Search Results for author: Chenyang Lei

Found 17 papers, 14 papers with code

Thin On-Sensor Nanophotonic Array Cameras

no code implementations5 Aug 2023 PRANEETH CHAKRAVARTHULA, Jipeng Sun, Xiao Li, Chenyang Lei, Gene Chou, Mario Bijelic, Johannes Froesch, Arka Majumdar, Felix Heide

The optical array is embedded on a metasurface that, at 700~nm height, is flat and sits on the sensor cover glass at 2. 5~mm focal distance from the sensor.

Blind Video Deflickering by Neural Filtering with a Flawed Atlas

1 code implementation CVPR 2023 Chenyang Lei, Xuanchi Ren, Zhaoxiang Zhang, Qifeng Chen

Prior work usually requires specific guidance such as the flickering frequency, manual annotations, or extra consistent videos to remove the flicker.

Video Generation Video Temporal Consistency

Randomized Quantization: A Generic Augmentation for Data Agnostic Self-supervised Learning

1 code implementation ICCV 2023 Huimin Wu, Chenyang Lei, Xiao Sun, Peng-Shuai Wang, Qifeng Chen, Kwang-Ting Cheng, Stephen Lin, Zhirong Wu

Self-supervised representation learning follows a paradigm of withholding some part of the data and tasking the network to predict it from the remaining part.

Data Augmentation Quantization +2

High-fidelity 3D GAN Inversion by Pseudo-multi-view Optimization

1 code implementation CVPR 2023 Jiaxin Xie, Hao Ouyang, Jingtan Piao, Chenyang Lei, Qifeng Chen

We present a high-fidelity 3D generative adversarial network (GAN) inversion framework that can synthesize photo-realistic novel views while preserving specific details of the input image.

Novel View Synthesis Vocal Bursts Intensity Prediction

Robust Reflection Removal with Flash-only Cues in the Wild

1 code implementation5 Nov 2022 Chenyang Lei, Xudong Jiang, Qifeng Chen

We propose a simple yet effective reflection-free cue for robust reflection removal from a pair of flash and ambient (no-flash) images.

Reflection Removal

Deep Video Prior for Video Consistency and Propagation

1 code implementation27 Jan 2022 Chenyang Lei, Yazhou Xing, Hao Ouyang, Qifeng Chen

A progressive propagation strategy with pseudo labels is also proposed to enhance DVP's performance on video propagation.

Optical Flow Estimation Semantic Segmentation +2

Shape from Polarization for Complex Scenes in the Wild

1 code implementation CVPR 2022 Chenyang Lei, Chenyang Qi, Jiaxin Xie, Na Fan, Vladlen Koltun, Qifeng Chen

We present a new data-driven approach with physics-based priors to scene-level normal estimation from a single polarization image.

Towards Photorealistic Colorization by Imagination

no code implementations20 Aug 2021 Chenyang Lei, Yue Wu, Qifeng Chen

We present a novel approach to automatic image colorization by imitating the imagination process of human experts.

Colorization Image Colorization +1

A Categorized Reflection Removal Dataset with Diverse Real-world Scenes

no code implementations7 Aug 2021 Chenyang Lei, Xuhua Huang, Chenyang Qi, Yankun Zhao, Wenxiu Sun, Qiong Yan, Qifeng Chen

Due to the lack of a large-scale reflection removal dataset with diverse real-world scenes, many existing reflection removal methods are trained on synthetic data plus a small amount of real-world data, which makes it difficult to evaluate the strengths or weaknesses of different reflection removal methods thoroughly.

Reflection Removal

Neural Camera Simulators

1 code implementation CVPR 2021 Hao Ouyang, Zifan Shi, Chenyang Lei, Ka Lung Law, Qifeng Chen

To facilitate the learning of a simulator model, we collect a dataset of the 10, 000 raw images of 450 scenes with different exposure settings.

Data Augmentation

Robust Reflection Removal with Reflection-free Flash-only Cues

1 code implementation CVPR 2021 Chenyang Lei, Qifeng Chen

The flash-only image is equivalent to an image taken in a dark environment with only a flash on.

Reflection Removal SSIM

Blind Video Temporal Consistency via Deep Video Prior

2 code implementations NeurIPS 2020 Chenyang Lei, Yazhou Xing, Qifeng Chen

Extensive quantitative and perceptual experiments show that our approach obtains superior performance than state-of-the-art methods on blind video temporal consistency.

Colorization Image Dehazing +4

Video Depth Estimation by Fusing Flow-to-Depth Proposals

1 code implementation30 Dec 2019 Jiaxin Xie, Chenyang Lei, Zhuwen Li, Li Erran Li, Qifeng Chen

Our flow-to-depth layer is differentiable, and thus we can refine camera poses by maximizing the aggregated confidence in the camera pose refinement module.

Depth Estimation Optical Flow Estimation

Fully Automatic Video Colorization with Self-Regularization and Diversity

4 code implementations CVPR 2019 Chenyang Lei, Qifeng Chen

We present a fully automatic approach to video colorization with self-regularization and diversity.


Cannot find the paper you are looking for? You can Submit a new open access paper.