Search Results for author: Zongyu Guo

Found 14 papers, 7 papers with code

Conditional Neural Video Coding with Spatial-Temporal Super-Resolution

no code implementations25 Jan 2024 Henan Wang, Xiaohan Pan, Runsen Feng, Zongyu Guo, Zhibo Chen

This document is an expanded version of a one-page abstract originally presented at the 2024 Data Compression Conference.

Data Compression Image Compression +2

Spy-Watermark: Robust Invisible Watermarking for Backdoor Attack

no code implementations4 Jan 2024 Ruofei Wang, Renjie Wan, Zongyu Guo, Qing Guo, Rui Huang

Backdoor attack aims to deceive a victim model when facing backdoor instances while maintaining its performance on benign data.

Backdoor Attack backdoor defense

RECOMBINER: Robust and Enhanced Compression with Bayesian Implicit Neural Representations

1 code implementation29 Sep 2023 Jiajun He, Gergely Flamich, Zongyu Guo, José Miguel Hernández-Lobato

COMpression with Bayesian Implicit NEural Representations (COMBINER) is a recent data compression method that addresses a key inefficiency of previous Implicit Neural Representation (INR)-based approaches: it avoids quantization and enables direct optimization of the rate-distortion performance.

Data Compression Quantization

Compression with Bayesian Implicit Neural Representations

1 code implementation NeurIPS 2023 Zongyu Guo, Gergely Flamich, Jiajun He, Zhibo Chen, José Miguel Hernández-Lobato

Many common types of data can be represented as functions that map coordinates to signal values, such as pixel locations to RGB values in the case of an image.

Audio Compression Quantization

NVTC: Nonlinear Vector Transform Coding

1 code implementation CVPR 2023 Runsen Feng, Zongyu Guo, Weiping Li, Zhibo Chen

In theory, vector quantization (VQ) is always better than scalar quantization (SQ) in terms of rate-distortion (R-D) performance.

Image Compression Quantization

Exploring the Rate-Distortion-Complexity Optimization in Neural Image Compression

no code implementations12 May 2023 Yixin Gao, Runsen Feng, Zongyu Guo, Zhibo Chen

By quantifying the decoding complexity as a factor in the optimization goal, we are now able to precisely control the RDC trade-off and then demonstrate how the rate-distortion performance of neural image codecs could adapt to various complexity demands.

Image Compression

Versatile Neural Processes for Learning Implicit Neural Representations

1 code implementation21 Jan 2023 Zongyu Guo, Cuiling Lan, Zhizheng Zhang, Yan Lu, Zhibo Chen

In this paper, we propose an efficient NP framework dubbed Versatile Neural Processes (VNP), which largely increases the capability of approximating functions.

Image Coding for Machines with Omnipotent Feature Learning

no code implementations5 Jul 2022 Ruoyu Feng, Xin Jin, Zongyu Guo, Runsen Feng, Yixin Gao, Tianyu He, Zhizheng Zhang, Simeng Sun, Zhibo Chen

Learning a kind of feature that is both general (for AI tasks) and compact (for compression) is pivotal for its success.

Self-Supervised Learning

Causal Contextual Prediction for Learned Image Compression

no code implementations19 Nov 2020 Zongyu Guo, Zhizheng Zhang, Runsen Feng, Zhibo Chen

In this paper, we propose the concept of separate entropy coding to leverage a serial decoding process for causal contextual entropy prediction in the latent space.

Image Compression MS-SSIM +1

Region Normalization for Image Inpainting

1 code implementation23 Nov 2019 Tao Yu, Zongyu Guo, Xin Jin, Shilin Wu, Zhibo Chen, Weiping Li, Zhizheng Zhang, Sen Liu

In this work, we show that the mean and variance shifts caused by full-spatial FN limit the image inpainting network training and we propose a spatial region-wise normalization named Region Normalization (RN) to overcome the limitation.

Image Inpainting

Progressive Image Inpainting with Full-Resolution Residual Network

2 code implementations24 Jul 2019 Zongyu Guo, Zhibo Chen, Tao Yu, Jiale Chen, Sen Liu

Recently, learning-based algorithms for image inpainting achieve remarkable progress dealing with squared or irregular holes.

Image Inpainting

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