MIT 6.801 Machine Vision, Fall 2020 Instructor: Berthold Horn View the complete course: https://ocw.mit.edu/6-801F20 YouTube Playlist:    • MIT 6.801 Machine Vision, Fall 2020   This lecture discusses the photometric stereo problem, estimating motion graphically by finding in spatial derivative space. Following this, we discuss concepts from photometry and introduce the use of lenses. License: Creative Commons BY-NC-SA More information at https://ocw.mit.edu/terms More courses at https://ocw.mit.edu/ Support OCW at http://ow.ly/a1If50zVRlQ We encourage constructive comments and discussion on OCW’s YouTube and other social media channels. Personal attacks, hate speech, trolling, and inappropriate comments are not allowed and may be removed. More details at https://ocw.mit.edu/comments. Speakers: Berthold Horn