filtered back projection

Mira otros diccionarios:

• Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size.[1] Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… …   Wikipedia

• Radon transform — In mathematics, the Radon transform in two dimensions, named after the Austrian mathmematician Johann Radon, is the integral transform consisting of the integral of a function over straight lines. The inverse of the Radon transform is used to… …   Wikipedia

• X-ray computed tomography — For non medical computed tomography, see Industrial CT Scanning. catSCAN redirects here. For the Transformers character, see Transformers: Universe. X ray computed tomography Intervention A patient is receiving a CT scan for cancer. Outsid …   Wikipedia

• Computed tomography — tomos (slice) and graphein (to write).Computed tomography was originally known as the EMI scan as it was developed at a research branch of EMI, a company best known today for its music and recording business. It was later known as computed axial… …   Wikipedia

• Tomographic reconstruction — The mathematical basis for tomographic imaging was laid down by Johann Radon. It is applied in Computed Tomography to obtain cross sectional images of patients. This article applies in general to tomographic reconstruction for all kinds of… …   Wikipedia

• Tomography — Basic principle of tomography: superposition free tomographic cross sections S1 and S2 compared with the projected image P Tomography refers to imaging by sections or sectioning, through the use of any kind of penetrating wave. A device used in… …   Wikipedia

• Iterative reconstruction — is a method or group of algorithms used to reconstruct 2D and 3D images from the projections of an object. The technique differs greatly from the more ubiquitous filtered back projection (FBP) method. In X ray computed tomography, this method is… …   Wikipedia

• Positron emission tomography — (PET) is a nuclear medicine imaging technique which produces a three dimensional image or map of functional processes in the body. The system detects pairs of gamma rays emitted indirectly by a positron emitting radionuclide (tracer), which is… …   Wikipedia

• Single photon emission computed tomography — (SPECT, or less commonly, SPET) is a nuclear medicine tomographic imaging technique using gamma rays. It is very similar to conventional nuclear medicine planar imaging using a gamma camera. However, it is able to provide true 3D information.… …   Wikipedia

• Ordered subset expectation maximization — This article is about an algorithm. For Israeli food corporation, see Osem (company). In mathematical optimization, the ordered subset expectation maximization (OSEM) method is an iterative method that is used in computed tomography. In… …   Wikipedia

• Reconstruction algorithm — In tomography, a variety of practical reconstruction algorithms have been developed to implement the process of reconstruction of a 3 dimensional object from its projections. These algorithms are designed largely based on the mathematics of the… …   Wikipedia