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   Articles with "limited angle" as a keyword



A variational proximal alternating linearized minimization in a given metric for limited-angle CT image reconstruction

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recommendations! Published in 2019 at "Applied Mathematical Modelling"

DOI: 10.1016/j.apm.2018.09.038

Abstract: Abstract Due to the restriction of computed tomography (CT) scanning environment, the acquired projection data may be incomplete for exact CT reconstruction. Though some convex optimization methods, such as total variation minimization based method, can… read more here.

Keywords: reconstruction; limited angle; method; image ... See more keywords

Error analysis of speed of sound reconstruction in ultrasound limited angle transmission tomography.

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recommendations! Published in 2018 at "Ultrasonics"

DOI: 10.1016/j.ultras.2018.03.016

Abstract: We have investigated limited angle transmission tomography to estimate speed of sound (SOS) distributions for breast cancer detection. That requires both accurate delineations of major tissues, in this case by segmentation of prior B-mode images,… read more here.

Keywords: segmentation; angle transmission; transmission tomography; limited angle ... See more keywords

Simulation-based deep artifact correction with Convolutional Neural Networks for limited angle artifacts.

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recommendations! Published in 2019 at "Zeitschrift fur medizinische Physik"

DOI: 10.1016/j.zemedi.2019.01.002

Abstract: Non-conventional scan trajectories for interventional three-dimensional imaging promise low-dose interventions and a better radiation protection to the personnel. Circular tomosynthesis (cTS) scan trajectories yield an anisotropical image quality distribution. In contrast to conventional Computed Tomographies… read more here.

Keywords: artifact correction; simulation based; limited angle; angle artifacts ... See more keywords

Structural optimization and magneto-thermal coupling simulation of limited angle torque motor

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recommendations! Published in 2025 at "AIP Advances"

DOI: 10.1063/5.0248688

Abstract: The limited-angle torque motor (LATM) is an electric actuator capable of rotating within a limited angular range and outputting a stable torque. It features a simple structure and high reliability and can be used in… read more here.

Keywords: torque motor; limited angle; torque; simulation ... See more keywords

Superiorized algorithm for reconstruction of CT images from sparse-view and limited-angle polyenergetic data.

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recommendations! Published in 2017 at "Physics in medicine and biology"

DOI: 10.1088/1361-6560/aa7c2d

Abstract: Recent work in CT image reconstruction has seen increasing interest in the use of total variation (TV) and related penalties to regularize problems involving reconstruction from undersampled or incomplete data. Superiorization is a recently proposed… read more here.

Keywords: reconstruction; limited angle; superiorized algorithm; sparse view ... See more keywords

Reconstruction method for DECT with one half-scan plus a second limited-angle scan using prior knowledge of complementary support set (Pri-CSS).

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recommendations! Published in 2019 at "Physics in medicine and biology"

DOI: 10.1088/1361-6560/ab5faf

Abstract: Dual-energy computed tomography (DECT) has capability to improve material differentiation, but most scanning schemes require two sets of full-scan measurements at different x-ray spectra, limiting its application to imaging system with incomplete scan. In this… read more here.

Keywords: reconstruction; complementary support; limited angle; support set ... See more keywords
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Limited-angle TOF-PET for intraoperative surgical applications: proof of concept and first experimental data

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recommendations! Published in 2022 at "Journal of Instrumentation"

DOI: 10.1088/1748-0221/17/01/t01002

Abstract: The intraoperative gamma probe (IPG) based on single gamma-ray detection remains the current gold standard modality for sentinel lymph node identification and tumor removal in cancer patients. However, IPGs do not meet the read more here.

Keywords: tof pet; tof; limited angle; detector ... See more keywords

Coupled Modeling and Design Principles of Limited-Angle Vibration Motors for High-Frequency Reciprocating Rotation

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recommendations! Published in 2024 at "IEEE Transactions on Industrial Electronics"

DOI: 10.1109/tie.2024.3357876

Abstract: In this article, a new type of electric machine called limited-angle vibration motor (LAVM) for the motion of high-frequency reciprocating rotation is proposed. The corresponding coupled model, resonance principle, and design guidelines are established. Contrary… read more here.

Keywords: frequency; limited angle; angle vibration; design ... See more keywords

SPIE-DIR: Self-Prior Information Enhanced Deep Iterative Reconstruction Using Two Complementary Limited-Angle Scans for DECT

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recommendations! Published in 2023 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2022.3227549

Abstract: Dual-energy computed tomography (DECT) can simultaneously provide the anatomical structure and material-specific information of the scanned object, having many applications in industry and medicine. Different from conventional CT, DECT acquires two attenuation measurements of the… read more here.

Keywords: information; spie dir; limited angle; dir ... See more keywords

Sensitivity Analysis of Design Parameters in Limited-Angle Wound Rotor Resolver

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recommendations! Published in 2024 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2024.3387971

Abstract: This article presents the design considerations and a parametric analysis of a limited-angle wound rotor resolver (LAWRR) with high precision. LAWRRs are extensively employed in motion control systems requiring limited rotation, such as missile guidance… read more here.

Keywords: analysis; rotor; limited angle; wound rotor ... See more keywords

DIOR: Deep Iterative Optimization-Based Residual-Learning for Limited-Angle CT Reconstruction

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recommendations! Published in 2022 at "IEEE Transactions on Medical Imaging"

DOI: 10.1109/tmi.2022.3148110

Abstract: Limited-angle CT is a challenging problem in real applications. Incomplete projection data will lead to severe artifacts and distortions in reconstruction images. To tackle this problem, we propose a novel reconstruction framework termed Deep Iterative… read more here.

Keywords: iterative optimization; based residual; limited angle; deep iterative ... See more keywords