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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

Semantic segmentation requires a holistic understanding of the physical world, as it assigns semantic labels to spatially continuous and structurally coherent objects rather than to isolated pixels. However, existing data-free knowledge…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Hongxuan Sun , Tao Wu

Dataset distillation (DD) aims to minimize the time and memory consumption needed for training deep neural networks on large datasets, by creating a smaller synthetic dataset that has similar performance to that of the full real dataset.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Xinhao Zhong , Bin Chen , Hao Fang , Xulin Gu , Shu-Tao Xia , En-Hui Yang

Instance-level quantification of kidney functional units is essential for morphometric analysis, yet most publicly available pathology datasets provide only semantic segmentation annotations, where adjacent structures of the same class are…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Leiyue Zhao , Tianyu Shi , Daniel Reisenbuchler , Xinzi He , Junchao Zhu , Tianyuan Yao , Yuechen Yang , Yanfan Zhu , Junlin Guo , Gelei Xu , Haichun Yang , Yuankai Huo , Mert R. Sabuncu , Yihe Yang , Ruining Deng

Image segmentation methods are usually trained with pixel-level annotations, which require significant human effort to collect. The most common solution to address this constraint is to implement weakly-supervised pipelines trained with…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Miriam Bellver , Amaia Salvador , Jordi Torres , Xavier Giro-i-Nieto

Efficiently training accurate deep models for weakly supervised semantic segmentation (WSSS) with image-level labels is challenging and important. Recently, end-to-end WSSS methods have become the focus of research due to their high…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Rongtao Xu , Changwei Wang , Jiaxi Sun , Shibiao Xu , Weiliang Meng , Xiaopeng Zhang

Score distillation sampling (SDS) demonstrates a powerful capability for text-conditioned 2D image and 3D object generation by distilling the knowledge from learned score functions. However, SDS often suffers from blurriness caused by noisy…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 SeonHwa Kim , Jiwon Kim , Soobin Park , Donghoon Ahn , Jiwon Kang , Seungryong Kim , Kyong Hwan Jin , Eunju Cha

Recent progresses on self-supervised 3D human action representation learning are largely attributed to contrastive learning. However, in conventional contrastive frameworks, the rich complementarity between different skeleton modalities…

Computer Vision and Pattern Recognition · Computer Science 2023-10-25 Yunyao Mao , Jiajun Deng , Wengang Zhou , Zhenbo Lu , Wanli Ouyang , Houqiang Li

State-of-the-art instance-aware semantic segmentation algorithms use axis-aligned bounding boxes as an intermediate processing step to infer the final instance mask output. This often leads to coarse and inaccurate mask proposals due to the…

Computer Vision and Pattern Recognition · Computer Science 2020-03-16 Patrick Follmann , Rebecca König

The current state-of-the-art methods in 3D instance segmentation typically involve a clustering step, despite the tendency towards heuristics, greedy algorithms, and a lack of robustness to the changes in data statistics. In contrast, we…

Computer Vision and Pattern Recognition · Computer Science 2022-07-14 Tong He , Wei Yin , Chunhua Shen , Anton van den Hengel

Segmenting or detecting objects in sparse Lidar point clouds are two important tasks in autonomous driving to allow a vehicle to act safely in its 3D environment. The best performing methods in 3D semantic segmentation or object detection…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Corentin Sautier , Gilles Puy , Spyros Gidaris , Alexandre Boulch , Andrei Bursuc , Renaud Marlet

Weakly supervised nuclei segmentation is a critical problem for pathological image analysis and greatly benefits the community due to the significant reduction of labeling cost. Adopting point annotations, previous methods mostly rely on…

Image and Video Processing · Electrical Eng. & Systems 2022-02-14 Weizhen Liu , Qian He , Xuming He

In this work, we present a new operator, called Instance Mask Projection (IMP), which projects a predicted Instance Segmentation as a new feature for semantic segmentation. It also supports back propagation so is trainable end-to-end. Our…

Computer Vision and Pattern Recognition · Computer Science 2019-06-18 Cheng-Yang Fu , Tamara L. Berg , Alexander C. Berg

Existing 3D instance segmentation methods frequently encounter issues with over-segmentation, leading to redundant and inaccurate 3D proposals that complicate downstream tasks. This challenge arises from their unsupervised merging approach,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Phuc Nguyen , Minh Luu , Anh Tran , Cuong Pham , Khoi Nguyen

This paper investigates indoor point cloud semantic segmentation under scene-level annotation, which is less explored compared to methods relying on sparse point-level labels. In the absence of precise point-level labels, current methods…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Lunhao Duan , Shanshan Zhao , Xingxing Weng , Jing Zhang , Gui-Song Xia

Multimodal remote sensing technology significantly enhances the understanding of surface semantics by integrating heterogeneous data such as optical images, Synthetic Aperture Radar (SAR), and Digital Surface Models (DSM). However, in…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Tong Wang , Xiaodong Zhang , Guanzhou Chen , Jiaqi Wang , Chenxi Liu , Xiaoliang Tan , Wenchao Guo , Xuyang Li , Xuanrui Wang , Zifan Wang

The goal of salient region detection is to identify the regions of an image that attract the most attention. Many methods have achieved state-of-the-art performance levels on this task. Recently, salient instance segmentation has become an…

Computer Vision and Pattern Recognition · Computer Science 2019-10-01 Jialun Pei , He Tang , Chao Liu , Chuanbo Chen

Instance segmentation demands costly per-pixel annotations and computationally expensive models. We introduce CAST, a semi-supervised knowledge distillation (SSKD) framework that compresses pre-trained vision foundation models (VFM) into…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Pardis Taghavi , Tian Liu , Renjie Li , Reza Langari , Zhengzhong Tu

Segmentation is central to clinical diagnosis and monitoring, yet the reliability of modern foundation models in medical imaging still depends on the availability of precise prompts. The Segment Anything Model (SAM) offers powerful…

Deep learning has shown remarkable progress in medical image semantic segmentation, yet its success heavily depends on large-scale expert annotations and consistent data distributions. In practice, annotations are scarce, and images are…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Ba-Thinh Lam , Thanh-Huy Nguyen , Hoang-Thien Nguyen , Quang-Khai Bui-Tran , Nguyen Lan Vi Vu , Phat K. Huynh , Ulas Bagci , Min Xu