به نام خدا
Title: Video Based Palmprint Recognition
Authors: Chhaya Methani and Anoop M Namboodiri
Abstract: The use of camera as a biometric sensor is desir-able due to its ubiquity and low cost, especially for mo-bile devices. Palmprint is an effective modality in suchcases due to its discrimination power, ease of presen-tation and the scale and size of texture for capture bycommodity cameras. However, the unconstrained na-ture of pose and lighting introduces several challengesin the recognition process. Even minor changes in poseof the palm can induce significant changes in the vis-ibility of the lines. We turn this property to our ad-vantage by capturing a short video, where the naturalpalm motion induces minor pose variations, providingadditional texture information. We propose a method toregister multiple frames of the video without requiringcorrespondence, while being efficient. Experimental re-sults on a set of different 100 palms show that the use ofmultiple frames reduces the error rate from 12.75% to4.7%. We also propose a method for detection of poorquality samples due to specularities and motion blur,which further reduces the EER to 1.8%.
Publish Year: 2010
Publisher: ICPR - IEEE
Number of Pages: 4
موضوع: تشخیص اثر کف دست
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به نام خدا
Title: Feasibility of SNMP OID compression
Authors: Hari TS Narayanan a, , Geetha Ilangovan a , Sumitra Narayanan b
Abstract: Simple network management protocol (SNMP) object identi?er (OID) compression can improve bandwidth usage and response time. The current literature includes several OID compres- sion algorithms to reduce redundancy in SNMP protocol data units (PDUs). The overhead of OID compression could outweigh the bene?ts it offers if its tradeoffs are not well understood. The main objective of this paper is to investigate the OID compression as a viable feature for SNMP libraries. This is done by adding an OID compression algorithm to Net-SNMP, which is one of the popular open source implementations of the SNMP framework. Change to image size, lines of code added, complexity of compression code, the effect of compression on response time, and testing effort required are the parameters presented to understand the viability of OID compression.
Publish Year: 2013
Number of Published in: Information Sciences - Science Direct
Pages: 8
موضوع: فشرده سازی تصویر، فشرده سازی داده ها
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به نام خدا
Title: Interface-Based Object-Oriented Design with Mock Objects
Authors: Nandigam, J.; Gudivada, V.N.; Hamou-Lhadj, A.; Yonglei Tao
Abstract: Interfaces are fundamental in object-oriented systems. One of the principles of reusable object-oriented design, according to Gamma et al., is program to an interface, not an implementation. Interface-based systems display three key characteristics - flexibility, extensibility, and pluggability. Designing with interfaces is therefore a better way of building object-oriented systems. Getting students in introductory software engineering and design courses to program to interfaces and develop interface-based systems is a challenge. This paper presents our experiences with the use of mock objects to promote interface-based design and effective unit testing in software engineering and design courses.
Publish Year: 2009
Publisher: ITNG - IEEE
Number of Pages: 6
موضوع: طراحی و تحلیل شی گرا
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به نام خدا
Title: Low Complexity Routing Algorithm for Rearrangeable Switching Networks
Authors: Amitabha Chakrabarty Martin Collier
Abstract: Rearrangeable switching networks have been a topicof interest for a long time among the research community.Routing algorithms for this class of networks have attractedlots of researchers along with other related areas, such asmodiï¬cation of the networks structure, crosspoints reduction etc.In this paper a new routing algorithm is presented for symmetricrearrangeable networks built with 2 × 2 switching element. Anew matrix based abstraction model is derived to determineconflict free routing paths for each input-output request. Eachstage of a network is mapped into a set of sub-matrices andnumber of matrices in each stage correspond to number ofsubnetworks in that stage. Once the input permutation is given,matrix cells are populated with binary values depending onthe position of the switching elements in the actual hardwareand their mapped matrix cells. These binary values control therouting decision in the underlying hardware. This new routingalgorithm is capable of connection setup for partial permutation,m = ÏN , where N is the total input numbers and m is thenumber of active inputs. Overall the serial time complexity ofthis method is O(N logN)1 and O(mlogN) where all N inputsare active and with m < N active inputs respectively. Thetime complexity of this routing algorithm in a parallel machinewith N completely connected processors is O(log2N). With mactive requests the time complexity goes down to O(logmlogN),which is better than the O(log2m + logN), reported in theliterature for 212[(log2Nâˆ_4logN)12âˆ_logN ] ≤ Ï â‰¤ 1. Later half ofthis paper demonstrates how this routing algorithm is applicablefor crosstalk free routing in optical domain.
Publish Year: 2013
Publisher: AINA - IEEE
Number of Pages: 8
موضوع: الگوریتم مسیر یابی، شبکه های کامپیوتری
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به نام خدا
Title: Bricolage: Example-Based Retargeting for Web Design
Authors: Ranjitha Kumar Jerry O Talton Salman Ahmad Scott R Klemmer
Abstract: The Web provides a corpus of design examples unparalleled in human history. However, leveraging existing designs to produce new pages is often difficult. This paper introduces the Bricolage algorithm for transferring design and content between Web pages. Bricolage employs a novel, structured-prediction technique that learns to create coherent mappings between pages by training on human-generated exemplars. The produced mappings are then used to automatically transfer the content from one page into the style and layout of an-other. We show that Bricolage can learn to accurately repro-duce human page mappings, and that it provides a general, efficient, and automatic technique for retargeting content between a variety of real Web pages.
Publish Year: 2011
Publisher: CHI - ACM
Number of Pages: 20
موضوع: طراحی صفحات وب
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