Informatics Publishing Limited

N. M. Masoodhu Banu ¹, S. Sujatha ²

Affiliations
1 Department of Electronics and Communication Engineering, Sethu Institute of Technology, Virudhunagar - 626115, IN
2 Department of Computer Applications, Anna University, BIT Campus, Trichy - 620024, IN

Abstract

In this paper a comprehensive survey of the state of the art lossy and lossless techniques available in the literature has been presented and the merits and pitfalls of each technique are analyzed. This study congregates the pioneer works in two dimensional (2D) compression techniques, both in pixel domain and transform domain. The evolution of compression of three dimensional (3D) medical images from 2D compression has also been discussed. Compressed medical image has to be both diagnostically lossless and less bandwidth in addition to visual quality. Region of Interest coding (ROI) which achieves diagnostic quality image with less bandwidth has been explored. In spite of proven compression technologies, only the lossless compression has been used widely around the world and the reason for the same has been investigated. In addition it also investigates several factors; why one needs to go for lossy compression.

Keywords

3D Medical Image, Context based Boding, DCT, DWT, Predictive Coding, VOI

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N. M. Masoodhu Banu ¹, A. Merline ², T. Sujithra ³

Affiliations
1 Biomedical Engineering, Vel Tech Rangarajan & Dr.Sagunthala R&D Institute of Science and Technology, Chennai, IN
2 A. Merline, Electronics and Communication Engineering, Sethu Institute of Technology, IN
3 S.R.M Institute of Science and Technology, IN

Abstract

This paper describes the development of POGIL based instructional design classes for complex engineering problems described in the Program Outcomes (PO) of National Board of Accreditation (NBA), India accreditation criteria. Embedded system Design course in Electronics and Communication Engineering course (ECE) is considered for experimentation. Subsequently it aims at providing students and interested fresh faculty an opportunity to design and build the project on their own. The aim of the project is to design a round robin based embedded system where the tasks are of their choice. To structure and complete their design part, both students and faculty were posed with a large number of questions. They were asked to refer literature and data sheets for their work. Once the design part was reviewed to avoid critical errors, students built their project and compared solutions to theoretical predictions. Feedback was collected and analysed to determine the effectiveness of POGIL in PO attainment. The reflections given by both faculty and students were positive, in particular students found that solving complex engineering problems are quite difficult and challenging compared to other prescribed book end exercises but POGIL helped them to be more constructive to build their knowledge.

Keywords

POGIL, Descriptors, Personification.

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