Image Registration — MCQs | Digital Image Processing

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1. Which process aligns two or more images of the same scene taken at different times or viewpoints?



2. What is the main goal of image registration?



3. Which of the following is a key step in image registration?



4. Which of the following methods uses pixel intensity values directly for registration?



5. Which technique is commonly used in feature-based registration?



6. Which transform is used to align images through translation, rotation, and scaling?



7. Which type of registration uses control points to estimate transformation parameters?



8. Which metric is often used to evaluate similarity in intensity-based image registration?



9. Which image registration method is more robust to illumination changes?



10. Which of the following features is commonly used in medical image registration?



11. What is the purpose of resampling in image registration?



12. Which interpolation method is most accurate but computationally expensive?



13. Which of the following is not a typical transformation model in registration?



14. Which transformation includes only rotation and translation?



15. What is the role of optimization in image registration?



16. Which of the following is a non-rigid transformation?



17. Which algorithm is commonly used for optimizing registration parameters?



18. What does the term ‘fixed image’ refer to in registration?



19. Which term is used for the image to be aligned to the fixed image?



20. Which domain is used in frequency-based registration?



21. Which technique is useful for registering satellite images?



22. What is the purpose of using control points in image registration?



23. Which method is most sensitive to intensity variations?



24. Which combination is often used for multimodal registration?



25. Which one is not a similarity measure in registration?



26. Which method is most suitable for registering images with large deformations?



27. Which approach combines both features and intensities?



28. Which method is used for sub-pixel accuracy in registration?



29. Which type of image registration uses anatomical landmarks?



30. In image registration, transformation parameters are typically estimated using:



31. Which registration method can handle different imaging modalities like CT and MRI?



32. Which feature descriptor is invariant to scale and rotation in registration?



33. Which of the following can improve robustness in feature-based registration?



34. What kind of transformation can bend and twist the image during registration?



35. Which registration method uses block matching?



36. Which function is minimized during optimization in registration?



37. Which of the following is not required in image registration?



38. Which metric is used in mono-modal image registration?



39. Which registration step involves rotating and translating the moving image?



40. Which algorithm is useful for finding keypoints in registration?



41. Which step follows similarity computation in the registration pipeline?



42. Which registration type is used when both images come from the same sensor?



43. Which tool helps in evaluating registration visually?



44. Which type of transformation preserves angles and lengths?



45. What can lead to registration failure?



46. Which operation is required after applying a transformation to an image?



47. Which technique can handle images with non-linear distortions?



48. What is the first step in any image registration pipeline?



49. Which technique helps improve accuracy in automated registration?



50. Which type of registration is typically used in aligning pre-operative and intra-operative medical images?



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