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Accurate video annotation plays a vital role in modern retail applications, including customer behavior analysis, product interaction detection, and in-store activity recognition. However, conventional annotation methods heavily rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Varun Mannam , Zhenyu Shi

Segmenting and recognizing diverse object parts is crucial in computer vision and robotics. Despite significant progress in object segmentation, part-level segmentation remains underexplored due to complex boundaries and scarce annotated…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Xinjian Wu , Ruisong Zhang , Jie Qin , Shijie Ma , Cheng-Lin Liu

Large annotated datasets are vital for training segmentation models, but pixel-level labeling is time-consuming, error-prone, and often requires scarce expert annotators, especially in medical imaging. In contrast, coarse annotations are…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Le Zhang , Fuping Wu , Arun Thirunavukarasu , Kevin Bronik , Thomas Nichols , Bartlomiej W. Papiez

Annotating videos with object segmentation masks typically involves a two stage procedure of drawing polygons per object instance for all the frames and then linking them through time. While simple, this is a very tedious, time consuming…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Namdar Homayounfar , Justin Liang , Wei-Chiu Ma , Raquel Urtasun

In this work, we study the problem of training deep networks for semantic image segmentation using only a fraction of annotated images, which may significantly reduce human annotation efforts. Particularly, we propose a strategy that…

Computer Vision and Pattern Recognition · Computer Science 2019-09-02 Arnab Kumar Mondal , Aniket Agarwal , Jose Dolz , Christian Desrosiers

Single-point annotation in visual tasks, with the goal of minimizing labelling costs, is becoming increasingly prominent in research. Recently, visual foundation models, such as Segment Anything (SAM), have gained widespread usage due to…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Zhaoyang Wei , Pengfei Chen , Xuehui Yu , Guorong Li , Jianbin Jiao , Zhenjun Han

Recent years have seen remarkable progress in semantic segmentation. Yet, it remains a challenging task to apply segmentation techniques to video-based applications. Specifically, the high throughput of video streams, the sheer cost of…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Yule Li , Jianping Shi , Dahua Lin

Accurate cell segmentation in pathology images typically requires dense pixel-wise annotations, which are costly and time-consuming to obtain. This challenge is especially important for emerging biological imaging modalities and multiplexed…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Gunjan Shrivastava , Saad Nadeem

The recent Segment Anything Models (SAMs) have emerged as foundational visual models for general interactive segmentation. Despite demonstrating robust generalization abilities, they still suffer performance degradations in scenarios…

Computer Vision and Pattern Recognition · Computer Science 2025-02-17 Yuan Yao , Qiushi Yang , Miaomiao Cui , Liefeng Bo

Segment Anything Model (SAM) has gained significant recognition in the field of semantic segmentation due to its versatile capabilities and impressive performance. Despite its success, SAM faces two primary limitations: (1) it relies…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Yuchen Li , Li Zhang , Youwei Liang , Pengtao Xie

Segmentation of tumors in brain MRI images is a challenging task, where most recent methods demand large volumes of data with pixel-level annotations, which are generally costly to obtain. In contrast, image-level annotations, where only…

Image and Video Processing · Electrical Eng. & Systems 2019-11-07 Sergey Pavlov , Alexey Artemov , Maksim Sharaev , Alexander Bernstein , Evgeny Burnaev

A significant bottleneck in training deep networks for part segmentation is the cost of obtaining detailed annotations. We propose a framework to exploit coarse labels such as figure-ground masks and keypoint locations that are readily…

Computer Vision and Pattern Recognition · Computer Science 2022-07-29 Oindrila Saha , Zezhou Cheng , Subhransu Maji

Semi-supervised learning (SSL) has become a promising solution to alleviate the annotation burden of deep learning-based medical image segmentation models. While recent advances in foundation model-driven SSL have pushed the boundary to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Yichi Zhang , Le Xue , Bichun Xu , Judong Luo , Zhigang Wu , Yu Fu , Zixin Hu , Yuan Cheng , Yuan Qi

It is well known that semantic segmentation can be used as an effective intermediate representation for learning driving policies. However, the task of street scene semantic segmentation requires expensive annotations. Furthermore,…

Computer Vision and Pattern Recognition · Computer Science 2021-09-10 Aseem Behl , Kashyap Chitta , Aditya Prakash , Eshed Ohn-Bar , Andreas Geiger

Video Object Segmentation (VOS) is crucial for several applications, from video editing to video data generation. Training a VOS model requires an abundance of manually labeled training videos. The de-facto traditional way of annotating…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Thanos Delatolas , Vicky Kalogeiton , Dim P. Papadopoulos

Despite the remarkable performance of deep learning methods on various tasks, most cutting-edge models rely heavily on large-scale annotated training examples, which are often unavailable for clinical and health care tasks. The labeling…

Computer Vision and Pattern Recognition · Computer Science 2021-03-02 Jialin Peng , Ye Wang

Fundamental models, trained on large-scale datasets and adapted to new data using innovative learning methods, have revolutionized various fields. In materials science, microstructure image segmentation plays a pivotal role in understanding…

Materials Science · Physics 2024-07-09 Xudong Ma , Yuqi Zhang , Chenchong Wang , Wei Xu

Machine learning has been widely adopted for medical image analysis in recent years given its promising performance in image segmentation and classification tasks. The success of machine learning, in particular supervised learning, depends…

Computer Vision and Pattern Recognition · Computer Science 2022-06-03 Chengliang Dai , Shuo Wang , Yuanhan Mo , Elsa Angelini , Yike Guo , Wenjia Bai

Brain tumor segmentation is important for diagnosis of the tumor, and current deep-learning methods rely on a large set of annotated images for training, with high annotation costs. Unsupervised segmentation is promising to avoid human…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Xiaochuan Ma , Jia Fu , Wenjun Liao , Shichuan Zhang , Guotai Wang

Semantic labelling and instance segmentation are two tasks that require particularly costly annotations. Starting from weak supervision in the form of bounding box detection annotations, we propose a new approach that does not require…

Computer Vision and Pattern Recognition · Computer Science 2016-11-24 Anna Khoreva , Rodrigo Benenson , Jan Hosang , Matthias Hein , Bernt Schiele