activity
20182025
most citedDistance-IoU Loss: Faster and Better Learning for Bounding Box Regression

961 citations · 1.5k across the 30 of their papers we have counts for

collaborators

31 papers

cs.CV2025

BasicAVSR: Arbitrary-Scale Video Super-Resolution via Image Priors and Enhanced Motion Compensation

Wei Shang, Wanying Zhang, Shuhang Gu +3

Arbitrary-scale video super-resolution (AVSR) aims to enhance the resolution of video frames, potentially at various scaling factors, which presents several challenges regarding sp…

cs.CV2025

Motion-Aware Adaptive Pixel Pruning for Efficient Local Motion Deblurring

Wei Shang, Dongwei Ren, Wanying Zhang +3

Local motion blur in digital images originates from the relative motion between dynamic objects and static imaging systems during exposure. Existing deblurring methods face signifi…

cs.CV2025

High-Frequency Prior-Driven Adaptive Masking for Accelerating Image Super-Resolution

Wei Shang, Dongwei Ren, Wanying Zhang +3

The primary challenge in accelerating image super-resolution lies in reducing computation while maintaining performance and adaptability. Motivated by the observation that high-fre…

eess.IV2025

Efficient RAW Image Deblurring with Adaptive Frequency Modulation

Wenlong Jiao, Binglong Li, Wei Shang +2

Image deblurring plays a crucial role in enhancing visual clarity across various applications. Although most deep learning approaches primarily focus on sRGB images, which inherent…

cs.CV2024

Generative Inbetweening through Frame-wise Conditions-Driven Video Generation

Tianyi Zhu, Dongwei Ren, Qilong Wang +2

Generative inbetweening aims to generate intermediate frame sequences by utilizing two key frames as input. Although remarkable progress has been made in video generation models, g…

cs.CV2024

Reblurring-Guided Single Image Defocus Deblurring: A Learning Framework with Misaligned Training Pairs

Dongwei Ren, Xinya Shu, Yu Li +3

For single image defocus deblurring, acquiring well-aligned training pairs (or training triplets), i.e., a defocus blurry image, an all-in-focus sharp image (and a defocus blur map…

cs.CV2024

Thin-Plate Spline-based Interpolation for Animation Line Inbetweening

Tianyi Zhu, Wei Shang, Dongwei Ren +1

Animation line inbetweening is a crucial step in animation production aimed at enhancing animation fluidity by predicting intermediate line arts between two key frames. However, ex…

cs.CV2024

SelfDRSC++: Self-Supervised Dual Reversed Rolling Shutter Correction via Video Interpolation

Wei Shang, Dongwei Ren, Wanying Zhang +3

Modern consumer cameras often use rolling shutter, capturing scenes row-by-row and causing distortion in dynamic scenes. Existing correction methods rely on supervised learning wit…

cs.CV2024

Arbitrary-Scale Video Super-Resolution with Structural and Textural Priors

Wei Shang, Dongwei Ren, Wanying Zhang +3

Arbitrary-scale video super-resolution (AVSR) aims to enhance the resolution of video frames, potentially at various scaling factors, which presents several challenges regarding sp…

cs.CV2023

Improving Image Restoration through Removing Degradations in Textual Representations

Jingbo Lin, Zhilu Zhang, Yuxiang Wei +3

In this paper, we introduce a new perspective for improving image restoration by removing degradation in the textual representations of a given degraded image. Intuitively, restora…

cs.CV2023★ 11 cited

Aggregating Nearest Sharp Features via Hybrid Transformers for Video Deblurring

Wei Shang, Dongwei Ren, Yi Yang +1

Video deblurring methods, aiming at recovering consecutive sharp frames from a given blurry video, usually assume that the input video suffers from consecutively blurry frames. How…

cs.CV2023

Self-supervised Learning to Bring Dual Reversed Rolling Shutter Images Alive

Wei Shang, Dongwei Ren, Chaoyu Feng +3

Modern consumer cameras usually employ the rolling shutter (RS) mechanism, where images are captured by scanning scenes row-by-row, yielding RS distortions for dynamic scenes. To c…

cs.CV2023

Joint Video Multi-Frame Interpolation and Deblurring under Unknown Exposure Time

Wei Shang, Dongwei Ren, Yi Yang +3

Natural videos captured by consumer cameras often suffer from low framerate and motion blur due to the combination of dynamic scene complexity, lens and sensor imperfection, and le…

cs.CV2022★ 1 cited

Learning Single Image Defocus Deblurring with Misaligned Training Pairs

Yu Li, Dongwei Ren, Xinya Shu +1

By adopting popular pixel-wise loss, existing methods for defocus deblurring heavily rely on well aligned training image pairs. Although training pairs of ground-truth and blurry i…

cs.CV2022

Robust Deep Ensemble Method for Real-world Image Denoising

Pengju Liu, Hongzhi Zhang, Jinghui Wang +3

Recently, deep learning-based image denoising methods have achieved promising performance on test data with the same distribution as training set, where various denoising models ba…

cs.CV2022

NTIRE 2022 Challenge on Super-Resolution and Quality Enhancement of Compressed Video: Dataset, Methods and Results

Ren Yang, Radu Timofte, Meisong Zheng +75

This paper reviews the NTIRE 2022 Challenge on Super-Resolution and Quality Enhancement of Compressed Video. In this challenge, we proposed the LDV 2.0 dataset, which includes the…

cs.CV2022★ 1 cited

Incorporating Semi-Supervised and Positive-Unlabeled Learning for Boosting Full Reference Image Quality Assessment

Yue Cao, Zhaolin Wan, Dongwei Ren +2

Full-reference (FR) image quality assessment (IQA) evaluates the visual quality of a distorted image by measuring its perceptual difference with pristine-quality reference, and has…

cs.CV2022★ 2 cited

Learning Dual-Pixel Alignment for Defocus Deblurring

Yu Li, Yaling Yi, Dongwei Ren +2

It is a challenging task to recover sharp image from a single defocus blurry image in real-world applications. On many modern cameras, dual-pixel (DP) sensors create two-image view…

cs.CV2022★ 14 cited

Localization Distillation for Object Detection

Zhaohui Zheng, Rongguang Ye, Qibin Hou +4

Previous knowledge distillation (KD) methods for object detection mostly focus on feature imitation instead of mimicking the prediction logits due to its inefficiency in distilling…

cs.CV2021★ 2 cited

Learning Class-Agnostic Pseudo Mask Generation for Box-Supervised Semantic Segmentation

Chaohao Xie, Dongwei Ren, Lei Wang +1

Recently, several weakly supervised learning methods have been devoted to utilize bounding box supervision for training deep semantic segmentation models. Most existing methods usu…

cs.CV2021★ 6 cited

Localization Distillation for Dense Object Detection

Zhaohui Zheng, Rongguang Ye, Ping Wang +4

Knowledge distillation (KD) has witnessed its powerful capability in learning compact models in object detection. Previous KD methods for object detection mostly focus on imitating…

cs.CV2020★ 5 cited

Two-Stage Single Image Reflection Removal with Reflection-Aware Guidance

Yu Li, Ming Liu, Yaling Yi +3

Removing undesired reflection from an image captured through a glass surface is a very challenging problem with many practical application scenarios. For improving reflection remov…

eess.IV2020★ 3 cited

Unpaired Learning of Deep Image Denoising

Xiaohe Wu, Ming Liu, Yue Cao +2

We investigate the task of learning blind image denoising networks from an unpaired set of clean and noisy images. Such problem setting generally is practical and valuable consider…

cs.CV2020★ 84 cited

Enhancing Geometric Factors in Model Learning and Inference for Object Detection and Instance Segmentation

Zhaohui Zheng, Ping Wang, Dongwei Ren +4

Deep learning-based object detection and instance segmentation have achieved unprecedented progress. In this paper, we propose Complete-IoU (CIoU) loss and Cluster-NMS for enhancin…