Notes for An Invitation to 3-D Vision.
Visual System
A collection of devices that transform measurements of light into information about spatial and material properties of a scene.
Devices
- photosensitive sensor (camera, retina)
- computational mechanisms (computer, brain)
Why is vision hard?
We do not know:
- shape (geometry)
- illumination & material properties (photometry)
- motion (dynamics)
What this books does
Concentrate on scenes that contain a number of rigidly moving objects that have “benign” (excludes shiny and translucent materials) photometric properties.
Given a number of 2-D images, this book seeks to answer the following questions
- to what extent and how can we estimate the 3-D shape of each object?
- to what extent can we recover the motion of each object relative to the camera?
- to what extent can we recover a model of the geometry of the camera itself?
To conclude, this book describes algorithms designed to estimate 3-D structure, motion and camera calibration from a collection of images.