Research Symposium-2011

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Browsing Research Symposium-2011 by Subject "Computing and Information Science"

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    Development of Fast and Low Cost vision-Based 3D Scanner for Surface Registration of 3d Shapes
    (Uva Wellassa University of Srilanka, 2011) Piyathilaka, J.M.L.C.; Ekanayake, R.M.T.C.B.
    Note: See the PDF Version A 3D scanner is a device that inspects three dimensional objects to collect data on its shape and possibly its appearance .The collected data can then be used to re-engineer, three dimensional models useful for wide variety of applications. Unlike conventional 2D scanners used in office environment which can only scan plane objects like images on paper, these devices are used extensively by the entertainment industry in the production of movies and video games. Other common applications of this technology include industrial design, orthotics and prosthetics, reverse engineering and prototyping, quality control/inspection and documentation of cultural artifacts. 3D scanning technology can be used to produce highly value added products in existing local industries. Potential uses of 3D scanning technology in the Sri Lankan industries are endless. Reconstruct replicas of precious artifacts, national monuments are possible applications. These replicated models have higher demand in local and international markets. Another application area is the garment industry. The 3D scanner enables us to examine the human body in ways never before possible, including the shape of a cross section, slice area, surface area, and volume. This not only makes the body measurement process much more convenient for the customer, it also estimates the need for changing rooms. This technology can be used to manufacture custom stitched highly value added garments for international markets. 3D scanning can also be used in quality control and inspection. It can precisely analyze the "as built" condition of parts after they have been manufactured. Typically, non- contact technology is used to quickly inspect the overall shape and size of parts, quickly detecting issues such as overall scale issues. 3D scanners existing in the market are in the range $100k to $400k. In our previous research (Ranasinghe et al., 2010) we developed a scanner projecting laser beam onto the object and capturing video sequence while rotating the platform via a stepper motor. Recorded video sequence is then processed to construct the 3D shape of the object. Main limitation of this project's outcome was that scanning process took more than 3 minutes to complete, dimensions of the object were not recorded and image processing and surface construction was done off-line. In the present research, we further developed the existing system in order to overcome these limitations. We introduced a spiral shaped platform that replaced the circular platform. Since the radius of the used spiral shaped platform changes as a function of rotation angle we were able to record the rotational angle real time by image processing the video. Also the known dimensions of the spiral shaped platform are used to calibrate the dimensions of the scanning object. Introduction of the spiral shaped platform reduced the scanning time considerably and allowed recording the dimension of the objects real-time.
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    Identification of Relationships between Firm Traits and Innovation Potential With Reference to Software Industry in Sri Lanka
    (Uva Wellassa University of Srilanka, 2011) Vijayanthi, W.A.U.; Weerakoon, W.M.P.G.C.
    Note: See the PDF Version According to Joseph Schumpeter (1950) the concept of "Creative Destruction" emphasizes that the introduction of new and better ways, products and services makes the previous ways, products and services obsolete. Consequently, the role of innovation appreciated as a key driver of the economic growth. In the organizational context, innovations may be associated with performance and growth through improvements in efficiency, productivity, competitive positioning, etc. All the organizations have to be capable of introducing innovations regardless of being technological firms or not. The term innovation refers to a new way of doing something. It may refer to incremental, radical, and innovative changes in thinking, products, processes, or organizations. Innovations are typically adding value to the existing operation of the business and create a positive impact towards the organization. The work environment of the firm, motivation towards innovation, experience of the business, number of and skills of employees of the business and all other financial and non-financial factors affect the ability of generating innovations. Researchers have argued on the relevance of various firm traits to innovative efforts and associated performance. Frequently considered firm traits include degree of diversification (Pascoe,1987), and Research and Development (R&D) ( Dujowich, 2007), Age of the firm, extent of local ownership, firm size, share of export in sales, type of ownership (Lee, 2004), firm turnover (Elj, 2009), firm size, ownership, R&D activities, patent (Hanel, 2002). According to Schumpeter (1942), large firms had become the drivers of the innovation in the US economy. In addition, capacity of a firm to be profitable from innovation might depend on its size and he claimed that large firms are more likely to innovate than small fi rms. This research supplemented the limited pool of current literature on firm traits and innovation potential in Sri Lankan context. Accordingly, the objectives of this study were to identify relationship between firm traits and innovation potential and to identify most critical factor which determines the innovation potential in Software industry in Sri Lanka.