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We propose a new approach for 3D instance segmentation based on sparse convolution and point affinity prediction, which indicates the likelihood of two points belonging to the same instance. The proposed network, built upon submanifold…

计算机视觉与模式识别 · 计算机科学 2019-02-13 Chen Liu , Yasutaka Furukawa

Most machine vision tasks (e.g., semantic segmentation) are based on images encoded and decoded by image compression algorithms (e.g., JPEG). However, these decoded images in the pixel domain introduce distortion, and they are optimized for…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Jinming Liu , Heming Sun , Jiro Katto

Performing data augmentation for learning deep neural networks is known to be important for training visual recognition systems. By artificially increasing the number of training examples, it helps reducing overfitting and improves…

计算机视觉与模式识别 · 计算机科学 2019-09-23 Nikita Dvornik , Julien Mairal , Cordelia Schmid

Recent advances in deep learning, especially deep convolutional neural networks (CNNs), have led to significant improvement over previous semantic segmentation systems. Here we show how to improve pixel-wise semantic segmentation by…

计算机视觉与模式识别 · 计算机科学 2018-06-04 Panqu Wang , Pengfei Chen , Ye Yuan , Ding Liu , Zehua Huang , Xiaodi Hou , Garrison Cottrell

The ability to accurately detect and classify objects at varying pixel sizes in cluttered scenes is crucial to many Navy applications. However, detection performance of existing state-of the-art approaches such as convolutional neural…

计算机视觉与模式识别 · 计算机科学 2017-08-28 JT Turner , Kalyan Moy Gupta , David Aha

We present a novel confidence refinement scheme that enhances pseudo labels in semi-supervised semantic segmentation. Unlike existing methods, which filter pixels with low-confidence predictions in isolation, our approach leverages the…

计算机视觉与模式识别 · 计算机科学 2024-07-04 Moshe Kimhi , Shai Kimhi , Evgenii Zheltonozhskii , Or Litany , Chaim Baskin

Learning invariant representations from images is one of the hardest challenges facing computer vision. Spatial pooling is widely used to create invariance to spatial shifting, but it is restricted to convolutional models. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2013-03-19 Sainbayar Sukhbaatar , Takaki Makino , Kazuyuki Aihara

We propose an approach to discover class-specific pixels for the weakly-supervised semantic segmentation task. We show that properly combining saliency and attention maps allows us to obtain reliable cues capable of significantly boosting…

计算机视觉与模式识别 · 计算机科学 2018-08-17 Arslan Chaudhry , Puneet K. Dokania , Philip H. S. Torr

Recently, methods based on Convolutional Neural Networks (CNN) achieved impressive success in semantic segmentation tasks. However, challenges such as the class imbalance and the uncertainty in the pixel-labeling process are not completely…

To bridge the gap between supervised semantic segmentation and real-world applications that acquires one model to recognize arbitrary new concepts, recent zero-shot segmentation attracts a lot of attention by exploring the relationships…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Quande Liu , Youpeng Wen , Jianhua Han , Chunjing Xu , Hang Xu , Xiaodan Liang

Salient segmentation aims to segment out attention-grabbing regions, a critical yet challenging task and the foundation of many high-level computer vision applications. It requires semantic-aware grouping of pixels into salient regions and…

计算机视觉与模式识别 · 计算机科学 2019-02-13 Michael Kampffmeyer , Nanqing Dong , Xiaodan Liang , Yujia Zhang , Eric P. Xing

In computer vision pixelwise dense prediction is the task of predicting a label for each pixel in the image. Convolutional neural networks achieve good performance on this task, while being computationally efficient. In this paper we carry…

计算与语言 · 计算机科学 2016-12-15 Tom Sercu , Vaibhava Goel

We address the problem of weakly-supervised semantic segmentation (WSSS) using bounding box annotations. Although object bounding boxes are good indicators to segment corresponding objects, they do not specify object boundaries, making it…

计算机视觉与模式识别 · 计算机科学 2021-04-05 Youngmin Oh , Beomjun Kim , Bumsub Ham

Semantic segmentation works on the computer vision algorithm for assigning each pixel of an image into a class. The task of semantic segmentation should be performed with both accuracy and efficiency. Most of the existing deep FCNs yield to…

计算机视觉与模式识别 · 计算机科学 2023-01-18 Farshad Safavi , Irfan Ali , Venkatesh Dasari , Guanqun Song , Ting Zhu , Maryam Rahnemoonfar

We present a weakly supervised model that jointly performs both semantic- and instance-segmentation -- a particularly relevant problem given the substantial cost of obtaining pixel-perfect annotation for these tasks. In contrast to many…

计算机视觉与模式识别 · 计算机科学 2019-01-15 Qizhu Li , Anurag Arnab , Philip H. S. Torr

Large imbalance often exists between the foreground points (i.e., objects) and the background points in outdoor LiDAR point clouds. It hinders cutting-edge detectors from focusing on informative areas to produce accurate 3D object detection…

计算机视觉与模式识别 · 计算机科学 2022-08-30 Peng Wu , Lipeng Gu , Xuefeng Yan , Haoran Xie , Fu Lee Wang , Gary Cheng , Mingqiang Wei

Semantic segmentation in videos has been a focal point of recent research. However, existing models encounter challenges when faced with unfamiliar categories. To address this, we introduce the Open Vocabulary Video Semantic Segmentation…

多媒体 · 计算机科学 2024-12-13 Xinhao Li , Yun Liu , Guolei Sun , Min Wu , Le Zhang , Ce Zhu

The application of Contrastive Language-Image Pre-training (CLIP) in Weakly Supervised Semantic Segmentation (WSSS) research powerful cross-modal semantic understanding capabilities. Existing methods attempt to optimize input text prompts…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Zhongxing Xu , Feilong Tang , Zhe Chen , Yingxue Su , Zhiyi Zhao , Ge Zhang , Jionglong Su , Zongyuan Ge

Multi-label recognition with partial labels (MLR-PL), in which only some labels are known while others are unknown for each image, is a practical task in computer vision, since collecting large-scale and complete multi-label datasets is…

计算机视觉与模式识别 · 计算机科学 2024-12-17 Haoxian Ruan , Zhihua Xu , Zhijing Yang , Yongyi Lu , Jinghui Qin , Tianshui Chen

Global context information is vital in visual understanding problems, especially in pixel-level semantic segmentation. The mainstream methods adopt the self-attention mechanism to model global context information. However, pixels belonging…

计算机视觉与模式识别 · 计算机科学 2020-10-21 Yanwen Chong , Congchong Nie , Yulong Tao , Xiaoshu Chen , Shaoming Pan