Search Results for author: Yong-Jie Li

Found 21 papers, 2 papers with code

Weak Supervision with Arbitrary Single Frame for Micro- and Macro-expression Spotting

no code implementations21 Mar 2024 Wang-Wang Yu, Xian-Shi Zhang, Fu-Ya Luo, Yijun Cao, Kai-Fu Yang, Hong-Mei Yan, Yong-Jie Li

Frame-level micro- and macro-expression spotting methods require time-consuming frame-by-frame observation during annotation.

Contrastive Learning Pseudo Label

Nighttime Thermal Infrared Image Colorization with Feedback-based Object Appearance Learning

1 code implementation24 Oct 2023 Fu-Ya Luo, Shu-Lin Liu, Yi-Jun Cao, Kai-Fu Yang, Chang-Yong Xie, Yong liu, Yong-Jie Li

Extensive experiments illustrate that the proposed FoalGAN is not only effective for appearance learning of small objects, but also outperforms other image translation methods in terms of semantic preservation and edge consistency for the NTIR2DC task.

Colorization Generative Adversarial Network +2

Memory-Guided Collaborative Attention for Nighttime Thermal Infrared Image Colorization

1 code implementation5 Aug 2022 Fu-Ya Luo, Yi-Jun Cao, Kai-Fu Yang, Yong-Jie Li

Nighttime thermal infrared (NTIR) image colorization, also known as translation of NTIR images into daytime color images (NTIR2DC), is a promising research direction to facilitate nighttime scene perception for humans and intelligent systems under unfavorable conditions (e. g., complete darkness).

Colorization Generative Adversarial Network +5

Learning to Adapt to Light

no code implementations16 Feb 2022 Kai-Fu Yang, Cheng Cheng, Shi-Xuan Zhao, Xian-Shi Zhang, Yong-Jie Li

Light adaptation or brightness correction is a key step in improving the contrast and visual appeal of an image.

Image Enhancement Tone Mapping

Learning Crisp Boundaries Using Deep Refinement Network and Adaptive Weighting Loss

no code implementations2 Feb 2021 Yi-Jun Cao, Chuan Lin, Yong-Jie Li

Significant progress has been made in boundary detection with the help of convolutional neural networks.

Boundary Detection

A Unified Structure for Efficient RGB and RGB-D Salient Object Detection

no code implementations1 Dec 2020 Peng Peng, Yong-Jie Li

The proposed structure is simple yet effective; the rich context information of RGB and depth can be appropriately extracted and fused by the proposed structure efficiently.

object-detection RGB-D Salient Object Detection +1

Line Drawings of Natural Scenes Guide Visual Attention

no code implementations19 Dec 2019 Kai-Fu Yang, Wen-Wen Jiang, Teng-Fei Zhan, Yong-Jie Li

In order to verify the specific roles of scene layout and regional cues in guiding visual attention, we executed a psychophysical experiment to record the human fixations on line drawings of natural scenes with an eye-tracking system in this work.

Improving Color Constancy by Discounting the Variation of Camera Spectral Sensitivity

no code implementations6 Sep 2016 Shao-Bing Gao, Ming Zhang, Chao-Yi Li, Yong-Jie Li

Most color constancy (CC) models have been designed to first estimate the illuminant color, which is then removed from the color biased image to obtain an image taken under white light, without the explicit consideration of CSS effect on CC.

Color Constancy

Clustering by Hierarchical Nearest Neighbor Descent (H-NND)

no code implementations9 Sep 2015 Teng Qiu, Yong-Jie Li

Due to some beautiful and effective features, this IT structure proves well suited for data clustering.

Clustering

IT-Dendrogram: A New Member of the In-Tree (IT) Clustering Family

no code implementations29 Jul 2015 Teng Qiu, Yong-Jie Li

But if we can effectively map those IT structures into a visualized space in which the salient features of those undesired edges are preserved, then the undesired edges in the IT structures can still be visually determined in a visualization environment.

Clustering

A general framework for the IT-based clustering methods

no code implementations19 Jun 2015 Teng Qiu, Yong-Jie Li

Previously, we proposed a physically inspired rule to organize the data points in a sparse yet effective structure, called the in-tree (IT) graph, which is able to capture a wide class of underlying cluster structures in the datasets, especially for the density-based datasets.

Clustering

Salient Structure Detection by Context-Guided Visual Search

no code implementations17 May 2015 Kai-Fu Yang, Hui Li, Chao-Yi Li, Yong-Jie Li

We define the task of salient structure (SS) detection to unify the saliency-related tasks like fixation prediction, salient object detection, and other detection of structures of interest.

Bayesian Inference Object +3

Nonparametric Nearest Neighbor Descent Clustering based on Delaunay Triangulation

no code implementations17 Feb 2015 Teng Qiu, Yong-Jie Li

In our physically inspired in-tree (IT) based clustering algorithm and the series after it, there is only one free parameter involved in computing the potential value of each point.

Clustering

Clustering by Descending to the Nearest Neighbor in the Delaunay Graph Space

no code implementations16 Feb 2015 Teng Qiu, Yong-Jie Li

In our previous works, we proposed a physically-inspired rule to organize the data points into an in-tree (IT) structure, in which some undesired edges are allowed to occur.

Clustering

IT-map: an Effective Nonlinear Dimensionality Reduction Method for Interactive Clustering

no code implementations26 Jan 2015 Teng Qiu, Yong-Jie Li

Scientists in many fields have the common and basic need of dimensionality reduction: visualizing the underlying structure of the massive multivariate data in a low-dimensional space.

Clustering Dimensionality Reduction

Clustering based on the In-tree Graph Structure and Affinity Propagation

no code implementations18 Jan 2015 Teng Qiu, Yong-Jie Li

A recently proposed clustering method, called the Nearest Descent (ND), can organize the whole dataset into a sparsely connected graph, called the In-tree.

Clustering

An Effective Semi-supervised Divisive Clustering Algorithm

no code implementations24 Dec 2014 Teng Qiu, Yong-Jie Li

Nowadays, data are generated massively and rapidly from scientific fields as bioinformatics, neuroscience and astronomy to business and engineering fields.

Astronomy Clustering

Nearest Descent, In-Tree, and Clustering

no code implementations7 Dec 2014 Teng Qiu, Kai-Fu Yang, Chao-Yi Li, Yong-Jie Li

In particular, the rule of ND works to select the nearest node in the descending direction of potential as the parent node of each node, which is in essence different from the classical Gradient Descent or Steepest Descent.

Clustering

Efficient Color Boundary Detection with Color-Opponent Mechanisms

no code implementations CVPR 2013 Kaifu Yang, Shao-Bing Gao, Chaoyi Li, Yong-Jie Li

Color information plays an important role in better understanding of natural scenes by at least facilitating discriminating boundaries of objects or areas.

Boundary Detection

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