Computer Science 188 - Fall 1998 - Malik - Midterm 1

Computer Science 188 - Fall 1998 - Malik - Midterm 1 - CS...

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CS 188, Midterm Exam, Fall 1998 CS 188, fall/1998 Midterm Exam Problem #1 1. This problem is intended to test your understanding of how the information in the optical flow field can be used to control the movement of a robot. Assume that there is no rotation. (a) How can you determine the Focus of Expansion (FOE) and the time to collision (tau) from the flow field? (b) How would you use the FOE and tau variables for (a) lateral control (heading in a desired direction) (b) controlling braking behavior -- coming to a smooth stop at a desired location in front of you. (c) If you were asked to come to a stop at a fixed distance (say 100 feet) in front of your current position, could you do that using the information in the optical flow field? Problem #2 2. Caltrans has set up roadside cameras which can detect individual vehicles and measure their lengths. You have been hired to design a classifier for labeling each vehicle as a car or a truck (ignore other possible vehicle types such as motorcycles, buses etc) using length as a feature. You can assume
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This note was uploaded on 05/17/2009 for the course CS 188 taught by Professor Staff during the Spring '08 term at Berkeley.

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Computer Science 188 - Fall 1998 - Malik - Midterm 1 - CS...

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