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With the rapid development of spaceborne imaging techniques, object detection in optical remote sensing imagery has drawn much attention in recent decades. While many advanced works have been developed with powerful learning algorithms, the…

Computer Vision and Pattern Recognition · Computer Science 2019-12-19 Xin Wu , Danfeng Hong , Jiaojiao Tian , Jocelyn Chanussot , Wei Li , Ran Tao

Camouflaged object detection (COD) primarily relies on semantic or instance segmentation methods. While these methods have made significant advancements in identifying the contours of camouflaged objects, they may be inefficient or…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Zhimeng Xin , Tianxu Wu , Shiming Chen , Shuo Ye , Zijing Xie , Yixiong Zou , Xinge You , Yufei Guo

Camouflaged object detection (COD) aims to accurately detect objects hidden in the surrounding environment. However, the existing COD methods mainly locate camouflaged objects in the RGB domain, their performance has not been fully…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Runmin Cong , Mengyao Sun , Sanyi Zhang , Xiaofei Zhou , Wei Zhang , Yao Zhao

Optical Fourier surfaces (OFSs), featuring sinusoidally profiled diffractive elements, manipulate light through patterned nanostructures and incident angle modulation. Compared to altering structural parameters, tuning elevation and azimuth…

We present Fast Fourier Color Constancy (FFCC), a color constancy algorithm which solves illuminant estimation by reducing it to a spatial localization task on a torus. By operating in the frequency domain, FFCC produces lower error rates…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Jonathan T. Barron , Yun-Ta Tsai

Existing studies on salient object detection (SOD) focus on extracting distinct objects with edge information and aggregating multi-level features to improve SOD performance. To achieve satisfactory performance, the methods employ refined…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Min Seok Lee , Wooseok Shin , Sung Won Han

Recently salient object detection has witnessed remarkable improvement owing to the deep convolutional neural networks which can harvest powerful features for images. In particular, state-of-the-art salient object detection methods enjoy…

Computer Vision and Pattern Recognition · Computer Science 2019-05-10 Haofeng Li , Guanbin Li , Yizhou Yu

This paper focuses on camouflaged object detection (COD), which is a task to detect objects hidden in the background. Most of the current COD models aim to highlight the target object directly while outputting ambiguous camouflaged…

Computer Vision and Pattern Recognition · Computer Science 2021-11-01 Nobukatsu Kajiura , Hong Liu , Shin'ichi Satoh

Fourier domain mode-locking (FDML) has been a popular laser design for high speed optical frequency domain imaging (OFDI) but achieving long coherence lengths, and therefore imaging range, has been challenging. The narrow instantaneous…

Optics · Physics 2019-01-16 Norman Lippok , Meena Siddiqui , Benjamin J. Vakoc , Brett E. Bouma

Semantic segmentation involves assigning a specific category to each pixel in an image. While Vision Transformer-based models have made significant progress, current semantic segmentation methods often struggle with precise predictions in…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Guoan Xu , Wenfeng Huang , Tao Wu , Ligeng Chen , Wenjing Jia , Guangwei Gao , Xiatian Zhu , Stuart Perry

Fourier ptychography (FP) is an enabling imaging technique that produces high-resolution complex-valued images with extended field coverages. However, when FP images a phase object with any specific spatial frequency, the captured images…

Off-road semantic segmentation suffers from thick, inconsistent boundaries, sparse supervision for rare classes, and pervasive label noise. Designs that fuse only at low resolution blur edges and propagate local errors, whereas maintaining…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Seongkyu Choi , Jhonghyun An

This work introduces efficient and accurate spectral solvers for nonlocal equations on bounded domains. These spectral solvers exploit the fact that integration in the nonlocal formulation transforms into multiplication in Fourier space and…

Numerical Analysis · Mathematics 2025-12-01 Ilyas Mustapha , Bacim Alali , Nathan Albin

Conditioning image generation facilitates seamless editing and the creation of photorealistic images. However, conditioning on noisy or Out-of-Distribution (OoD) images poses significant challenges, particularly in balancing fidelity to the…

Computer Vision and Pattern Recognition · Computer Science 2024-08-23 Bastien van Delft , Tommaso Martorella , Alexandre Alahi

The rapid development of deep learning has significantly improved salient object detection (SOD) combining both RGB and thermal (RGB-T) images. However, existing Transformer-based RGB-T SOD models with quadratic complexity are…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Pengfei Lyu , Xiaosheng Yu , Pak-Hei Yeung , Chengdong Wu , Jagath C. Rajapakse

In [1], we inaugurated a new area of optimal control (OC) theory that we called "periodic fractional OC theory," which was developed to find optimal ways to periodically control a fractional dynamic system. The typical mathematical…

Optimization and Control · Mathematics 2023-05-02 Kareem T. Elgindy

Object detection is a fundamental task in computer vision and has many applications in image processing. This paper proposes a new approach for object detection by applying scale invariant feature transform (SIFT) in an automatic…

Computer Vision and Pattern Recognition · Computer Science 2012-10-29 Reza Oji , Farshad Tajeripour

Fourier series multiscale method, a concise and efficient analytical approach for multiscale computation, will be developed out of this series of papers. In the sixth paper, exact analysis of the wave propagation in a beam with rectangular…

Numerical Analysis · Mathematics 2022-08-30 Weiming Sun , Zimao Zhang

Few-shot object detection (FSOD) is challenging due to unstable optimization and limited generalization arising from the scarcity of training samples. To address these issues, we propose a hybrid ensemble decoder that enhances…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Xuanlong Yu , Youyang Sha , Longfei Liu , Xi Shen , Di Yang

Two-dimensional color codes are a promising candidate for fault-tolerant quantum computing, as they have high encoding rates, transversal implementation of logical Clifford gates, and resource-efficient magic state preparation schemes.…

Quantum Physics · Physics 2025-01-29 Seok-Hyung Lee , Andrew Li , Stephen D. Bartlett