Our Spectral–Spatial GNN model surpasses traditional segmentation methods in accuracy for both whole tumor and sub-regions, validated by metrics such as the dice coefficient and accuracy. For the necrotic core, the Spectral–Spatial GNN model showed a 10.6% improvement over the Spatial GNN and 8...
1. 概述 前面讲了 Spatial-GNNGraph Neural Networks (GNN)(一):Spatial - GNN的基本原理和一些典型的实现。这一篇主要介绍一下另外一大类:Spectral-GNN。这一类一开始理解起来会比较抽象,因为涉及太多数学、信号处理等方面的内容,我一开始也陷入了这些困境里面。但是通过阅读了几位大牛的知乎或者博客之后,发现其实...
Deep-learning-based intelligent neonatal seizure identification using spatial and spectral GNN optimized with the Aquila algorithmdoi:10.3934/math.2024958Nelson, MadhusundarRajendran, SurendranKhalaf, Osamah IbrahimHamam, HabibAIMS Mathematics
Spatial imaging of modifications to fluorescence lifetime and intensity by individual Ag nanoparticles. Appl. Phys. Lett. 91, 123122 (2007). 4. Anger, P., Bharadwaj, P. & Novotny, L. Enhancement and quenching of single-molecule fluorescence. Phys. Rev. Lett. 96, 113002 (2006). 5. ...
The spectrum acquired by both EO1-Hyperion and PRISMA satellites has a spatial resolution of 30 m (i.e., covers an area of 900 m2). If the surface is not homogenous, the measured spectrum is a mix of different materials, which can influence the composition retrieval. In those cases, ...
The intrinsic details of both spatial and spectral structures can be preserved after significant denoising. Keywords: image processing; hyperspectral image; image denoising; spectral dictionary; sparse coding 1. Introduction Hyperspectral images (HSIs) are widely used in military, geological exploration, ...
Some applications have been suggested, such as lattice spectroscopy [9] and spatial-coherence spectroscopy [10]. Another new effect called the spectral shift amplification with water has been proposed by the author [11]. We showed that, at inclined incidence, the blue/red shifts can be ...
These simulations also revealed that whilst a CSCA that groups P × P pixels of size Y µm × Y µm can maintain the spatial resolution of Y µm × Y µm pixels, its spectral performance is not as good as if the pixels were replaced with a single pixel of size PY µm ...
International Journal of Environmental Research and Public Health Article Spectral Estimation Model Construction of Heavy Metals in Mining Reclamation Areas Jihong Dong 1,2,*, Wenting Dai 1,2, Jiren Xu 3 and Songnian Li 1,4 1 School of Environment Science and Spatial Informatics, China University...
sensors Article Apple Fruit Recognition Algorithm Based on Multi-Spectral Dynamic Image Analysis Juan Feng 1,2, Lihua Zeng 1,3 and Long He 1,* 1 Department of Agricultural and Biological Engineering, Pennsylvania State University, University Park, PA 16802, USA; juf618@psu.edu (J.F.); lzz...