Note: This is not a standard answer. There may be errors. It is just the result after checking it with your classmates. It is only shared. You are welcome to correct any mistakes.
The first unit
*1.10 Try to calculate the DE distance, D4 distance and D8 distance between the two pixels p and q in Figure 1.10
Second unit
*2.1 Try a list to compare the advantages and disadvantages of CCD, CMOS and CID.
2.2 If you use a 28mm focal length lens to shoot an object that is 10m away and 3m high, what is the image size of the object? If you change to a lens with a focal length of 200 mm, what is the image size?
2.3 gives the camera coordinates and image plane coordinates of the spatial point (-5m, -5m, 50m) after projection and imaging by a lens with a focal length of 50mm.
Unit 3
3.1 Assume an image as shown in Figure 3.1, and calculate the gradient map obtained by using the Robert Cross operator, the Prevet operator and the Sobel operator respectively (with 1 as the norm)
3.2 Use the two Laplacian operator templates shown in Figure 3.1.4 to process the image shown in Figure 3.1.
Unit 5
5.9 Assume an image has a grayscale distribution as shown in Figure 5.9, where p 1(z) corresponds to the target and p2(z) corresponds to the background. If P1=P2, find the best threshold to segment the target and background.
Unit 6
*6.1
(1) Try to explain why using the chain code starting point normalization method in Section 6.1.1 can make the resulting chain code independent of the starting point of the boundary? Calculate the starting point after normalizing the starting point of chain code 10767655433221. 2) Try to explain why the chain code rotation normalization method in Section 6.1.1 can be used to make the resulting chain code independent of the rotation of the boundary? Calculate the first-order difference of the chain code 2111010103030332323221.
6.2 gives the chain code of the target contour shown in Figure 6.2, as well as the chain code after normalization of the starting point and the chain code after normalization by rotation.
Unit 7
7.1 For the image in Figure 7.1.1(a), calculate the matrices P(0,1)P(1,0), P(1,1) and P(-1,1).
Unit 8
8.1 Try to calculate the appearance ratio, shape factor, eccentricity, sphericity and circularity of the octagon composed of discrete points in Figure 8.1.1
Unit 9
*9.2 In Figure 9.2.2, if the coordinate origin is set at the midpoint of the line connecting the two optical centers, try to write the expression about Z corresponding to Equation (9.2.4). If input=0.05m, B =O.4 m, x1=0.02m, x2=-0.03 m, calculate the × and Z coordinates of point W.
Unit 11
11.3 Try to compare the two methods of motion detection (motion detection using image differences, motion detection based on models). What are the advantages and disadvantages of each. Which situations are different methods suitable for?
11.6 Try to summarize and list the main steps and work of using Gaussian mixture model to calculate and maintain dynamic background frames.
Unit 15
15.7 Try list analysis to compare the advantages and disadvantages of several system models discussed in Section 15.3.
