B.TECH - Semester 7 computer graphics Question Paper 2019 (jun)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Cathode Ray Tube is called Refresh CRT. Why?
- Explain Bresenham's Line Drawing Algorith for $|m|<1$.
- "Recursive boundary fill Algorithms may not fill regions correctly if some interior pixels are already displayed in the fill colour". Justify.
- How can we improve the performance of DDA Algorithm?
- Explain the significance of a homogeneous coordinate system.
- How do we calculate the intersection points using Cohen Sutherland line clipping algorithm?
- Explain vanishing points.
- How does scaling w.r.t a point $p(x, y, z)$ be defined in terms of scaling w.r.t origin?
- What is z-buffer algorithm?
- What are edge detectors? Explain any one. ( $\mathbf{1 0} \boldsymbol{\times} \mathbf{4} \boldsymbol{=} \mathbf{4 0}$ Marks) P.T.O. Answer one full question from each Module.
- (a) Illustrate Midpoint circle algorithm using centre $(10,5)$ and radius 5.
- (b) What is the working principle of a plotter?
- (a) Compare Flood Fill and Boundary Fill algorithms.
- (b) What are the advantages and disadvantages of DDA line drawing algorithm?
- (a) Explain Sutherland Hodgeman polygon clipping algorithm.
- (b) What is order of transformation? Why is it important for 2D and 3D?
- (a) Explain the 2D transformations Scaling, Rotation and Reflection. Write the homogeneous matrix for each
- (b) Compare object space method and image space method.
- (a) Explain Scan line algorithm.
- (b) Explain connected component labelling algorithm.
- (a) Explain any one surface detection technique.
- (b) Explain Spline representation.