Results 11 to 20 of about 429,650 (191)

Probabilistic facial feature extraction using joint distribution of location and texture information [PDF]

open access: yes, 2009
In this work, we propose a method which can extract critical points on a face using both location and texture information. This new approach can automatically learn feature information from training data.
Erdogan, Hakan   +5 more
core   +3 more sources

Texture feature extraction of coal-rock image based on variogram and local variance image

open access: yesGong-kuang zidonghua, 2018
In view of problems of low classification accuracy and algorithmic running efficiency and poor robust property of rotation texture recognition existed in local binary patterns for texture feature extraction of coal-rock, a texture feature extraction ...
HUANG Lei, GUO Chaoya
doaj   +1 more source

Texture Synthesis based on Feature Description

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
Patch-based texture synthesis techniques from a small sample texture generate a new texture image efficiently, but one significant problem is that these existing texture synthesis algorithms suffer from structure mismatching across patch boundaries due ...
Yan GUI   +4 more
doaj   +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

Background suppressing Gabor energy filtering [PDF]

open access: yes, 2015
In the field of facial emotion recognition, early research advanced with the use of Gabor filters. However, these filters lack generalization and result in undesirably large feature vector size.
Bhanu, B, Cruz, AC, Thakoor, NS
core   +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

Rotationally invariant texture features using the dual-tree complex wavelet transform [PDF]

open access: yes, 2000
New rotationally invariant texture feature extraction methods are introduced that utilise the dual-tree complex wavelet transform (DT-CWT). The complex wavelet transform is a new technique that uses a dual tree of wavelet filters to obtain the real and ...
Bull, David   +2 more
core   +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

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

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

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