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Face recognition in images is an active area of interest among the computer vision researchers. However, recognizing human face in an unconstrained environment, is a relatively less-explored area of research. Multiple face recognition in…

Computer Vision and Pattern Recognition · Computer Science 2019-03-29 Shiv Ram Dubey , Snehasis Mukherjee

With the rapid development of facial manipulation techniques, face forgery detection has received considerable attention in digital media forensics due to security concerns. Most existing methods formulate face forgery detection as a…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Shen Chen , Taiping Yao , Yang Chen , Shouhong Ding , Jilin Li , Rongrong Ji

Motion blur, out of focus, insufficient spatial resolution, lossy compression and many other factors can all cause an image to have poor quality. However, image quality is a largely ignored issue in traditional pattern recognition…

Computer Vision and Pattern Recognition · Computer Science 2018-01-22 Fei Yang , Qian Zhang , Miaohui Wang , Guoping Qiu

In real-world applications of image recognition tasks, such as human pose estimation, cameras often capture objects, like human bodies, at low resolutions. This scenario poses a challenge in extracting and leveraging multi-scale features,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Xiangyong Lu , Masanori Suganuma , Takayuki Okatani

Face retrieval has received much attention over the past few decades, and many efforts have been made in retrieving face images against pose, illumination, and expression variations. However, the conventional works fail to meet the…

Computer Vision and Pattern Recognition · Computer Science 2017-11-23 BingZhang Hu , Feng Zheng , Ling Shao

Image retargeting is the task of making images capable of being displayed on screens with different sizes. This work should be done so that high-level visual information and low-level features such as texture remain as intact as possible to…

Computer Vision and Pattern Recognition · Computer Science 2019-10-18 Mahdi Ahmadi , Nader Karimi , Shadrokh Samavi

The primary aim of single-image super-resolution is to construct high-resolution (HR) images from corresponding low-resolution (LR) inputs. In previous approaches, which have generally been supervised, the training objective typically…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 Sachit Menon , Alexandru Damian , Shijia Hu , Nikhil Ravi , Cynthia Rudin

Face recognition under extreme head poses is a challenging task. Ideally, a face recognition system should perform well across different head poses, which is known as pose-invariant face recognition. To achieve pose invariance, current…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Patrik Mesec , Alan Jović

The increasing demand for hygienic and portable biometric systems has underscored the critical need for advancements in contactless fingerprint recognition. Despite its potential, this technology faces notable challenges, including…

Computer Vision and Pattern Recognition · Computer Science 2025-09-05 Shubham Pandey , Bhavin Jawade , Srirangaraj Setlur

Despite rapid advances in face recognition, there remains a clear gap between the performance of still image-based face recognition and video-based face recognition, due to the vast difference in visual quality between the domains and the…

Computer Vision and Pattern Recognition · Computer Science 2017-08-15 Kihyuk Sohn , Sifei Liu , Guangyu Zhong , Xiang Yu , Ming-Hsuan Yang , Manmohan Chandraker

Super-resolution reconstruction (SRR) is a process aimed at enhancing spatial resolution of images, either from a single observation, based on the learned relation between low and high resolution, or from multiple images presenting the same…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Michal Kawulok , Pawel Benecki , Szymon Piechaczek , Krzysztof Hrynczenko , Daniel Kostrzewa , Jakub Nalepa

This paper proposes a novel face recognition algorithm based on large-scale supervised hierarchical feature learning. The approach consists of two parts: hierarchical feature learning and large-scale model learning. The hierarchical feature…

Computer Vision and Pattern Recognition · Computer Science 2014-07-08 Jianguo Li , Yurong Chen

Scale variation is one of the most challenging problems in face detection. Modern face detectors employ feature pyramids to deal with scale variation. However, it might break the feature consistency across different scales of faces. In this…

Computer Vision and Pattern Recognition · Computer Science 2021-05-24 Leilei Cao , Yao Xiao , Lin Xu

Face recognition has the perception of a solved problem, however when tested at the million-scale exhibits dramatic variation in accuracies across the different algorithms. Are the algorithms very different? Is access to good/big training…

Computer Vision and Pattern Recognition · Computer Science 2017-05-02 Aaron Nech , Ira Kemelmacher-Shlizerman

To achieve good performance in face recognition, a large scale training dataset is usually required. A simple yet effective way to improve recognition performance is to use a dataset as large as possible by combining multiple datasets in…

Computer Vision and Pattern Recognition · Computer Science 2021-01-15 Gaoang Wang , Lin Chen , Tianqiang Liu , Mingwei He , Jiebo Luo

Portrait pictures, which typically feature both human subjects and natural backgrounds, are one of the most prevalent forms of photography on social media. Existing image super-resolution (ISR) techniques generally focus either on generic…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Renjie Li , Zihao Zhu , Xiaoyu Wang , Zhengzhong Tu

The massive availability of cameras results in a wide variability of imaging conditions, producing large intra-class variations and a significant performance drop if heterogeneous images are compared for person recognition. However, as…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Fernando Alonso-Fernandez , Kiran B. Raja , R. Raghavendra , Cristoph Busch , Josef Bigun , Ruben Vera-Rodriguez , Julian Fierrez

The difficulty of image recognition has gradually increased from general category recognition to fine-grained recognition and to the recognition of some subtle attributes such as temperature and geolocation. In this paper, we try to focus…

Computer Vision and Pattern Recognition · Computer Science 2017-07-21 Hong-Yu Zhou , Bin-Bin Gao , Jianxin Wu

Visual object detection has achieved unprecedented ad-vance with the rise of deep convolutional neural networks.However, detecting tiny objects (for example tiny per-sons less than 20 pixels) in large-scale images remainsnot well…

Computer Vision and Pattern Recognition · Computer Science 2019-12-24 Xuehui Yu , Yuqi Gong , Nan Jiang , Qixiang Ye , Zhenjun Han

Cross-view image matching aims to match images of the same target scene acquired from different platforms. With the rapid development of drone technology, cross-view matching by neural network models has been a widely accepted choice for…

Computer Vision and Pattern Recognition · Computer Science 2023-01-24 Runzhe Zhu , Ling Yin , Mingze Yang , Fei Wu , Yuncheng Yang , Wenbo Hu