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Accurate facial landmarks are essential prerequisites for many tasks related to human faces. In this paper, an accurate facial landmark detector is proposed based on cascaded transformers. We formulate facial landmark detection as a…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Hui Li , Zidong Guo , Seon-Min Rhee , Seungju Han , Jae-Joon Han

This paper proposes a novel paradigm for the unsupervised learning of object landmark detectors. Contrary to existing methods that build on auxiliary tasks such as image generation or equivariance, we propose a self-training approach where,…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Dimitrios Mallis , Enrique Sanchez , Matt Bell , Georgios Tzimiropoulos

Accurate face landmark localization is an essential part of face recognition, reconstruction and morphing. To accurately localize face landmarks, we present our heatmap regression approach. Each model consists of a MobileNetV2 backbone…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Samuel W. F. Earp , Aubin Samacoits , Sanjana Jain , Pavit Noinongyao , Siwa Boonpunmongkol

Identification of 3D cephalometric landmarks that serve as proxy to the shape of human skull is the fundamental step in cephalometric analysis. Since manual landmarking from 3D computed tomography (CT) images is a cumbersome task even for…

Computer Vision and Pattern Recognition · Computer Science 2021-01-14 Hye Sun Yun , Chang Min Hyun , Seong Hyeon Baek , Sang-Hwy Lee , Jin Keun Seo

Matching landmark patches from a real-time image captured by an on-vehicle camera with landmark patches in an image database plays an important role in various computer perception tasks for autonomous driving. Current methods focus on local…

Computer Vision and Pattern Recognition · Computer Science 2024-04-08 Rui She , Qiyu Kang , Sijie Wang , Wee Peng Tay , Yong Liang Guan , Diego Navarro Navarro , Andreas Hartmannsgruber

Landmark-based human action recognition in videos is a challenging task in computer vision. One key step is to design a generic approach that generates discriminative features for the spatial structure and temporal dynamics. To this end, we…

Computer Vision and Pattern Recognition · Computer Science 2019-12-13 Weixin Yang , Terry Lyons , Hao Ni , Cordelia Schmid , Lianwen Jin

We present a fast learning-based algorithm for deformable, pairwise 3D medical image registration. Current registration methods optimize an objective function independently for each pair of images, which can be time-consuming for large…

Computer Vision and Pattern Recognition · Computer Science 2019-03-14 Guha Balakrishnan , Amy Zhao , Mert R. Sabuncu , John Guttag , Adrian V. Dalca

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

Recent advancements in statistical learning and computational abilities have enabled autonomous vehicle technology to develop at a much faster rate. While many of the architectures previously introduced are capable of operating under highly…

Computer Vision and Pattern Recognition · Computer Science 2020-09-14 David Paz , Hengyuan Zhang , Qinru Li , Hao Xiang , Henrik Christensen

Efficient and fast reconstruction of anatomical structures plays a crucial role in clinical practice. Minimizing retrieval and processing times not only potentially enhances swift response and decision-making in critical scenarios but also…

Quantification of anatomical shape changes currently relies on scalar global indexes which are largely insensitive to regional or asymmetric modifications. Accurate assessment of pathology-driven anatomical remodeling is a crucial step for…

We study the problem of how to build a deep learning representation for 3D shape. Deep learning has shown to be very effective in variety of visual applications, such as image classification and object detection. However, it has not been…

Computer Vision and Pattern Recognition · Computer Science 2014-09-26 Zhuotun Zhu , Xinggang Wang , Song Bai , Cong Yao , Xiang Bai

Our goal in this paper is to investigate properties of 3D shape that can be determined from a single image. We define 3D shape attributes -- generic properties of the shape that capture curvature, contact and occupied space. Our first…

Computer Vision and Pattern Recognition · Computer Science 2017-12-05 David F. Fouhey , Abhinav Gupta , Andrew Zisserman

Fundamental to improving Dental and Orthodontic treatments is the ability to quantitatively assess and cross-compare their outcomes. Such assessments require calculating distances and angles from 3D coordinates of dental landmarks. The…

Numerical Analysis · Mathematics 2020-12-25 Brénainn Woodsend , Eirini Koufoudaki , Peter A. Mossey , Ping Lin

At present, deep neural network methods have played a dominant role in face alignment field. However, they generally use predefined network structures to predict landmarks, which tends to learn general features and leads to mediocre…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Jun Wan , He Liu , Yujia Wu , Zhihui Lai , Wenwen Min , Jun Liu

We aim at constructing a high performance model for defect detection that detects unknown anomalous patterns of an image without anomalous data. To this end, we propose a two-stage framework for building anomaly detectors using normal…

Computer Vision and Pattern Recognition · Computer Science 2021-04-12 Chun-Liang Li , Kihyuk Sohn , Jinsung Yoon , Tomas Pfister

Semi-supervised learning relaxes the need of large pixel-wise labeled datasets for image segmentation by leveraging unlabeled data. A prominent way to exploit unlabeled data is to regularize model predictions. Since the predictions of…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Sukesh Adiga , Jose Dolz , Herve Lombaert

Motions of virtual characters in movies or video games are typically generated by recording actors using motion capturing methods. Animations generated this way often need postprocessing, such as improving the periodicity of cyclic…

Computer Vision and Pattern Recognition · Computer Science 2015-02-27 Martin Bauer , Markus Eslitzbichler , Markus Grasmair

We address the problem of 3D shape registration and we propose a novel technique based on spectral graph theory and probabilistic matching. The task of 3D shape analysis involves tracking, recognition, registration, etc. Analyzing 3D data…

Computer Vision and Pattern Recognition · Computer Science 2021-06-22 Avinash Sharma , Radu Horaud , Diana Mateus

Fetal pose estimation in 3D ultrasound (US) involves identifying a set of associated fetal anatomical landmarks. Its primary objective is to provide comprehensive information about the fetus through landmark connections, thus benefiting…

Image and Video Processing · Electrical Eng. & Systems 2023-10-31 Chaoyu Chen , Xin Yang , Yuhao Huang , Wenlong Shi , Yan Cao , Mingyuan Luo , Xindi Hu , Lei Zhue , Lequan Yu , Kejuan Yue , Yuanji Zhang , Yi Xiong , Dong Ni , Weijun Huang