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Motion representation plays a vital role in human action recognition in videos. In this study, we introduce a novel compact motion representation for video action recognition, named Optical Flow guided Feature (OFF), which enables the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-10 Shuyang Sun , Zhanghui Kuang , Wanli Ouyang , Lu Sheng , Wei Zhang

Deep learning has established many new state of the art solutions in the last decade in areas such as object, scene and speech recognition. In particular Convolutional Neural Network (CNN) is a category of deep learning which obtains…

Computer Vision and Pattern Recognition · Computer Science 2016-09-26 Vincent Andrearczyk , Paul F. Whelan

During the last years, Convolutional Neural Networks (CNNs) have achieved state-of-the-art performance in image classification. Their architectures have largely drawn inspiration by models of the primate visual system. However, while recent…

Computer Vision and Pattern Recognition · Computer Science 2017-08-24 Georgios Zoumpourlis , Alexandros Doumanoglou , Nicholas Vretos , Petros Daras

Loop filters are used in video coding to remove artifacts or improve performance. Recent advances in deploying convolutional neural network (CNN) to replace traditional loop filters show large gains but with problems for practical…

Multimedia · Computer Science 2018-05-17 Xiaodan Song , Jiabao Yao , Lulu Zhou , Li Wang , Xiaoyang Wu , Di Xie , Shiliang Pu

Porous media is widely distributed in nature, found in environments such as soil, rock formations, and plant tissues, and is crucial in applications like subsurface oil and gas extraction, medical drug delivery, and filtration systems.…

Geophysics · Physics 2025-01-03 Qingqi Zhao , Xiaoxue Han , Ruichang Guo , Cheng Chen

Standard video codecs rely on optical flow to guide inter-frame prediction: pixels from reference frames are moved via motion vectors to predict target video frames. We propose to learn binary motion codes that are encoded based on an input…

Image and Video Processing · Electrical Eng. & Systems 2019-12-12 André Nortje , Herman A. Engelbrecht , Herman Kamper

Human faces in surveillance videos often suffer from severe image blur, dramatic pose variations, and occlusion. In this paper, we propose a comprehensive framework based on Convolutional Neural Networks (CNN) to overcome challenges in…

Computer Vision and Pattern Recognition · Computer Science 2017-05-18 Changxing Ding , Dacheng Tao

Remote Sensing Scene Classification is a challenging and valuable research topic, in which Convolutional Neural Network (CNN) has played a crucial role. CNN can extract hierarchical convolutional features from remote sensing imagery, and…

Computer Vision and Pattern Recognition · Computer Science 2024-02-02 Yinzhu Cheng

Convolutional Neural Networks (CNNs) have exhibited great performance in discriminative feature learning for complex visual tasks. Besides discrimination power, interpretability is another important yet under-explored property for CNNs. One…

Computer Vision and Pattern Recognition · Computer Science 2023-12-20 Wengang Guo , Jiayi Yang , Huilin Yin , Qijun Chen , Wei Ye

In this paper, we propose a deep convolutional neural network (CNN) for anomaly detection in surveillance videos. The model is adapted from a typical auto-encoder working on video patches under the perspective of sparse combination…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Trong Nguyen Nguyen , Jean Meunier

Scene parsing is an important and challenging prob- lem in computer vision. It requires labeling each pixel in an image with the category it belongs to. Tradition- ally, it has been approached with hand-engineered features from color…

Machine Learning · Statistics 2014-11-18 Rahul Mohan

Most existing deep-learning-based single image dynamic scene blind deblurring (SIDSBD) methods usually design deep networks to directly remove the spatially-variant motion blurs from one inputted motion blurred image, without blur kernels…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Shu Tang , Yang Wu , Hongxing Qin , Xianzhong Xie , Shuli Yang , Jing Wang

Deep convolutional neural networks (CNN) have achieved great success. On the other hand, modeling structural information has been proved critical in many vision problems. It is of great interest to integrate them effectively. In a classical…

Computer Vision and Pattern Recognition · Computer Science 2016-11-03 Xiao Chu , Wanli Ouyang , Hongsheng Li , Xiaogang Wang

Convolutional Neural Network (CNN) based image segmentation has made great progress in recent years. However, video object segmentation remains a challenging task due to its high computational complexity. Most of the previous methods employ…

Computer Vision and Pattern Recognition · Computer Science 2019-07-23 Rui Hou , Chen Chen , Rahul Sukthankar , Mubarak Shah

We introduce a parameter sharing scheme, in which different layers of a convolutional neural network (CNN) are defined by a learned linear combination of parameter tensors from a global bank of templates. Restricting the number of templates…

Machine Learning · Computer Science 2019-03-15 Pedro Savarese , Michael Maire

In this paper, we propose an encoder-decoder convolutional neural network (CNN) architecture for estimating camera pose (orientation and location) from a single RGB-image. The architecture has a hourglass shape consisting of a chain of…

Computer Vision and Pattern Recognition · Computer Science 2017-08-25 Iaroslav Melekhov , Juha Ylioinas , Juho Kannala , Esa Rahtu

Various convolutional neural networks (CNNs) were developed recently that achieved accuracy comparable with that of human beings in computer vision tasks such as image recognition, object detection and tracking, etc. Most of these networks,…

Computer Vision and Pattern Recognition · Computer Science 2019-03-20 Tianchen Wang , Jinjun Xiong , Xiaowei Xu , Yiyu Shi

We present a deblurring method for scenes with occluding objects using a carefully designed layered blur model. Layered blur model is frequently used in the motion deblurring problem to handle locally varying blurs, which is caused by…

Computer Vision and Pattern Recognition · Computer Science 2016-11-30 Byeongjoo Ahn , Tae Hyun Kim , Wonsik Kim , Kyoung Mu Lee

Although Convolutional Neural Networks (CNN) have made good progress in image restoration, the intrinsic equivalence and locality of convolutions still constrain further improvements in image quality. Recent vision transformer and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Jun Shi , Bingcai Wei , Gang Zhou , Liye Zhang

Image restoration from a single image degradation type, such as blurring, hazing, random noise, and compression has been investigated for decades. However, image degradations in practice are often a mixture of several types of degradation.…

Computer Vision and Pattern Recognition · Computer Science 2018-12-27 Kazutaka Uchida , Masayuki Tanaka , Masatoshi Okutomi