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Generating free-viewpoint videos is critical for immersive VR/AR experience but recent neural advances still lack the editing ability to manipulate the visual perception for large dynamic scenes. To fill this gap, in this paper we propose…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 Jiakai Zhang , Xinhang Liu , Xinyi Ye , Fuqiang Zhao , Yanshun Zhang , Minye Wu , Yingliang Zhang , Lan Xu , Jingyi Yu

Existing neural radiance fields (NeRF) methods for large-scale scene modeling require days of training using multiple GPUs, hindering their applications in scenarios with limited computing resources. Despite fast optimization NeRF variants…

Computer Vision and Pattern Recognition · Computer Science 2023-03-08 Yuqi Zhang , Guanying Chen , Shuguang Cui

We explore novel-view synthesis for dynamic scenes from monocular videos. Prior approaches rely on costly test-time optimization of 4D representations or do not preserve scene geometry when trained in a feed-forward manner. Our approach is…

Computer Vision and Pattern Recognition · Computer Science 2026-01-14 Kaihua Chen , Tarasha Khurana , Deva Ramanan

In recent years, coordinate-based neural implicit representations have shown promising results for the task of Simultaneous Localization and Mapping (SLAM). While achieving impressive performance on small synthetic scenes, these methods…

Computer Vision and Pattern Recognition · Computer Science 2023-12-04 Kunyi Li , Michael Niemeyer , Nassir Navab , Federico Tombari

NeRF synthesizes novel views of a scene with unprecedented quality by fitting a neural radiance field to RGB images. However, NeRF requires querying a deep Multi-Layer Perceptron (MLP) millions of times, leading to slow rendering times,…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Christian Reiser , Songyou Peng , Yiyi Liao , Andreas Geiger

Multi-View Stereo (MVS) is a core task in 3D computer vision. With the surge of novel deep learning methods, learned MVS has surpassed the accuracy of classical approaches, but still relies on building a memory intensive dense cost volume.…

Computer Vision and Pattern Recognition · Computer Science 2022-06-16 Radu Alexandru Rosu , Sven Behnke

Neuromorphic vision sensing (NVS)\ devices represent visual information as sequences of asynchronous discrete events (a.k.a., ``spikes'') in response to changes in scene reflectance. Unlike conventional active pixel sensing (APS), NVS…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Yin Bi , Aaron Chadha , Alhabib Abbas , Eirina Bourtsoulatze , Yiannis Andreopoulos

We introduce Continual 3D Convolutional Neural Networks (Co3D CNNs), a new computational formulation of spatio-temporal 3D CNNs, in which videos are processed frame-by-frame rather than by clip. In online tasks demanding frame-wise…

Computer Vision and Pattern Recognition · Computer Science 2023-01-25 Lukas Hedegaard , Alexandros Iosifidis

Recent advancements in 4D scene reconstruction using neural radiance fields (NeRF) have demonstrated the ability to represent dynamic scenes from multi-view videos. However, they fail to reconstruct the dynamic scenes and struggle to fit…

Computer Vision and Pattern Recognition · Computer Science 2024-08-14 Seoha Kim , Jeongmin Bae , Youngsik Yun , Hahyun Lee , Gun Bang , Youngjung Uh

We present a method that achieves state-of-the-art results for synthesizing novel views of complex scenes by optimizing an underlying continuous volumetric scene function using a sparse set of input views. Our algorithm represents a scene…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Ben Mildenhall , Pratul P. Srinivasan , Matthew Tancik , Jonathan T. Barron , Ravi Ramamoorthi , Ren Ng

This paper proposes a novel memory-based online video representation that is efficient, accurate and predictive. This is in contrast to prior works that often rely on computationally heavy 3D convolutions, ignore actual motion when aligning…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Tuan-Hung Vu , Wongun Choi , Samuel Schulter , Manmohan Chandraker

Reconstructing dynamic, time-varying scenes with computed tomography (4D-CT) is a challenging and ill-posed problem common to industrial and medical settings. Existing 4D-CT reconstructions are designed for sparse sampling schemes that…

Image and Video Processing · Electrical Eng. & Systems 2021-04-26 Albert W. Reed , Hyojin Kim , Rushil Anirudh , K. Aditya Mohan , Kyle Champley , Jingu Kang , Suren Jayasuriya

Adopting Neural Radiance Fields (NeRF) to long-duration dynamic sequences has been challenging. Existing methods struggle to balance between quality and storage size and encounter difficulties with complex scene changes such as topological…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Minye Wu , Tinne Tuytelaars

Real-time visibility determination in expansive or dynamically changing environments has long posed a significant challenge in computer graphics. Existing techniques are computationally expensive and often applied as a precomputation step…

Graphics · Computer Science 2025-09-30 Xiangyu Wang , Thomas Köhler , Jun Lin Qiu , Shohei Mori , Markus Steinberger , Dieter Schmalstieg

Due to the high activation sparsity and use of accumulates (AC) instead of expensive multiply-and-accumulates (MAC), neuromorphic spiking neural networks (SNNs) have emerged as a promising low-power alternative to traditional DNNs for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-22 Gourav Datta , Zeyu Liu , Md Abdullah-Al Kaiser , Souvik Kundu , Joe Mathai , Zihan Yin , Ajey P. Jacob , Akhilesh R. Jaiswal , Peter A. Beerel

Neural implicit representations have been explored to enhance visual SLAM algorithms, especially in providing high-fidelity dense map. Existing methods operate robustly in static scenes but struggle with the disruption caused by moving…

Robotics · Computer Science 2024-05-17 Ziheng Xu , Jianwei Niu , Qingfeng Li , Tao Ren , Chen Chen

NeRF aims to learn a continuous neural scene representation by using a finite set of input images taken from various viewpoints. A well-known limitation of NeRF methods is their reliance on data: the fewer the viewpoints, the higher the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Matteo Bortolon , Alessio Del Bue , Fabio Poiesi

Large-scale 3D scene reconstruction and novel view synthesis are vital for autonomous vehicles, especially utilizing temporally sparse LiDAR frames. However, conventional explicit representations remain a significant bottleneck towards…

Computer Vision and Pattern Recognition · Computer Science 2024-02-15 Xiuzhong Hu , Guangming Xiong , Zheng Zang , Peng Jia , Yuxuan Han , Junyi Ma

The challenge of graphically rendering high frame-rate videos on low compute devices can be addressed through periodic prediction of future frames to enhance the user experience in virtual reality applications. This is studied through the…

Computer Vision and Pattern Recognition · Computer Science 2023-09-15 Nagabhushan Somraj , Pranali Sancheti , Rajiv Soundararajan

Deep convolutional networks have recently achieved great success in video recognition, yet their practical realization remains a challenge due to the large amount of computational resources required to achieve robust recognition. Motivated…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Ximeng Sun , Rameswar Panda , Chun-Fu Chen , Aude Oliva , Rogerio Feris , Kate Saenko