Baseline (sea)

Mathematical analysis

Materials science

Magnification

Artificial intelligence

Composite material

Virtual reality

Range (aeronautics)

Representation (politics)

View synthesis

Deep learning

Geology

Mathematics

Politics

Extrapolation

Political science

Stereo camera

Computer science

Computer graphics (images)

Oceanography

Rendering (computer graphics)

Computer vision

ACM Transactions on Graphics

The view synthesis problem---generating novel views of a scene from known imagery---has garnered recent attention due in part to compelling applications in virtual and augmented reality. In this paper, we explore an intriguing scenario for view synthesis: extrapolating views from imagery captured by narrow-baseline stereo cameras, including VR cameras and now-widespread dual-lens camera phones. We call this problem stereo magnification , and propose a learning framework that leverages a new layered representation that we call multiplane images (MPIs). Our method also uses a massive new data source for learning view extrapolation: online videos on YouTube. Using data mined from such videos, we train a deep network that predicts an MPI from an input stereo image pair. This inferred MPI can then be used to synthesize a range of novel views of the scene, including views that extrapolate significantly beyond the input baseline. We show that our method compares favorably with several recent view synthesis methods, and demonstrate applications in magnifying narrow-baseline stereo images.

Stereo magnification