Results 21 to 30 of about 1,823,626 (291)

Multiscale texture classification and retrieval based on magnitude and phase features of complex wavelet subbands [PDF]

open access: yes, 2011
This paper proposes a multiscale texture classifier which uses features extracted from both magnitude and phase responses of subbands at different resolutions of the dual-tree complex wavelet transform decomposition of a texture image.
Tjahjadi, Tardi   +3 more
core   +1 more source

Influence of Structure and Texture Feature on Retrieval of Ramie Leaf Area Index

open access: yesAgronomy, 2023
Leaf area index (LAI), as one of the important crop field phenotypes, plays a crucial role in evaluating crop growth and yield. The remote sensing method for crop parameters monitoring makes it possible to obtain crop LAI in a large area, efficiently and
Hongyu Fu   +5 more
doaj   +1 more source

Texture classification with thousands of features [PDF]

open access: yesProcedings of the British Machine Vision Conference 2002, 2002
The Trace transform is a generalisation of the Radon transform that allows one to construct image features that do not necessarily have meaning in terms of human perception, but they measure different image characteristics. The ability of producing thousands of features from an image allows one to be selective as to which are appropriate for a ...
Alexander Kadyrov   +2 more
openaire   +2 more sources

Remote estimation of rice LAI based on Fourier spectrum texture from UAV image

open access: yesPlant Methods, 2019
Background The accurate estimation of rice LAI is particularly important to monitor rice growth status. Remote sensing, as a non-destructive measurement technology, has been proved to be useful for estimating vegetation growth parameters, especially at ...
Bo Duan   +6 more
doaj   +1 more source

An improved point feature‐based sparse stereo vision

open access: yesIET Image Processing, 2022
Since the limitation on the onboard equipment, the sparse stereo vision is becoming a suitable choice for the deployment of micro air vehicles (MAV) and small robots.
Changhao Chen   +3 more
doaj   +1 more source

Estimating potassium in potato plants based on multispectral images acquired from unmanned aerial vehicles

open access: yesFrontiers in Plant Science, 2023
Plant potassium content (PKC) is a crucial indicator of crop potassium nutrient status and is vital in making informed fertilization decisions in the field.
YanPeng Ma   +9 more
doaj   +1 more source

A Comparative Study of Two State-of-the-Art Feature Selection Algorithms for Texture-Based Pixel-Labeling Task of Ancient Documents

open access: yesJournal of Imaging, 2018
Recently, texture features have been widely used for historical document image analysis. However, few studies have focused exclusively on feature selection algorithms for historical document image analysis.
Maroua Mehri   +5 more
doaj   +1 more source

A TRANSFORMATION METHOD FOR TEXTURE FEATURE DESCRIPTION UNDER DIFFERENT IMAGINE CONDITIONS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
For high spatial resolution Remote Sensing images, it is very important to investigate the transformational methods between background and target characteristics.
Z. Guan, J. Yu, T. Feng, A. Li
doaj   +1 more source

A Fully Unsupervised Texture Segmentation Algorithm

open access: yes, 2003
This paper presents a fully unsupervised texture segmentation algorithm by using a modified discrete wavelet frames decomposition and a mean shift algorithm.
Fauzi, Mohammad F. A.   +5 more
core   +2 more sources

Identification of cashmere and wool based on LBP and GLCM texture feature selection

open access: yesJournal of Engineered Fibers and Fabrics, 2023
There are invalid and redundant features in the texture feature extraction method of cashmere and wool fibers, which leads to the low recognition accuracy.
Yaolin Zhu   +4 more
doaj   +1 more source

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