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Visual 2.5D perception involves understanding the semantics and geometry of a scene through reasoning about object relationships with respect to the viewer in an environment. However, existing works in visual recognition primarily focus on…

Computer Vision and Pattern Recognition · Computer Science 2021-04-27 Yu-Chuan Su , Soravit Changpinyo , Xiangning Chen , Sathish Thoppay , Cho-Jui Hsieh , Lior Shapira , Radu Soricut , Hartwig Adam , Matthew Brown , Ming-Hsuan Yang , Boqing Gong

Deep learning has been demonstrated to achieve excellent results for image classification and object detection. However, the impact of deep learning on video analysis (e.g. action detection and recognition) has been limited due to…

Computer Vision and Pattern Recognition · Computer Science 2017-08-03 Rui Hou , Chen Chen , Mubarak Shah

In this paper, we propose a spatial-temporal relational reasoning networks (STRRN) approach to investigate the problem of omni-supervised face alignment in videos. Unlike existing fully supervised methods which rely on numerous annotations…

Computer Vision and Pattern Recognition · Computer Science 2019-12-17 Congcong Zhu , Hao Liu , Zhenhua Yu , Xuehong Sun

Most work on temporal action detection is formulated as an offline problem, in which the start and end times of actions are determined after the entire video is fully observed. However, important real-time applications including…

Computer Vision and Pattern Recognition · Computer Science 2019-03-26 Mingze Xu , Mingfei Gao , Yi-Ting Chen , Larry S. Davis , David J. Crandall

Novel view synthesis (NVS) and video prediction (VP) are typically considered disjoint tasks in computer vision. However, they can both be seen as ways to observe the spatial-temporal world: NVS aims to synthesize a scene from a new point…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Yunzhi Zhang , Jiajun Wu

Detecting actions in videos is an important yet challenging task. Previous works usually utilize (a) sliding window paradigms, or (b) per-frame action scoring and grouping to enumerate the possible temporal locations. Their performances are…

Computer Vision and Pattern Recognition · Computer Science 2019-09-18 Luxuan Li , Tao Kong , Fuchun Sun , Huaping Liu

Video super-resolution (VSR) is the task of restoring high-resolution frames from a sequence of low-resolution inputs. Different from single image super-resolution, VSR can utilize frames' temporal information to reconstruct results with…

Image and Video Processing · Electrical Eng. & Systems 2022-08-25 Wenyi Lian , Wenjing Lian

Video super-resolution plays an important role in surveillance video analysis and ultra-high-definition video display, which has drawn much attention in both the research and industrial communities. Although many deep learning-based VSR…

Image and Video Processing · Electrical Eng. & Systems 2020-08-21 Takashi Isobe , Fang Zhu , Xu Jia , Shengjin Wang

In this paper, we study the problem of temporal video grounding (TVG), which aims to predict the starting/ending time points of moments described by a text sentence within a long untrimmed video. Benefiting from fine-grained 3D visual…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Yimeng Zhang , Xin Chen , Jinghan Jia , Sijia Liu , Ke Ding

In this paper we propose a novel Temporal Attentive Relation Network (TARN) for the problems of few-shot and zero-shot action recognition. At the heart of our network is a meta-learning approach that learns to compare representations of…

Computer Vision and Pattern Recognition · Computer Science 2019-07-23 Mina Bishay , Georgios Zoumpourlis , Ioannis Patras

Visual relationship reasoning is a crucial yet challenging task for understanding rich interactions across visual concepts. For example, a relationship 'man, open, door' involves a complex relation 'open' between concrete entities 'man,…

Computer Vision and Pattern Recognition · Computer Science 2019-03-28 Yao-Hung Hubert Tsai , Santosh Divvala , Louis-Philippe Morency , Ruslan Salakhutdinov , Ali Farhadi

Video super-resolution (VSR) aims to restore a sequence of high-resolution (HR) frames from their low-resolution (LR) counterparts. Although some progress has been made, there are grand challenges to effectively utilize temporal dependency…

Image and Video Processing · Electrical Eng. & Systems 2022-04-21 Chengxu Liu , Huan Yang , Jianlong Fu , Xueming Qian

We tackle the problem of person re-identification in video setting in this paper, which has been viewed as a crucial task in many applications. Meanwhile, it is very challenging since the task requires learning effective representations…

Computer Vision and Pattern Recognition · Computer Science 2018-07-17 Xinxing Su , Yingtian Zou , Yu Cheng , Shuangjie Xu , Mo Yu , Pan Zhou

Temporal Action Detection (TAD) is an essential and challenging topic in video understanding, aiming to localize the temporal segments containing human action instances and predict the action categories. The previous works greatly rely upon…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Jiannan Wu , Peize Sun , Shoufa Chen , Jiewen Yang , Zihao Qi , Lan Ma , Ping Luo

Video retrieval is a challenging research topic bridging the vision and language areas and has attracted broad attention in recent years. Previous works have been devoted to representing videos by directly encoding from frame-level…

Computer Vision and Pattern Recognition · Computer Science 2020-06-17 Zerun Feng , Zhimin Zeng , Caili Guo , Zheng Li

We address the problem of spatio-temporal action detection in videos. Existing methods commonly either ignore temporal context in action recognition and localization, or lack the modelling of flexible shapes of action tubes. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2019-07-04 Wei Li , Zehuan Yuan , Dashan Guo , Lei Huang , Xiangzhong Fang , Changhu Wang

Sequential recommender systems identify user preferences from their past interactions to predict subsequent items optimally. Although traditional deep-learning-based models and modern transformer-based models in previous studies capture…

Information Retrieval · Computer Science 2024-02-20 Hansol Jung , Hyunwoo Seo , Chiehyeon Lim

Temporal relation classification is the task of determining the temporal relation between pairs of temporal entities in a text. Despite recent advancements in natural language processing, temporal relation classification remains a…

Computation and Language · Computer Science 2026-04-28 Hugo Sousa , Ricardo Campos , Alípio Jorge

The ability to accurately detect and classify objects at varying pixel sizes in cluttered scenes is crucial to many Navy applications. However, detection performance of existing state-of the-art approaches such as convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2017-08-28 JT Turner , Kalyan Moy Gupta , David Aha

Temporal video alignment aims to synchronize the key events like object interactions or action phase transitions in two videos. Such methods could benefit various video editing, processing, and understanding tasks. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Ishan Rajendrakumar Dave , Fabian Caba Heilbron , Mubarak Shah , Simon Jenni