Lecture 4: Computational Illumination: dual photography, relighting - Part 1 | Summary and Q&A

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February 21, 2023
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Lecture 4: Computational Illumination: dual photography, relighting - Part 1

TL;DR

Dual photography is a technique that involves capturing light with a camera and a projector, allowing for the creation of unique images.

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Key Insights

  • 🙂 Dual photography involves capturing light with a camera and a projector to create images from two perspectives.
  • 👻 The technique allows for the creation of unique images and special effects, providing a new perspective in photography.

Transcript

The following content is provided under a Creative Commons license. Your support will help MIT OpenCourseWare continue to offer high-quality educational resources for free. To make a donation or to view additional materials from hundreds of MIT courses, visit MIT OpenCourseWare at ocw.mit.edu. RAMESH RASKAR: So we'll finish up the computational ill... Read More

Questions & Answers

Q: What is dual photography?

Dual photography is a technique that involves capturing light with a camera and a projector to create images from two perspectives.

Q: How does dual photography work?

Dual photography works by swapping the roles of the camera and the projector. The camera captures the projected light, and the projector emits the light that would have been captured by the camera.

Q: What are the benefits of dual photography?

Dual photography allows for the creation of unique images and special effects. It also provides a new perspective and can be used for creative purposes in photography.

Q: Can dual photography be used for other purposes?

Yes, dual photography has potential applications beyond photography, such as in computer graphics and virtual reality. It offers a new way of capturing and understanding light.

Summary & Key Takeaways

  • Dual photography involves capturing light with a camera and a projector to create images from two perspectives.

  • By swapping the roles of the camera and the projector, the technique allows for the creation of images that appear as if the camera was placed at the projector.

  • It is possible to capture complex scenes and create special effects using dual photography.

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