J
Jun Liu
Researcher at Beijing Normal University
Publications - 37
Citations - 561
Jun Liu is an academic researcher from Beijing Normal University. The author has contributed to research in topics: Image segmentation & Segmentation. The author has an hindex of 11, co-authored 37 publications receiving 393 citations. Previous affiliations of Jun Liu include Hong Kong Baptist University & Chinese Ministry of Education.
Papers
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Journal ArticleDOI
A Weighted Dictionary Learning Model for Denoising Images Corrupted by Mixed Noise
TL;DR: Rather than optimizing the likelihood functional derived from a mixture distribution, this paper presents a new weighting data fidelity function, which has the same minimizer as the original likelihood functional but is much easier to optimize.
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Image Segmentation Using a Local GMM in a Variational Framework
Jun Liu,Haili Zhang +1 more
TL;DR: A new variational framework to solve the Gaussian mixture model (GMM) based methods for image segmentation by employing the convex relaxation approach, which can achieve promising segmentation performance for images degraded by intensity inhomogeneity and noise.
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A fast segmentation method based on constraint optimization and its applications: Intensity inhomogeneity and texture segmentation
TL;DR: Compared with other approaches such as level set method, the experimental results have shown that the approach greatly improves the calculation efficiency without losing segmentation accuracy.
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Learning a Discriminative Distance Metric With Label Consistency for Scene Classification
Yuebin Wang,Liqiang Zhang,Hao Deng,Jiwen Lu,Haiyang Huang,Liang Zhang,Jun Liu,Hong Tang,Xiaoyue Xing +8 more
TL;DR: The proposed discriminative distance metric learning method with LC (DDML-LC) starts from the dense scale invariant feature transformation features extracted from HSR-RSIs, and then uses spatial pyramid maximum pooling with sparse coding to encode the features.
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Nonnegative and Nonlocal Sparse Tensor Factorization-Based Hyperspectral Image Super-Resolution
TL;DR: This article proposes a novel nonnegative and nonlocal 4-D tensor dictionary learning-based HSI super-resolution model using group-block sparsity that outperforms many state-of-the-art HSIsuper-resolution methods.