Results 11 to 20 of about 738,031 (384)

A survey of face recognition techniques under occlusion [PDF]

arXiv, 2020
The limited capacity to recognize faces under occlusions is a long-standing problem that presents a unique challenge for face recognition systems and even for humans. The problem regarding occlusion is less covered by research when compared to other challenges such as pose variation, different expressions, etc.
Dan Zeng, R. Veldhuis, L. Spreeuwers
arxiv   +3 more sources

MirrorFlow: Exploiting Symmetries in Joint Optical Flow and Occlusion Estimation [PDF]

arXiv, 2017
Optical flow estimation is one of the most studied problems in computer vision, yet recent benchmark datasets continue to reveal problem areas of today's approaches. Occlusions have remained one of the key challenges. In this paper, we propose a symmetric optical flow method to address the well-known chicken-and-egg relation between optical flow and ...
Junhwa Hur, S. Roth
arxiv   +3 more sources

Robust LSTM-Autoencoders for Face De-Occlusion in the Wild [PDF]

arXiv, 2016
Face recognition techniques have been developed significantly in recent years. However, recognizing faces with partial occlusion is still challenging for existing face recognizers which is heavily desired in real-world applications concerning surveillance and security.
F. Zhao, Jiashi Feng, Jian Zhao, Wenhan Yang, Shuicheng Yan   +4 more
arxiv   +3 more sources

Deep Occlusion-Aware Instance Segmentation with Overlapping BiLayers [PDF]

Computer Vision and Pattern Recognition, 2021
Segmenting highly-overlapping objects is challenging, because typically no distinction is made between real object contours and occlusion boundaries. Unlike previous two-stage instance segmentation methods, we model image formation as composition of two ...
Lei Ke, Yu-Wing Tai, Chi-Keung Tang
semanticscholar   +1 more source

Trial of Endovascular Treatment of Acute Basilar-Artery Occlusion.

New England Journal of Medicine, 2022
BACKGROUND Data from trials investigating the effects and risks of endovascular thrombectomy for the treatment of stroke due to basilar-artery occlusion are limited.
Chunrong Tao, R. Nogueira, Yuyou Zhu, Jun Sun, Hongxing Han, Guangxiong Yuan, Changming Wen, Peiyang Zhou, Wenhuo Chen, Guoyong Zeng, Yuwen Li, Zhengfei Ma, Chuan-qing Yu, Junfeng Su, Zhiming Zhou, Zhongjun Chen, Geng Liao, Yaxuan Sun, Youquan Ren, Hui Zhang, Jie Chen, X. Yue, G. Xiao, Li Wang, Ruiying Liu, Wen-hua Liu, Yong Liu, Li Wang, Chao Zhang, Tianlong Liu, Jianlong Song, Rui Li, Pengfei Xu, Yamei Yin, Guoping Wang, B. Baxter, A. Qureshi, Xinfeng Liu, Wei Hu   +38 more
semanticscholar   +1 more source

Left Atrial Appendage Occlusion during Cardiac Surgery to Prevent Stroke.

New England Journal of Medicine, 2021
BACKGROUND Surgical occlusion of the left atrial appendage has been hypothesized to prevent ischemic stroke in patients with atrial fibrillation, but this has not been proved.
R. Whitlock, E. Belley‐Cote, D. Paparella, J. Healey, K. Brady, Mukul Sharma, W. Reents, P. Budera, Andony J Baddour, P. Fila, P. Devereaux, A. Bogachev-Prokophiev, A. Boening, K. Teoh, G. Tagarakis, M. Slaughter, A. Royse, S. McGuinness, M. Alings, P. Punjabi, C. Mazer, R. Folkeringa, A. Colli, Á. Avezum, J. Nakamya, K. Balasubramanian, J. Vincent, P. Voisine, A. Lamy, S. Yusuf, S. Connolly   +30 more
semanticscholar   +1 more source

Endovascular Therapy for Stroke Due to Basilar-Artery Occlusion.

New England Journal of Medicine, 2021
BACKGROUND The effectiveness of endovascular therapy in patients with stroke caused by basilar-artery occlusion has not been well studied. METHODS We randomly assigned patients within 6 hours after the estimated time of onset of a stroke due to basilar-
L. L. Langezaal, E. J. van der Hoeven, F. Mont’Alverne, J. J. F. de Carvalho, F. Lima, D. Dippel, A. van der Lugt, Rob H. Lo, J. Boiten, G. J. Lycklama à Nijeholt, J. Staals, W. V. van Zwam, P. Nederkoorn, C. Majoie, J. Gerber, M. Mazighi, M. Piotin, A. Zini, S. Vallone, J. Hofmeijer, S. Martins, C. Nolte, K. Szabo, F. Dias, D. Abud, M. Wermer, M. Remmers, H. Schneider, C. Rueckert, K. D. de Laat, A. Yoo, P. van Doormaal, A. V. van Es, B. Emmer, P. Michel, V. Puetz, H. Audebert, O. Pontes-Neto, J. Vos, L. Kappelle, A. Algra, W. Schonewille   +41 more
semanticscholar   +1 more source

Region Attention Networks for Pose and Occlusion Robust Facial Expression Recognition [PDF]

IEEE Transactions on Image Processing, 2019
Occlusion and pose variations, which can change facial appearance significantly, are two major obstacles for automatic Facial Expression Recognition (FER). Though automatic FER has made substantial progresses in the past few decades, occlusion-robust and
K. Wang, Xiaojiang Peng, Jianfei Yang, Debin Meng, Y. Qiao   +4 more
semanticscholar   +1 more source

MaskFlownet: Asymmetric Feature Matching With Learnable Occlusion Mask [PDF]

Computer Vision and Pattern Recognition, 2020
Feature warping is a core technique in optical flow estimation; however, the ambiguity caused by occluded areas during warping is a major problem that remains unsolved.
Shengyu Zhao, Yilun Sheng, Yue Dong, E. Chang, Yan Xu   +4 more
semanticscholar   +1 more source

Occluded Prohibited Items Detection: An X-ray Security Inspection Benchmark and De-occlusion Attention Module [PDF]

ACM Multimedia, 2020
Security inspection often deals with a piece of baggage or suitcase where objects are heavily overlapped with each other, resulting in an unsatisfactory performance for prohibited items detection in X-ray images.
Yanlu Wei, Renshuai Tao, Jay Zhangjie Wu, Yuqing Ma, Libo Zhang, Xianglong Liu   +5 more
semanticscholar   +1 more source