Give correct answer with explaination. Dont provide AI generated answer.

5. Which of the following statement(s) about sum of squared differences (SSD) and normalized cross correlation (NCC) is(are) correct? (a) SSD cannot be negative value. (b) NCC cannot be negative value. (c) Compared to SSD, NCC is generally faster. (d) Compared to SSD, NCC is more robust (invariant) to local average intensity and contrast. (e) None of the above is correct. 6. Which of the following statement(s) regarding the hough transform is(are) correct? (a) All pixels belonging to the same line in the image space will correspond to the same point in the parametric space. (b) Hough transform cannot be used to detect vertical lines. (c) Hough transform can be used to detect ellipses. (d) When applying Hough transform for detection, noise detection can be countered by decreasing the threshold on the number of votes a valid model has to obtain. (e) None of the above is correct