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We propose a method for effectively utilizing weakly annotated image data in an object detection tasks of breast ultrasound images. Given the problem setting where a small, strongly annotated dataset and a large, weakly annotated dataset…

计算机视觉与模式识别 · 计算机科学 2020-08-20 JooYeol Yun , JungWoo Oh , IlDong Yun

Despite the remarkable accuracy of deep neural networks in object detection, they are costly to train and scale due to supervision requirements. Particularly, learning more object categories typically requires proportionally more bounding…

计算机视觉与模式识别 · 计算机科学 2021-03-16 Alireza Zareian , Kevin Dela Rosa , Derek Hao Hu , Shih-Fu Chang

We propose a self-supervised algorithm to learn representations from egocentric video data. Recently, significant efforts have been made to capture humans interacting with their own environments as they go about their daily activities. In…

计算机视觉与模式识别 · 计算机科学 2022-09-28 Himangi Mittal , Pedro Morgado , Unnat Jain , Abhinav Gupta

In many applications, training machine learning models involves using large amounts of human-annotated data. Obtaining precise labels for the data is expensive. Instead, training with weak supervision provides a low-cost alternative. We…

机器学习 · 计算机科学 2022-02-09 Chidubem Arachie , Bert Huang

Recently, video recognition is emerging with the help of multi-modal learning, which focuses on integrating distinct modalities to improve the performance or robustness of the model. Although various multi-modal learning methods have been…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Haochen Han , Qinghua Zheng , Minnan Luo , Kaiyao Miao , Feng Tian , Yan Chen

This paper focuses on a novel and challenging vision task, dense video captioning, which aims to automatically describe a video clip with multiple informative and diverse caption sentences. The proposed method is trained without explicit…

计算机视觉与模式识别 · 计算机科学 2017-04-06 Zhiqiang Shen , Jianguo Li , Zhou Su , Minjun Li , Yurong Chen , Yu-Gang Jiang , Xiangyang Xue

Pixel-level recognition of objects manipulated by the user from egocentric images enables key applications spanning assistive technologies, industrial safety, and activity monitoring. However, progress in this area is currently hindered by…

计算机视觉与模式识别 · 计算机科学 2025-12-03 Nicola Messina , Rosario Leonardi , Luca Ciampi , Fabio Carrara , Giovanni Maria Farinella , Fabrizio Falchi , Antonino Furnari

A fundamental challenge in machine learning today is to build a model that can learn from few examples. Here, we describe a reservoir based spiking neural model for learning to recognize actions with a limited number of labeled videos.…

神经与进化计算 · 计算机科学 2017-10-23 Priyadarshini Panda , Narayan Srinivasa

Weakly-supervised action segmentation is a task of learning to partition a long video into several action segments, where training videos are only accompanied by transcripts (ordered list of actions). Most of existing methods need to infer…

计算机视觉与模式识别 · 计算机科学 2024-03-29 Angchi Xu , Wei-Shi Zheng

The goal of this work is spatio-temporal action localization in videos, using only the supervision from video-level class labels. The state-of-the-art casts this weakly-supervised action localization regime as a Multiple Instance Learning…

计算机视觉与模式识别 · 计算机科学 2018-11-26 Pascal Mettes , Cees G. M. Snoek

We propose a novel self-supervised approach for learning audio and visual representations from unlabeled videos, based on their correspondence. The approach uses an attention mechanism to learn the relative importance of convolutional…

计算机视觉与模式识别 · 计算机科学 2024-12-11 Sudha Krishnamurthy

Weakly supervised instance segmentation reduces the cost of annotations required to train models. However, existing approaches which rely only on image-level class labels predominantly suffer from errors due to (a) partial segmentation of…

计算机视觉与模式识别 · 计算机科学 2021-03-25 Qing Liu , Vignesh Ramanathan , Dhruv Mahajan , Alan Yuille , Zhenheng Yang

Embodied intelligence relies on accurately segmenting objects actively involved in interactions. Action-based video object segmentation addresses this by linking segmentation with action semantics, but it depends on large-scale annotations…

计算机视觉与模式识别 · 计算机科学 2026-03-05 Wenxin Li , Kunyu Peng , Di Wen , Ruiping Liu , Mengfei Duan , Kai Luo , Kailun Yang

Self-supervised learning allows for better utilization of unlabelled data. The feature representation obtained by self-supervision can be used in downstream tasks such as classification, object detection, segmentation, and anomaly…

计算机视觉与模式识别 · 计算机科学 2020-06-18 Rabia Ali , Muhammad Umar Karim Khan , Chong Min Kyung

Learning visual knowledge from massive weakly-labeled web videos has attracted growing research interests thanks to the large corpus of easily accessible video data on the Internet. However, for video action recognition, the action of…

计算机视觉与模式识别 · 计算机科学 2021-01-12 Kunpeng Li , Zizhao Zhang , Guanhang Wu , Xuehan Xiong , Chen-Yu Lee , Zhichao Lu , Yun Fu , Tomas Pfister

Highlight detection has the potential to significantly ease video browsing, but existing methods often suffer from expensive supervision requirements, where human viewers must manually identify highlights in training videos. We propose a…

计算机视觉与模式识别 · 计算机科学 2019-03-05 Bo Xiong , Yannis Kalantidis , Deepti Ghadiyaram , Kristen Grauman

With a focus on abnormal events contained within untrimmed videos, there is increasing interest among researchers in video anomaly detection. Among different video anomaly detection scenarios, weakly-supervised video anomaly detection poses…

计算机视觉与模式识别 · 计算机科学 2023-09-29 Yidan Fan , Yongxin Yu , Wenhuan Lu , Yahong Han

Deep neural networks (DNNs) have demonstrated exceptional performance across various image segmentation tasks. However, the process of preparing datasets for training segmentation DNNs is both labor-intensive and costly, as it typically…

计算机视觉与模式识别 · 计算机科学 2025-01-24 Yixin Zhang , Shen Zhao , Hanxue Gu , Maciej A. Mazurowski

Given an image, we would like to learn to detect objects belonging to particular object categories. Common object detection methods train on large annotated datasets which are annotated in terms of bounding boxes that contain the object of…

计算机视觉与模式识别 · 计算机科学 2016-11-30 Soumya Roy , Vinay P. Namboodiri , Arijit Biswas

Online Multi-Object Tracking (MOT) from videos is a challenging computer vision task which has been extensively studied for decades. Most of the existing MOT algorithms are based on the Tracking-by-Detection (TBD) paradigm combined with…

计算机视觉与模式识别 · 计算机科学 2019-04-10 Zhen He , Jian Li , Daxue Liu , Hangen He , David Barber