Winter Examination Period – January 2023 – Semester A
计算机视觉final代写 Calculators are permitted in this examination. Please state on your answer book the name and type of machine used.
ECS709P INTRODUCTION TO COMPUTER VISION
Duration: 2 hours
This is a 2-hour online exam, to be completed during a fixed 4-hour window.
You MUST submit your answers before the exam end time.
All instructions and guidelines from the exam page should be followed.
This is an open-book exam and you may refer to lecture material, text books and online resources. The usual referencing and plagiarism rules apply, and you must clearly cite any reference used. 计算机视觉final代写
Calculators are permitted in this examination. Please state on your answer book the name and type of machine used.
Answer ALL questions. Your answers have to be typed.
You MUST adhere to the word limits specified in the questions. Failure to do so will lead to those answers not being marked.
YOU MUST COMPLETE THE EXAM ON YOUR OWN, WITHOUT CONSULTING OTHERS.
Question 1
Consider an autonomous vacuum cleaner (a battery powered robot) equipped with a camera. The robot minimises the length of its path to cover the whole floor of an unknown room, which contains a table, four chairs, a sofa and two book shelves.
(a) Describe a computer vision pipeline that produces a map of the room to enable the vacuum cleaner to autonomously navigate the available space. Discuss the main design choices.[15 marks]
(b) Consider a computer vision pipeline that uses local image features: discuss the main properties of such features for the robot to determine when it approaches a point (a place) that it had previously visited.[15 marks] 计算机视觉final代写
(c) Describe how to generate a suitable low-complexity descriptor to reduce energy consumption for the task of maching local image features across frames. Discuss the choice of the matching (distance) function.[10 marks]
Answer Question 1 with at most 1000 words. A diagram or illustration is considered to be equivalent to 100 words. An equation is considered to be equivalent to 10 words.
Question 2 计算机视觉final代写
Consider a small drone equipped with a top-down looking camera for monitoring the terrain and human activities.
(a) Discuss what texture descriptors are suitable for a computer vision pipeline that distinguishes different land types. Motivate your choices.[10 marks]
(b) Discuss what texture descriptors are suitable for a computer vision pipeline that distinguishes different types of agricultural vegetation. Motivate your choices and contrast them with those in your answer to Question 2(a).[10 marks]
(c) Discuss a computer vision pipeline that recognises roads and rivers, and that identifies (labels) them consistently over time. Motivate your choices.[10 marks]
Answer Question 2 with at most 1000 words. A diagram or illustration is considered to be equivalent to 100 words. An equation is considered to be equivalent to 10 words.
Question 3 计算机视觉final代写
Consider a camera worn on the chest by a police officer walking slowly through Trafalgar Square on a cloudy morning.
(a) Describe a computer vision pipeline that counts the number of people the police officer encounters during any 2-minute intervals. Discuss your choices and their potential limitations.[10 marks]
(b) Discuss the challenges that the viewpoint of the body-worn camera (which is chest mounted) introduces for the pipeline described in your answer to Question 3(a).List typical errors you expect to occur.[10 marks]
(c) Explain how to evaluate the accuracy of the results by numerically evaluating the errors generated by the computer vision pipeline described in your answer to Question 3(a).[10 marks]
Answer Question 3 with at most 1000 words. A diagram or illustration is considered to be equivalent to 100 words. An equation is considered to be equivalent to 10 words.
