Results 11 to 20 of about 29,954 (261)

Shadow Detection in Still Road Images Using Chrominance Properties of Shadows and Spectral Power Distribution of the Illumination [PDF]

open access: yesSensors, 2020
A well-known challenge in vision-based driver assistance systems is cast shadows on the road, which makes fundamental tasks such as road and lane detections difficult.
Manuel José Ibarra-Arenado   +2 more
doaj   +2 more sources

A novel single robot image shadow detection method based on convolutional block attention module and unsupervised learning network [PDF]

open access: yesFrontiers in Neurorobotics, 2022
Shadow detection plays a very important role in image processing. Although many algorithms have been proposed in different environments, it is still a challenging task to detect shadows in natural scenes.
Jun Zhang, Junjun Liu
doaj   +2 more sources

Shadow Detection Based on Regions of Light Sources for Object Extraction in Nighttime Video [PDF]

open access: yesSensors, 2017
Intelligent video surveillance systems detect pre-configured surveillance events through background modeling, foreground and object extraction, object tracking, and event detection.
Gil-beom Lee   +4 more
doaj   +2 more sources

Learning Shadow Correspondence for Video Shadow Detection

open access: yes, 2022
Video shadow detection aims to generate consistent shadow predictions among video frames. However, the current approaches suffer from inconsistent shadow predictions across frames, especially when the illumination and background textures change in a video.
Xinpeng Ding   +3 more
openaire   +2 more sources

An Approach for Shadow Detection in Aerial Images Based on Multi-Channel Statistics

open access: yesIEEE Access, 2021
Shadows are likely to cause flaws in color interpretation, loss of image information or deformation of objects; this is a relevant issue owing to the fact that with the development of unmanned aerial vehicles and satellite devices, object detection by ...
Gilberto Alvarado-Robles   +3 more
doaj   +1 more source

ESPFNet: An Edge-Aware Spatial Pyramid Fusion Network for Salient Shadow Detection in Aerial Remote Sensing Images

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Shadows can hinder image interpretation in aerial remote sensing images. The existing shadow detection methods focus on all shadow regions and detect the shadow regions directly, but they ignore the fact that salient shadows have a more significant ...
Shuang Luo   +4 more
doaj   +1 more source

Fine-Context Shadow Detection using Shadow Removal

open access: yes2023 IEEE/CVF Winter Conference on Applications of Computer Vision (WACV), 2023
Current shadow detection methods perform poorly when detecting shadow regions that are small, unclear or have blurry edges. In this work, we attempt to address this problem on two fronts. First, we propose a Fine Context-aware Shadow Detection Network (FCSD-Net), where we constraint the receptive field size and focus on low-level features to learn fine
Jeya Maria Jose Valanarasu   +1 more
openaire   +2 more sources

Moving Target Shadow Analysis and Detection for ViSAR Imagery

open access: yesRemote Sensing, 2021
The video synthetic aperture radar (ViSAR) is a new application in radar techniques. ViSAR provides high- or moderate-resolution SAR images with a faster frame rate, which permits the detection of the dynamic changes in the interested area.
Zhihua He   +5 more
doaj   +1 more source

Shadow detection from images using fuzzy logic and PCPerturNet

open access: yesIET Image Processing, 2021
Shadow detection is a challenging and essential task for interpreting the scene. Regardless of encouraging findings from current Deep Learning (DL) approaches used for shadow detection, the methods are also dealing with inconsistent situations where the ...
Jyotismita Chaki
doaj   +1 more source

Building Shadow Detection on Ghost Images

open access: yesRemote Sensing, 2020
Although many efforts have been made on building shadow detection from aerial images, little research on simultaneous shadows detection on both building roofs and grounds has been presented. Hence, this paper proposes a new method for simultaneous shadow
Guoqing Zhou, Hongjun Sha
doaj   +1 more source

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