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Visual chart recognition systems are gaining increasing attention due to the growing demand for automatically identifying table headers and values from chart images. Current methods rely on keypoint detection to estimate data element shapes…

计算机视觉与模式识别 · 计算机科学 2023-08-16 Wenyuan Xue , Dapeng Chen , Baosheng Yu , Yifei Chen , Sai Zhou , Wei Peng

Community detection, aiming to group the graph nodes into clusters with dense inner-connection, is a fundamental graph mining task. Recently, it has been studied on the heterogeneous graph, which contains multiple types of nodes and edges,…

社会与信息网络 · 计算机科学 2021-09-07 Linhao Luo , Yixiang Fang , Xin Cao , Xiaofeng Zhang , Wenjie Zhang

Charts represent an essential source of visual information in documents and facilitate a deep understanding and interpretation of information typically conveyed numerically. In the scientific literature, there are many charts, each with its…

计算机视觉与模式识别 · 计算机科学 2023-07-11 Anurag Dhote , Mohammed Javed , David S Doermann

Context is an important factor in computer vision as it offers valuable information to clarify and analyze visual data. Utilizing the contextual information inherent in an image or a video can improve the precision and effectiveness of…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Mahtab Jamali , Paul Davidsson , Reza Khoshkangini , Martin Georg Ljungqvist , Radu-Casian Mihailescu

Occlusion removal is an interesting application of image enhancement, for which, existing work suggests manually-annotated or domain-specific occlusion removal. No work tries to address automatic occlusion detection and removal as a…

计算机视觉与模式识别 · 计算机科学 2019-05-08 Kumara Kahatapitiya , Dumindu Tissera , Ranga Rodrigo

Modern deep neural network based object detection methods typically classify candidate proposals using their interior features. However, global and local surrounding contexts that are believed to be valuable for object detection are not…

计算机视觉与模式识别 · 计算机科学 2016-03-25 Jianan Li , Yunchao Wei , Xiaodan Liang , Jian Dong , Tingfa Xu , Jiashi Feng , Shuicheng Yan

Charts are a powerful tool for visually conveying complex data, but their comprehension poses a challenge due to the diverse chart types and intricate components. Existing chart comprehension methods suffer from either heuristic rules or an…

计算机视觉与模式识别 · 计算机科学 2023-04-06 Zhi-Qi Cheng , Qi Dai , Siyao Li , Jingdong Sun , Teruko Mitamura , Alexander G. Hauptmann

We present a context aware object detection method based on a retrieve-and-transform scene layout model. Given an input image, our approach first retrieves a coarse scene layout from a codebook of typical layout templates. In order to…

计算机视觉与模式识别 · 计算机科学 2019-12-10 Tao Wang , Xuming He , Yuanzheng Cai , Guobao Xiao

Existing state-of-the-art salient object detection networks rely on aggregating multi-level features of pre-trained convolutional neural networks (CNNs). Compared to high-level features, low-level features contribute less to performance but…

计算机视觉与模式识别 · 计算机科学 2019-04-19 Zhe Wu , Li Su , Qingming Huang

Contexts play an important role in the saliency detection task. However, given a context region, not all contextual information is helpful for the final task. In this paper, we propose a novel pixel-wise contextual attention network, i.e.,…

计算机视觉与模式识别 · 计算机科学 2018-04-04 Nian Liu , Junwei Han , Ming-Hsuan Yang

Detecting anomalies in surveillance footage is inherently challenging due to their unpredictable and context-dependent nature. This work introduces a novel context-aware zero-shot anomaly detection framework that identifies abnormal events…

计算机视觉与模式识别 · 计算机科学 2025-08-28 Md. Rashid Shahriar Khan , Md. Abrar Hasan , Mohammod Tareq Aziz Justice

Object detection is a fundamental problem in image understanding. One popular solution is the R-CNN framework and its fast versions. They decompose the object detection problem into two cascaded easier tasks: 1) generating object proposals…

计算机视觉与模式识别 · 计算机科学 2016-04-13 Bin Yang , Junjie Yan , Zhen Lei , Stan Z. Li

Street view images classification aiming at urban land use analysis is difficult because the class labels (e.g., commercial area), are concepts with higher abstract level compared to the ones of general visual tasks (e.g., persons and…

计算机视觉与模式识别 · 计算机科学 2021-03-22 Kun Zhao , Yongkun Liu , Siyuan Hao , Shaoxing Lu , Hongbin Liu , Lijian Zhou

Temporal Action Detection (TAD), the task of localizing and classifying actions in untrimmed video, remains challenging due to action overlaps and variable action durations. Recent findings suggest that TAD performance is dependent on the…

计算机视觉与模式识别 · 计算机科学 2024-09-09 Aglind Reka , Diana Laura Borza , Dominick Reilly , Michal Balazia , Francois Bremond

We present a novel problem setting in zero-shot learning, zero-shot object recognition and detection in the context. Contrary to the traditional zero-shot learning methods, which simply infers unseen categories by transferring knowledge…

计算机视觉与模式识别 · 计算机科学 2019-04-25 Ruotian Luo , Ning Zhang , Bohyung Han , Linjie Yang

Automatic data extraction from charts is challenging for two reasons: there exist many relations among objects in a chart, which is not a common consideration in general computer vision problems; and different types of charts may not be…

计算机视觉与模式识别 · 计算机科学 2019-07-01 Xiaoyi Liu , Diego Klabjan , Patrick NBless

Existing semantic segmentation models heavily rely on dense pixel-wise annotations. To reduce the annotation pressure, we focus on a challenging task named zero-shot semantic segmentation, which aims to segment unseen objects with zero…

计算机视觉与模式识别 · 计算机科学 2020-08-18 Zhangxuan Gu , Siyuan Zhou , Li Niu , Zihan Zhao , Liqing Zhang

Attention-based encoder-decoder framework is widely used in the scene text recognition task. However, for the current state-of-the-art(SOTA) methods, there is room for improvement in terms of the efficient usage of local visual and global…

计算机视觉与模式识别 · 计算机科学 2021-11-16 Mengmeng Cui , Wei Wang , Jinjin Zhang , Liang Wang

Point cloud based retrieval for place recognition is an emerging problem in vision field. The main challenge is how to find an efficient way to encode the local features into a discriminative global descriptor. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2019-04-23 Wenxiao Zhang , Chunxia Xiao

The advances in AI-enabled techniques have accelerated the creation and automation of visualizations in the past decade. However, presenting visualizations in a descriptive and generative format remains a challenge. Moreover, current…

人机交互 · 计算机科学 2024-03-28 Qing Chen , Ying Chen , Ruishi Zou , Wei Shuai , Yi Guo , Jiazhe Wang , Nan Cao