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In this work, we present Detective - an attentive object detector that identifies objects in images in a sequential manner. Our network is based on an encoder-decoder architecture, where the encoder is a convolutional neural network, and…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Amine Kechaou , Manuel Martinez , Monica Haurilet , Rainer Stiefelhagen

This paper develops a novel encoder-decoder deep network architecture which exploits the several contextual frames of 2D+t sequential images in a sliding window centered at current frame to segment 2D vessel masks from the current frame.…

Computer Vision and Pattern Recognition · Computer Science 2021-02-11 Dongdong Hao , Song Ding , Linwei Qiu , Yisong Lv , Baowei Fei , Yueqi Zhu , Binjie Qin

Encoder-decoder models have become an effective approach for sequence learning tasks like machine translation, image captioning and speech recognition, but have yet to show competitive results for handwritten text recognition. To this end,…

Computer Vision and Pattern Recognition · Computer Science 2019-07-16 Johannes Michael , Roger Labahn , Tobias Grüning , Jochen Zöllner

Unsupervised video object segmentation aims to segment a target object in the video without a ground truth mask in the initial frame. This challenging task requires extracting features for the most salient common objects within a video…

Computer Vision and Pattern Recognition · Computer Science 2022-09-09 Minhyeok Lee , Suhwan Cho , Seunghoon Lee , Chaewon Park , Sangyoun Lee

Recent co-part segmentation methods mostly operate in a supervised learning setting, which requires a large amount of annotated data for training. To overcome this limitation, we propose a self-supervised deep learning method for co-part…

Computer Vision and Pattern Recognition · Computer Science 2021-04-12 Aliaksandr Siarohin , Subhankar Roy , Stéphane Lathuilière , Sergey Tulyakov , Elisa Ricci , Nicu Sebe

Encoder-decoder networks with attention have proven to be a powerful way to solve many sequence-to-sequence tasks. In these networks, attention aligns encoder and decoder states and is often used for visualizing network behavior. However,…

Machine Learning · Computer Science 2021-10-29 Kyle Aitken , Vinay V Ramasesh , Yuan Cao , Niru Maheswaranathan

To exploit high temporal correlations in video frames of the same scene, the current frame is predicted from the already-encoded reference frames using block-based motion estimation and compensation techniques. While this approach can…

Computer Vision and Pattern Recognition · Computer Science 2022-08-16 S. M. A. K. Rajin , M. Murshed , M. Paul , S. W. Teng , J. Ma

We propose a deep neural network for the prediction of future frames in natural video sequences. To effectively handle complex evolution of pixels in videos, we propose to decompose the motion and content, two key components generating…

Computer Vision and Pattern Recognition · Computer Science 2018-01-09 Ruben Villegas , Jimei Yang , Seunghoon Hong , Xunyu Lin , Honglak Lee

This paper presents a new self-supervised system for learning to detect novel and previously unseen categories of objects in images. The proposed system receives as input several unlabeled videos of scenes containing various objects. The…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Juntao Tan , Changkyu Song , Abdeslam Boularias

We present a novel method of integrating motion and appearance cues for foreground object segmentation in unconstrained videos. Unlike conventional methods encoding motion and appearance patterns individually, our method puts particular…

Computer Vision and Pattern Recognition · Computer Science 2019-04-17 Chunchao Guo , Jianhuang Lai , Xiaohua Xie

Human motion capture data has been widely used in data-driven character animation. In order to generate realistic, natural-looking motions, most data-driven approaches require considerable efforts of pre-processing, including motion…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Noshaba Cheema , Somayeh Hosseini , Janis Sprenger , Erik Herrmann , Han Du , Klaus Fischer , Philipp Slusallek

In this paper, we propose a method for temporal segmentation of human repetitive actions based on frequency analysis of kinematic parameters, zero-velocity crossing detection, and adaptive k-means clustering. Since the human motion data may…

Computer Vision and Pattern Recognition · Computer Science 2015-12-15 Qifei Wang , Gregorij Kurillo , Ferda Ofli , Ruzena Bajcsy

We present a domain- and user-preference-agnostic approach to detect highlightable excerpts from human-centric videos. Our method works on the graph-based representation of multiple observable human-centric modalities in the videos, such as…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Uttaran Bhattacharya , Gang Wu , Stefano Petrangeli , Viswanathan Swaminathan , Dinesh Manocha

The problem of determining whether an object is in motion, irrespective of camera motion, is far from being solved. We address this challenging task by learning motion patterns in videos. The core of our approach is a fully convolutional…

Computer Vision and Pattern Recognition · Computer Science 2017-04-11 Pavel Tokmakov , Karteek Alahari , Cordelia Schmid

Wearable cameras are becoming more and more popular in several applications, increasing the interest of the research community in developing approaches for recognizing actions from the first-person point of view. An open challenge in…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Mirco Planamente , Andrea Bottino , Barbara Caputo

We present a sparse coding-based framework for motion style decomposition and synthesis. Dynamic Time Warping is firstly used to synchronized input motions in the time domain as a pre-processing step. A sparse coding-based decomposition has…

Multimedia · Computer Science 2018-11-19 Xuan Thanh Nguyen , Thanh Ha Le , Hongchuan Yu

In this paper we explore the task of modeling semi-structured object sequences; in particular, we focus our attention on the problem of developing a structure-aware input representation for such sequences. Examples of such data include user…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Rudra Murthy , Riyaz Bhat , Chulaka Gunasekara , Siva Sankalp Patel , Hui Wan , Tejas Indulal Dhamecha , Danish Contractor , Marina Danilevsky

We present a solution for the goal of extracting a video from a single motion blurred image to sequentially reconstruct the clear views of a scene as beheld by the camera during the time of exposure. We first learn motion representation…

Computer Vision and Pattern Recognition · Computer Science 2022-01-31 Kuldeep Purohit , Anshul Shah , A. N. Rajagopalan

Magnetic resonance imaging (MRI) is a valuable clinical tool for displaying anatomical structures and aiding in accurate diagnosis. Medical image super-resolution (SR) reconstruction using deep learning techniques can enhance lesion…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Xin Hua , Zhijiang Du , Hongjian Yu , Jixin Maa

We present a method to extract a video sequence from a single motion-blurred image. Motion-blurred images are the result of an averaging process, where instant frames are accumulated over time during the exposure of the sensor.…

Computer Vision and Pattern Recognition · Computer Science 2018-04-12 Meiguang Jin , Givi Meishvili , Paolo Favaro