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Classifying the sub-categories of an object from the same super-category (e.g. bird species, car and aircraft models) in fine-grained visual classification (FGVC) highly relies on discriminative feature representation and accurate region…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Yifeng Ding , Shaoguo Wen , Jiyang Xie , Dongliang Chang , Zhanyu Ma , Zhongwei Si , Haibin Ling

Small object detection in aerial images suffers from severe information degradation during feature extraction due to limited pixel representations, where shallow spatial details fail to align effectively with semantic information, leading…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 PeiHuang Zheng , Yunlong Zhao , Zheng Cui , Yang Li

Single image dehazing is a challenging ill-posed problem that has drawn significant attention in the last few years. Recently, convolutional neural networks have achieved great success in image dehazing. However, it is still difficult for…

Computer Vision and Pattern Recognition · Computer Science 2021-02-25 Qiaosi Yi , Juncheng Li , Faming Fang , Aiwen Jiang , Guixu Zhang

Recently, the convolutional neural network has brought impressive improvements for object detection. However, detecting tiny objects in large-scale remote sensing images still remains challenging. First, the extreme large input size makes…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Jiangmiao Pang , Cong Li , Jianping Shi , Zhihai Xu , Huajun Feng

Tiny object detection is one of the key challenges in the field of object detection. The performance of most generic detectors dramatically decreases in tiny object detection tasks. The main challenge lies in extracting effective features…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Bing Cao , Haiyu Yao , Pengfei Zhu , Qinghua Hu

Advancements in adapting deep convolution architectures for Spiking Neural Networks (SNNs) have significantly enhanced image classification performance and reduced computational burdens. However, the inability of Multiplication-Free…

Neural and Evolutionary Computing · Computer Science 2024-04-29 Boyan Li , Luziwei Leng , Shuaijie Shen , Kaixuan Zhang , Jianguo Zhang , Jianxing Liao , Ran Cheng

Salient object detection, which aims to identify and locate the most salient pixels or regions in images, has been attracting more and more interest due to its various real-world applications. However, this vision task is quite challenging,…

Computer Vision and Pattern Recognition · Computer Science 2018-04-18 Pingping Zhang , Wei Liu , Huchuan Lu , Chunhua Shen

This paper addresses the problem of photometric stereo for non-Lambertian surfaces. Existing approaches often adopt simplified reflectance models to make the problem more tractable, but this greatly hinders their applications on real-world…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Guanying Chen , Kai Han , Kwan-Yee K. Wong

Object detection in unmanned aerial vehicle (UAV) remote sensing images poses significant challenges due to unstable image quality, small object sizes, complex backgrounds, and environmental occlusions. Small objects, in particular, occupy…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Xudong Wang , Yaxin Peng , Chaomin Shen

In this paper, we propose a novel deep neural network framework embedded with low-level features (LCNN) for salient object detection in complex images. We utilise the advantage of convolutional neural networks to automatically learn the…

Computer Vision and Pattern Recognition · Computer Science 2015-08-18 Hongyang Li , Huchuan Lu , Zhe Lin , Xiaohui Shen , Brian Price

SSD (Single Shot Multibox Detector) is one of the best object detection algorithms with both high accuracy and fast speed. However, SSD's feature pyramid detection method makes it hard to fuse the features from different scales. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-02-26 Zuoxin Li , Lu Yang , Fuqiang Zhou

Visual feature pyramid has shown its superiority in both effectiveness and efficiency in a wide range of applications. However, the existing methods exorbitantly concentrate on the inter-layer feature interactions but ignore the intra-layer…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Yu Quan , Dong Zhang , Liyan Zhang , Jinhui Tang

Previous unsupervised domain adaptation methods did not handle the cross-domain problem from the perspective of frequency for computer vision. The images or feature maps of different domains can be decomposed into the low-frequency…

Computer Vision and Pattern Recognition · Computer Science 2022-09-01 Zhaowen Li , Xu Zhao , Chaoyang Zhao , Ming Tang , Jinqiao Wang

In this paper we propose novel Deformable Part Networks (DPNs) to learn {\em pose-invariant} representations for 2D object recognition. In contrast to the state-of-the-art pose-aware networks such as CapsNet \cite{sabour2017dynamic} and STN…

Machine Learning · Statistics 2018-05-24 Ziming Zhang , Rongmei Lin , Alan Sullivan

Visual tempo characterizes the dynamics and the temporal scale of an action. Modeling such visual tempos of different actions facilitates their recognition. Previous works often capture the visual tempo through sampling raw videos at…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Ceyuan Yang , Yinghao Xu , Jianping Shi , Bo Dai , Bolei Zhou

Street Scene Change Detection (SSCD) aims to locate the changed regions between a given street-view image pair captured at different times, which is an important yet challenging task in the computer vision community. The intuitive way to…

Computer Vision and Pattern Recognition · Computer Science 2020-12-30 Yinjie Lei , Duo Peng , Pingping Zhang , Qiuhong Ke , Haifeng Li

This PhD research introduces three key contributions in the domain of object motion detection: Multi-Hierarchical Spiking Neural Network (MHSNN): A specialized four-layer Spiking Neural Network (SNN) architecture inspired by vertebrate…

Computer Vision and Pattern Recognition · Computer Science 2023-10-12 Pedro Machado

In this work, we introduce Neighborhood Feature Pooling (NFP), a novel pooling layer designed to enhance texture-aware representation learning for remote sensing image classification. The proposed NFP layer captures relationships between…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Fahimeh Orvati Nia , Amirmohammad Mohammadi , Salim Al Kharsa , Pragati Naikare , Zigfried Hampel-Arias , Joshua Peeples

Traffic sign detection is a challenging task for the unmanned driving system, especially for the detection of multi-scale targets and the real-time problem of detection. In the traffic sign detection process, the scale of the targets…

Computer Vision and Pattern Recognition · Computer Science 2021-12-24 Junfan Wang , Yi Chen , Mingyu Gao , Zhekang Dong

Small objects have relatively low resolution, the unobvious visual features which are difficult to be extracted, so the existing object detection methods cannot effectively detect small objects, and the detection speed and stability are…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Qingcai Wang , Hao Zhang , Xianggong Hong , Qinqin Zhou