NPTEL Digital Image Processing Week 3 Assignment Answers 2024
1.
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2.
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3. How many cameras are required to find 3-D point using image coordinates of camera?
a) Atleast 1
b) Atleast 2
c) Atleast 3
d) Atleast 4
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4.
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5. Two identical cameras having focal length of 0.04m are used for stereo imaging. If the camera
displacement along X axis is 6.0 cm, left image point corresponding to a world point W is (0.2 mm.
0.4 mm) and the corresponding right image point is (0.4 mm, 0.4 mm), find out the 3-D location of
W with respect to a world coordinate system aligned with the coordinate system of the left camera.
a) (-60cm, -90cm, 1240 cm)|
b) (6cm, 12cm, -1196cm) |
c) (бет, 9cm, 1204cm) |
d) (-6cm, -9cm, 120.4cm) |
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6. Which of the following deals with the conversion of three-dimensional world co-ordinate to two
dimensional image?
a. Perspective Transfomation
b. Rotation
c. Linear Transformation
d. Non-linear mapping
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7. Which of the following is correct?
I. Perspective transformation is one to one mapping.
II. Perspective transformation is many to one mapping.
III. Geometrical transformations are commutative.
a) Only I
b) Only II
c) I and III
d) Il and III
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8. For a camera with focal length of 0.10, find out the locus of the points which will be imaged at
location (0.25, 0.5) on the Image plane. Assume the camera coordinate system and world coordinate system to be perfectly aligned.
a) X=-0.5 + 5Z, Y = -0.25 + 2.52
b) X=0.5 – SZ, Y = 0.25 – 2.52
c) X = 0.25 – 2.5Z, Y = 0.5 – 52
d) X = 0.5 – 10Z, Y = 0.5 – 10Z
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9.
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10.
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