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Optical flow is the motion of a pixel between at least two consecutive video frames and can be estimated through an end-to-end trainable convolutional neural network. To this end, large training datasets are required to improve the accuracy…

Computer Vision and Pattern Recognition · Computer Science 2021-04-19 Roman Seidel , André Apitzsch , Gangolf Hirtz

Aligning objects with corresponding textual descriptions is a fundamental challenge and a realistic requirement in vision-language understanding. While recent multimodal embedding models excel at global image-text alignment, they often…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Shenghao Fu , Yukun Su , Fengyun Rao , Jing Lyu , Xiaohua Xie , Wei-Shi Zheng

Audio-Visual Segmentation (AVS) aims to precisely outline audible objects in a visual scene at the pixel level. Existing AVS methods require fine-grained annotations of audio-mask pairs in supervised learning fashion. This limits their…

Computer Vision and Pattern Recognition · Computer Science 2023-09-14 Swapnil Bhosale , Haosen Yang , Diptesh Kanojia , Xiatian Zhu

Mode division multiplexing (MDM) is mooted as a technology to address future bandwidth issues, and has been successfully demonstrated in free space using spatial modes with orbital angular momentum (OAM). To further increase the data…

Millimeter wave (mmWave)-based orthogonal frequency-division multiplexing (OFDM) stands out as a suitable alternative for high-resolution sensing and high-speed data transmission. To meet communication and sensing requirements, many works…

Signal Processing · Electrical Eng. & Systems 2024-12-25 Mamady Delamou , Ahmed Naeem , Huseyin Arslan , El Mehdi Amhoud

Audio-visual navigation is an audio-targeted wayfinding task where a robot agent is entailed to travel a never-before-seen 3D environment towards the sounding source. In this article, we present ORAN, an omnidirectional audio-visual…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Jinyu Chen , Wenguan Wang , Si Liu , Hongsheng Li , Yi Yang

In this paper, we propose a novel end-to-end deep neural network model for omnidirectional depth estimation from a wide-baseline multi-view stereo setup. The images captured with ultra wide field-of-view (FOV) cameras on an omnidirectional…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Changhee Won , Jongbin Ryu , Jongwoo Lim

Multi-modal image fusion (MMIF) integrates valuable information from different modality images into a fused one. However, the fusion of multiple visible images with different focal regions and infrared images is a unprecedented challenge in…

Computer Vision and Pattern Recognition · Computer Science 2024-02-01 Xilai Li , Xiaosong Li , Tao Ye , Xiaoqi Cheng , Wuyang Liu , Haishu Tan

Recent advances in large language models, particularly following GPT-4o, have sparked increasing interest in developing omni-modal models capable of understanding more modalities. While some open-source alternatives have emerged, there is…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Zuyan Liu , Yuhao Dong , Jiahui Wang , Ziwei Liu , Winston Hu , Jiwen Lu , Yongming Rao

Omnidirectional scene understanding is vital for various downstream applications, such as embodied AI, autonomous driving, and immersive environments, yet remains challenging due to geometric distortion and complex spatial relations in…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Xinshen Zhang , Tongxi Fu , Xu Zheng

Amodal segmentation and amodal content completion require using object priors to estimate occluded masks and features of objects in complex scenes. Until now, no data has provided an additional dimension for object context: the possibility…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Alexander Moore , Amar Saini , Kylie Cancilla , Doug Poland , Carmen Carrano

Orbital angular momentum (OAM) has been regarded as a potential dimension for optical communication and related fields. Despite several studies, the transmission of OAM beams through time-varying scattering media remains a challenge. In…

Optics · Physics 2026-05-08 Heshen Li , Jin Wei , Tianshun Zhang , Wen Chen

Due to its extensive applications, aerial image object detection has long been a hot topic in computer vision. In recent years, advancements in Unmanned Aerial Vehicles (UAV) technology have further propelled this field to new heights,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Yang Zhou , Junjie Li , CongYang Ou , Dawei Yan , Haokui Zhang , Xizhe Xue

Video matting has broad applications, from adding interesting effects to casually captured movies to assisting video production professionals. Matting with associated effects such as shadows and reflections has also attracted increasing…

Computer Vision and Pattern Recognition · Computer Science 2023-09-15 Geng Lin , Chen Gao , Jia-Bin Huang , Changil Kim , Yipeng Wang , Matthias Zwicker , Ayush Saraf

Multi-object multi-part scene segmentation is a challenging task whose complexity scales exponentially with part granularity and number of scene objects. To address the task, we propose a plug-and-play approach termed OLAF. First, we…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Pranav Gupta , Rishubh Singh , Pradeep Shenoy , Ravikiran Sarvadevabhatla

In many intelligent systems, a network of agents collaboratively perceives the environment for better and more efficient situation awareness. As these agents often have limited resources, it could be greatly beneficial to identify the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Shuyue Lan , Zhilu Wang , Amit K. Roy-Chowdhury , Ermin Wei , Qi Zhu

In this work, we pursue a unified paradigm for multimodal pretraining to break the scaffolds of complex task/modality-specific customization. We propose OFA, a Task-Agnostic and Modality-Agnostic framework that supports Task…

Computer Vision and Pattern Recognition · Computer Science 2022-06-02 Peng Wang , An Yang , Rui Men , Junyang Lin , Shuai Bai , Zhikang Li , Jianxin Ma , Chang Zhou , Jingren Zhou , Hongxia Yang

Omnidirectional images (also referred to as static 360{\deg} panoramas) impose viewing conditions much different from those of regular 2D images. How do humans perceive image distortions in immersive virtual reality (VR) environments is an…

Image and Video Processing · Electrical Eng. & Systems 2021-01-06 Xiangjie Sui , Kede Ma , Yiru Yao , Yuming Fang

VMAF is a machine learning based video quality assessment method, originally designed for streaming applications, which combines multiple quality metrics and video features through SVM regression. It offers higher correlation with…

Image and Video Processing · Electrical Eng. & Systems 2021-09-17 Fan Zhang , Angeliki Katsenou , Christos Bampis , Lukas Krasula , Zhi Li , David Bull

Orthogonal time frequency space (OTFS) is a promising waveform in high mobility scenarios for it fully exploits the time-frequency diversity using a discrete Fourier transform (DFT) based two dimensional spreading. However, it trades off…

Signal Processing · Electrical Eng. & Systems 2023-11-22 Pu Yuan , Jin Liu , Dajie Jiang , Fei Qin