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Keypoint detection is a pivotal step in 3D reconstruction, whereby sets of (up to) K points are detected in each view of a scene. Crucially, the detected points need to be consistent between views, i.e., correspond to the same 3D point in…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Johan Edstedt , Georg Bökman , Mårten Wadenbäck , Michael Felsberg

We propose DLTPose, a novel method for 6DoF object pose estimation from RGBD images that combines the accuracy of sparse keypoint methods with the robustness of dense pixel-wise predictions. DLTPose predicts per-pixel radial distances to a…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Akash Jadhav , Michael Greenspan

We tackle the problem of finding accurate and robust keypoint correspondences between images. We propose a learning-based approach to guide local feature matches via a learned approximate image matching. Our approach can boost the results…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 François Darmon , Mathieu Aubry , Pascal Monasse

Deep neural networks are a promising solution for applications that solve problems based on learning data sets. DNN accelerators solve the processing bottleneck as a domain-specific processor. Like other hardware solutions, there must be…

Hardware Architecture · Computer Science 2022-11-08 Midia Reshadi , David Gregg

We introduce a simple modification of local image descriptors, such as SIFT, based on pooling gradient orientations across different domain sizes, in addition to spatial locations. The resulting descriptor, which we call DSP-SIFT,…

Computer Vision and Pattern Recognition · Computer Science 2015-05-06 Jingming Dong , Stefano Soatto

We propose a method to match anatomical locations between pairs of medical images in longitudinal comparisons. The matching is made possible by computing a descriptor of the query point in a source image based on a hierarchical sparse…

Image and Video Processing · Electrical Eng. & Systems 2023-09-26 Halid Ziya Yerebakan , Yoshihisa Shinagawa , Mahesh Ranganath , Simon Allen-Raffl , Gerardo Hermosillo Valadez

LiDAR-based localization approach is a fundamental module for large-scale navigation tasks, such as last-mile delivery and autonomous driving, and localization robustness highly relies on viewpoints and 3D feature extraction. Our previous…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Shiqi Zhao , Peng Yin , Ge Yi , Sebastian Scherer

Person re-identification (Re-ID) aims to match the same pedestrian in a large gallery with different cameras and views. Enhancing the robustness of the extracted feature representations is a main challenge in Re-ID. Existing methods usually…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Chao Yuan , Tianyi Zhang , Guanglin Niu

Identifying the causal pathways of unfairness is a critical objective for improving policy design and algorithmic decision-making. Prior work in causal fairness analysis often requires knowledge of the causal graph, hindering practical…

Machine Learning · Statistics 2024-12-23 Jacqueline Maasch , Kyra Gan , Violet Chen , Agni Orfanoudaki , Nil-Jana Akpinar , Fei Wang

In this paper, we propose a novel benchmark for evaluating local image descriptors. We demonstrate that the existing datasets and evaluation protocols do not specify unambiguously all aspects of evaluation, leading to ambiguities and…

Computer Vision and Pattern Recognition · Computer Science 2017-04-21 Vassileios Balntas , Karel Lenc , Andrea Vedaldi , Krystian Mikolajczyk

Establishing correspondences is a fundamental task in variety of image processing and computer vision applications. In particular, finding the correspondences between a non-linearly deformed image pair induced by different modality…

Computer Vision and Pattern Recognition · Computer Science 2019-01-07 Seungchul Ryu

In this work, we present a novel method to learn a local cross-domain descriptor for 2D image and 3D point cloud matching. Our proposed method is a dual auto-encoder neural network that maps 2D and 3D input into a shared latent space…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Quang-Hieu Pham , Mikaela Angelina Uy , Binh-Son Hua , Duc Thanh Nguyen , Gemma Roig , Sai-Kit Yeung

In many image processing applications, such as segmentation and classification, the selection of robust features descriptors is crucial to improve the discrimination capabilities in real world scenarios. In particular, it is well known that…

Computer Vision and Pattern Recognition · Computer Science 2011-12-01 Rodrigo Nava , Gabriel Cristóbal , Boris Escalante-Ramírez

Detection and description of keypoints from an image is a well-studied problem in Computer Vision. Some methods like SIFT, SURF or ORB are computationally really efficient. This paper proposes a solution for a particular case study on…

Computer Vision and Pattern Recognition · Computer Science 2020-06-05 Ibon Merino , Jon Azpiazu , Anthony Remazeilles , Basilio Sierra

We present a large scale benchmark for the evaluation of local feature detectors. Our key innovation is the introduction of a new evaluation protocol which extends and improves the standard detection repeatability measure. The new protocol…

Computer Vision and Pattern Recognition · Computer Science 2018-07-23 Karel Lenc , Andrea Vedaldi

Local Binary Descriptors are becoming more and more popular for image matching tasks, especially when going mobile. While they are extensively studied in this context, their ability to carry enough information in order to infer the original…

Computer Vision and Pattern Recognition · Computer Science 2012-11-07 Emmanuel d'Angelo , Laurent jacques , Alexandre Alahi , Pierre Vandergheynst

This paper introduces a simple but highly efficient ensemble for robust texture classification, which can effectively deal with translation, scale and changes of significant viewpoint problems. The proposed method first inherits the spirit…

Computer Vision and Pattern Recognition · Computer Science 2012-03-06 Shu Kong , Donghui Wang

Incompatibility of image descriptor and ranking is always neglected in image retrieval. In this paper, manifold learning and Gestalt psychology theory are involved to solve the incompatibility problem. A new holistic descriptor called…

Computer Vision and Pattern Recognition · Computer Science 2016-09-27 Shenglan Liu , Jun Wu , Lin Feng , Yang Liu , Hong Qiao , Wenbo Luo Muxin Sun , Wei Wang

In recent years, camera-based localization has been widely used for robotic applications, and most proposed algorithms rely on local features extracted from recorded images. For better performance, the features used for open-loop…

Computer Vision and Pattern Recognition · Computer Science 2019-08-08 Yafei Song , Di Zhu , Jia Li , Yonghong Tian , Mingyang Li

We present a simple but yet effective method for learning distinctive 3D local deep descriptors (DIPs) that can be used to register point clouds without requiring an initial alignment. Point cloud patches are extracted, canonicalised with…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Fabio Poiesi , Davide Boscaini