Automatic Photo Pop-up

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Automatic Photo Pop-up

• Derek Hoiem
• Alexei A. Efros
• Martial Hebert

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ABSTRACT

• Presents a fully automatic method for creating
• a 3D model from a single photograph.
• Algorithm labels regions of the input image into
  coarse categories ground, sky, and
  vertical.
• Labels are then used to cut and fold the image
  into a pop-up model using a set of simple
  assumptions.
• The algorithm is not expected to work on every
  image.

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OUTLINE

• INTRODUCTION
• RELATED WORK(??)
• APPROACH
• EXTENDING TO VIDEOS
• RESULTS

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INTRODUCTION

• Advances in the field of image-based rendering
  during the past decade.
• The method for creating virtual walkthroughs that
  is completely automatic and requires only a
  single photograph as input.
• The approach is similar to the creation of a
  pop-up illustration in a childrens book.

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RELATED WORK
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APPROACH
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APPROACH

• A. Handling the Illuminant Color in Images
• A fundamental limitation of our previous
  algorithm is that it required target images to be
  taken under the D65.
• We apply the color-by-correlation method to
  estimate the illuminant color.

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APPROACH

• B. Color Naming Method
• We denote the categorization as the color
  naming of a pixel.
• The color naming method consists of two steps
• initial color naming and fuzzy color naming.
• Initial color naming, for example, if the color
  of a pixel is categorized in the first BCC, then
  the vector becomes
  
• In the initial color naming process, each pixel
  completely belongs to one of the 11 BCCs.
• Fuzzy color naming is done to avoid
  pseudo-contours.

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APPROACH

• B. Color Naming Method

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APPROACH

• C. Computing Corresponding Color Values in the
  Chromatic Categories

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APPROACH

• D. Computing Corresponding Color Values In the
  Achromatic Categories
• E. Transferring Colors

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EXTENDING TO VIDEOS

• A. Color Naming Method

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EXTENDING TO VIDEOS

• B. Computing Corresponding Color Values in the
  Chromatic Categories

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EXTENDING TO VIDEOS

• C. Computing Corresponding Color Values in the
  Achromatic Categories
• D. Transferring Colors

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RESULTS
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RESULTS
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RESULTS
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RESULTS
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RESULTS
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Thank you for your listening!
2008.05.21