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Vision-based perception systems are typically exposed to large orientation changes in different robot applications. In such conditions, their performance might be compromised due to the inherent complexity of processing data captured under…

This paper presents a deep learning-based video compression framework (ViSTRA3). The proposed framework intelligently adapts video format parameters of the input video before encoding, subsequently employing a CNN at the decoder to restore…

图像与视频处理 · 电气工程与系统科学 2021-12-01 Chen Feng , Duolikun Danier , Charlie Tan , Fan Zhang , David Bull

Recent studies on motion estimation have advocated an optimized motion representation that is globally consistent across the entire video, preferably for every pixel. This is challenging as a uniform representation may not account for the…

计算机视觉与模式识别 · 计算机科学 2024-07-17 Rui Li , Dong Liu

Modern feed-forward 3D reconstruction methods like VGGT predict pixel-aligned pointmaps in camera-centric coordinate frames. However, this choice of coordinate frame is not always optimal. We propose instead to predict pointmaps in upright,…

计算机视觉与模式识别 · 计算机科学 2026-05-27 Bharath Raj Nagoor Kani , Noah Snavely

We develop a technique for generating smooth and accurate 3D human pose and motion estimates from RGB video sequences. Our method, which we call Motion Estimation via Variational Autoencoder (MEVA), decomposes a temporal sequence of human…

计算机视觉与模式识别 · 计算机科学 2020-10-07 Zhengyi Luo , S. Alireza Golestaneh , Kris M. Kitani

Recently, learned video compression (LVC) has shown superior performance under low-delay configuration. However, the performance of learned bi-directional video compression (LBVC) still lags behind traditional bi-directional coding. The…

计算机视觉与模式识别 · 计算机科学 2025-04-04 Yongqi Zhai , Luyang Tang , Wei Jiang , Jiayu Yang , Ronggang Wang

Modern video codecs and learning-based approaches struggle for semantic reconstruction at extremely low bit-rates due to reliance on low-level spatiotemporal redundancies. Generative models, especially diffusion models, offer a new paradigm…

图像与视频处理 · 电气工程与系统科学 2026-02-06 Maojun Zhang , Haotian Wu , Richeng Jin , Deniz Gunduz , Krystian Mikolajczyk

Geometric motion planning offers effective and interpretable gait analysis and optimization tools for locomoting systems. However, due to the curse of dimensionality in coordinate optimization, a key component of geometric motion planning,…

机器人学 · 计算机科学 2024-03-08 Yanhao Yang , Capprin Bass , Ross L. Hatton

This work addresses the issue of motion compensation and pattern tracking in event camera data. An event camera generates asynchronous streams of events triggered independently by each of the pixels upon changes in the observed intensity.…

计算机视觉与模式识别 · 计算机科学 2023-03-07 Cedric Le Gentil , Ignacio Alzugaray , Teresa Vidal-Calleja

Recent developments in Transformers have achieved notable strides in enhancing video comprehension. Nonetheless, the O($N^2$) computation complexity associated with attention mechanisms presents substantial computational hurdles when…

计算机视觉与模式识别 · 计算机科学 2024-03-01 Yukun Feng , Yangming Shi , Fengze Liu , Tan Yan

Existing RGB-based imitation learning approaches typically employ traditional vision encoders such as ResNet or ViT, which lack explicit 3D reasoning capabilities. Recent geometry-grounded vision models, such as VGGT~\cite{wang2025vggt},…

机器人学 · 计算机科学 2025-09-22 An Dinh Vuong , Minh Nhat Vu , Ian Reid

3D Gaussian splats have emerged as a revolutionary, effective, learned representation for static 3D scenes. In this work, we explore using 2D Gaussian splats as a new primitive for representing videos. We propose GSVC, an approach to…

计算机视觉与模式识别 · 计算机科学 2025-01-23 Longan Wang , Yuang Shi , Wei Tsang Ooi

Point cloud video (PCV) is a versatile 3D representation of dynamic scenes with emerging applications. This paper introduces U-Motion, a learning-based compression scheme for both PCV geometry and attributes. We propose a U-Structured…

计算机视觉与模式识别 · 计算机科学 2025-03-21 Tingyu Fan , Yueyu Hu , Ran Gong , Yao Wang

Video diffusion models lack explicit geometric supervision during training, leading to inconsistency artifacts such as object deformation, spatial drift, and depth violations in generated videos. To address this limitation, we propose a…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Tengjiao Yin , Jinglei Shi , Heng Guo , Xi Wang

Several recent works have directly extended the image masked autoencoder (MAE) with random masking into video domain, achieving promising results. However, unlike images, both spatial and temporal information are important for video…

计算机视觉与模式识别 · 计算机科学 2023-08-25 David Fan , Jue Wang , Shuai Liao , Yi Zhu , Vimal Bhat , Hector Santos-Villalobos , Rohith MV , Xinyu Li

Storage and transmission challenges in dynamic 3D scene representation based on the i3DV platform, With increasing scene complexity, the explosive growth of 3D Gaussian data volume causes excessive storage space occupancy. To address this…

多媒体 · 计算机科学 2025-09-03 Liang Xie , Yanting Li , Luyang Tang , Wei Gao

In this work we propose a novel deep learning approach for ultra-low bitrate video compression for video conferencing applications. To address the shortcomings of current video compression paradigms when the available bandwidth is extremely…

计算机视觉与模式识别 · 计算机科学 2020-12-02 Goluck Konuko , Giuseppe Valenzise , Stéphane Lathuilière

With the remarkable progress in neural P-frame video coding, neural B-frame coding has recently emerged as a critical research direction. However, most existing neural B-frame codecs directly adopt P-frame coding tools without adequately…

图像与视频处理 · 电气工程与系统科学 2026-02-24 Xihua Sheng , Peilin Chen , Meng Wang , Li Zhang , Shiqi Wang , Dapeng Oliver Wu

Standard video encoders developed for conventional narrow field-of-view video are widely applied to 360{\deg} video as well, with reasonable results. However, while this approach commits arbitrarily to a projection of the spherical frames,…

计算机视觉与模式识别 · 计算机科学 2017-12-13 Yu-Chuan Su , Kristen Grauman

Nowadays, 360{\deg} video/image has been increasingly popular and drawn great attention. The spherical viewing range of 360{\deg} video/image accounts for huge data, which pose the challenges to 360{\deg} video/image processing in solving…

图像与视频处理 · 电气工程与系统科学 2019-10-29 Chen Li , Mai Xu , Shanyi Zhang , Patrick Le Callet