Search: in
3D reconstruction
3D reconstruction in Encyclopedia Encyclopedia
  Tutorials     Encyclopedia     Videos     Books     Software     DVDs  

3D reconstruction

See Iterative reconstruction for 3D reconstruction in Medical imaging.

In computer vision and computer graphics, 3D reconstruction is the process of capturing the shape and appearance of real objects. This process can be accomplished either by active or passive methods. If we allow the model to change its shape in time, we talk about non-rigid or spatio-temporal reconstruction.


Active methods

These methods actively interfere with the reconstructed object, either mechanically or radiometrically. A simple example of a mechanical method would use a depth gauge to measure a distance to a rotating object put on a turntable. More applicable radiometric methods emit radiance towards the object and then measure its reflected part. Examples range from moving light sources, colored visible light, time-of-flight lasers to microwaves or ultrasound. See 3D scanning for more details.

Passive methods

Passive methods of 3D reconstruction do not interfere with the reconstructed object, they only use a sensor to measure the radiance reflected or emitted by the object's surface to infer its 3D structure. Typically, the sensor is an image sensor in a camera sensitive to visible light and the input to the method is a set of digital images (one, two or more) or video. In this case we talk about image-based reconstruction and the output is a 3D model.

See also

  • 3D modeling
  • 3D data acquisition and object reconstruction
  • 3D reconstruction from multiple images

External links


Source: Wikipedia | The above article is available under the GNU FDL. | Edit this article

Search for 3D reconstruction in Tutorials
Search for 3D reconstruction in Encyclopedia
Search for 3D reconstruction in Videos
Search for 3D reconstruction in Books
Search for 3D reconstruction in Software
Search for 3D reconstruction in DVDs
Search for 3D reconstruction in Store


3D reconstruction in Encyclopedia
3D_reconstruction top 3D_reconstruction

Home - Add TutorGig to Your Site - Disclaimer

©2011-2013 All Rights Reserved. Privacy Statement