamshahr Branch, Islamic Azad university, Tehran, IR
Source
Indian Journal of Science and Technology, Vol 5, No 7 (2012), Pagination: 2997-3000Abstract
One of the first steps of feature extraction is edge detection. There are various methods for edge detection such as sobel operator, log method and canny operator but with disadvantages (create noise, image smoothing and discontinuous edge detected). We present an improved method for edge detection. In this method, edge detected by morphology's operator and their combination and with the use of various structure elements of images in satellite and remote sensing.Keywords
Satellite, Image Processing, Edge Detection, Multi Spectral ImagesFull Text
References
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- CANTY (2002) Digital processing of multispectral images. Lecture Notes, Centerfor Remote Sensing on Land Appl., Univ.of Bonn.
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- A Simulation Environment for Network Processor Based on Simultaneous Multi Thread Architecture
Abstract Views :499 |
PDF Views:97
Authors
Affiliations
1 Department of Electrical Engineering, Islamshahr Branch, Islamic Azad university, Tehran, IR
2 Department I.E Engineering Sience&Technology, Mazandaran university, Mazandaran, IR
3 Department of electrical engineering, East Tehran Branch IslamicAzad University, Tehran, IR
1 Department of Electrical Engineering, Islamshahr Branch, Islamic Azad university, Tehran, IR
2 Department I.E Engineering Sience&Technology, Mazandaran university, Mazandaran, IR
3 Department of electrical engineering, East Tehran Branch IslamicAzad University, Tehran, IR
Source
Indian Journal of Science and Technology, Vol 5, No 10 (2012), Pagination: 3384-3389Abstract
This study is centered on the architectural efficacy of network processors based on simultaneous multi thread (SMT) architecture that support multiple active concurrent hardware threads at the same time with the goal of sharing processor resources such as functional units and memory. This thread-level-parallelism can be exploited in packet processing devices called network processors. The programs running on network processors have different characteristics depending on where the processor is used and the input workload. In this paper , we introduce our simulation environment, called SNP (Simulator for Network Processor), for simulating a typical SMT network processor which includes a connected network controller and a packet generator. The simulator presented in this study is a process based "simulator for Network processor" (SNP) usable for different modes and applications based on "clock - by - clock" method and is described according to SMT Structure. The simulator architecture is performed by C++ language optimized as efficient as possible. Such simulator is similar with simple scalar simulator.Keywords
Network Processor, Router, Packet, Simulator, Architectural EfficacyFull Text
References
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- Jing Fu Hagsand (2005) Designing and evaluating network processor applications. Workshop on high performance switching and routing. Institute of Technol. Kista, Sweden. pp:142-146.
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- Spalink T, Karlin S, Peterson L and Gottlieb Y (2001) Building a robust software-based router using network processors. Proc. of the 18th ACM Symposium on Operating Systems Principles (SOSP01), Chateau Lake Louise, Banff, Alberta,Canada. October. pp:216-229,
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- Wolf Tilman, Franklinmark E. Ayguade, Valero M and Navaux P (2006) A simulator for SMT architectures: Evaluating instruction cache topologies. 12th Symposium on Computer Architecture and High Performance Computing. pp: 279- 286.
- Object Tracking Based on Estimation Mesh Method
Abstract Views :332 |
PDF Views:87
Authors
Affiliations
1 Department of Electrical Engineering, Islamshahr Branch, Islamic Azad university, Tehran, IR
1 Department of Electrical Engineering, Islamshahr Branch, Islamic Azad university, Tehran, IR
Source
Indian Journal of Science and Technology, Vol 5, No 1 (2012), Pagination: 1851-1854Abstract
Object tracking is one of the most important problems in modern visual systems and researches are continuing their studies in this field. Mesh Method is regarded complicate for object tracking accompanied with many controversies and obstacles; but it may eliminate many problems and challenges in this field. In this tracking process, an effective and new algorithm is used for designing a concept based triangular two dimensional mesh considering locally equiangular property. This algorithm includes a non smooth selection process of a complex of nodes with a simple and fast star polygon based Triangulation methods which can cover all inter nod regions The basic point of this algorithm is to select a complex of nodes adapting mesh cells with the object borders and making a suitable correlation between nodes density and the level of local movements' changes. This algorithm is described and analyzed in detail and implemented in real time situation.Keywords
Tracking, Mesh Method, Prediction the Object Region, Estimation ObjectFull Text
References
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