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NeRF is a popular model that efficiently represents 3D objects from 2D images. However, vanilla NeRF has some important limitations. NeRF must be trained on each object separately. The training time is long since we encode the object's…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Dominik Zimny , Artur Kasymov , Adam Kania , Jacek Tabor , Maciej Zięba , Marcin Mazur , Przemysław Spurek

Cross-modality magnetic resonance (MR) image synthesis can be used to generate missing modalities from given ones. Existing (supervised learning) methods often require a large number of paired multi-modal data to train an effective…

Image and Video Processing · Electrical Eng. & Systems 2023-06-21 Yonghao Li , Tao Zhou , Kelei He , Yi Zhou , Dinggang Shen

Compared to frame-based methods, computational neuromorphic imaging using event cameras offers significant advantages, such as minimal motion blur, enhanced temporal resolution, and high dynamic range. The multi-view consistency of Neural…

Computer Vision and Pattern Recognition · Computer Science 2025-01-08 Chaoran Feng , Wangbo Yu , Xinhua Cheng , Zhenyu Tang , Junwu Zhang , Li Yuan , Yonghong Tian

Neural Radiance Fields (NeRF) have shown promise in generating realistic novel views from sparse scene images. However, existing NeRF approaches often encounter challenges due to the lack of explicit 3D supervision and imprecise camera…

Computer Vision and Pattern Recognition · Computer Science 2024-02-26 Kun Wang , Zhiqiang Yan , Huang Tian , Zhenyu Zhang , Xiang Li , Jun Li , Jian Yang

Transformer architectures, including nnFormer,have demonstrated promising results in volumetric medical image segmentation by being able to capture long-range spatial interactions. Although they have high performance, these models need…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 R. M. Krishna Sureddi , T. Satyanarayana Murthy , Nomula Varsha Reddy , Adi Kanishka , Nalla Manvika Reddy

Neural Radiance Fields (NeRFs) have emerged as a popular approach for novel view synthesis. While NeRFs are quickly being adapted for a wider set of applications, intuitively editing NeRF scenes is still an open challenge. One important…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Ashkan Mirzaei , Tristan Aumentado-Armstrong , Konstantinos G. Derpanis , Jonathan Kelly , Marcus A. Brubaker , Igor Gilitschenski , Alex Levinshtein

Supervised fine-tuning methods (SFT) perform great efficiency on artificial intelligence interpretation in SAR images, leveraging the powerful representation knowledge from pre-training models. Due to the lack of domain-specific pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Xinyang Pu , Feng Xu

As previous representations for reinforcement learning cannot effectively incorporate a human-intuitive understanding of the 3D environment, they usually suffer from sub-optimal performances. In this paper, we present Semantic-aware Neural…

Machine Learning · Computer Science 2023-06-01 Dongseok Shim , Seungjae Lee , H. Jin Kim

This paper introduces a novel continual learning framework for synthesising novel views of multiple scenes, learning multiple 3D scenes incrementally, and updating the network parameters only with the training data of the upcoming new…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Yuze Wang , Junyi Wang , Chen Wang , Wantong Duan , Yongtang Bao , Yue Qi

We address the problem of photorealistic 3D face avatar synthesis from sparse images. Existing Parametric models for face avatar reconstruction struggle to generate details that originate from inputs. Meanwhile, although current NeRF-based…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Weichen Zhang , Xiang Zhou , Yukang Cao , Wensen Feng , Chun Yuan

Neural Radiance Fields (NeRFs) have emerged as a groundbreaking paradigm for representing 3D objects and scenes by encoding shape and appearance information into the weights of a neural network. Recent studies have demonstrated that these…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Francesco Ballerini , Pierluigi Zama Ramirez , Luigi Di Stefano , Samuele Salti

Masked Autoencoders (MAE) play a pivotal role in learning potent representations, delivering outstanding results across various 3D perception tasks essential for autonomous driving. In real-world driving scenarios, it's commonplace to…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Jian Zou , Tianyu Huang , Guanglei Yang , Zhenhua Guo , Tao Luo , Chun-Mei Feng , Wangmeng Zuo

Neural Radiance Fields (NeRF) is a novel implicit 3D reconstruction method that shows immense potential and has been gaining increasing attention. It enables the reconstruction of 3D scenes solely from a set of photographs. However, its…

Computer Vision and Pattern Recognition · Computer Science 2023-10-23 Jiaming Gu , Minchao Jiang , Hongsheng Li , Xiaoyuan Lu , Guangming Zhu , Syed Afaq Ali Shah , Liang Zhang , Mohammed Bennamoun

While deep learning reshaped the classical motion capture pipeline with feed-forward networks, generative models are required to recover fine alignment via iterative refinement. Unfortunately, the existing models are usually hand-crafted or…

Computer Vision and Pattern Recognition · Computer Science 2021-11-01 Shih-Yang Su , Frank Yu , Michael Zollhoefer , Helge Rhodin

Dynamic facial expression recognition (DFER) is essential to the development of intelligent and empathetic machines. Prior efforts in this field mainly fall into supervised learning paradigm, which is severely restricted by the limited…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Licai Sun , Zheng Lian , Bin Liu , Jianhua Tao

While neural radiance fields (NeRF) led to a breakthrough in photorealistic novel view synthesis, handling mirroring surfaces still denotes a particular challenge as they introduce severe inconsistencies in the scene representation.…

Computer Vision and Pattern Recognition · Computer Science 2025-01-09 Leif Van Holland , Michael Weinmann , Jan U. Müller , Patrick Stotko , Reinhard Klein

Masked autoencoders (MAEs) have established themselves as a powerful method for unsupervised pre-training for computer vision tasks. While vanilla MAEs put equal emphasis on reconstructing the individual parts of the image, we propose to…

Computer Vision and Pattern Recognition · Computer Science 2024-02-26 Leon Sick , Dominik Engel , Pedro Hermosilla , Timo Ropinski

Neural Radiance Fields (NeRFs) have emerged as powerful tools for capturing detailed 3D scenes through continuous volumetric representations. Recent NeRFs utilize feature grids to improve rendering quality and speed; however, these…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 Tuan Pham , Stephan Mandt

Neural Radiance Field (NeRF) has emerged as a compelling method to represent 3D objects and scenes for photo-realistic rendering. However, its implicit representation causes difficulty in manipulating the models like the explicit mesh…

Computer Vision and Pattern Recognition · Computer Science 2022-10-14 Jiaxiang Tang , Xiaokang Chen , Jingbo Wang , Gang Zeng

Recent methods for synthesizing 3D-aware face images have achieved rapid development thanks to neural radiance fields, allowing for high quality and fast inference speed. However, existing solutions for editing facial geometry and…

Graphics · Computer Science 2022-11-16 Kaiwen Jiang , Shu-Yu Chen , Feng-Lin Liu , Hongbo Fu , Lin Gao