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Explore View Morphing: Interpolating Images from Parallel Views

Join us for a deep dive into the fascinating world of view morphing, where we explore the process of generating in-between images from two rigid scene views. Our project aims to examine the principles of linear interpolation in 2D shape and color while ensuring physically correct view interpolations. The task involves prewarping, morphing, and postwarping techniques to produce valid camera transitions. The deadline for submissions is Wednesday night, with possible extensions until Friday night. Don't miss our extra office hour on Friday from 4-5 PM for assistance!

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Explore View Morphing: Interpolating Images from Parallel Views

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Presentation Transcript

  1. Announcements • Review on Thurs • Project 4 • due Wed night • no later than Friday night (with late days) • Extra office hour: Friday 4-5

  2. Photograph Photograph

  3. Virtual Camera Morphed View

  4. View Interpolation • Problem Statement • Input: two views of an unknown rigid scene • from unknown viewpoints • Output: in-between views from a virtual camera

  5. Image Morphing Photograph Photograph Photograph Morphed Image Photograph • Linear Interpolation of 2D shape and color

  6. Not quite... Image Morphing for View Synthesis? • We want physically-correct view interpolations • Can image morphing do this? • Goal: extend to handle changes in viewpoint • Produce valid camera transitions

  7. Special Case: Parallel Cameras LeftImage MorphedImage RightImage • Morphing parallel views new parallel views • Linear image motion linear camera motion • Works because projection matrices have a special form

  8. View Morphing in 3 Steps Input Output Input

  9. View Morphing in 3 Steps • 1. Prewarp • align views

  10. View Morphing in 3 Steps • 1. Prewarp • align views • 2. Morph • move camera

  11. View Morphing in 3 Steps • 1. Prewarp • align views • 2. Morph • move camera • 3. Postwarp • point camera

  12. Corrected Photographs Face Recognition

  13. Videos • View morphing • Blanz & Vetter (SIGGRAPH 99) • MIT single view (SIGGRAPH 01) • Yu inv-radiosity (SIGGRAPH 00) • Debevec relight (SIGGRAPH 02) • Video rewrite (SIGGRAPH 97) • Vision-based pong (Seitz tape) • Debevec IBMR in art & cinema tape • Debevec face relighting demo

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