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The paper describes a method for measuring the similarity and symmetry of an image annotated with bounding boxes indicating image objects. The latter representation became popular recently due to the rapid development of fast and efficient…

计算机视觉与模式识别 · 计算机科学 2021-07-30 Marcin Iwanowski , Marcin Grzabka

In video based face recognition, face images are typically captured over multiple frames in uncontrolled conditions, where head pose, illumination, shadowing, motion blur and focus change over the sequence. Additionally, inaccuracies in…

计算机视觉与模式识别 · 计算机科学 2014-03-17 Yongkang Wong , Shaokang Chen , Sandra Mau , Conrad Sanderson , Brian C. Lovell

This paper presents a method for analysis of the vote space created from the local features extraction process in a multi-detection system. The method is opposed to the classic clustering approach and gives a high level of control over the…

计算机视觉与模式识别 · 计算机科学 2016-01-06 Grzegorz Kurzejamski , Jacek Zawistowski , Grzegorz Sarwas

Object pose estimation constitutes a critical area within the domain of 3D vision. While contemporary state-of-the-art methods that leverage real-world pose annotations have demonstrated commendable performance, the procurement of such real…

计算机视觉与模式识别 · 计算机科学 2024-04-01 Yang You , Wenhao He , Jin Liu , Hongkai Xiong , Weiming Wang , Cewu Lu

We present an improved version of PointRCNN for 3D object detection, in which a multi-branch backbone network is adopted to handle the non-uniform density of point clouds. An uncertainty-based sampling policy is proposed to deal with the…

计算机视觉与模式识别 · 计算机科学 2021-01-11 Jie Li , Yu Hu

The prevailing approach for training and evaluating paraphrase identification models is constructed as a binary classification problem: the model is given a pair of sentences, and is judged by how accurately it classifies pairs as either…

计算与语言 · 计算机科学 2020-06-25 Hannah Chen , Yangfeng Ji , David Evans

Two-dimensional bin packing problems are highly relevant combinatorial optimization problems. They find a large number of applications, for example, in the context of transportation or warehousing, and for the cutting of different materials…

人工智能 · 计算机科学 2012-09-06 Christian Blum , Verena Schmid , Lukas Baumgartner

The local arrangement of atoms is one of the most important predictors of mechanical and functional properties of materials. However, algorithms for identifying the geometrical arrangements of atoms in complex materials systems are lacking.…

材料科学 · 物理学 2019-04-15 Arash Dehghan Banadaki , Jason J. Maldonis , Paul M. Voyles , Srikanth Patala

Part-based representations have been shown to be very useful for image classification. Learning part-based models is often viewed as a two-stage problem. First, a collection of informative parts is discovered, using heuristics that promote…

计算机视觉与模式识别 · 计算机科学 2015-04-14 Sobhan Naderi Parizi , Andrea Vedaldi , Andrew Zisserman , Pedro Felzenszwalb

This paper studies the optimal solution of the classical problem of detecting the location of multiple image occurrences in a two-dimensional, noisy measurement. Assuming the image occurrences do not overlap, we formulate this task as a…

图像与视频处理 · 电气工程与系统科学 2024-07-31 Simon Anuk , Tamir Bendory , Amichai Painsky

We consider detecting objects in an image by iteratively selecting from a set of arbitrarily shaped candidate regions. Our generic approach, which we term visual chunking, reasons about the locations of multiple object instances in an image…

计算机视觉与模式识别 · 计算机科学 2015-03-18 Nicholas Rhinehart , Jiaji Zhou , Martial Hebert , J. Andrew Bagnell

Ensembling methods are well known for improving prediction accuracy. However, they are limited in the sense that they cannot discriminate among component models effectively. In this paper, we propose stacking with auxiliary features that…

计算与语言 · 计算机科学 2016-05-30 Nazneen Fatema Rajani , Raymond J. Mooney

Detecting and recognizing objects interacting with humans lie in the center of first-person (egocentric) daily activity recognition. However, due to noisy camera motion and frequent changes in viewpoint and scale, most of the previous…

计算机视觉与模式识别 · 计算机科学 2016-06-01 Changzhi Luo , Bingbing Ni , Jun Yuan , Jianfeng Wang , Shuicheng Yan , Meng Wang

In recent years, there has been an increasing demand on efficient algorithms for large scale change point detection problems. To this end, we propose seeded binary segmentation, an approach relying on a deterministic construction of…

统计方法学 · 统计学 2023-03-13 Solt Kovács , Housen Li , Peter Bühlmann , Axel Munk

We present a simple and flexible object detection framework optimized for autonomous driving. Building on the observation that point clouds in this application are extremely sparse, we propose a practical pillar-based approach to fix the…

计算机视觉与模式识别 · 计算机科学 2020-07-28 Yue Wang , Alireza Fathi , Abhijit Kundu , David Ross , Caroline Pantofaru , Thomas Funkhouser , Justin Solomon

3D object detection has achieved remarkable progress by taking point clouds as the only input. However, point clouds often suffer from incomplete geometric structures and the lack of semantic information, which makes detectors hard to…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Hao Yang , Chen Shi , Yihong Chen , Liwei Wang

This paper focuses on vision-based pose estimation for multiple rigid objects placed in clutter, especially in cases involving occlusions and objects resting on each other. Progress has been achieved recently in object recognition given…

机器人学 · 计算机科学 2019-04-04 Chaitanya Mitash , Abdeslam Boularias , Kostas Bekris

Higher-dimensional orthogonal packing problems have a wide range of practical applications, including packing, cutting, and scheduling. Previous efforts for exact algorithms have been unable to avoid structural problems that appear for…

数据结构与算法 · 计算机科学 2007-05-23 Sandor P. Fekete , Joerg Schepers

Bin Packing problems have been widely studied because of their broad applications in different domains. Known as a set of NP-hard problems, they have different vari- ations and many heuristics have been proposed for obtaining approximate…

机器学习 · 计算机科学 2017-02-16 Feng Mao , Edgar Blanco , Mingang Fu , Rohit Jain , Anurag Gupta , Sebastien Mancel , Rong Yuan , Stephen Guo , Sai Kumar , Yayang Tian

This paper proposes a novel concept to directly match feature descriptors extracted from 2D images with feature descriptors extracted from 3D point clouds. We use this concept to directly localize images in a 3D point cloud. We generate a…

计算机视觉与模式识别 · 计算机科学 2020-06-01 Uzair Nadeem , Mohammed Bennamoun , Roberto Togneri , Ferdous Sohel
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