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Face detection is one of the challenging tasks in computer vision. Human face detection plays an essential role in the first stage of face processing applications such as face recognition, face tracking, image database management, etc. In…

Computer Vision and Pattern Recognition · Computer Science 2017-02-16 Ali Sharifara , Mohd Shafry Mohd Rahim , Farhad Navabifar , Dylan Ebert , Amir Ghaderi , Michalis Papakostas

Recent works have shown that deep metric learning algorithms can benefit from weak supervision from another input modality. This additional modality can be incorporated directly into the popular triplet-based loss function as distances.…

Computer Vision and Pattern Recognition · Computer Science 2020-06-29 Istvan Fehervari , Ives Macedo

Despite the unprecedented improvement of face recognition, existing face recognition models still show considerably low performances in determining whether a pair of child and adult images belong to the same identity. Previous approaches…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Jungsoo Lee , Jooyeol Yun , Sunghyun Park , Yonggyu Kim , Jaegul Choo

Fine-tuning is widely applied in image classification tasks as a transfer learning approach. It re-uses the knowledge from a source task to learn and obtain a high performance in target tasks. Fine-tuning is able to alleviate the challenge…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Xuyang Shen , Jo Plested , Sabrina Caldwell , Yiran Zhong , Tom Gedeon

One of the main challenges for feature representation in deep learning-based classification is the design of appropriate loss functions that exhibit strong discriminative power. The classical softmax loss does not explicitly encourage…

Computer Vision and Pattern Recognition · Computer Science 2022-06-24 Xiong Zhou , Xianming Liu , Deming Zhai , Junjun Jiang , Xin Gao , Xiangyang Ji

Image resolution, or in general, image quality, plays an essential role in the performance of today's face recognition systems. To address this problem, we propose a novel combination of the popular triplet loss to improve robustness…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Martin Knoche , Mohamed Elkadeem , Stefan Hörmann , Gerhard Rigoll

Semantic segmentation of histopathology images under class imbalance is typically addressed through frequency-based loss reweighting, which implicitly assumes that rare classes are difficult. However, true difficulty also arises from…

Image and Video Processing · Electrical Eng. & Systems 2026-04-16 Lakmali Nadeesha Kumari , Sen-Ching Samson Cheung

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…

Computer Vision and Pattern Recognition · Computer Science 2025-02-07 Yang Chen , Yueqi Duan , Runzhong Zhang , Yap-Peng Tan

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…

Computer Vision and Pattern Recognition · Computer Science 2020-12-24 Yash Srivastava , Vaishnav Murali , Shiv Ram Dubey

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.…

Computer Vision and Pattern Recognition · Computer Science 2019-08-06 Brian Teixeira , Birgi Tamersoy , Vivek Singh , Ankur Kapoor

The state-of-the-art approach for semi-supervised anomalous sound detection is to first learn an embedding space by using auxiliary classification tasks based on meta information or self-supervised learning and then estimate the…

Audio and Speech Processing · Electrical Eng. & Systems 2024-08-23 Kevin Wilkinghoff

Deep learning is becoming increasingly ubiquitous in medical research and applications while involving sensitive information and even critical diagnosis decisions. Researchers observe a significant performance disparity among subgroups with…

Machine Learning · Computer Science 2023-07-06 Zikang Xu , Shang Zhao , Quan Quan , Qingsong Yao , S. Kevin Zhou

Person re-identification aims to match images of the same person across disjoint camera views, which is a challenging problem in video surveillance. The major challenge of this task lies in how to preserve the similarity of the same person…

Computer Vision and Pattern Recognition · Computer Science 2017-09-26 Jiayun Wang , Sanping Zhou , Jinjun Wang , Qiqi Hou

Published research highlights the presence of demographic bias in automated facial attribute classification algorithms, particularly impacting women and individuals with darker skin tones. Existing bias mitigation techniques typically…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Ayesha Manzoor , Ajita Rattani

Many recent loss functions in deep metric learning are expressed with logarithmic and exponential forms, and they involve margin and scale as essential hyper-parameters. Since each data class has an intrinsic characteristic, several…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-24 Myunghun Jung , Hoirin Kim

Despite recent advances in face recognition, robust performance remains challenging under large variations in age, pose, and occlusion. A common strategy to address these issues is to guide representation learning with auxiliary supervision…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Ana Dias , João Ribeiro Pinto , Hugo Proença , João C. Neves

Although face recognition (FR) has achieved great success in recent years, it is still challenging to accurately recognize faces in low-quality images due to the obscured facial details. Nevertheless, it is often feasible to make…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Niloufar Alipour Talemi , Hossein Kashiani , Nasser M. Nasrabadi

While fine-tuning is a de facto standard method for training deep neural networks, it still suffers from overfitting when using small target datasets. Previous methods improve fine-tuning performance by maintaining knowledge of the source…

Machine Learning · Computer Science 2024-03-18 Shin'ya Yamaguchi , Sekitoshi Kanai , Kazuki Adachi , Daiki Chijiwa

Gender classification aims at recognizing a person's gender. Despite the high accuracy achieved by state-of-the-art methods for this task, there is still room for improvement in generalized and unrestricted datasets. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2017-11-21 Mahmoud Afifi , Abdelrahman Abdelhamed

Face recognition has been an active and vital topic among computer vision community for a long time. Previous researches mainly focus on loss functions used for facial feature extraction network, among which the improvements of…

Computer Vision and Pattern Recognition · Computer Science 2021-01-26 Xiang An , Xuhan Zhu , Yang Xiao , Lan Wu , Ming Zhang , Yuan Gao , Bin Qin , Debing Zhang , Ying Fu
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