News tagged with 3d image
Radiation dose level affects size of lesions seen on chest CT images
The estimated size of chest lymph nodes and lung nodules seen on CT images varies significantly when the same nodes or nodules are examined using lower versus higher doses of radiation, a new study shows. The size of lymph ...
Cancer
Apr 17, 2013 |
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Researchers design respirators for children with neuromuscular diseases
TU Delft is developing a special respirator for children with a neuromuscular disease. The Sporters in Actie foundation collected €100,000 for research on this breathing mask during the 'Greatest Golf Tournament ...
Diseases, Conditions, Syndromes
Apr 15, 2013 |
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Tomosynthesis improves detection of infiltrating ductal carcinoma in patients with increased risk
Tomosynthesis (3D mammography) is better able to show infiltrating ductal carcinoma than 2D mammography in women at increased risk of breast cancer, a new study shows.
Cancer
Apr 13, 2013 |
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Scientists develop 3-D stem cell culture technique to better understand Alzheimer's disease
A team of researchers at The New York Stem Cell Foundation Research Institute led by Scott Noggle, PhD, Director of the NYSCF Laboratory and the NYSCF – Charles Evans Senior Research Fellow for Alzheimer's Disease, and ...
Alzheimer's disease & dementia
Apr 02, 2013 |
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Personalized brain mapping technique preserves function following brain tumor surgery
Neurosurgeons can visualize important pathways in the brain using an imaging technique called diffusion tensor imaging (DTI), to better adapt brain tumor surgeries and preserve language, visual and motor function while removing ...
Neuroscience
Apr 01, 2013 |
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Updated 'stereo EEG' workflow simplifies planning of epilepsy surgery
For patients with "drug-resistant" epilepsy requiring surgery, an updated stereoelectroencephalography (SEEG) technique provides a more efficient process for obtaining critical data for surgical planning, according to a study ...
Surgery
Mar 12, 2013 |
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An atlas of the human heart is drawn using statistics
Researchers at Pompeu Fabra University (Spain) have created a high resolution atlas of the heart with 3D images taken from 138 people. The study demonstrates that an average image of an organ along with its ...
Medical research
Feb 26, 2013 |
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Uncovering the secrets of 3D vision: How glossy objects can fool the human brain
(Medical Xpress)—It's a familiar sight at the fairground: rows of people gaping at curvy mirrors as they watch their faces and bodies distort. But while mirrored surfaces may be fun to look at, new findings by researchers ...
Neuroscience
Jan 22, 2013 |
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Ideal body size identified
(Medical Xpress)—The ideal male and female bodies according to each of the sexes have been identified by researchers at Newcastle University using a special 3D design programme. The findings, published today in the journ ...
Psychology & Psychiatry
Dec 03, 2012 |
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Japan firm offers 3D model of foetus
Expectant parents in Japan who can't wait to show the world what their baby will look like can now buy a three-dimensional model of the foetus to pass around their friends.
Other
Nov 27, 2012 |
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New MRI technique allows detailed imaging of complex muscle structures and muscle damage
TU/e and the Academic Medical Center in Amsterdam have together developed a technique that allows detailed 3D imaging of complex muscle structures of patients. It also allows muscle damage to be detected ...
Medical research
Oct 30, 2012 |
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New X-ray breast cancer imaging possible with 25 times reduced radiation dose
Scientists have developed a way to produce three-dimensional X-ray images of the breast at a radiation dose that is lower than the 2D radiographies used in clinics today. The new method enables the production ...
Cancer
Oct 22, 2012 |
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Scientists lead rat race for better PET scan
Scientists in Australia have devised a method of scanning lab rats' brains as they scurry about freely, eliminating the need for anaesthesia or forced restraint, a report said Wednesday.
Medical research
Jun 19, 2012 |
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Rhythm of heart revealed by 3D X-ray
(Medical Xpress) -- Scientists at the University have developed a new X-ray technique to identify tissue fibres in the heart that ensure the muscle beats in a regular rhythm.
Cardiology
Apr 26, 2012 |
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3D technology takes next step beyond traditional mammography
MILWAUKEE - After already having been through breast cancer treatment, Michelle Luckiesh did not think twice when doctors at Waukesha Memorial Hospital told her they had a new mammography device that may be able to detect ...
Other
Apr 20, 2012 |
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Stereoscopy
Stereoscopy, stereoscopic imaging or 3-D (three-dimensional) imaging is any technique capable of recording three-dimensional visual information or creating the illusion of depth in an image. The illusion of depth in a photograph, movie, or other two-dimensional image is created by presenting a slightly different image to each eye. Many 3D displays use this method to convey images. It was first invented by Sir Charles Wheatstone in 1840. Stereoscopy is used in photogrammetry and also for entertainment through the production of stereograms. Stereoscopy is useful in viewing images rendered from large multi-dimensional data sets such as are produced by experimental data. Modern industrial three dimensional photography may use 3D scanners to detect and record 3 dimensional information. The three-dimensional depth information can be reconstructed from two images using a computer by corresponding the pixels in the left and right images. Solving the Correspondence problem in the field of Computer Vision aims to create meaningful depth information from two images.
Traditional stereoscopic photography consists of creating a 3-D illusion starting from a pair of 2-D images. The easiest way to create depth perception in the brain is to provide the eyes of the viewer with two different images, representing two perspectives of the same object, with a minor deviation similar to the perspectives that both eyes naturally receive in binocular vision. If eyestrain and distortion are to be avoided, each of the two 2-D images preferably should be presented to each eye of the viewer so that any object at infinite distance seen by the viewer should be perceived by that eye while it is oriented straight ahead, the viewer's eyes being neither crossed nor diverging. When the picture contains no object at infinite distance, such as a horizon or a cloud, the pictures should be spaced correspondingly closer together.
For more information about Stereoscopy, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
