Results 81 to 90 of about 471,167 (221)

A Two-Stage Gradient Ascent-Based Superpixel Framework for Adaptive Segmentation

Applied Sciences, 2019
Superpixel segmentation usually over-segments an image into fragments to extract regional features, thus linking up advanced computer vision tasks. In this work, a novel coarse-to-fine gradient ascent framework is proposed for superpixel-based color ...
Wangpeng He, Cheng Li, Yanzong Guo, Zhifei Wei, Baolong Guo   +4 more
doaj   +1 more source

Content-Sensitive Superpixel Generation with Boundary Adjustment

Applied Sciences, 2020
Superpixel segmentation has become a crucial tool in many image processing and computer vision applications. In this paper, a novel content-sensitive superpixel generation algorithm with boundary adjustment is proposed. First, the image local entropy was
Dong Zhang, Gang Xie, Jinchang Ren, Zhe Zhang, Wenliang Bao, Xinying Xu   +5 more
doaj   +1 more source

Nighttime sky/cloud image segmentation

, 2017
Imaging the atmosphere using ground-based sky cameras is a popular approach to study various atmospheric phenomena. However, it usually focuses on the daytime. Nighttime sky/cloud images are darker and noisier, and thus harder to analyze.
Dev, Soumyabrata, Lee, Yee Hui, Savoy, Florian M., Winkler, Stefan   +3 more
core   +1 more source

Segmenting Planar Superpixel Adjacency Graphs w.r.t. Non-planar Superpixel Affinity Graphs [PDF]

, 2013
We address the problem of segmenting an image into a previously unknown number of segments from the perspective of graph partitioning. Specifically, we consider minimum multicuts of superpixel affinity graphs in which all affinities between non-adjacent superpixels are negative.
Andres, B., Yarkony, J., Manjunath, B., Kirchhoff, S., Turetken, E., Fowlkes, C., Pfister, H.   +6 more
openaire   +2 more sources

Selective Multiple Classifiers for Weakly Supervised Semantic Segmentation

CAAI Transactions on Intelligence Technology, Volume 10, Issue 6, Page 1688-1702, December 2025.
ABSTRACT Existing weakly supervised semantic segmentation (WSSS) methods based on image‐level labels always rely on class activation maps (CAMs), which measure the relationships between features and classifiers. However, CAMs only focus on the most discriminative regions of images, resulting in their poor coverage performance.
Zilin Guo, Dongyue Wu, Changxin Gao, Nong Sang   +3 more
wiley   +1 more source

Automatic Superpixel-Based Clustering for Color Image Segmentation Using q-Generalized Pareto Distribution under Linear Normalization and Hunger Games Search

Mathematics, 2021
Superixel is one of the most efficient of the image segmentation approaches that are widely used for different applications. In this paper, we developed an image segmentation based on superpixel and an automatic clustering using q-Generalized Pareto ...
Mohamed Abd Elaziz, Esraa Osama Abo Zaid, Mohammed A. A. Al-qaness, Rehab Ali Ibrahim   +3 more
doaj   +1 more source

Region-based Skin Color Detection. [PDF]

, 2012
Skin color provides a powerful cue for complex computer vision applications. Although skin color detection has been an active research area for decades, the mainstream technology is based on the individual pixels. This paper presents a new region-based
Liu, D., Nait-Charif, H., Poudel, R.P.K., Zhang, Jian J.   +3 more
core  

Dual‐state six‐channel polarization multiplexing in reconfigurable metasurfaces

Nanophotonics, Volume 14, Issue 25, Page 4583-4593, December 2025.
Abstract Dynamically tunable metasurfaces based on phase‐change materials (PCMs) have become important platforms for realizing reconfigurable optical systems. Nevertheless, achieving multiple independent functionalities within a single device, particularly under polarization multiplexing, remains difficult due to limited design flexibility.
Sujun Xie, Tianxu Jia, Xiaoyue Ma, Bingjue Li, Ruohu Zhang, Zhigang Li, Binfeng Yun, Hyeonsu Heo, Nara Jeon, Guanghao Rui, Junsuk Rho   +10 more
wiley   +1 more source

Compact Spectral Imaging: A Review of Miniaturized and Integrated Systems

Laser &Photonics Reviews, Volume 19, Issue 21, November 6, 2025.
This review explores the rapid shift toward compact spectral imaging systems by examining four key design paradigms: Do‐It‐Yourself (DIY) platforms, freeform optics, filter‐on‐chip integration, and multifunctional metasurfaces. The discussion highlights critical applications in medicine, agriculture, and environmental monitoring, providing comparative ...
Sani Mukhtar, Amir Arbabi, Jaime Viegas
wiley   +1 more source

GASP : Geometric Association with Surface Patches

, 2014
A fundamental challenge to sensory processing tasks in perception and robotics is the problem of obtaining data associations across views. We present a robust solution for ascertaining potentially dense surface patch (superpixel) associations, requiring ...
Christensen, Henrik I., Li, Fuxin, Sawhney, Rahul   +2 more
core   +1 more source