Results 41 to 50 of about 33,305 (299)
ORTHOPHOTO SHADOW DETECTION METHOD UNDER ARTIFICIAL SHADOW [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 Shadows are ubiquitous in high-resolution images, especially in urban regions where there are more serious shadow occlusions. In order to improve the detection effect of shadows, this paper analyzes the characteristics and properties of shadows in ...
W. X. Zhang +6 more
doaj +1 more source
IET Computer Vision, 2018 Shadow features such as colour ratio, texture, and chromaticity have proved to be quite effective in shadow detection. Many shadow detection methods have been proposed on the basis of different features.
Liangqiong Qu +4 more
doaj +1 more source
Detecting moving shadows: algorithms and evaluation [PDF]
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2003 Moving shadows need careful consideration in the development of robust dynamic scene analysis systems. Moving shadow detection is critical for accurate object detection in video streams since shadow points are often misclassified as object points, causing errors in segmentation and tracking.
Andrea Prati 0001 +3 more
openaire +6 more sources
Shadow detection with multi-feature fusion and MMSE optimization
Dianzi Jishu Yingyong, 2018 In order to reduce the interference of shadow to detection results of moving targets, a shadow detection method is proposed, which can be made as the post-processing step of motion detection methods.
Zhang Han, Yan Huaiping, Zhang Zhan
doaj +1 more source
ANISOTROPIC SCATTERING SHADOW COMPENSATION METHOD FOR REMOTE SENSING IMAGE WITH CONSIDERATION OF TERRAIN [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 With the rapid development of sensor networks and earth observation technology, a large quantity of high resolution remote sensing data is available. However, the influence of shadow has become increasingly greater due to the higher resolution shows more
Q. Wang, L. Yan
doaj +1 more source
Illumination invariance and shadow compensation via spectro-polarimetry technique [PDF]
, 2013 A major problem for obtaining target reflectance via hyperspectral imaging systems is the presence of illumination and shadow effects. These factors are common artefacts, especially when dealing with a hyperspectral imaging system that has sensors in the
Jackman, James +6 more
core +1 more source
A Coarse‐To‐Fine Approach to Detect Shadows in the Chang’E−4 VNIS Hyperspectral Images
Earth and Space Science, 2022 The low value of shadow pixels in the images sensed by the Visible and Near‐infrared Imaging Spectrometers (VNIS) aboard Chang’E−4 Yutu‐2 rover leads to an unrealistic representation of lunar surface reflectance.
Chao Wang +7 more
doaj +1 more source
DARCLOS: a cloud shadow detection algorithm for TROPOMI [PDF]
Atmospheric Measurement Techniques, 2022 Cloud shadows are observed by the TROPOMI satellite instrument as a result of its high spatial resolution compared to its predecessor instruments. These shadows contaminate TROPOMI's air quality measurements, because shadows are generally not taken into ...
V. J. H. Trees +7 more
doaj +1 more source
Foreground segmentation-based human detection with shadow removal [PDF]
, 2010 Recent research in video surveillance system has shown an increasing focus on creating reliable systems utilizing non-computationally expensive technique for observing humans' appearance, movements and activities, thus providing analytical information ...
Khalifa, Othman Omran +7 more
core +1 more source
When SAM Meets Shadow Detection
CoRR, 2023 As a promptable generic object segmentation model, segment anything model (SAM) has recently attracted significant attention, and also demonstrates its powerful performance. Nevertheless, it still meets its Waterloo when encountering several tasks, e.g., medical image segmentation, camouflaged object detection, etc.
Leiping Jie, Hui Zhang 0062
openaire +2 more sources