Search Results for author: Zifan Shi

Found 16 papers, 8 papers with code

Real-time 3D-aware Portrait Editing from a Single Image

1 code implementation21 Feb 2024 Qingyan Bai, Zifan Shi, Yinghao Xu, Hao Ouyang, Qiuyu Wang, Ceyuan Yang, Xuan Wang, Gordon Wetzstein, Yujun Shen, Qifeng Chen

Second, thanks to the powerful priors, our module could focus on the learning of editing-related variations, such that it manages to handle various types of editing simultaneously in the training phase and further supports fast adaptation to user-specified customized types of editing during inference (e. g., with ~5min fine-tuning per style).

Learning Naturally Aggregated Appearance for Efficient 3D Editing

1 code implementation11 Dec 2023 Ka Leong Cheng, Qiuyu Wang, Zifan Shi, Kecheng Zheng, Yinghao Xu, Hao Ouyang, Qifeng Chen, Yujun Shen

Neural radiance fields, which represent a 3D scene as a color field and a density field, have demonstrated great progress in novel view synthesis yet are unfavorable for editing due to the implicitness.

Novel View Synthesis

Gaussian Shell Maps for Efficient 3D Human Generation

1 code implementation CVPR 2024 Rameen Abdal, Wang Yifan, Zifan Shi, Yinghao Xu, Ryan Po, Zhengfei Kuang, Qifeng Chen, Dit-yan Yeung, Gordon Wetzstein

Instead of rasterizing the shells directly, we sample 3D Gaussians on the shells whose attributes are encoded in the texture features.

DMV3D: Denoising Multi-View Diffusion using 3D Large Reconstruction Model

no code implementations15 Nov 2023 Yinghao Xu, Hao Tan, Fujun Luan, Sai Bi, Peng Wang, Jiahao Li, Zifan Shi, Kalyan Sunkavalli, Gordon Wetzstein, Zexiang Xu, Kai Zhang

We propose \textbf{DMV3D}, a novel 3D generation approach that uses a transformer-based 3D large reconstruction model to denoise multi-view diffusion.

3D Generation Denoising +2

Exploring Sparse MoE in GANs for Text-conditioned Image Synthesis

1 code implementation7 Sep 2023 Jiapeng Zhu, Ceyuan Yang, Kecheng Zheng, Yinghao Xu, Zifan Shi, Yujun Shen

Due to the difficulty in scaling up, generative adversarial networks (GANs) seem to be falling from grace on the task of text-conditioned image synthesis.

Image Generation Philosophy +1

Learning 3D-aware Image Synthesis with Unknown Pose Distribution

no code implementations CVPR 2023 Zifan Shi, Yujun Shen, Yinghao Xu, Sida Peng, Yiyi Liao, Sheng Guo, Qifeng Chen, Dit-yan Yeung

Existing methods for 3D-aware image synthesis largely depend on the 3D pose distribution pre-estimated on the training set.

3D-Aware Image Synthesis

LinkGAN: Linking GAN Latents to Pixels for Controllable Image Synthesis

no code implementations ICCV 2023 Jiapeng Zhu, Ceyuan Yang, Yujun Shen, Zifan Shi, Bo Dai, Deli Zhao, Qifeng Chen

This work presents an easy-to-use regularizer for GAN training, which helps explicitly link some axes of the latent space to a set of pixels in the synthesized image.

Image Generation

Deep Generative Models on 3D Representations: A Survey

1 code implementation27 Oct 2022 Zifan Shi, Sida Peng, Yinghao Xu, Andreas Geiger, Yiyi Liao, Yujun Shen

In this survey, we thoroughly review the ongoing developments of 3D generative models, including methods that employ 2D and 3D supervision.

3D-Aware Image Synthesis 3D Shape Generation +1

Improving 3D-aware Image Synthesis with A Geometry-aware Discriminator

no code implementations30 Sep 2022 Zifan Shi, Yinghao Xu, Yujun Shen, Deli Zhao, Qifeng Chen, Dit-yan Yeung

We argue that, considering the two-player game in the formulation of GANs, only making the generator 3D-aware is not enough.

3D-Aware Image Synthesis domain classification +2

3D-Aware Indoor Scene Synthesis with Depth Priors

no code implementations17 Feb 2022 Zifan Shi, Yujun Shen, Jiapeng Zhu, Dit-yan Yeung, Qifeng Chen

In this way, the discriminator can take the spatial arrangement into account and advise the generator to learn an appropriate depth condition.

3D-Aware Image Synthesis 3D geometry +2

Stereo Waterdrop Removal with Row-wise Dilated Attention

1 code implementation7 Aug 2021 Zifan Shi, Na Fan, Dit-yan Yeung, Qifeng Chen

Thus, we propose a learning-based model for waterdrop removal with stereo images.

Autonomous Driving

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

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