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We demonstrate our solution for the 2019 COCO panoptic segmentation task. Our method first performs instance segmentation and semantic segmentation separately, then combines the two to generate panoptic segmentation results. To enhance the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Mehmet Yildirim , Yogesh Langhe

Recent advances in semantic image segmentation have mostly been achieved by training deep convolutional neural networks (CNNs). We show how to improve semantic segmentation through the use of contextual information; specifically, we explore…

Computer Vision and Pattern Recognition · Computer Science 2016-06-07 Guosheng Lin , Chunhua Shen , Anton van dan Hengel , Ian Reid

The linear-chain Conditional Random Field (CRF) model is one of the most widely-used neural sequence labeling approaches. Exact probabilistic inference algorithms such as the forward-backward and Viterbi algorithms are typically applied in…

Computation and Language · Computer Science 2020-10-13 Xinyu Wang , Yong Jiang , Nguyen Bach , Tao Wang , Zhongqiang Huang , Fei Huang , Kewei Tu

Fine-grained action segmentation and recognition is an important yet challenging task. Given a long, untrimmed sequence of kinematic data, the task is to classify the action at each time frame and segment the time series into the correct…

Computer Vision and Pattern Recognition · Computer Science 2018-01-30 Effrosyni Mavroudi , Divya Bhaskara , Shahin Sefati , Haider Ali , René Vidal

We present Panoptic Neural Fields (PNF), an object-aware neural scene representation that decomposes a scene into a set of objects (things) and background (stuff). Each object is represented by an oriented 3D bounding box and a multi-layer…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Abhijit Kundu , Kyle Genova , Xiaoqi Yin , Alireza Fathi , Caroline Pantofaru , Leonidas Guibas , Andrea Tagliasacchi , Frank Dellaert , Thomas Funkhouser

Recently, there is growing attention on one-stage panoptic segmentation methods which aim to segment instances and stuff jointly within a fully convolutional pipeline efficiently. However, most of the existing works directly feed the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-14 Yifeng Chen , Wenqing Chu , Fangfang Wang , Ying Tai , Ran Yi , Zhenye Gan , Liang Yao , Chengjie Wang , Xi Li

Object detection is one of the most active areas in computer vision, which has made significant improvement in recent years. Current state-of-the-art object detection methods mostly adhere to the framework of regions with convolutional…

Computer Vision and Pattern Recognition · Computer Science 2016-04-15 Wenqing Chu , Deng Cai

Probabilistic inference in pairwise Markov Random Fields (MRFs), i.e. computing the partition function or computing a MAP estimate of the variables, is a foundational problem in probabilistic graphical models. Semidefinite programming…

Machine Learning · Computer Science 2021-05-04 Chirag Pabbaraju , Po-Wei Wang , J. Zico Kolter

We propose a novel method for semantic segmentation, the task of labeling each pixel in an image with a semantic class. Our method combines the advantages of the two main competing paradigms. Methods based on region classification offer…

Computer Vision and Pattern Recognition · Computer Science 2016-07-27 Holger Caesar , Jasper Uijlings , Vittorio Ferrari

Semi-Markov CRF has been proposed as an alternative to the traditional Linear Chain CRF for text segmentation tasks such as Named Entity Recognition (NER). Unlike CRF, which treats text segmentation as token-level prediction, Semi-CRF…

Computation and Language · Computer Science 2023-12-01 Urchade Zaratiana , Nadi Tomeh , Niama El Khbir , Pierre Holat , Thierry Charnois

Linear chain conditional random fields (CRFs) combined with contextual word embeddings have achieved state of the art performance on sequence labeling tasks. In many of these tasks, the identity of the neighboring words is often the most…

Computation and Language · Computer Science 2021-03-31 Harshil Shah , Tim Xiao , David Barber

Latent Diffusion Models (LDMs) produce high-quality, photo-realistic images, however, the latency incurred by multiple costly inference iterations can restrict their applicability. We introduce LatentCRF, a continuous Conditional Random…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Kanchana Ranasinghe , Sadeep Jayasumana , Andreas Veit , Ayan Chakrabarti , Daniel Glasner , Michael S Ryoo , Srikumar Ramalingam , Sanjiv Kumar

We present a filtering-based method for semantic mapping to simultaneously detect objects and localize their 6 degree-of-freedom pose. For our method, called Contextual Temporal Mapping (or CT-Map), we represent the semantic map as a belief…

Robotics · Computer Science 2018-10-30 Zhen Zeng , Yunwen Zhou , Odest Chadwicke Jenkins , Karthik Desingh

Estimating correspondence between two images and extracting the foreground object are two challenges in computer vision. With dual-lens smart phones, such as iPhone 7Plus and Huawei P9, coming into the market, two images of slightly…

Computer Vision and Pattern Recognition · Computer Science 2017-04-10 Xiaoyong Shen , Hongyun Gao , Xin Tao , Chao Zhou , Jiaya Jia

In image processing, image segmentation is the process of partitioning a digital image into multiple image segment. Among state-of-the-art methods, Markov Random Fields (MRF) can be used to model dependencies between pixels, and achieve a…

Emerging Technologies · Computer Science 2024-01-05 Timothe Presles , Cyrille Enderli , Gilles Burel , El Houssain Baghious

Deep convolutional neural networks (CNNs) are the backbone of state-of-art semantic image segmentation systems. Recent work has shown that complementing CNNs with fully-connected conditional random fields (CRFs) can significantly enhance…

Computer Vision and Pattern Recognition · Computer Science 2016-06-03 Liang-Chieh Chen , Jonathan T. Barron , George Papandreou , Kevin Murphy , Alan L. Yuille

We propose a novel end-to-end trainable framework for the graph decomposition problem. The minimum cost multicut problem is first converted to an unconstrained binary cubic formulation where cycle consistency constraints are incorporated…

Computer Vision and Pattern Recognition · Computer Science 2018-12-27 Jie Song , Bjoern Andres , Michael Black , Otmar Hilliges , Siyu Tang

Panoptic segmentation requires segments of both "things" (countable object instances) and "stuff" (uncountable and amorphous regions) within a single output. A common approach involves the fusion of instance segmentation (for "things") and…

Computer Vision and Pattern Recognition · Computer Science 2020-04-09 Justin Lazarow , Kwonjoon Lee , Kunyu Shi , Zhuowen Tu

Fully-connected Conditional Random Field (CRF) is often used as post-processing to refine voxel classification results by encouraging spatial coherence. In this paper, we propose a new end-to-end training method called Posterior-CRF. In…

Computer Vision and Pattern Recognition · Computer Science 2018-11-09 Shuai Chen , Marleen de Bruijne

Mean field approximation methodology has laid the foundation of modern Continuous Random Field (CRF) based solutions for the refinement of semantic segmentation. In this paper, we propose to relax the hard constraint of mean field…

Computer Vision and Pattern Recognition · Computer Science 2022-02-02 Xi Mo , Xiangyu Chen , Cuncong Zhong , Rui Li , Kaidong Li , Usman Sajid
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