Results 21 to 30 of about 15,282,041 (334)

Scale space Radon transform

open access: yesIET Image Processing, 2021
An extension of Radon transform by using a measure function capturing the user need is proposed. The new transform, called scale space Radon transform, is devoted to the case where the embedded shape in the image is not filiform.
Djemel Ziou   +2 more
doaj   +1 more source

An Objective Fabric Smoothness Assessment Method Based on a Multi-Scale Spatial Masking Model

open access: yesIEEE Access, 2019
Fabric smoothness appearance assessment plays an important role in the textile and apparel industry. It remains a challenging task to evaluate the fabric smoothness objectively.
Jingan Wang   +5 more
doaj   +1 more source

Heterogeneous Image Matching via a Novel Feature Describing Model

open access: yesApplied Sciences, 2019
Computer vision has been developed greatly in the past several years, and many useful and interesting technologies have been presented and widely applied. Image matching is an important technology based on similarity measurement.
Bin Zhou   +5 more
doaj   +1 more source

Multi-pyramid image spatial structure based on coarse-to-fine pyramid and scale space

open access: yesCAAI Transactions on Intelligence Technology, 2018
Coarse-to-fine pyramid and scale space are two important image structures in the realm of image matching. However, the advantage of coarse-to-fine pyramid is neglected as the pyramid structure is usually constructed with the down sampling method in scale
Jiucheng Xu, Nan Wang, Yuyao Wang
doaj   +1 more source

Three-Dimensional Ultrasonic Reverse-Time Migration Imaging of Submarine Pipeline Nondestructive Testing in Cylindrical Coordinates

open access: yesJournal of Marine Science and Engineering, 2023
Submarine pipelines are a safe and energy-efficient mode of gas transport. However, due to the complex manufacturing process and harsh operating environment, submarine pipelines are subject to fatigue cracks under long-term cyclic loading.
Daicheng Peng   +5 more
doaj   +1 more source

Time-causal and time-recursive spatio-temporal receptive fields [PDF]

open access: yes, 2015
We present an improved model and theory for time-causal and time-recursive spatio-temporal receptive fields, based on a combination of Gaussian receptive fields over the spatial domain and first-order integrators or equivalently truncated exponential ...
Lindeberg, Tony
core   +2 more sources

Inverse scale space decomposition [PDF]

open access: yes, 2016
We investigate the inverse scale space flow as a decomposition method for decomposing data into generalised singular vectors. We show that the inverse scale space flow, based on convex and even and positively one-homogeneous regularisation functionals ...
Marie Foged Schmidt   +2 more
semanticscholar   +1 more source

Bulk Scale Factor at Very Early Universe [PDF]

open access: yes, 2011
In this paper we propose a higher dimensional Cosmology based on FRW model and brane-world scenario. We consider the warp factor in the brane-world scenario as a scale factor in 5-dimensional generalized FRW metric, which is called as bulk scale factor ...
A. Einstein   +23 more
core   +1 more source

A parameterless scale-space approach to find meaningful modes in histograms - Application to image and spectrum segmentation [PDF]

open access: yesInt. J. Wavelets Multiresolution Inf. Process., 2014
In this paper, we present an algorithm to automatically detect meaningful modes in a histogram. The proposed method is based on the behavior of local minima in a scale-space representation.
J. Gilles, K. Heal
semanticscholar   +1 more source

Partial Block Scheme and Adaptive Update Model for Kernelized Correlation Filters-Based Object Tracking

open access: yesApplied Sciences, 2018
In visual object tracking, the dynamic environment is a challenging issue. Partial occlusion and scale variation are typical challenging problems. We present a correlation-based object tracking based on the discriminative model.
Soowoong Jeong, Joonki Paik
doaj   +1 more source

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