lec16

lec16 - Lecture 16: October 18, 10 Exam 1: to be graded by...

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USC CS574: Computer Vision, Fall 2010 Copyright 2010, by R. Nevatia 1 Lecture 16: October 18, 10 • Exam 1: to be graded by Monday, Oct 25 • Exam 2: Dec 1, class time (lecture 2 notes show wrong date) • Both Exam 1 and 2 count for 30% of the grade each – Lecture 2 notes have an error, Lecture 1 had correct info • Schedule: – No class on Wednesday, Oct 27; make up on Friday Oct 29, 10:30 to 11:50, Studio D • Last Class – Introduced Active Ranging methods • Today’s objective – More on active range – Range data processing
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USC CS574: Computer Vision, Fall 2010 Copyright 2010, by R. Nevatia 2 Active Ranging • Silva-Bellon Tutorial
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USC CS574: Computer Vision, Fall 2010 Copyright 2010, by R. Nevatia 3 Active Ranging • Problem of depth measurement is greatly simplified by active control of illumination • LADAR: like RADAR, but uses visible light wavelength – Measure time for light to reach object and come back – Practical difficulties: times to be measured are very short – Techniques using phase differences or frequency shifts
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USC CS574: Computer Vision, Fall 2010 Copyright 2010, by R. Nevatia 4 Result of a Commercial Scanner
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lec16 - Lecture 16: October 18, 10 Exam 1: to be graded by...

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