Search Results for author: Tongda Xu

Found 24 papers, 7 papers with code

Task-Aware Encoder Control for Deep Video Compression

no code implementations7 Apr 2024 Xingtong Ge, Jixiang Luo, Xinjie Zhang, Tongda Xu, Guo Lu, Dailan He, Jing Geng, Yan Wang, Jun Zhang, Hongwei Qin

Prior research on deep video compression (DVC) for machine tasks typically necessitates training a unique codec for each specific task, mandating a dedicated decoder per task.

Video Compression

Content-aware Masked Image Modeling Transformer for Stereo Image Compression

no code implementations13 Mar 2024 Xinjie Zhang, Shenyuan Gao, Zhening Liu, Jiawei Shao, Xingtong Ge, Dailan He, Tongda Xu, Yan Wang, Jun Zhang

Existing learning-based stereo image codec adopt sophisticated transformation with simple entropy models derived from single image codecs to encode latent representations.

Image Compression

GaussianImage: 1000 FPS Image Representation and Compression by 2D Gaussian Splatting

1 code implementation13 Mar 2024 Xinjie Zhang, Xingtong Ge, Tongda Xu, Dailan He, Yan Wang, Hongwei Qin, Guo Lu, Jing Geng, Jun Zhang

In response, we propose a groundbreaking paradigm of image representation and compression by 2D Gaussian Splatting, named GaussianImage.

Quantization

Boosting Neural Representations for Videos with a Conditional Decoder

1 code implementation28 Feb 2024 Xinjie Zhang, Ren Yang, Dailan He, Xingtong Ge, Tongda Xu, Yan Wang, Hongwei Qin, Jun Zhang

Implicit neural representations (INRs) have emerged as a promising approach for video storage and processing, showing remarkable versatility across various video tasks.

EMIFF: Enhanced Multi-scale Image Feature Fusion for Vehicle-Infrastructure Cooperative 3D Object Detection

1 code implementation23 Feb 2024 Zhe Wang, Siqi Fan, Xiaoliang Huo, Tongda Xu, Yan Wang, Jingjing Liu, Yilun Chen, Ya-Qin Zhang

In autonomous driving, cooperative perception makes use of multi-view cameras from both vehicles and infrastructure, providing a global vantage point with rich semantic context of road conditions beyond a single vehicle viewpoint.

3D Object Detection Autonomous Driving +2

Idempotence and Perceptual Image Compression

1 code implementation17 Jan 2024 Tongda Xu, Ziran Zhu, Dailan He, Yanghao Li, Lina Guo, Yuanyuan Wang, Zhe Wang, Hongwei Qin, Yan Wang, Jingjing Liu, Ya-Qin Zhang

However, we find that theoretically: 1) Conditional generative model-based perceptual codec satisfies idempotence; 2) Unconditional generative model with idempotence constraint is equivalent to conditional generative codec.

Image Compression

Unified learning-based lossy and lossless JPEG recompression

no code implementations5 Dec 2023 Jianghui Zhang, Yuanyuan Wang, Lina Guo, Jixiang Luo, Tongda Xu, Yan Wang, Zhi Wang, Hongwei Qin

Most image compression algorithms only consider uncompressed original image, while ignoring a large number of already existing JPEG images.

Image Compression Quantization

Bandwidth-efficient Inference for Neural Image Compression

no code implementations6 Sep 2023 Shanzhi Yin, Tongda Xu, Yongsheng Liang, Yuanyuan Wang, Yanghao Li, Yan Wang, Jingjing Liu

With neural networks growing deeper and feature maps growing larger, limited communication bandwidth with external memory (or DRAM) and power constraints become a bottleneck in implementing network inference on mobile and edge devices.

Data Compression Image Compression +1

Efficient Learned Lossless JPEG Recompression

no code implementations25 Aug 2023 Lina Guo, Yuanyuan Wang, Tongda Xu, Jixiang Luo, Dailan He, Zhenjun Ji, Shanshan Wang, Yang Wang, Hongwei Qin

Second, we propose pipeline parallel context model (PPCM) and compressed checkerboard context model (CCCM) for the effective conditional modeling and efficient decoding within luma and chroma components.

Image Compression Quantization

Conditional Perceptual Quality Preserving Image Compression

no code implementations16 Aug 2023 Tongda Xu, Qian Zhang, Yanghao Li, Dailan He, Zhe Wang, Yuanyuan Wang, Hongwei Qin, Yan Wang, Jingjing Liu, Ya-Qin Zhang

We propose conditional perceptual quality, an extension of the perceptual quality defined in \citet{blau2018perception}, by conditioning it on user defined information.

Image Compression

VIMI: Vehicle-Infrastructure Multi-view Intermediate Fusion for Camera-based 3D Object Detection

2 code implementations20 Mar 2023 Zhe Wang, Siqi Fan, Xiaoliang Huo, Tongda Xu, Yan Wang, Jingjing Liu, Yilun Chen, Ya-Qin Zhang

In autonomous driving, Vehicle-Infrastructure Cooperative 3D Object Detection (VIC3D) makes use of multi-view cameras from both vehicles and traffic infrastructure, providing a global vantage point with rich semantic context of road conditions beyond a single vehicle viewpoint.

3D Object Detection Autonomous Driving +2

GeneFormer: Learned Gene Compression using Transformer-based Context Modeling

no code implementations16 Dec 2022 Zhanbei Cui, Yu Liao, Tongda Xu, Yan Wang

Then, we propose fixed-length parallel grouping to accelerate the decoding speed of our autoregressive model.

Data Compression

ECM-OPCC: Efficient Context Model for Octree-based Point Cloud Compression

no code implementations20 Nov 2022 Yiqi Jin, Ziyu Zhu, Tongda Xu, Yuhuan Lin, Yan Wang

For octree-based point cloud compression, previous works show that the information of ancestor nodes and sibling nodes are equally important for predicting current node.

Spatial Moment Pooling Improves Neural Image Assessment

no code implementations29 Sep 2022 Tongda Xu, Yifan Shao, Yan Wang, Hongwei Qin

In recent years, there has been widespread attention drawn to convolutional neural network (CNN) based blind image quality assessment (IQA).

Blind Image Quality Assessment

Flexible Neural Image Compression via Code Editing

no code implementations19 Sep 2022 Chenjian Gao, Tongda Xu, Dailan He, Hongwei Qin, Yan Wang

Neural image compression (NIC) has outperformed traditional image codecs in rate-distortion (R-D) performance.

Image Compression Quantization

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