Search Results for author: Yingya Zhang

Found 33 papers, 19 papers with code

A Recipe for Scaling up Text-to-Video Generation with Text-free Videos

1 code implementation25 Dec 2023 Xiang Wang, Shiwei Zhang, Hangjie Yuan, Zhiwu Qing, Biao Gong, Yingya Zhang, Yujun Shen, Changxin Gao, Nong Sang

Following such a pipeline, we study the effect of doubling the scale of training set (i. e., video-only WebVid10M) with some randomly collected text-free videos and are encouraged to observe the performance improvement (FID from 9. 67 to 8. 19 and FVD from 484 to 441), demonstrating the scalability of our approach.

Text-to-Image Generation Text-to-Video Generation +2

InstructVideo: Instructing Video Diffusion Models with Human Feedback

1 code implementation19 Dec 2023 Hangjie Yuan, Shiwei Zhang, Xiang Wang, Yujie Wei, Tao Feng, Yining Pan, Yingya Zhang, Ziwei Liu, Samuel Albanie, Dong Ni

To tackle this problem, we propose InstructVideo to instruct text-to-video diffusion models with human feedback by reward fine-tuning.

Video Generation

AE-NeRF: Audio Enhanced Neural Radiance Field for Few Shot Talking Head Synthesis

no code implementations18 Dec 2023 Dongze Li, Kang Zhao, Wei Wang, Bo Peng, Yingya Zhang, Jing Dong, Tieniu Tan

Audio-driven talking head synthesis is a promising topic with wide applications in digital human, film making and virtual reality.

Talking Head Generation

DreamTalk: When Expressive Talking Head Generation Meets Diffusion Probabilistic Models

no code implementations15 Dec 2023 Yifeng Ma, Shiwei Zhang, Jiayu Wang, Xiang Wang, Yingya Zhang, Zhidong Deng

In this work, we propose a DreamTalk framework to fulfill this gap, which employs meticulous design to unlock the potential of diffusion models in generating expressive talking heads.

Denoising Talking Head Generation

VideoLCM: Video Latent Consistency Model

2 code implementations14 Dec 2023 Xiang Wang, Shiwei Zhang, Han Zhang, Yu Liu, Yingya Zhang, Changxin Gao, Nong Sang

Consistency models have demonstrated powerful capability in efficient image generation and allowed synthesis within a few sampling steps, alleviating the high computational cost in diffusion models.

Computational Efficiency Image Generation +1

Hierarchical Spatio-temporal Decoupling for Text-to-Video Generation

1 code implementation7 Dec 2023 Zhiwu Qing, Shiwei Zhang, Jiayu Wang, Xiang Wang, Yujie Wei, Yingya Zhang, Changxin Gao, Nong Sang

At the structure level, we decompose the T2V task into two steps, including spatial reasoning and temporal reasoning, using a unified denoiser.

Text-to-Video Generation Video Generation

DreamVideo: Composing Your Dream Videos with Customized Subject and Motion

1 code implementation7 Dec 2023 Yujie Wei, Shiwei Zhang, Zhiwu Qing, Hangjie Yuan, Zhiheng Liu, Yu Liu, Yingya Zhang, Jingren Zhou, Hongming Shan

In motion learning, we architect a motion adapter and fine-tune it on the given videos to effectively model the target motion pattern.

Image Generation Video Generation

I2VGen-XL: High-Quality Image-to-Video Synthesis via Cascaded Diffusion Models

3 code implementations7 Nov 2023 Shiwei Zhang, Jiayu Wang, Yingya Zhang, Kang Zhao, Hangjie Yuan, Zhiwu Qin, Xiang Wang, Deli Zhao, Jingren Zhou

By this means, I2VGen-XL can simultaneously enhance the semantic accuracy, continuity of details and clarity of generated videos.

Few-shot Action Recognition with Captioning Foundation Models

no code implementations16 Oct 2023 Xiang Wang, Shiwei Zhang, Hangjie Yuan, Yingya Zhang, Changxin Gao, Deli Zhao, Nong Sang

In this paper, we develop an effective plug-and-play framework called CapFSAR to exploit the knowledge of multimodal models without manually annotating text.

Few-Shot action recognition Few Shot Action Recognition

DeltaSpace: A Semantic-aligned Feature Space for Flexible Text-guided Image Editing

1 code implementation12 Oct 2023 Yueming Lyu, Kang Zhao, Bo Peng, Yue Jiang, Yingya Zhang, Jing Dong

Based on DeltaSpace, we propose a novel framework called DeltaEdit, which maps the CLIP visual feature differences to the latent space directions of a generative model during the training phase, and predicts the latent space directions from the CLIP textual feature differences during the inference phase.

text-guided-image-editing

Disentangling Spatial and Temporal Learning for Efficient Image-to-Video Transfer Learning

1 code implementation ICCV 2023 Zhiwu Qing, Shiwei Zhang, Ziyuan Huang, Yingya Zhang, Changxin Gao, Deli Zhao, Nong Sang

When pre-training on the large-scale Kinetics-710, we achieve 89. 7% on Kinetics-400 with a frozen ViT-L model, which verifies the scalability of DiST.

Transfer Learning Video Recognition

RLIPv2: Fast Scaling of Relational Language-Image Pre-training

3 code implementations ICCV 2023 Hangjie Yuan, Shiwei Zhang, Xiang Wang, Samuel Albanie, Yining Pan, Tao Feng, Jianwen Jiang, Dong Ni, Yingya Zhang, Deli Zhao

In this paper, we propose RLIPv2, a fast converging model that enables the scaling of relational pre-training to large-scale pseudo-labelled scene graph data.

 Ranked #1 on Zero-Shot Human-Object Interaction Detection on HICO-DET (using extra training data)

Graph Generation Human-Object Interaction Detection +6

ModelScope Text-to-Video Technical Report

3 code implementations12 Aug 2023 Jiuniu Wang, Hangjie Yuan, Dayou Chen, Yingya Zhang, Xiang Wang, Shiwei Zhang

This paper introduces ModelScopeT2V, a text-to-video synthesis model that evolves from a text-to-image synthesis model (i. e., Stable Diffusion).

Denoising Image Generation +1

CMDFusion: Bidirectional Fusion Network with Cross-modality Knowledge Distillation for LIDAR Semantic Segmentation

1 code implementation9 Jul 2023 Jun Cen, Shiwei Zhang, Yixuan Pei, Kun Li, Hang Zheng, Maochun Luo, Yingya Zhang, Qifeng Chen

In this way, RGB images are not required during inference anymore since the 2D knowledge branch provides 2D information according to the 3D LIDAR input.

Autonomous Vehicles Knowledge Distillation +2

Freestyle 3D-Aware Portrait Synthesis Based on Compositional Generative Priors

no code implementations27 Jun 2023 Tianxiang Ma, Kang Zhao, Jianxin Sun, Yingya Zhang, Jing Dong

Efficiently generating a freestyle 3D portrait with high quality and 3D-consistency is a promising yet challenging task.

MoLo: Motion-augmented Long-short Contrastive Learning for Few-shot Action Recognition

1 code implementation CVPR 2023 Xiang Wang, Shiwei Zhang, Zhiwu Qing, Changxin Gao, Yingya Zhang, Deli Zhao, Nong Sang

To address these issues, we develop a Motion-augmented Long-short Contrastive Learning (MoLo) method that contains two crucial components, including a long-short contrastive objective and a motion autodecoder.

Contrastive Learning Few-Shot action recognition +1

Enlarging Instance-specific and Class-specific Information for Open-set Action Recognition

1 code implementation CVPR 2023 Jun Cen, Shiwei Zhang, Xiang Wang, Yixuan Pei, Zhiwu Qing, Yingya Zhang, Qifeng Chen

In this paper, we begin with analyzing the feature representation behavior in the open-set action recognition (OSAR) problem based on the information bottleneck (IB) theory, and propose to enlarge the instance-specific (IS) and class-specific (CS) information contained in the feature for better performance.

Open Set Action Recognition

VideoFusion: Decomposed Diffusion Models for High-Quality Video Generation

1 code implementation CVPR 2023 Zhengxiong Luo, Dayou Chen, Yingya Zhang, Yan Huang, Liang Wang, Yujun Shen, Deli Zhao, Jingren Zhou, Tieniu Tan

A diffusion probabilistic model (DPM), which constructs a forward diffusion process by gradually adding noise to data points and learns the reverse denoising process to generate new samples, has been shown to handle complex data distribution.

Code Generation Denoising +4

CLIP-guided Prototype Modulating for Few-shot Action Recognition

1 code implementation6 Mar 2023 Xiang Wang, Shiwei Zhang, Jun Cen, Changxin Gao, Yingya Zhang, Deli Zhao, Nong Sang

Learning from large-scale contrastive language-image pre-training like CLIP has shown remarkable success in a wide range of downstream tasks recently, but it is still under-explored on the challenging few-shot action recognition (FSAR) task.

Few-Shot action recognition Few Shot Action Recognition

The Devil is in the Wrongly-classified Samples: Towards Unified Open-set Recognition

1 code implementation8 Feb 2023 Jun Cen, Di Luan, Shiwei Zhang, Yixuan Pei, Yingya Zhang, Deli Zhao, Shaojie Shen, Qifeng Chen

Recently, Unified Open-set Recognition (UOSR) has been proposed to reject not only unknown samples but also known but wrongly classified samples, which tends to be more practical in real-world applications.

Open Set Learning

Space-time Prompting for Video Class-incremental Learning

no code implementations ICCV 2023 Yixuan Pei, Zhiwu Qing, Shiwei Zhang, Xiang Wang, Yingya Zhang, Deli Zhao, Xueming Qian

In this paper, we will fill this gap by learning multiple prompts based on a powerful image-language pre-trained model, i. e., CLIP, making it fit for video class-incremental learning (VCIL).

Class Incremental Learning Incremental Learning

Revisiting Optimal Convergence Rate for Smooth and Non-convex Stochastic Decentralized Optimization

no code implementations14 Oct 2022 Kun Yuan, Xinmeng Huang, Yiming Chen, Xiaohan Zhang, Yingya Zhang, Pan Pan

While (Lu and Sa, 2021) have recently provided an optimal rate for non-convex stochastic decentralized optimization with weight matrices defined over linear graphs, the optimal rate with general weight matrices remains unclear.

Communicate Then Adapt: An Effective Decentralized Adaptive Method for Deep Training

no code implementations29 Sep 2021 Bicheng Ying, Kun Yuan, Yiming Chen, Hanbin Hu, Yingya Zhang, Pan Pan, Wotao Yin

Decentralized adaptive gradient methods, in which each node averages only with its neighbors, are critical to save communication and wall-clock training time in deep learning tasks.

Communication Efficient SGD via Gradient Sampling With Bayes Prior

no code implementations CVPR 2021 Liuyihan Song, Kang Zhao, Pan Pan, Yu Liu, Yingya Zhang, Yinghui Xu, Rong Jin

Different from all of them, we regard large and small gradients selection as the exploitation and exploration of gradient information, respectively.

Image Classification object-detection +2

DecentLaM: Decentralized Momentum SGD for Large-batch Deep Training

1 code implementation ICCV 2021 Kun Yuan, Yiming Chen, Xinmeng Huang, Yingya Zhang, Pan Pan, Yinghui Xu, Wotao Yin

Experimental results on a variety of computer vision tasks and models demonstrate that DecentLaM promises both efficient and high-quality training.

Visual Search at Alibaba

no code implementations9 Feb 2021 Yanhao Zhang, Pan Pan, Yun Zheng, Kang Zhao, Yingya Zhang, Xiaofeng Ren, Rong Jin

We hope visual search at Alibaba becomes more widely incorporated into today's commercial applications.

Image Retrieval

Large-Scale Visual Search with Binary Distributed Graph at Alibaba

no code implementations9 Feb 2021 Kang Zhao, Pan Pan, Yun Zheng, Yanhao Zhang, Changxu Wang, Yingya Zhang, Yinghui Xu, Rong Jin

For a deployed visual search system with several billions of online images in total, building a billion-scale offline graph in hours is essential, which is almost unachievable by most existing methods.

graph construction

Distribution Adaptive INT8 Quantization for Training CNNs

no code implementations9 Feb 2021 Kang Zhao, Sida Huang, Pan Pan, Yinghan Li, Yingya Zhang, Zhenyu Gu, Yinghui Xu

Researches have demonstrated that low bit-width (e. g., INT8) quantization can be employed to accelerate the inference process.

Image Classification object-detection +3

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