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*  Pfinder
Picardi, Massimo (15 April 2004). "Background subtraction techniques: a review" (PDF). University of Technology, Sydney. p. 13 ... Pfinder has been applied to the recognition of American Sign Language Background subtraction Wren, Christopher Richard; Ali ...
*  SPARCL1
... "cDNA subtraction library construction using a magnet-assisted subtraction technique (MAST)". Trends in Genetics. 9 (3): 70-1. ... "Human plasma N-glycoproteome analysis by immunoaffinity subtraction, hydrazide chemistry, and mass spectrometry". Journal of ...
*  Star formation
Even outside this range, atmospheric subtraction techniques must be used. X-ray observations have proven useful for studying ...
*  Angiography
The heart images are taken at 15-30 frames per second, not using a subtraction technique. Because DSA requires the patient to ... For all structures except the heart, the images are usually taken using a technique called digital subtraction angiography or ... The technique was first developed in 1927 by the Portuguese physician and neurologist Egas Moniz at the University of Lisbon to ... If digital subtraction angiography is used instead, the risks are considerably reduced because the catheter does not need to be ...
*  Electronic speckle pattern interferometry
When the subtraction technique described above is used, fringes are obtained which represent in-plane displacement contours. ... Again, subtraction of the two images is used to display the fringes. Holographic interferometry has no equivalent to in-plane ... Electronic speckle pattern interferometry (ESPI), also known as TV Holography, is a technique which uses laser light, together ... As with many interferometric techniques, it is not possible to identify the zero-order fringe[clarification needed] without ...
*  Chronic thromboembolic pulmonary hypertension
... using native angiograms or a digital subtraction technique. Decision making for patients with CTEPH can be complex and needs to ... The technique has been refined over the past 5 years and initial reports have confirmed the safety and efficacy of the ... Although balloon pulmonary angioplasty (BPA) technique is still evolving, it may currently be considered for CTEPH patients who ... technique, based on data showing haemodynamic improvement and recovery of right ventricular function. More evidence is ...
*  Nuclear medicine
... simultaneous imaging and the subtraction technique (3rd column). Normal hepatobiliary scan (HIDA scan). The nuclear medicine ... Certain techniques such as fMRI image tissues (particularly cerebral tissues) by blood flow and thus show metabolism. Also, ... The fusion imaging technique in nuclear medicine provides information about the anatomy and function, which would otherwise be ... There are several techniques of diagnostic nuclear medicine. 2D: Scintigraphy ("scint") is the use of internal radionuclides to ...
*  Hot Spot (cricket)
Using a subtraction technique a series of black-and-white negative frames is generated into a computer, precisely localising ...
*  Background subtraction
... , also known as foreground detection, is a technique in the fields of image processing and computer ... we can segment out the objects simply by using image subtraction technique of computer vision meaning for each pixels in I(t), ... object localisation is required which may make use of this technique. Background subtraction is a widely used approach for ... Background subtraction is mostly done if the image in question is a part of a video stream. Background subtraction provides ...
*  Dark-frame subtraction
The dark-frame-subtraction technique is also used in digital photogrammetry, to improve the contrast of satellite and air ... The technique works by taking a picture with the shutter closed. A dark frame is an image captured with the sensor in the dark ... Dark-frame subtraction has been done for some time in scientific imaging; many newer consumer digital cameras offer it as an ... In digital photography, dark-frame subtraction is a way to minimize image noise for photographs shot with long exposure times. ...
*  Slide rule
... but it is nevertheless possible to do so using two different techniques. The first method to perform addition and subtraction ... Addition and subtraction are performed by sliding the cursor left (for subtraction) or right (for addition) then returning the ... This method is similar to the addition/subtraction technique used for high-speed electronic circuits with the logarithmic ... Addition and subtraction are not well-supported operations on slide rules and doing a calculation on a slide rule tends to be ...
*  List of MeSH codes (E01)
... subtraction technique MeSH E01.370.350.760.060 --- angiography, digital subtraction MeSH E01.370.350.760.700 --- radiography, ... fluorescent antibody technique, direct MeSH E01.450.495.225.230 --- fluorescent antibody technique, indirect MeSH E01.450. ... enzyme multiplied immunoassay technique MeSH E01.450.495.410.380 --- immunosorbent techniques MeSH E01.450.495.410.380.200 --- ... glucose clamp technique MeSH E01.450.150.100.355 --- glucose tolerance test MeSH E01.450.150.100.450 --- lactose tolerance test ...
*  Arithmetic
Similar techniques exist for subtraction and division. The creation of a correct process for multiplication relies on the ... Subtraction is neither commutative nor associative. For that reason, it is often helpful to look at subtraction as addition of ... Subtraction is the inverse of addition. Subtraction finds the difference between two numbers, the minuend minus the subtrahend ... Although the amount counted out must equal the result of the subtraction P − Q, the subtraction was never really done and the ...
*  Neurolinguistics
These techniques include the subtraction paradigm, mismatch design, violation-based studies, various forms of priming, and ... Such techniques include PET and fMRI. These techniques provide high spatial resolution, allowing researchers to pinpoint the ... Hemodynamic techniques take advantage of the fact that when an area of the brain works at a task, blood is sent to supply that ... The technique of EEG measures this electric current using sensors on the scalp, while MEG measures the magnetic fields that are ...
*  Multispectral optoacoustic tomography
... images obtained at multiple wavelengths must be further processed using subtraction or spectral unmixing techniques. Background ... This made the technique impractical for in vivo animal imaging or clinical use. Technological advances in detector arrays and ... Through spectral unmixing and other techniques, MSOT data can be used to generate separate images based on the contrast ... Computational techniques such as spectral unmixing deconvolute the ultrasound waves emitted by these different absorbers, ...
*  Paolo Roversi
This is my technique. He is known for shooting with 8x10 Polaroid film, and claimed to buy as much as he could find before it ... My photography is more subtraction than addition. I always try to take off things. We all have a sort of mask of expression. ... Exposed in 2008 at Rencontres d'Arles festival, France.[clarification needed] Roversi has said of his technique: ...
*  Chalukya dynasty
They were not build as their structural counterparts were, rather created by a special technique known as "subtraction" and are ...
*  Suanpan
ISBN 3-540-33782-2. Suanpan Tutor - See the steps in addition and subtraction A Traditional Suan Pan Technique for ... Also, some "old" methods to multiply or divide decimal numbers use those extra beads like the "Extra Bead technique" or " ... Unlike the simple counting board used in elementary schools, very efficient suanpan techniques have been developed to do ... ISBN 0-89874-318-4. Peng Yoke Ho, page 71 Martzloff, p. 216 "算盤 Traditional Multiplication Techniques for Chinese Abacus - ...
*  Foreground and background
... distinct forms of intellectual property assets Background subtraction, a technique in image processing and computer vision by ... a technique using a large depth of field Fill flash, to correctly expose the foreground and background objects Front projection ... a scrolling technique in computer graphics, wherein background images move by the camera slower than foreground images, ... creating an illusion of depth Rear projection effect, an in-camera cinematic technique in film production for combining ...
*  Diazenylium
They combined this with a counterpropogating beam technique to aid in noise subtraction, and this greatly increased their ...
*  Speech enhancement
... filtering techniques, spectral restoration, and model-based methods . Filtering Techniques Spectral Subtraction Method Wiener ... in intelligibility and/or overall perceptual quality of degraded speech signal using audio signal processing techniques. ...
*  Merkel cell polyomavirus
A virtual subtraction method was developed by Huichen Feng in the lab as a novel high-throughput sequencing technique of ... Yuan Chang and Patrick S. Moore discovered Kaposi's sarcoma-associated herpesvirus by a physical subtraction method in 1994. ... discovered using unbiased metagenomic next-generation sequencing with a technique called digital transcriptome subtraction. MCV ... "Human Transcriptome Subtraction by Using Short Sequence Tags to Search for Tumor Viruses in Conjunctival Carcinoma". Journal of ...
*  Cerebral vasculitis
Techniques such as conventional digital subtraction angiography (DSA) and magnetic resonance imaging (MRI) are used to find and ... Another crucial part in the diagnosis of cerebral vasculitis is the use of imaging techniques. ...
*  Magnetic resonance angiography
Gated subtraction fast spin-echo: An imaging technique that subtracts two fast spin echo sequences acquired at systole and ... Whereas most of techniques in MRA rely on contrast agents or flow into blood to generate contrast (Contrast Enhanced techniques ... By subtraction of these two acquisitions in post-processing, an image is obtained which in principle only shows blood vessels, ... MRA techniques in general are sensitive to turbulent flow, which causes a variety of different magnetized proton spins to lose ...
*  Tak Wah Mak
Mak employed a technique called molecular subtraction, used by virologists, to attempt to identify the T-cell receptor, which ... In 1980, Mak returned to Wisconsin to learn new techniques in the lab of Howard Martin Temin, who would later win the Nobel ...