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Depth estimation is a crucial step for 3D reconstruction with panorama images in recent years. Panorama images maintain the complete spatial information but introduce distortion with equirectangular projection. In this paper, we propose an…

计算机视觉与模式识别 · 计算机科学 2022-04-04 Chuanqing Zhuang , Zhengda Lu , Yiqun Wang , Jun Xiao , Ying Wang

This paper addresses fast semantic segmentation on video.Video segmentation often calls for real-time, or even fasterthan real-time, processing. One common recipe for conserving computation arising from feature extraction is to propagate…

计算机视觉与模式识别 · 计算机科学 2021-06-09 Shih-Po Lee , Si-Cun Chen , Wen-Hsiao Peng

As 3D movie viewing becomes mainstream and Virtual Reality (VR) market emerges, the demand for 3D contents is growing rapidly. Producing 3D videos, however, remains challenging. In this paper we propose to use deep neural networks for…

计算机视觉与模式识别 · 计算机科学 2016-04-14 Junyuan Xie , Ross Girshick , Ali Farhadi

Video instance segmentation, also known as multi-object tracking and segmentation, is an emerging computer vision research area introduced in 2019, aiming at detecting, segmenting, and tracking instances in videos simultaneously. By…

计算机视觉与模式识别 · 计算机科学 2023-10-20 Chenhao Xu , Chang-Tsun Li , Yongjian Hu , Chee Peng Lim , Douglas Creighton

In this paper, a new method for generating object and action proposals in images and videos is proposed. It builds on activations of different convolutional layers of a pretrained CNN, combining the localization accuracy of the early layers…

计算机视觉与模式识别 · 计算机科学 2016-06-16 Amir Ghodrati , Ali Diba , Marco Pedersoli , Tinne Tuytelaars , Luc Van Gool

Motion estimation and motion compensation are indispensable parts of inter prediction in video coding. Since the motion vector of objects is mostly in fractional pixel units, original reference pictures may not accurately provide a suitable…

图像与视频处理 · 电气工程与系统科学 2022-02-14 Haoyue Tian , Pan Gao , Ran Wei , Manoranjan Paul

There has been huge progress on video action recognition in recent years. However, many works focus on tweaking existing 2D backbones due to the reliance of ImageNet pretraining, which restrains the models from achieving higher efficiency…

计算机视觉与模式识别 · 计算机科学 2025-03-05 Zhe Wang , Xulei Yang

This paper presents a novel 3D object detection framework that processes LiDAR data directly on its native representation: range images. Benefiting from the compactness of range images, 2D convolutions can efficiently process dense LiDAR…

计算机视觉与模式识别 · 计算机科学 2021-01-25 Alex Bewley , Pei Sun , Thomas Mensink , Dragomir Anguelov , Cristian Sminchisescu

The use of latent variable models has shown to be a powerful tool for modeling probability distributions over sequences. In this paper, we introduce a new variational model that extends the recurrent network in two ways for the task of…

计算机视觉与模式识别 · 计算机科学 2020-12-14 Haziq Razali , Basura Fernando

In this paper, we propose multi-stage and deformable deep convolutional neural networks for object detection. This new deep learning object detection diagram has innovations in multiple aspects. In the proposed new deep architecture, a new…

Convolutional neural networks (CNNs) have shown great effectiveness in medical image segmentation. However, they may be limited in modeling large inter-subject variations in organ shapes and sizes and exploiting global long-range contextual…

图像与视频处理 · 电气工程与系统科学 2024-10-04 Jin Yang , Daniel S. Marcus , Aristeidis Sotiras

Temporal action localization is an important yet challenging problem. Given a long, untrimmed video consisting of multiple action instances and complex background contents, we need not only to recognize their action categories, but also to…

计算机视觉与模式识别 · 计算机科学 2017-06-14 Zheng Shou , Jonathan Chan , Alireza Zareian , Kazuyuki Miyazawa , Shih-Fu Chang

3D object detection from a single image without LiDAR is a challenging task due to the lack of accurate depth information. Conventional 2D convolutions are unsuitable for this task because they fail to capture local object and its scale…

计算机视觉与模式识别 · 计算机科学 2019-12-16 Mingyu Ding , Yuqi Huo , Hongwei Yi , Zhe Wang , Jianping Shi , Zhiwu Lu , Ping Luo

Video transformers have recently emerged as an effective alternative to convolutional networks for action classification. However, most prior video transformers adopt either global space-time attention or hand-defined strategies to compare…

计算机视觉与模式识别 · 计算机科学 2022-04-01 Jue Wang , Lorenzo Torresani

This paper presents a novel approach for segmenting moving objects in unconstrained environments using guided convolutional neural networks. This guiding process relies on foreground masks from independent algorithms (i.e. state-of-the-art…

计算机视觉与模式识别 · 计算机科学 2019-04-26 Diego Ortego , Kevin McGuinness , Juan C. SanMiguel , Eric Arazo , José M. Martínez , Noel E. O'Connor

We address the problem of temporal activity detection in continuous, untrimmed video streams. This is a difficult task that requires extracting meaningful spatio-temporal features to capture activities, accurately localizing the start and…

计算机视觉与模式识别 · 计算机科学 2019-06-07 Huijuan Xu , Abir Das , Kate Saenko

Brain tumor segmentation plays a pivotal role in medical image processing. In this work, we aim to segment brain MRI volumes. 3D convolution neural networks (CNN) such as 3D U-Net and V-Net employing 3D convolutions to capture the…

计算机视觉与模式识别 · 计算机科学 2019-09-24 Chen Chen , Xiaopeng Liu , Meng Ding , Junfeng Zheng , Jiangyun Li

Diffusion models have achieved impressive performance in video generation, but their iterative denoising process remains computationally expensive due to the large number of tokens processed at each timestep. Recently, progressive…

计算机视觉与模式识别 · 计算机科学 2026-05-21 Shikang Zheng , Jingkai Huang , Jiacheng Liu , Guantao Chen , Lixuan , Yuqi Lin , Peiliang Cai , Linfeng Zhang

The past decade has witnessed great success of deep learning technology in many disciplines, especially in computer vision and image processing. However, deep learning-based video coding remains in its infancy. This paper reviews the…

多媒体 · 计算机科学 2020-03-13 Dong Liu , Yue Li , Jianping Lin , Houqiang Li , Feng Wu

Research on video generation has recently made tremendous progress, enabling high-quality videos to be generated from text prompts or images. Adding control to the video generation process is an important goal moving forward and recent…

计算机视觉与模式识别 · 计算机科学 2024-05-28 Zhengfei Kuang , Shengqu Cai , Hao He , Yinghao Xu , Hongsheng Li , Leonidas Guibas , Gordon Wetzstein