WordNet

place on top of; "can you superimpose the two images?" (同)superpose, lay_over

PrepTutorEJDIC

〈ある物〉‘を'(…の)上に置く(重ねる)《+名+on(upon, over)+名》 / (フイルムに)字幕‘を'焼きつける

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/02/03 16:15:40」(JST)

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Graphics

In graphics, superimposition is the placement of an image or video on top of an already-existing image or video, usually to add to the overall image effect, but also sometimes to conceal something (such as when a different face is superimposed over the original face in a photograph).

Cartography

This technique is used in cartography to produce photomaps by superimposing grid lines, contour lines and other linear or textual mapping features over aerial photographs.

2D images

Superimposition of 2D images containing correlated periodic grid structures may produce moiré patterns. Superimposition of two correlated layers comprising parallel lines or curves may give rise line moiré patterns. The movement of one of the layers results in a faster movement of the line moiré superimposition image. Such optical acceleration is known as moiré speedup (check for the formulas of optical speedup for curved patterns). When superimposing two identical layers comprising randomly spaced parallel lines, at a small angle or with a small scaling difference random line moiré patterns, namely line Glass patterns (after Leon Glass, 1969) appear. Similarly, when superimposing two identical layers of randomly scattered dots at a small angle or with a small scaling difference random dot Glass patterns, namely random dot moiré, appears. When one of the layers embeds complex shapes, such as sequences of symbols forming a text, and another layer contains parallel lines or curves, the superimposition image may give rise to magnified shapes, called shape moiré patterns.

Superimposition during sound recording and reproduction (commonly called overdubbing) is the process of adding new sounds over existing without completely erasing or masking the existing sound. Some reel-to-reel tape recorders of the mid 20th century provided crude superimposition facilities that were implemented by killing the high-frequency AC feed to the erase head while recording as normal via the read-write head.

References

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English Journal

Amyloid in dementia associated with familial FTLD: not an innocent bystander.

Naasan G1, Rabinovici GD1, Ghosh P1, Elofson JD1, Miller BL1, Coppola G2, Karydas A1, Fong J1, Perry D1, Lee SE1, Yokoyama JS1, Seeley WW1, Kramer JH1, Weiner MW3, Schuff N3, Jagust WJ4, Grinberg LT1, Pribadi M2, Yang Z2, Sears R2, Klein E2, Wojta K2, Rosen HJ1.
Neurocase.Neurocase.2016 Feb;22(1):76-83. doi: 10.1080/13554794.2015.1046458. Epub 2015 Jun 4.
Patients with frontotemporal lobar degeneration (FTLD) can show superimposed amyloid pathology, though the impact of amyloid on the clinical presentation of FTLD is not well characterized. This cross-sectional case-control study compared clinical features, fluorodeoxyglucose-positron emission tomogr
PMID 26040468

64Cu-DOTA as a surrogate positron analog of Gd-DOTA for cardiac fibrosis detection with PET: pharmacokinetic study in a rat model of chronic MI.

Kim H1, Lee SJ, Davies-Venn C, Kim JS, Yang BY, Yao Z, Kim I, Paik CH, Bluemke DA.
Nuclear medicine communications.Nucl Med Commun.2016 Feb;37(2):188-96. doi: 10.1097/MNM.0000000000000417.
OBJECTIVES: The aim of this study was to investigate the pharmacokinetics of Cu-DOTA (1,4,7,10-azacyclododecane-N,N',N,N'-tetraacetic acid), a positron surrogate analog of the late gadolinium (Gd)-enhancement cardiac magnetic resonance agent, Gd-DOTA, in a rat model of chronic myocardial infarct
PMID 26488428

Resonance effects in thickness-dependent ultrafast carrier and phonon dynamics of topological insulator Bi2Se3.

Kim S1, Shin DH, Kim JH, Jang CW, Park JW, Lee H, Choi SH, Kim SH, Yee KJ, Bansal N, Oh S.
Nanotechnology.Nanotechnology.2016 Jan 29;27(4):045705. doi: 10.1088/0957-4484/27/4/045705. Epub 2015 Dec 14.
Resonance effects in the thickness-dependent ultrafast carrier and phonon dynamics of topological insulator Bi2Se3 are found irrespective of the kind of substrate by measuring thickness-dependent abrupt changes of pump-probe differential-reflectivity signals (ΔR/R) from Bi2Se3 thin films on four di
PMID 26655693

Japanese Journal

Quantum Electrical Transport in Mesoscopic LaAlO

Chang Jung-Won,Song Jonghyun,Lee Joon Sung,Noh Hyunho,Seung Sang Keun,Baasandorj Lkhagvasuren,Lee Soon Gul,Doh Yong-Joo,Kim Jinhee
Applied Physics Express 6(8), 085201-085201-4, 2013-08-25
… Instead, a negative MC behavior appears with superimposed conductance fluctuations, which is attributed to weak antilocalization and universal conductance fluctuations. …
NAID 150000107213

Enhancement of Focused Ultrasound Treatment by Acoustically Generated Microbubbles

Umemura Shin-ichiro,Yoshizawa Shin,Takagi Ryo,Inaba Yuta,Yasuda Jun
Jpn J Appl Phys 52(7), 07HA02-07HA02-6, 2013-07-25
… The use of second-harmonic superimposed waves as the trigger pulses is also proposed. …
NAID 150000107365

Carbonyl-Iron/Epoxy Composite Magnetic Core for Planar Power Inductor Used in Package-Level Power Grid

Sugawa Yuichiro,Ishidate Kazuma,Sonehara Makoto,Sato Toshiro
IEEE TRANSACTIONS ON MAGNETICS 49(7), 4172-4175, 2013-07-00
… Inductance was constant even when the superimposed dc current increased up to around 5.5 A. …
NAID 120005324035