Volume Rendering A volume representation is an extension
![Volume Rendering A volume representation is an extension of a 2 D image to Volume Rendering A volume representation is an extension of a 2 D image to](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-1.jpg)
![Volume Graphics Applications • • • Medical biology (confocal microscopy ( geology (seismic measurements Volume Graphics Applications • • • Medical biology (confocal microscopy ( geology (seismic measurements](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-2.jpg)
![Volume Graphics Applications • Medical – Professional viewing the MRI data looks at a Volume Graphics Applications • Medical – Professional viewing the MRI data looks at a](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-3.jpg)
![Volume Graphics Applications • Medical – After Putting all the slices together. – Adding Volume Graphics Applications • Medical – After Putting all the slices together. – Adding](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-4.jpg)
![Virtual Lights to Enhance Perception • Objects are rendered with shading from "virtual" lights Virtual Lights to Enhance Perception • Objects are rendered with shading from "virtual" lights](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-5.jpg)
![Rendering Volumes • 3 D datasets could be converted to polygonal representations of one Rendering Volumes • 3 D datasets could be converted to polygonal representations of one](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-6.jpg)
![Volume Graphics Applications • It is quite hard to represent semi-transparent objects such as Volume Graphics Applications • It is quite hard to represent semi-transparent objects such as](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-7.jpg)
- Slides: 7
![Volume Rendering A volume representation is an extension of a 2 D image to Volume Rendering A volume representation is an extension of a 2 D image to](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-1.jpg)
Volume Rendering A volume representation is an extension of a 2 D image to 3 D space. A pixel in 2 D space become a voxel in 3 D space. Voxel
![Volume Graphics Applications Medical biology confocal microscopy geology seismic measurements Volume Graphics Applications • • • Medical biology (confocal microscopy ( geology (seismic measurements](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-2.jpg)
Volume Graphics Applications • • • Medical biology (confocal microscopy ( geology (seismic measurements ( molecular systems (electronic density maps( meteorology (weather prediction simulations ( • chemistry (new material simulations) industry (non-destructive inspections (
![Volume Graphics Applications Medical Professional viewing the MRI data looks at a Volume Graphics Applications • Medical – Professional viewing the MRI data looks at a](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-3.jpg)
Volume Graphics Applications • Medical – Professional viewing the MRI data looks at a sequence of 2 D images, or "slices", created of the subject. – A group of these slices could be considered as one 3 D dataset – MRI images are slices 38 and 54 from 109 slices of size 256 x 256 taken of a human head
![Volume Graphics Applications Medical After Putting all the slices together Adding Volume Graphics Applications • Medical – After Putting all the slices together. – Adding](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-4.jpg)
Volume Graphics Applications • Medical – After Putting all the slices together. – Adding light and shading – Final Image
![Virtual Lights to Enhance Perception Objects are rendered with shading from virtual lights Virtual Lights to Enhance Perception • Objects are rendered with shading from "virtual" lights](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-5.jpg)
Virtual Lights to Enhance Perception • Objects are rendered with shading from "virtual" lights • The intensity and color of voxels used to create the final image • The voxel intensity are used to estimated normals
![Rendering Volumes 3 D datasets could be converted to polygonal representations of one Rendering Volumes • 3 D datasets could be converted to polygonal representations of one](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-6.jpg)
Rendering Volumes • 3 D datasets could be converted to polygonal representations of one certain feature (surface. ( • Unfortunately this method allows the user to view only one feature (surface. ( • Volume rendering allows the user to see inside objects so the relationships among multiple features can be examined.
![Volume Graphics Applications It is quite hard to represent semitransparent objects such as Volume Graphics Applications • It is quite hard to represent semi-transparent objects such as](https://slidetodoc.com/presentation_image/fa2fadc664dc15cc7bbbc12d190e0e50/image-7.jpg)
Volume Graphics Applications • It is quite hard to represent semi-transparent objects such as amorphous clouds, smoke, fire, even jello using polygons. • How to mix Polygons with volume? ? ?