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Quaternion Domain Fourier Transform
2014So far quaternion Fourier transforms have been mainly defined over R^2 as signal domain space. But it seems natural to define a quaternion Fourier transform for quaternion valued signals over quaternion domains. Such signals may e.g. represent vector fields in space and time. The quaternion domain Fourier transform thus developed may also be useful for
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Fast sliding transforms in transform-domain adaptive filtering
1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2002Transform-domain adaptive signal processing proved to be very successful in very many applications especially where systems with long impulse responses are to be evaluated. The popularity of these methods is due to the efficiency of the fast signal transformation algorithms and that of the block oriented adaptation mechanisms.
A.R. Varkonyi-Koczy, S. Theodoridis
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Special Affine Quaternion Domain Fourier Transform
2023This paper undertakes a special ane Fourier transformation generalization of the quaterion domain Fourier transform (QDFT) that can process signals with both range and domains being subsets of quaternions H. The resulting special ane quaternion domain Fourier transform includes a.o.
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Transform domain fragile watermarking using fermat number transform
2015 IEEE International Conference on Computational Intelligence and Computing Research (ICCIC), 2015This paper presents a transform domain fragile watermarking technique based on Fermat number transform (FNT). This transform domain is very simple and efficient in terms of computational complexity and speed. FNT is a true digital transform, which makes the watermarking method free from round-off errors.
K.M. Varuna Rao, Umesh Ghanekar
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Transformed Domain Linear Equalisers using Discrete Gabor Transform
2009 IEEE International Advance Computing Conference, 2009The concept of transform domain adaptive equalizer is introduced in this paper. An ideal equalizer should offer minimum synchronization time. This can be achieved if the equalizer takes minimum sampling or training. This objective can be achieved if the transformed domain equalizer is used instead of the time domain one.
Gunamani Jena +2 more
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Spatial Domain Image Transforms
2012Because of the multispectral or vector character of remote sensing image data we can devise transformations that generate new pixel vector descriptions from the old, and thereby create synthetic image components, or bands, as shown in Fig. 6.1. They represent an alternative description of the data.
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
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