multi view geometry
Download
Skip this Video
Download Presentation
Multi-View Geometry

Loading in 2 Seconds...

play fullscreen
1 / 29

Multi-View Geometry - PowerPoint PPT Presentation


  • 131 Views
  • Uploaded on

Multi-View Geometry. Review: Pinhole Camera. Review: Perspective Projection. Review: Perspective Projection. Points go to Points Lines go to Lines Planes go to whole image or Half-planes Polygons go to Polygons. Perspective cues. Perspective cues. Perspective cues.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Multi-View Geometry' - doli


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
review perspective projection1
Review: Perspective Projection
  • Points go to Points
  • Lines go to Lines
  • Planes go to whole image or Half-planes
  • Polygons go to Polygons
review intrinsic camera parameters
Review: Intrinsic Camera Parameters

Y

M

Image plane

C

Z

v

X

Focal plane

m

u

review extrinsic parameters
Review: Extrinsic Parameters

Y

M

Image plane

Y

C

Z

v

X

X

Z

Focal plane

m

u

By Rigid Body Transformation:

recovering 3d from images
Recovering 3D from images
  • What cues in the image provide 3D information?
visual cues
Visual cues
  • Shading

Merle Norman Cosmetics, Los Angeles

visual cues1
Visual cues
  • Shading
  • Texture

The Visual Cliff, by William Vandivert, 1960

visual cues2
Visual cues
  • Shading
  • Texture
  • Focus

From The Art of Photography, Canon

visual cues3
Visual cues
  • Shading
  • Texture
  • Focus
  • Motion
visual cues4
Visual cues
  • Shading
  • Texture
  • Focus
  • Motion
  • Shape From X
    • X = shading, texture, focus, motion, ...
multi view geometry1
3D World Points
  • Camera Centers
  • Camera Orientations
Multi-View Geometry

Relates

multi view geometry2
3D World Points
  • Camera Centers
  • Camera Intrinsic Parameters
  • Image Points
Multi-View Geometry

Relates

  • Camera Orientations
stereo
Stereo

scene point

image plane

optical center

stereo1
Stereo
  • Basic Principle: Triangulation
    • Gives reconstruction as intersection of two rays
  • Requires
    • calibration
    • point correspondence
stereo constraints
Stereo Constraints

p’

?

p

Given p in left image, where can the corresponding point p’in right image be?

stereo constraints1
Epipolar Line

p’

Y2

X2

Z2

O2

Epipole

Stereo Constraints

M

Image plane

Y1

p

O1

Z1

X1

Focal plane

ad