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Given a query photo issued by a user (q-user), the landmark retrieval is to return a set of photos with their landmarks similar to those of the query, while the existing studies on the landmark retrieval focus on exploiting geometries of…

Computer Vision and Pattern Recognition · Computer Science 2017-04-05 Yang Wang , Xuemin Lin , Lin Wu , Wenjie Zhang

Purpose: Deformable Image Registration (DIR) can benefit from additional guidance using corresponding landmarks in the images. However, the benefits thereof are largely understudied, especially due to the lack of automatic landmark…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Monika Grewal , Jan Wiersma , Henrike Westerveld , Peter A. N. Bosman , Tanja Alderliesten

We address the visual relocalization problem of predicting the location and camera orientation or pose (6DOF) of the given input scene. We propose a method based on how humans determine their location using the visible landmarks. We define…

Computer Vision and Pattern Recognition · Computer Science 2018-11-13 Soham Saha , Girish Varma , C. V. Jawahar

We present a novel convolutional neural network (CNN) design for facial landmark coordinate regression. We examine the intermediate features of a standard CNN trained for landmark detection and show that features extracted from later, more…

Computer Vision and Pattern Recognition · Computer Science 2016-03-23 Yue Wu , Tal Hassner , KangGeon Kim , Gerard Medioni , Prem Natarajan

Two approaches are proposed for cross-pose face recognition, one is based on the 3D reconstruction of facial components and the other is based on the deep Convolutional Neural Network (CNN). Unlike most 3D approaches that consider holistic…

Computer Vision and Pattern Recognition · Computer Science 2017-09-01 Gee-Sern , Hsu , Hung-Cheng Shie , Cheng-Hua Hsieh

The recent advances brought by deep learning allowed to improve the performance in image retrieval tasks. Through the many convolutional layers, available in a Convolutional Neural Network (CNN), it is possible to obtain a hierarchy of…

Computer Vision and Pattern Recognition · Computer Science 2018-08-16 Federico Magliani , Tomaso Fontanini , Andrea Prati

We present an algorithm for extracting key-point descriptors using deep convolutional neural networks (CNN). Unlike many existing deep CNNs, our model computes local features around a given point in an image. We also present a face…

Computer Vision and Pattern Recognition · Computer Science 2016-02-01 Amit Kumar , Rajeev Ranjan , Vishal Patel , Rama Chellappa

In this study, we show that landmark detection or face alignment task is not a single and independent problem. Instead, its robustness can be greatly improved with auxiliary information. Specifically, we jointly optimize landmark detection…

Computer Vision and Pattern Recognition · Computer Science 2016-11-15 Zhanpeng Zhang , Ping Luo , Chen Change Loy , Xiaoou Tang

Re-identification of individual animals in images can be ambiguous due to subtle variations in body markings between different individuals and no constraints on the poses of animals in the wild. Person re-identification is a similar task…

Computer Vision and Pattern Recognition · Computer Science 2020-01-10 Olga Moskvyak , Frederic Maire , Feras Dayoub , Mahsa Baktashmotlagh

In current biological and medical research, statistical shape modeling (SSM) provides an essential framework for the characterization of anatomy/morphology. Such analysis is often driven by the identification of a relatively small number of…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Riddhish Bhalodia , Shireen Elhabian , Ladislav Kavan , Ross Whitaker

Visual speech recognition is a technique to identify spoken content in silent speech videos, which has raised significant attention in recent years. Advancements in data-driven deep learning methods have significantly improved both the…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Lei Yang , Junshan Jin , Mingyuan Zhang , Yi He , Bofan Chen , Shilin Wang

Top-performing landmark estimation algorithms are based on exploiting the excellent ability of large convolutional neural networks (CNNs) to represent local appearance. However, it is well known that they can only learn weak spatial…

Computer Vision and Pattern Recognition · Computer Science 2022-10-14 Andrés Prados-Torreblanca , José M. Buenaposada , Luis Baumela

The rise of deepfake technology brings forth new questions about the authenticity of various forms of media found online today. Videos and images generated by artificial intelligence (AI) have become increasingly more difficult to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Benjamin Carter , Nathan Dilla , Micheal Callahan , Atuhaire Ambala

While deep learning has become a key ingredient in the top performing methods for many computer vision tasks, it has failed so far to bring similar improvements to instance-level image retrieval. In this article, we argue that reasons for…

Computer Vision and Pattern Recognition · Computer Science 2017-05-08 Albert Gordo , Jon Almazan , Jerome Revaud , Diane Larlus

In the large-scale image retrieval task, the two most important requirements are the discriminability of image representations and the efficiency in computation and storage of representations. Regarding the former requirement, Convolutional…

Computer Vision and Pattern Recognition · Computer Science 2019-03-07 Thanh-Toan Do , Tuan Hoang , Dang-Khoa Le Tan , Huu Le , Tam V. Nguyen , Ngai-Man Cheung

In this paper we propose a new approach for learning local descriptors for matching image patches. It has recently been demonstrated that descriptors based on convolutional neural networks (CNN) can significantly improve the matching…

Computer Vision and Pattern Recognition · Computer Science 2016-01-20 Vassileios Balntas , Edward Johns , Lilian Tang , Krystian Mikolajczyk

We address the problem of visual place recognition with perceptual changes. The fundamental problem of visual place recognition is generating robust image representations which are not only insensitive to environmental changes but also…

Computer Vision and Pattern Recognition · Computer Science 2019-04-16 Zhe Xin , Yinghao Cai , Tao Lu , Xiaoxia Xing , Shaojun Cai , Jixiang Zhang , Yiping Yang , Yanqing Wang

We propose a novel approach for instance-level image retrieval. It produces a global and compact fixed-length representation for each image by aggregating many region-wise descriptors. In contrast to previous works employing pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2016-07-29 Albert Gordo , Jon Almazan , Jerome Revaud , Diane Larlus

We propose a general purpose approach to detect landmarks with improved temporal consistency, and personalization. Most sparse landmark detection methods rely on laborious, manually labelled landmarks, where inconsistency in annotations…

Computer Vision and Pattern Recognition · Computer Science 2021-04-12 David Ferman , Gaurav Bharaj

Existing deep learning based facial landmark detection methods have achieved excellent performance. These methods, however, do not explicitly embed the structural dependencies among landmark points. They hence cannot preserve the geometric…

Computer Vision and Pattern Recognition · Computer Science 2022-06-29 Lisha Chen , Hui Su , Qiang Ji