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Yuping Ji

dblp:359/2127 · DBLP profile ↗
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1ranked-venue papers
0as first author
1since 2021 · last 2024
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Graphics, computer vision, multimedia, augmented reality and games · 1 · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Interdisciplinary, comprehensive, and emerging computing
1 paper
Medical and health informatics · 100%
Computer graphics and multimedia
1 paper
Image and video processing · 100%

Topics — the 3 heaviest of 3, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Medical and health informatics › medical image reconstruction
image reconstruction
0.812024
Improved MRF Reconstruction via Structure-Preserved Graph Embedding Framework · IEEE Trans. Image Process. 2024
Medical and health informatics › medical imaging › magnetic resonance imaging
magnetic resonance fingerprinting
0.812024
Improved MRF Reconstruction via Structure-Preserved Graph Embedding Framework · IEEE Trans. Image Process. 2024
Image and video processing
image reconstruction
0.812024
Improved MRF Reconstruction via Structure-Preserved Graph Embedding Framework · IEEE Trans. Image Process. 2024

Methods — techniques the papers use, named apart from their topics

non-local redundancy exploitation · 1.5graph embedding · 1.5
YearPublicationVenuePosition
2024 Improved MRF Reconstruction via Structure-Preserved Graph Embedding Framework
abstract
Highly undersampled schemes in magnetic resonance fingerprinting (MRF) typically lead to aliasing artifacts in reconstructed images, thereby reducing quantitative imaging accuracy. Existing studies mainly focus on improving the reconstruction quality by incorporating temporal or spatial data priors. However, these methods seldom exploit the underlying MRF data structure driven by imaging physics and usually suffer from high computational complexity due to the high-dimensional nature of MRF data. In addition, data priors constructed in a pixel-wise manner struggle to incorporate non-local and non-linear correlations. To address these issues, we introduce a novel MRF reconstruction framework based on the graph embedding framework, exploiting non-linear and non-local redundancies in MRF data. Our work remodels MRF data and parameter maps as graph nodes, redefining the MRF reconstruction problem as a structure-preserved graph embedding problem. Furthermore, we propose a novel scheme for accurately estimating the underlying graph structure, demonstrating that the parameter nodes inherently form a low-dimensional representation of the high-dimensional MRF data nodes. The reconstruction framework is then built by preserving the intrinsic graph structure between MRF data nodes and parameter nodes and extended to exploiting the globality of graph structure. Our approach integrates the MRF data recovery and parameter map estimation into a single optimization problem, facilitating reconstructions geared toward quantitative accuracy. Moreover, by introducing graph representation, our methods substantially reduce the computational complexity, with the computational cost showing a minimal increase as the data acquisition length grows. Experiments show that the proposed method can reconstruct high-quality MRF data and multiple parameter maps within reduced computational time.
Peng Li 0063, Yuping Ji, Yue Hu 0003
IEEE Trans. Image Process.2