Search Results for author: Peng Zheng

Found 20 papers, 6 papers with code

D-Aug: Enhancing Data Augmentation for Dynamic LiDAR Scenes

no code implementations17 Apr 2024 Jiaxing Zhao, Peng Zheng, Rui Ma

To address this issue, we propose D-Aug, a LiDAR data augmentation method tailored for augmenting dynamic scenes.

Autonomous Driving Data Augmentation

SemanticHuman-HD: High-Resolution Semantic Disentangled 3D Human Generation

no code implementations15 Mar 2024 Peng Zheng, Tao Liu, Zili Yi, Rui Ma

Notably, SemanticHuman-HD is also the first method to achieve 3D-aware image synthesis at $1024^2$ resolution, benefiting from our proposed 3D-aware super-resolution module.

3D-Aware Image Synthesis Disentanglement +1

TaylorGrid: Towards Fast and High-Quality Implicit Field Learning via Direct Taylor-based Grid Optimization

no code implementations22 Feb 2024 Renyi Mao, Qingshan Xu, Peng Zheng, Ye Wang, Tieru Wu, Rui Ma

In this paper, we aim for both fast and high-quality implicit field learning, and propose TaylorGrid, a novel implicit field representation which can be efficiently computed via direct Taylor expansion optimization on 2D or 3D grids.

Novel View Synthesis

Discriminative Consensus Mining with A Thousand Groups for More Accurate Co-Salient Object Detection

no code implementations15 Jan 2024 Peng Zheng

Co-Salient Object Detection (CoSOD) is a rapidly growing task, extended from Salient Object Detection (SOD) and Common Object Segmentation (Co-Segmentation).

Co-Salient Object Detection Object +3

3D-SSGAN: Lifting 2D Semantics for 3D-Aware Compositional Portrait Synthesis

no code implementations8 Jan 2024 Ruiqi Liu, Peng Zheng, Ye Wang, Rui Ma

Conversely, some GAN-based 2D portrait synthesis methods can achieve clear disentanglement of facial regions, but they cannot preserve view consistency due to a lack of 3D modeling abilities.

Disentanglement Image Generation

Bilateral Reference for High-Resolution Dichotomous Image Segmentation

1 code implementation7 Jan 2024 Peng Zheng, Dehong Gao, Deng-Ping Fan, Li Liu, Jorma Laaksonen, Wanli Ouyang, Nicu Sebe

It comprises two essential components: the localization module (LM) and the reconstruction module (RM) with our proposed bilateral reference (BiRef).

 Ranked #1 on RGB Salient Object Detection on HRSOD (using extra training data)

Camouflaged Object Segmentation Dichotomous Image Segmentation +3

Harnessing the Power of Text-image Contrastive Models for Automatic Detection of Online Misinformation

no code implementations19 Apr 2023 Hao Chen, Peng Zheng, Xin Wang, Shu Hu, Bin Zhu, Jinrong Hu, Xi Wu, Siwei Lyu

As growing usage of social media websites in the recent decades, the amount of news articles spreading online rapidly, resulting in an unprecedented scale of potentially fraudulent information.

Contrastive Learning Misinformation +1

Memory-aided Contrastive Consensus Learning for Co-salient Object Detection

2 code implementations28 Feb 2023 Peng Zheng, Jie Qin, Shuo Wang, Tian-Zhu Xiang, Huan Xiong

To learn better group consensus, we propose the Group Consensus Aggregation Module (GCAM) to abstract the common features of each image group; meanwhile, to make the consensus representation more discriminative, we introduce the Memory-based Contrastive Module (MCM), which saves and updates the consensus of images from different groups in a queue of memories.

Co-Salient Object Detection object-detection +1

GCoNet+: A Stronger Group Collaborative Co-Salient Object Detector

2 code implementations30 May 2022 Peng Zheng, Huazhu Fu, Deng-Ping Fan, Qi Fan, Jie Qin, Yu-Wing Tai, Chi-Keung Tang, Luc van Gool

In this paper, we present a novel end-to-end group collaborative learning network, termed GCoNet+, which can effectively and efficiently (250 fps) identify co-salient objects in natural scenes.

Co-Salient Object Detection Object +2

MovieNet-PS: A Large-Scale Person Search Dataset in the Wild

1 code implementation5 Dec 2021 Jie Qin, Peng Zheng, Yichao Yan, Rong Quan, Xiaogang Cheng, Bingbing Ni

Person search aims to jointly localize and identify a query person from natural, uncropped images, which has been actively studied over the past few years.

Person Search

A unified sparse optimization framework to learn parsimonious physics-informed models from data

4 code implementations25 Jun 2019 Kathleen Champion, Peng Zheng, Aleksandr Y. Aravkin, Steven L. Brunton, J. Nathan Kutz

This flexible approach can be tailored to the unique challenges associated with a wide range of applications and data sets, providing a powerful ML-based framework for learning governing models for physical systems from data.

Object Detection with Deep Learning: A Review

no code implementations15 Jul 2018 Zhong-Qiu Zhao, Peng Zheng, Shou-tao Xu, Xindong Wu

Traditional object detection methods are built on handcrafted features and shallow trainable architectures.

Face Detection Object +4

A Unified Framework for Sparse Relaxed Regularized Regression: SR3

no code implementations14 Jul 2018 Peng Zheng, Travis Askham, Steven L. Brunton, J. Nathan Kutz, Aleksandr Y. Aravkin

We demonstrate the advantages of SR3 (computational efficiency, higher accuracy, faster convergence rates, greater flexibility) across a range of regularized regression problems with synthetic and real data, including applications in compressed sensing, LASSO, matrix completion, TV regularization, and group sparsity.

Computational Efficiency Matrix Completion +3

Computer Assisted Localization of a Heart Arrhythmia

no code implementations9 Jul 2018 Chris Vogl, Peng Zheng, Stephen P. Seslar, Aleksandr Y. Aravkin

We consider the problem of locating a point-source heart arrhythmia using data from a standard diagnostic procedure, where a reference catheter is placed in the heart, and arrival times from a second diagnostic catheter are recorded as the diagnostic catheter moves around within the heart.

Anatomy

Sparse Principal Component Analysis via Variable Projection

no code implementations1 Apr 2018 N. Benjamin Erichson, Peng Zheng, Krithika Manohar, Steven L. Brunton, J. Nathan Kutz, Aleksandr Y. Aravkin

Sparse principal component analysis (SPCA) has emerged as a powerful technique for modern data analysis, providing improved interpretation of low-rank structures by identifying localized spatial structures in the data and disambiguating between distinct time scales.

Computational Efficiency

Learning Robust Representations for Computer Vision

no code implementations31 Jul 2017 Peng Zheng, Aleksandr Y. Aravkin, Karthikeyan Natesan Ramamurthy, Jayaraman Jayaraman Thiagarajan

Unsupervised learning techniques in computer vision often require learning latent representations, such as low-dimensional linear and non-linear subspaces.

Clustering Representation Learning

Estimating Shape Parameters of Piecewise Linear-Quadratic Problems

no code implementations6 Jun 2017 Peng Zheng, Aleksandr Y. Aravkin, Karthikeyan Natesan Ramamurthy

The normalization constant inherent in this requirement helps to inform the optimization over shape parameters, giving a joint optimization problem over these as well as primary parameters of interest.

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