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Vision transformers have been successfully applied to image recognition tasks due to their ability to capture long-range dependencies within an image. However, there are still gaps in both performance and computational cost between…

计算机视觉与模式识别 · 计算机科学 2022-06-15 Jianyuan Guo , Kai Han , Han Wu , Yehui Tang , Xinghao Chen , Yunhe Wang , Chang Xu

To recognize textures many methods have been developed along the years. However, texture datasets may be hard to be classified due to artefacts such as a variety of scale, illumination and noise. This paper proposes the application of…

计算机视觉与模式识别 · 计算机科学 2016-12-21 Mariane Barros Neiva , Antoine Manzanera , Odemir Martinez Bruno

Most blind deconvolution methods usually pre-define a large kernel size to guarantee the support domain. Blur kernel estimation error is likely to be introduced, yielding severe artifacts in deblurring results. In this paper, we first…

计算机视觉与模式识别 · 计算机科学 2019-02-25 Li Si-Yao , Dongwei Ren , Qian Yin

Computed tomography (CT) can provide a 3D view of the patient's internal organs, facilitating disease diagnosis, but it incurs more radiation dose to a patient and a CT scanner is much more cost prohibitive than an X-ray machine too.…

图像与视频处理 · 电气工程与系统科学 2019-05-17 Xingde Ying , Heng Guo , Kai Ma , Jian Wu , Zhengxin Weng , Yefeng Zheng

Kernel methods are a highly effective and widely used collection of modern machine learning algorithms. A fundamental limitation of virtually all such methods are computations involving the kernel matrix that naively scale quadratically…

机器学习 · 计算机科学 2021-06-09 John Paul Ryan , Sebastian Ament , Carla P. Gomes , Anil Damle

Because of the powerful learning capability of deep neural networks, counting performance via density map estimation has improved significantly during the past several years. However, it is still very challenging due to severe occlusion,…

计算机视觉与模式识别 · 计算机科学 2018-09-21 Di Kang , Antoni Chan

Hyperspectral imagery is rich in spatial and spectral information. Using 3D-CNN can simultaneously acquire features of spatial and spectral dimensions to facilitate classification of features, but hyperspectral image information spectral…

图像与视频处理 · 电气工程与系统科学 2022-02-15 Guandong Li , Chunju Zhang

Graph learning is currently dominated by graph kernels, which, while powerful, suffer some significant limitations. Convolutional Neural Networks (CNNs) offer a very appealing alternative, but processing graphs with CNNs is not trivial. To…

计算机视觉与模式识别 · 计算机科学 2019-09-04 Antoine Jean-Pierre Tixier , Giannis Nikolentzos , Polykarpos Meladianos , Michalis Vazirgiannis

W projection is a commonly-used approach to allow interferometric imaging to be accelerated by Fast Fourier Transforms (FFTs), but it can require a huge amount of storage for convolution kernels. The kernels are not separable, but we show…

天体物理仪器与方法 · 物理学 2016-01-27 Bruce Merry

With the inspiration of vision transformers, the concept of depth-wise convolution revisits to provide a large Effective Receptive Field (ERF) using Large Kernel (LK) sizes for medical image segmentation. However, the segmentation…

图像与视频处理 · 电气工程与系统科学 2023-06-07 Ho Hin Lee , Quan Liu , Shunxing Bao , Qi Yang , Xin Yu , Leon Y. Cai , Thomas Li , Yuankai Huo , Xenofon Koutsoukos , Bennett A. Landman

The hybrid architecture of convolutional neural networks (CNNs) and Transformer are very popular for medical image segmentation. However, it suffers from two challenges. First, although a CNNs branch can capture the local image features…

图像与视频处理 · 电气工程与系统科学 2023-12-21 Tao Lei , Rui Sun , Xuan Wang , Yingbo Wang , Xi He , Asoke Nandi

The discrete cosine transform (DCT) is a relevant tool in signal processing applications, mainly known for its good decorrelation properties. Current image and video coding standards -- such as JPEG and HEVC -- adopt the DCT as a…

图像与视频处理 · 电气工程与系统科学 2022-12-09 T. L. T. da Silveira , D. R. Canterle , D. F. G. Coelho , V. A. Coutinho , F. M. Bayer , R. J. Cintra

The mainstream crowd counting methods regress density map and integrate it to obtain counting results. Since the density representation to one head accords to its adjacent distribution, it embeds the same category objects with variant…

计算机视觉与模式识别 · 计算机科学 2022-12-06 Qi Wang , Juncheng Wang , Junyu Gao , Yuan Yuan , Xuelong Li

The dominant image-to-image translation methods are based on fully convolutional networks, which extract and translate an image's features and then reconstruct the image. However, they have unacceptable computational costs when working with…

计算机视觉与模式识别 · 计算机科学 2022-07-12 Yuda Song , Hui Qian , Xin Du

In this paper, we propose a novel perspective-guided convolution (PGC) for convolutional neural network (CNN) based crowd counting (i.e. PGCNet), which aims to overcome the dramatic intra-scene scale variations of people due to the…

计算机视觉与模式识别 · 计算机科学 2019-09-17 Zhaoyi Yan , Yuchen Yuan , Wangmeng Zuo , Xiao Tan , Yezhen Wang , Shilei Wen , Errui Ding

Following the very recent line of work on the ``generalized min-max'' (GMM) kernel, this study proposes the ``generalized intersection'' (GInt) kernel and the related ``normalized generalized min-max'' (NGMM) kernel. In computer vision, the…

机器学习 · 统计学 2016-12-30 Ping Li

A new method for hierarchical clustering is presented. It combines treelets, a particular multiscale decomposition of data, with a projection on a reproducing kernel Hilbert space. The proposed approach, called kernel treelets (KT),…

机器学习 · 统计学 2019-07-24 Hedi Xia , Hector D. Ceniceros

Convolutional neural networks (CNNs) and Transformer-based models are being widely applied in medical image segmentation thanks to their ability to extract high-level features and capture important aspects of the image. However, there is…

图像与视频处理 · 电气工程与系统科学 2023-07-04 Binh-Duong Dinh , Thanh-Thu Nguyen , Thi-Thao Tran , Van-Truong Pham

This paper proposes a crowd counting method. Crowd counting is difficult because of large appearance changes of a target which caused by density and scale changes. Conventional crowd counting methods generally utilize one predictor (e,g.,…

计算机视觉与模式识别 · 计算机科学 2017-03-29 Shohei Kumagai , Kazuhiro Hotta , Takio Kurita

Transpose convolution has shown prominence in many deep learning applications. However, transpose convolution layers are computationally intensive due to the increased feature map size due to adding zeros after each element in each row and…

机器学习 · 计算机科学 2022-10-14 Vijay Srinivas Tida , Sai Venkatesh Chilukoti , Xiali Hei , Sonya Hsu