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In this paper, we propose a novel method for enhancing security in privacy-preserving federated learning using the Vision Transformer. In federated learning, learning is performed by collecting updated information without collecting raw…

密码学与安全 · 计算机科学 2024-10-01 Hiroto Sawada , Shoko Imaizumi , Hitoshi Kiya

Image-to-point cloud cross-modal Visual Place Recognition (VPR) is a challenging task where the query is an RGB image, and the database samples are LiDAR point clouds. Compared to single-modal VPR, this approach benefits from the widespread…

计算机视觉与模式识别 · 计算机科学 2025-03-03 Jianyi Peng , Fan Lu , Bin Li , Yuan Huang , Sanqing Qu , Guang Chen

Face detection has drawn much attention in recent decades since the seminal work by Viola and Jones. While many subsequences have improved the work with more powerful learning algorithms, the feature representation used for face detection…

计算机视觉与模式识别 · 计算机科学 2014-09-04 Bin Yang , Junjie Yan , Zhen Lei , Stan Z. Li

Privacy considerations and bias in datasets are quickly becoming high-priority issues that the computer vision community needs to face. So far, little attention has been given to practical solutions that do not involve collection of new…

计算机视觉与模式识别 · 计算机科学 2021-03-12 Peiyang He , Charlie Griffin , Krzysztof Kacprzyk , Artjom Joosen , Michael Collyer , Aleksandar Shtedritski , Yuki M. Asano

Recent advances in generative artificial intelligence have enabled the creation of highly realistic image forgeries, raising significant concerns about digital media authenticity. While existing detection methods demonstrate promising…

多媒体 · 计算机科学 2025-04-15 Junhao Xu , Jingjing Chen , Yang Jiao , Jiacheng Zhang , Zhiyu Tan , Hao Li , Yu-Gang Jiang

4D radar has received significant attention in autonomous driving thanks to its robustness under adverse weathers. Due to the sparse points and noisy measurements of the 4D radar, most of the research finish the 3D object detection task by…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Hanzhi Zhong , Zhiyu Xiang , Ruoyu Xu , Jingyun Fu , Peng Xu , Shaohong Wang , Zhihao Yang , Tianyu Pu , Eryun Liu

Modern computer vision services often require users to share raw feature descriptors with an untrusted server. This presents an inherent privacy risk, as raw descriptors may be used to recover the source images from which they were…

计算机视觉与模式识别 · 计算机科学 2023-08-23 Francesco Pittaluga , Bingbing Zhuang

GAN-generated image detection now becomes the first line of defense against the malicious uses of machine-synthesized image manipulations such as deepfakes. Although some existing detectors work well in detecting clean, known GAN samples,…

密码学与安全 · 计算机科学 2024-01-08 Chi Liu , Tianqing Zhu , Sheng Shen , Wanlei Zhou

3D object detection is an essential perception task in autonomous driving to understand the environments. The Bird's-Eye-View (BEV) representations have significantly improved the performance of 3D detectors with camera inputs on popular…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Zijian Zhu , Yichi Zhang , Hai Chen , Yinpeng Dong , Shu Zhao , Wenbo Ding , Jiachen Zhong , Shibao Zheng

As the Internet of Things (IoT) becomes deeply embedded in daily life, users are increasingly concerned about privacy leakage, especially from video data. Since frame-by-frame protection in large-scale video analytics (e.g., smart…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Yunhao Yao , Zhiqiang Wang , Ruiqi Li , Haoran Cheng , Puhan Luo , Xiangyang Li

Cameras can be used to perceive the environment around the vehicle, while affordable radar sensors are popular in autonomous driving systems as they can withstand adverse weather conditions unlike cameras. However, radar point clouds are…

计算机视觉与模式识别 · 计算机科学 2026-05-13 Kavin Chandrasekaran , Sorin Grigorescu , Gijs Dubbelman , Pavol Jancura

As visual assistant systems powered by visual language models (VLMs) become more prevalent, concerns over user privacy have grown, particularly for blind and low vision users who may unknowingly capture personal private information in their…

计算机视觉与模式识别 · 计算机科学 2025-08-14 Jeffri Murrugarra-LLerena , Haoran Niu , K. Suzanne Barber , Hal Daumé , Yang Trista Cao , Paola Cascante-Bonilla

Training state-of-the-art (SOTA) deep learning models requires a large amount of data. The visual information present in the training data can be misused, which creates a huge privacy concern. One of the prominent solutions for this issue…

计算机视觉与模式识别 · 计算机科学 2024-07-10 Umesh Kashyap , Sudev Kumar Padhi , Sk. Subidh Ali

Extreme amodal detection is the task of inferring the 2D location of objects that are not fully visible in the input image but are visible within an expanded field-of-view. This differs from amodal detection, where the object is partially…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Changlin Song , Yunzhong Hou , Michael Randall Barnes , Rahul Shome , Dylan Campbell

Object detection is a critical part of visual scene understanding. The representation of the object in the detection task has important implications on the efficiency and feasibility of annotation, robustness to occlusion, pose, lighting,…

计算机视觉与模式识别 · 计算机科学 2019-07-31 Li Ding , Lex Fridman

High-performance visual recognition systems generally require a large collection of labeled images to train. The expensive data curation can be an obstacle for improving recognition performance. Sharing more data allows training for better…

计算机视觉与模式识别 · 计算机科学 2019-06-24 Tae-hoon Kim , Dongmin Kang , Kari Pulli , Jonghyun Choi

The authors present a novel face tracking approach where optical flow information is incorporated into a modified version of the Viola Jones detection algorithm. In the original algorithm, detection is static, as information from previous…

计算机视觉与模式识别 · 计算机科学 2022-10-26 Andreas Ranftl , Fernando Alonso-Fernandez , Stefan Karlsson , Josef Bigun

Face segmentation is a first step for face biometric systems. In this paper we present a face segmentation algorithm for thermographic images. This algorithm is compared with the classic Viola and Jones algorithm used for visible images.…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Jiri Mekyska , Virginia Espinosa-Duró , Marcos Faundez-Zanuy

There has been a rise in the use of Machine Learning as a Service (MLaaS) Vision APIs as they offer multiple services including pre-built models and algorithms, which otherwise take a huge amount of resources if built from scratch. As these…

计算机视觉与模式识别 · 计算机科学 2021-05-21 Jaydeep Borkar , Pin-Yu Chen

Recent methods focus on learning a unified semantic-aligned visual representation to transfer knowledge between two domains, while ignoring the effect of semantic-free visual representation in alleviating the biased recognition problem. In…

计算机视觉与模式识别 · 计算机科学 2020-04-13 Shaobo Min , Hantao Yao , Hongtao Xie , Chaoqun Wang , Zheng-Jun Zha , Yongdong Zhang