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Visual object detection has achieved unprecedented ad-vance with the rise of deep convolutional neural networks.However, detecting tiny objects (for example tiny per-sons less than 20 pixels) in large-scale images remainsnot well…

Computer Vision and Pattern Recognition · Computer Science 2019-12-24 Xuehui Yu , Yuqi Gong , Nan Jiang , Qixiang Ye , Zhenjun Han

Visual scene understanding is the core task in making any crucial decision in any computer vision system. Although popular computer vision datasets like Cityscapes, MS-COCO, PASCAL provide good benchmarks for several tasks (e.g. image…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Maryam Rahnemoonfar , Tashnim Chowdhury , Argho Sarkar , Debvrat Varshney , Masoud Yari , Robin Murphy

Both humans and computational methods struggle to discriminate the depths of objects hidden beneath foliage. However, such discrimination becomes feasible when we combine computational optical synthetic aperture sensing with the human…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Robert Kerschner , Rakesh John Amala Arokia Nathan , Rafal Mantiuk , Oliver Bimber

Person search aims to search for a target person among multiple images recorded by multiple surveillance cameras, which faces various challenges from both pedestrian detection and person re-identification. Besides the large intra-class…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Dingyuan Zheng , Jimin Xiao , Kaizhu Huang , Yao Zhao

Recognising persons in everyday photos presents major challenges (occluded faces, different clothing, locations, etc.) for machine vision. We propose a convnet based person recognition system on which we provide an in-depth analysis of…

Computer Vision and Pattern Recognition · Computer Science 2015-09-28 Seong Joon Oh , Rodrigo Benenson , Mario Fritz , Bernt Schiele

The proliferation of unmanned aerial vehicles (UAVs) has created urgent demand for precise UAV monitoring. Existing RGB-based systems rely on spatial cues that degrade at small scales, particularly with high inter-type similarity,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Yihang Luo , Jun Chen , Chao Xiao , Yingqian Wang , Zhaoxu Li , Qiang Ling , Xu He , Nuo Chen , Gaowei Guo , Hongge Li , Miao Li , Longguang Wang , Yulan Guo , Li Liu , Wei An , Zhijie Chen

Anthropogenic activities pose threats to wildlife and marine fauna, prompting the need for efficient animal counting methods. This research study utilizes deep learning techniques to automate counting tasks. Inspired by previous studies on…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Tanya Singh , Hugo Gangloff , Minh-Tan Pham

Intelligent forest tree breeding has advanced plant phenotyping, yet existing research largely focuses on large-leaf agricultural crops, with limited attention to fine-grained leaf analysis of sapling trees in open-field environments.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-05 Taige Luo , Junru Xie , Chenyang Fan , Bingrong Liu , Ruisheng Wang , Yang Shao , Sheng Xu , Lin Cao

A guiding robot aims to effectively bring people to and from specific places within environments that are possibly unknown to them. During this operation the robot should be able to detect and track the accompanied person, trying never to…

Computer Vision and Pattern Recognition · Computer Science 2023-07-31 Alberto Bacchin , Filippo Berno , Emanuele Menegatti , Alberto Pretto

Many previous methods on text-based person retrieval tasks are devoted to learning a latent common space mapping, with the purpose of extracting modality-invariant features from both visual and textual modality. Nevertheless, due to the…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Aichun Zhu , Zijie Wang , Yifeng Li , Xili Wan , Jing Jin , Tian Wang , Fangqiang Hu , Gang Hua

Accurate perception of UAVs in complex low-altitude environments is critical for airspace security and related intelligent systems. Developing reliable solutions requires large-scale, accurately annotated, and multimodal data. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Longkun Zou , Jiale Wang , Rongqin Liang , Hai Wu , Ke Chen , Yaowei Wang

For long time, person re-identification and image search are two separately studied tasks. However, for person re-identification, the effectiveness of local features and the "query-search" mode make it well posed for image search…

Computer Vision and Pattern Recognition · Computer Science 2015-02-10 Liang Zheng , Liyue Shen , Lu Tian , Shengjin Wang , Jiahao Bu , Qi Tian

Aerial-ground person re-identification (Re-ID) presents unique challenges in computer vision, stemming from the distinct differences in viewpoints, poses, and resolutions between high-altitude aerial and ground-based cameras. Existing…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Huy Nguyen , Kien Nguyen , Sridha Sridharan , Clinton Fookes

Autonomous harvesting and transportation is a long-term goal of the forest industry. One of the main challenges is the accurate localization of both vehicles and trees in a forest. Forests are unstructured environments where it is difficult…

Robotics · Computer Science 2020-06-16 Qingqing Li , Paavo Nevalainen , Jorge Peña Queralta , Jukka Heikkonen , Tomi Westerlund

Unmanned Aerial Vehicles (UAV) can pose a major risk for aviation safety, due to both negligent and malicious use. For this reason, the automated detection and tracking of UAV is a fundamental task in aerial security systems. Common…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Brian K. S. Isaac-Medina , Matt Poyser , Daniel Organisciak , Chris G. Willcocks , Toby P. Breckon , Hubert P. H. Shum

Facial appearance variations due to occlusion has been one of the main challenges for face recognition systems. To facilitate further research in this area, it is necessary and important to have occluded face datasets collected from…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Mustafa Ekrem Erakın , Uğur Demir , Hazım Kemal Ekenel

To construct an algorithm that can provide robust person detection, we present a dataset with over 8 million images that was produced in a weakly supervised manner. Through labor-intensive human annotation, the person detection research…

Computer Vision and Pattern Recognition · Computer Science 2020-05-04 Munetaka Minoguchi , Ken Okayama , Yutaka Satoh , Hirokatsu Kataoka

Audio-visual person recognition (AVPR) has received extensive attention. However, most datasets used for AVPR research so far are collected in constrained environments, and thus cannot reflect the true performance of AVPR systems in…

Computer Vision and Pattern Recognition · Computer Science 2023-07-31 Lantian Li , Xiaolou Li , Haoyu Jiang , Chen Chen , Ruihai Hou , Dong Wang

In recent years, the technological improvements of low-cost small-scale Unmanned Aerial Vehicles (UAVs) are promoting an ever-increasing use of them in different tasks. In particular, the use of small-scale UAVs is useful in all these…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Danilo Avola , Gian Luca Foresti , Niki Martinel , Daniele Pannone , Claudio Piciarelli

Face detection and recognition benchmarks have shifted toward more difficult environments. The challenge presented in this paper addresses the next step in the direction of automatic detection and identification of people from outdoor…