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Showing 1 to 17 of 17 for “"KLT"”.
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The KLT relations in unimodular gravity
… show, up to five-points and tree-level, that the KLT relations of perturbative gravity hold for trace free or unimodular gravity. This work is in conjunction with a paper written with A. Welman, J. Murugan and G.F.R. Ellis (ARXIV: 1511.08517)
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Hyperspectral Image Compression Using a Two-Stage KLT
… cases, the direct application of the standard KLT algorithm over an entire data set is not practical. The data may be too large for efficient processing by one encoder and so portions of the entire data set may necessarily be sampled by different encoders. The algorithm proposed handles such a …
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De-noising of Real-time Dynamic Magnetic Resonance Images by the Combined Application of Karhunen-Loeve Transform (KLT) and Wavelet Filtering
… methods: temporal Karhunen-Loeve transform (KLT) and spatial adaptive wavelet filtering. KW filtering has four steps: 1. Apply KLT along the temporal direction, generating a series of “eigenimages”. Because of the high temporal correlations, most of the energy is concentrated into a few …
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High performance digital signal processing: Theory, design, and applications in finance
… particular tool is the Karhunen-Loeve transform (KLT) (also known as the principal component analysis) where covariance matrix of a stochastic process is decomposed into its eigenvectors and eigenvalues as the optimal orthonormal transform. Specifically, eigenanalysis is utilized to determine the …
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Comparison of selected radiopharmaceutical chromatographic quality control procedures
… The two commercial kits evaluated were the- MAC Klt- produced-General Radioisotopes Products, and the TECH Kit by Ackerman Nuclear.</p>
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Demarcation of coding and non-coding regions of DNA using linear transforms
… Karhunen Loeve Transform. Though both DFT and KLT of an exon sequence produce a higher figure of merit than that for an intron sequence, it is interesting to note that the difference in the figure of merits of exons and introns was higher when the KLT was applied to the sequence than when the …
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Low-complexity approximations for discrete transforms : design, fast algorithms, image coding, and use as a tool in statistical inference
… transform (DFT), the Karhunen-Loève transform (KLT) and the discrete cosine transform (DCT) as the most relevant transforms in the context of signal and image processing. Although the relevance of using these transforms has been widely corroborated in several studies, the computational costs …
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Subspace methods for portfolio design
… transform coding where Karhunen-Loeve Transform (KLT) is the optimum block transform. In this dissertation, a signal processing framework to design investment portfolios is proposed. Portfolio theory and subspace methods are investigated and jointly treated. First, KLT, also known as eigenanalysis …
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Transform texture classification
… transform matrix. The Karhunen-Loeve Transfonn (KLT) extracts a vector of dominant features, optimally preserving texture information in the matrix. This approach is made possible by the introduction of a novel Multi-level Dominant Eigenvector Estimation (MDEE) algorithm, which reduces the …
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Appearance based object recognition using independent component analysis
… is usually done using Karhunen-Loeve transform (KLT), or principal component analysis (PCA). The lower dimensional space has been called the eigenspace. For recognition, the test image is projected likewise onto the eigenspace and its position on the appearance manifold is used for the …
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Object Tracking: Appearance Modeling And Feature Learning
… issues. The system depends on our improved KLT tracker for accurate and robust tracking during partial occlusion. In full occlusion, we applied a Kalman filter to predict the object's new location and connect the trajectory parts.</p> <p>Many tracking methods depend on a rectangle or an …
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Design and performance of CDMA codes for multiuser communications
… spectrum codes using Karhunen-Loeve Transform (KLT) technique. Eigen decomposition technique is used to generate spread spectrum basis functions that are jointly spread in time and frequency domains for a given covariance matrix or power spectral density function. Since this is a closed form …
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The classification of acoustic emission signals via artificial neural network
… functions such as the Karhunen-Loeve Transform (KLT) and pattern recognition functions such as the Principal Component Analysis (PCA). The configuration of the classifier is a multilayer feed forward network in which the supervised and unsupervised learning algorithms are implemented. Based on …
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A Study of Perceptually Tuned, Wavelet Based, Rate Scalable, Image and Video Compression
… Tree (SPIHT) and Karhunen-Loeve Transform (KLT). Secondly, a novel wavelet based interframe compression scheme has been developed and put into practice. It is based on the Flexible Block Wavelet Transform (FBWT) that we have developed. FBWT based interframe compression is very efficient in …
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Evaluating UAV Visual-Inertial Odometry Trajectory Error and Feature-Level Metrics over Repetitive Floor Patterns
… Shi-Tomasi with Kanade-Lucas-Tomasi (KLT) tracking. The analysis was applied externally as offline post-processing on the recorded camera frames, without modification of the proprietary qVIO pipeline. The metrics included feature count, spatial distribution, descriptor uniqueness …
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Global fibrinolytic potential of black South Africans in the North West Province
INTRODUCTION AND AIM - The prevalence of cardiovascular disease (CVD) has increased significantly in the black South African population in recent years. Early in the development of CVD, atherosclerotic plaques form in the vessel wall. When this plaque becomes unstable and ruptures, the coagulation …
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Advances in medical infrared thermography
… of the eyes by using a mixture of Viola-Jones, KLT, and superpixel algorithms. The results produce specific core versus body extremities temperature patterns that can be used to simulate body response to sepsis. Additionally, we proposed a deep learning classification procedure for sepsis …