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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…

计算机视觉与模式识别 · 计算机科学 2022-08-24 Hui Li , Zidong Guo , Seon-Min Rhee , Seungju Han , Jae-Joon Han

In this paper, we propose a new model to learn Adaptive Kernel-based Representations (AKBR) for graph classification. Unlike state-of-the-art R-convolution graph kernels that are defined by merely counting any pair of isomorphic…

机器学习 · 计算机科学 2024-08-14 Feifei Qian , Lixin Cui , Ming Li , Yue Wang , Hangyuan Du , Lixiang Xu , Lu Bai , Philip S. Yu , Edwin R. Hancock

Some tasks, such as surface normals or single-view depth estimation, require per-pixel ground truth that is difficult to obtain on real images but easy to obtain on synthetic. However, models learned on synthetic images often do not…

计算机视觉与模式识别 · 计算机科学 2020-11-11 Zhizhong Li , Linjie Luo , Sergey Tulyakov , Qieyun Dai , Derek Hoiem

Image regression tasks for medical applications, such as bone mineral density (BMD) estimation and left-ventricular ejection fraction (LVEF) prediction, play an important role in computer-aided disease assessment. Most deep regression…

计算机视觉与模式识别 · 计算机科学 2021-12-23 Weihang Dai , Xiaomeng Li , Wan Hang Keith Chiu , Michael D. Kuo , Kwang-Ting Cheng

Face alignment is crucial for face recognition and has been widely adopted. However, current practice is too simple and under-explored. There lacks an understanding of how important face alignment is and how it should be performed, for…

计算机视觉与模式识别 · 计算机科学 2020-03-24 Huawei Wei , Peng Lu , Yichen Wei

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…

计算机视觉与模式识别 · 计算机科学 2022-10-14 Andrés Prados-Torreblanca , José M. Buenaposada , Luis Baumela

Heatmap regression based face alignment has achieved prominent performance on static images. However, the stability and accuracy are remarkably discounted when applying the existing methods on dynamic videos. We attribute the degradation to…

计算机视觉与模式识别 · 计算机科学 2020-11-16 Xu Sun , Zhenfeng Fan , Zihao Zhang , Yingjie Guo , Shihong Xia

Neural networks are increasingly used to estimate parameters in quantitative MRI, in particular in magnetic resonance fingerprinting. Their advantages over the gold standard non-linear least square fitting are their superior speed and their…

The deployment of multimodal models in high-stakes domains, such as self-driving vehicles and medical diagnostics, demands not only strong predictive performance but also reliable mechanisms for detecting failures. In this work, we address…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Moru Liu , Hao Dong , Olga Fink , Mario Trapp

This paper proposes an adaptive margin contrastive learning method for 3D semantic segmentation on point clouds. Most existing methods use equally penalized objectives, which ignore the per-point ambiguities and less discriminated features…

计算机视觉与模式识别 · 计算机科学 2025-07-10 Yang Chen , Yueqi Duan , Haowen Sun , Jiwen Lu , Yap-Peng Tan

Super-resolution (SR) and landmark localization of tiny faces are highly correlated tasks. On the one hand, landmark localization could obtain higher accuracy with faces of high-resolution (HR). On the other hand, face SR would benefit from…

计算机视觉与模式识别 · 计算机科学 2019-11-21 Yu Yin , Joseph P. Robinson , Yulun Zhang , Yun Fu

Landmark localization is a challenging problem in computer vision with a multitude of applications. Recent deep learning based methods have shown improved results by regressing likelihood maps instead of regressing the coordinates directly.…

计算机视觉与模式识别 · 计算机科学 2019-08-06 Brian Teixeira , Birgi Tamersoy , Vivek Singh , Ankur Kapoor

With the development of convolutional neural network, significant progress has been made in computer vision tasks. However, the commonly used loss function softmax loss and highly efficient network architecture for common visual tasks are…

计算机视觉与模式识别 · 计算机科学 2019-09-27 Xianyang Li , Feng Wang , Qinghao Hu , Cong Leng

The model of low-dimensional manifold and sparse representation are two well-known concise models that suggest each data can be described by a few characteristics. Manifold learning is usually investigated for dimension reduction by…

计算机视觉与模式识别 · 计算机科学 2016-03-22 Xi Peng , Lei Zhang , Zhang Yi , Kok Kiong Tan

Face alignment is a classic problem in the computer vision field. Previous works mostly focus on sparse alignment with a limited number of facial landmark points, i.e., facial landmark detection. In this paper, for the first time, we aim at…

计算机视觉与模式识别 · 计算机科学 2017-09-06 Yaojie Liu , Amin Jourabloo , William Ren , Xiaoming Liu

We present a robust method for estimating the facial pose and shape information from a densely annotated facial image. The method relies on Convolutional Point-set Representation (CPR), a carefully designed matrix representation to…

计算机视觉与模式识别 · 计算机科学 2018-04-04 Yuhang Wu , Le Anh Vu Ha , Xiang Xu , Ioannis A. Kakadiaris

Recognizing the expressions of partially occluded faces is a challenging computer vision problem. Previous expression recognition methods, either overlooked this issue or resolved it using extreme assumptions. Motivated by the fact that the…

计算机视觉与模式识别 · 计算机科学 2020-05-14 Hui Ding , Peng Zhou , Rama Chellappa

We propose an Ensemble of Robust Constrained Local Models for alignment of faces in the presence of significant occlusions and of any unknown pose and expression. To account for partial occlusions we introduce, Robust Constrained Local…

计算机视觉与模式识别 · 计算机科学 2017-07-20 Vishnu Naresh Boddeti , Myung-Cheol Roh , Jongju Shin , Takaharu Oguri , Takeo Kanade

Face Recognition is one of the prominent problems in the computer vision domain. Witnessing advances in deep learning, significant work has been observed in face recognition, which touched upon various parts of the recognition framework…

计算机视觉与模式识别 · 计算机科学 2020-12-24 Yash Srivastava , Vaishnav Murali , Shiv Ram Dubey

In this paper, we propose an adaptive margin contrastive learning method for 3D point cloud semantic segmentation, namely AMContrast3D. Most existing methods use equally penalized objectives, which ignore per-point ambiguities and less…

计算机视觉与模式识别 · 计算机科学 2025-02-07 Yang Chen , Yueqi Duan , Runzhong Zhang , Yap-Peng Tan