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Previous Year Exam Questions for AERIAL REMOTE SENSING and PHOTOGRAMMETRY - ARSP of 2011 - HITECH by Narayan Sethy

  • Aerial Remote Sensing and Photogrammetry - ARSP
  • 2011
  • PYQ
  • Civil Engineering
  • B.Tech
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DEPARTMENT O F CIVIL ENGINEERING C O L L E G E OF ENGINEERING ANNA UNIVERSITY, CHENNAI - 600 025 END SEMESTER EXAMINATION APRIL 2011 SIXTH SEMESTER GEOINFORMATICS (R 2008) Gl 9354 - PHOTOGRAMMETRY II Time : 3.00 hrs Max. Marks : 100 Instructions: 1. Answer all questions under PART-A and PART-B respectively 2. Assume suitable data wherever necessary 3. Draw neat sketches wherever required PART-A 1 0 x 2 = 20 Marks 1. What are the components of Analog Stereo Plotter? 2. Differentiate between Analog Plotters and Analytical Plotters. 3. What are the advantages of orthophoto? 4. Bring out the differences between Rectification and Differential Rectification. 5. What are the advantages of aero triangulation? 6. What is an Universal Plotter? 7. Derive the equation for the determination of horizontal and vertical angle from a terrestrial photo. 8. What are the uses of close range photogrammetry? 9. What are the different sources of digital images? 10. Differentiate between analytical and digital photogrammetry. , PART - B 11. a. 12. a. 5 x 16 = 80 Marks Discuss in detail about online orthophoto production. 10 What are the advantages of offline orthophoto production 4 What are the viewing Systems Employed in stero plotters? 2 Explain in detail about Numerical Relative Orientation. Explain the steps involved in interior orientation. (or) 12 4

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b. i. After relative orientation, the base components are b =225mm; b =-8.16mm; b =6.76mm. The data for two control points are as follows. x y 10 z Point Ground Ground 1 2 X(m) 670296.3 670766.9 Y(m) 223343.7 223347.2 Ground Z <m) 1243.66 1275.24 Model Model Model X y z (mm) 302.55 325.70 (mm) 716.25 318.02 (mm) 144.66 172.22 The map scale is 1/1250. Compute the base components necessary to bring ihe model to map scale. ii. Outline the steps of two projector method of relative orientation. i. Explain in detail about semi analytical aero triangulation. ii. Explain about collinearity condition. 6 12 4 (or) i. i. Derive and explain about three dimentional conformal co-ordinate transformation. 16- Two horizontal terrestrial photos were taken with a phototheodolite having a focal length of 164.95mm. The horizontal base line length was 76.2m and the exposure station elevations were 268.95m and 260.73m above mean sea level for the left and right exposures, respectively. Angles 6 and 5' were measured as 69° 30' and 66° 10', respectively. Images of object point A were measured on both photos with the following results: x =46.23mm, y =41.07mm, x' =-17.83mm, and y' =48.20mm. Calculate the X and Y coordinates of point A in a rectangular coordinate system with origin at second exposure station and the X axis in the plane of the base line. 12 a a ii. a a Differentiate between photo theodolite and sterometric camera. 4 (or) b. 15. a. i. Derive parallax equation for close range photogrammetry. ii. Discuss about photogrammetry. range 8 i. Explain about configuration and requirement of pheripheral devices for digital photogrammetric work station. 12 ii. What are the advantages of digital photogrammetry? establishing control for the close 8 4 (or) b. i. Write short notes on a) Automatic measurement of fiducial marks 8 b) Automated surface modelling 8

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