International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 04 | Apr -2017
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e-ISSN: 2395 -0056 p-ISSN: 2395-0072
Augmented Reality System for Engineering Graphics Visualization in Education Pallavi Aher, Mayuri Nere, Jai Nirhali, Aishwarya Thakur Student ,Dept. of IT Engineering, PVG's COE Nashik, Maharashtra ,India Student ,Dept. of IT Engineering, PVG's COE Nashik, Maharashtra ,India Student ,Dept. of IT Engineering, PVG's COE Nashik, Maharashtra ,India Student ,Dept. of IT Engineering, PVG's COE Nashik, Maharashtra ,India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract -
This paper deals with engineering graphics and 3D visualization are key elements in most scientific and technical disciplines. In engineering education, the development of spatial abilities has been acknowledge by many authors as a factor that is strongly related to higher-level reasoning skills, critical thinking, creativity, and success in STEM(science, technology, engineering and mathematics) fields. Spatial visualization is a term that refers to the aptitudes needed to mentally process three-dimensional information. It is a high level learning objectives often seen in engineering graphics curricula. Although different strategies can be used to improve visualization skills(sketching, physical models, computer graphics and descriptive geometry), these abilities are often developed indirectly by studying traditional engineering graphics topics such as orthographic projection and pictorials. Key Words: Augmented reality, Engineering graphics, Marker detection, Line detection, Marker-based tracking.
1.INTRODUCTION Augmented reality in engineering graphic system allows users to view a 3-dimensional structure of any 2-dimensional view by using augmented reality to display the output 3d model onto the screen using simple techniques. the study shows that humans are more comfortable to study things which they can see with their eyes rather than hearing and imagining, therefore applying these concept to learn engineering graphics our system helps the user to actually see what they are supposed to do. the main objective of augmented reality in engineering graphics system is to enhance the ability of a student to understand and implement the concept of engineering graphics, students can turn the pages of these books, look at the problem inside the book, and finish their assignment much the way they are reading and writing on an ordinary sheet. However, if they focus a camera on the marker, a 3d virtual models pop-up in the computer screen over the real pages. The virtual models superimposed upon the real pages will serve as the tip for imagining the relationship between the 3d geometry and their 2d projections.
2. EXISTING METHODOLOGY Authors have develop an AR based support system for teaching hand drawn machine drawing used for training of sketching and orthographic projection drawing in which users can watch virtual object from various orientation. This system develop using ARToolkit which overlays a virtual mechanical 3d object recognized by a cubic AR marker on the screen[15]. The position and the orientation of the AR marker define the position and orientation of the virtual object. During the registration process direction and distance of virtual object from the camera is calculated through recognizing edges of an AR marker process. User can watch 3d object in various aspect like front, back, top, under, left and right through rotating the cubic AR marker. Researchers have built advanced gardening support system called the Smart Garden(SG) which provides information about what to plant where. Guides user of planting seedlings where different symbols on the screen indicated steps to be taken also virtual plants are overlayed on real image which helps growers to understand he outcome of their decisions intuitively. SG users NyARToolKit for processing. Fiducial marker, a square black frame with unique symbol inside, is used which differentiate markers. Fiducial marker is recognized in the image captured by the camera and the positions and orientations of the markers relative to the camera are calculated. In AR applications, the students can interact with real, physical objects around them while virtual models are being added to these world. Using these technique, they have a better perception if the objects they observe. The same mental rotation test was repeated with AR model to investigate the benefits of AR model in assisting the students graphic and spatial cognition skills. The questions of the AR
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