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Recent works attempt to improve scene parsing performance by exploring different levels of contexts, and typically train a well-designed convolutional network to exploit useful contexts across all pixels equally. However, in this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2019-11-06 Jun Fu , Jing Liu , Yuhang Wang , Yong Li , Yongjun Bao , Jinhui Tang , Hanqing Lu

Scene parsing is challenging as it aims to assign one of the semantic categories to each pixel in scene images. Thus, pixel-level features are desired for scene parsing. However, classification networks are dominated by the discriminative…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Tianyi Wu , Sheng Tang , Rui Zhang , Guodong Guo , Yongdong Zhang

Co-occurrent visual pattern makes aggregating contextual information a common paradigm to enhance the pixel representation for semantic image segmentation. The existing approaches focus on modeling the context from the perspective of the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-30 Zhenchao Jin , Bin Liu , Qi Chu , Nenghai Yu

In the field of medical CT image processing, convolutional neural networks (CNNs) have been the dominant technique.Encoder-decoder CNNs utilise locality for efficiency, but they cannot simulate distant pixel interactions properly.Recent…

Image and Video Processing · Electrical Eng. & Systems 2022-11-03 Hongyang He , Feng Ziliang , Yuanhang Zheng , Shudong Huang , HaoBing Gao

BiSeNet has been proved to be a popular two-stream network for real-time segmentation. However, its principle of adding an extra path to encode spatial information is time-consuming, and the backbones borrowed from pretrained tasks, e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2021-04-28 Mingyuan Fan , Shenqi Lai , Junshi Huang , Xiaoming Wei , Zhenhua Chai , Junfeng Luo , Xiaolin Wei

In this paper, we address the semantic segmentation task with a deep network that combines contextual features and spatial information. The proposed Cross Attention Network is composed of two branches and a Feature Cross Attention (FCA)…

Computer Vision and Pattern Recognition · Computer Science 2019-07-26 Mengyu Liu , Hujun Yin

In saliency detection, every pixel needs contextual information to make saliency prediction. Previous models usually incorporate contexts holistically. However, for each pixel, usually only part of its context region is useful and…

Computer Vision and Pattern Recognition · Computer Science 2018-12-18 Nian Liu , Junwei Han , Ming-Hsuan Yang

Semantic segmentation requires both rich spatial information and sizeable receptive field. However, modern approaches usually compromise spatial resolution to achieve real-time inference speed, which leads to poor performance. In this…

Computer Vision and Pattern Recognition · Computer Science 2018-08-03 Changqian Yu , Jingbo Wang , Chao Peng , Changxin Gao , Gang Yu , Nong Sang

In recent years, how to strike a good trade-off between accuracy and inference speed has become the core issue for real-time semantic segmentation applications, which plays a vital role in real-world scenarios such as autonomous driving…

Computer Vision and Pattern Recognition · Computer Science 2021-07-19 Guangwei Gao , Guoan Xu , Yi Yu , Jin Xie , Jian Yang , Dong Yue

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.,…

Computer Vision and Pattern Recognition · Computer Science 2018-04-04 Nian Liu , Junwei Han , Ming-Hsuan Yang

Instance segmentation and panoptic segmentation is being paid more and more attention in recent years. In comparison with bounding box based object detection and semantic segmentation, instance segmentation can provide more analytical…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Xiaolong Liu , Yuqing Hou , Anbang Yao , Yurong Chen , Keqiang Li

The encode-decoder framework has shown recent success in image captioning. Visual attention, which is good at detailedness, and semantic attention, which is good at comprehensiveness, have been separately proposed to ground the caption on…

Computation and Language · Computer Science 2018-08-28 Fenglin Liu , Xuancheng Ren , Yuanxin Liu , Houfeng Wang , Xu Sun

Pixel-wise semantic segmentation for visual scene understanding not only needs to be accurate, but also efficient in order to find any use in real-time application. Existing algorithms even though are accurate but they do not focus on…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Abhishek Chaurasia , Eugenio Culurciello

Current semantic segmentation methods focus only on mining "local" context, i.e., dependencies between pixels within individual images, by context-aggregation modules (e.g., dilated convolution, neural attention) or structure-aware…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Wenguan Wang , Tianfei Zhou , Fisher Yu , Jifeng Dai , Ender Konukoglu , Luc Van Gool

Over the past few years, state-of-the-art image segmentation algorithms are based on deep convolutional neural networks. To render a deep network with the ability to understand a concept, humans need to collect a large amount of pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2020-03-25 Weide Liu , Chi Zhang , Guosheng Lin , Fayao Liu

Semantic segmentation for lightweight object parsing is a very challenging task, because both accuracy and efficiency (e.g., execution speed, memory footprint or computational complexity) should all be taken into account. However, most…

Computer Vision and Pattern Recognition · Computer Science 2020-04-22 Bin Jiang , Wenxuan Tu , Chao Yang , Junsong Yuan

Segmentation of ultra-high resolution images is increasingly demanded, yet poses significant challenges for algorithm efficiency, in particular considering the (GPU) memory limits. Current approaches either downsample an ultra-high…

Computer Vision and Pattern Recognition · Computer Science 2021-03-04 Wuyang Chen , Ziyu Jiang , Zhangyang Wang , Kexin Cui , Xiaoning Qian

Assigning a label to each pixel in an image, namely semantic segmentation, has been an important task in computer vision, and has applications in autonomous driving, robotic navigation, localization, and scene understanding. Fully…

Computer Vision and Pattern Recognition · Computer Science 2019-05-22 Sercan Türkmen , Janne Heikkilä

Spatial attention mechanism has been widely used in semantic segmentation of remote sensing images given its capability to model long-range dependencies. Many methods adopting spatial attention mechanism aggregate contextual information…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Xiaowen Ma , Rui Che , Tingfeng Hong , Mengting Ma , Ziyan Zhao , Tian Feng , Wei Zhang

Image segmentation is a historic and significant computer vision task. With the help of deep learning techniques, image semantic segmentation has made great progresses. Over recent years, based on guidance of attention mechanism compared…

Computer Vision and Pattern Recognition · Computer Science 2022-10-12 Dongwei Sun , Zhuolin Gao