B.E
Fifth Semester Examination,2009-2010
Computer Graphics (CSE-303-E)
Q.1 (a) What is the difference between raster scan CRT and vector scan CRT?
(b) Describe the function of plasma panel.
Q.2 (a) Write the steps required to draw a line from (x1,y1) to (x2,y2) using Bresenham’s line drawing algorithm.
(b) What is meant by anti aliasing? Explain various methods used to develop anti aliasing routines.
Q.3 (a)Explain the difference between parallel and perspective projection.
(b) Explain briefly:
(i) 3D-clipping
(ii) 3D-scaling
(iii) 3D-translation
Q.4 Using any of the line clipping algorithm, obtain the visible portion of the following line segment:
(i) P1=(0.5,0.4) and P2=(1.6,0.7)
(ii) P1=(0.4,-1.6) and P2=(0.4,2.7)
(iii) P1=(0.4,-1.6) and P2=(0.8,-2.7)
(iv) P1=(-2,-3) and P2=(3,5)
Q.5 (a) Explain depth buffer method for hidden surface detection.
(b) Explain Painter’s algorithm.
Q.6 (a) Describe the properties of B-spline curves.
(b) What are the basic difference between B-spline and Bazier curves?
Q.7 (a) How can an image be described as a function?
(b) What are the various techniques used for image processing?
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