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You searched for: Journal Remote sensing letters Remove constraint Journal: Remote sensing letters Publication Year 2016 Remove constraint Publication Year: 2016 Source 2016 v.7 no.12 Remove constraint Source: 2016 v.7 no.12
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1. A fast and robust method of calculating RFM parameters for satellite imagery

Author:
Wu, Yingdan; Ming, Yang
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1112-1120
ISSN:
2150-7058
Subject:
algorithms; equations; models; remote sensing; satellites
Abstract:
... Since the normal matrix is often ill-conditioned when solving Rational Function Model (RFM) for the satellite remote sensing imagery, combining with matrix orthogonal decomposition, Levenberg–Marquardt algorithm and Compute Unified Device Architecture high-performance computing technique, a fast and robust method directly based on the error equation coefficient matrix is proposed. The method is an ...
DOI:
10.1080/2150704X.2016.1219459

2. An adaptive sidelobe reduction method for the aperture synthesis radiometer

Author:
Peng, Xiaohui; Hu, Fei; Wu, Liang; Li, Jun; Zhu, Dong
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1229-1238
ISSN:
2150-7058
Subject:
energy; image analysis; mathematics and statistics; models; radiometers; remote sensing
Abstract:
... For an aperture synthesis radiometer, sidelobe artefact is an important problem in image reconstruction from finite visibility samples, especially, when there are strong point sources in the observed scene. The conventional Fourier inversion method with fixed window reduces sidelobe artefacts only at the expense of worsened mainlobe resolution. An adaptive beamforming method is developed in this l ...
DOI:
10.1080/2150704X.2016.1227880

3. Assessment of boreal forest height from WorldView-2 satellite stereo images

Author:
Persson, Henrik J.; Perko, Roland
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1150-1159
ISSN:
2150-7058
Subject:
boreal forests; canopy; models; regression analysis; remote sensing; satellites; Sweden
Abstract:
... WorldView-2 (WV2) satellite stereo images were used to derive a digital surface model, which together with a high-resolution digital terrain model from airborne laser scanning (ALS) were used to estimate forest height. Lorey’s mean height (H L) could be estimated with a root mean square error of 1.5 m (8.3%) and 1.4 m (10.4%), using linear regression, at the two Swedish test sites Remningstorp (La ...
DOI:
10.1080/2150704X.2016.1219424

4. Bilateral linear SURE-based SAR interferogram filter

Author:
Zhang, T.; Lü, X. L.; Qian, J.; Hong, J.; Li, Y.
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1190-1198
ISSN:
2150-7058
Subject:
algorithms; digital images; geometry; interferometry; remote sensing; risk estimate; synthetic aperture radar; texture
Abstract:
... This article proposes a new filter for interferometric synthetic aperture radar (InSAR) phase denoising. Traditional phase filters generally face two major challenges: to preserve texture details while reducing noise and to perform well in less time. The local linear model-based guided filter and Stein’s unbiased risk estimate (SURE)-based filter, in contrast, have a high quality of edge-preservin ...
DOI:
10.1080/2150704X.2016.1225169

5. Estimation of above-ground biomass using MODIS satellite imagery of multiple land-cover types in China

Author:
Yuan, Xiuliang; Li, Longhui; Tian, Xin; Luo, Geping; Chen, Xi
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1141-1149
ISSN:
2150-7058
Subject:
aboveground biomass; carbon cycle; ecosystems; image analysis; land cover; mixed forests; moderate resolution imaging spectroradiometer; remote sensing; uncertainty; vegetation index; China
Abstract:
... Estimations of above-ground biomass (AGB) at various spatial and temporal scales remain a large uncertainty when quantifying the global carbon cycle. In this work, we assessed the ability of the Enhanced Vegetation Index (EVI), obtained from the Moderate-Resolution Imaging Spectroradiometer, for estimating AGB across multiple land cover types in China. Our results indicate that, with the exception ...
DOI:
10.1080/2150704X.2016.1219458

6. Fast and adaptive region merging based on perceptual hashing via multi-thresholding for SAR image segmentation

Author:
Ji, Jian; Lü, Xiao-jia; Han, Lin-yi; Zhang, Chun-hui
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1199-1208
ISSN:
2150-7058
Subject:
algorithms; remote sensing; synthetic aperture radar; texture
Abstract:
... Due to the serious speckle noise in synthetic aperture radar (SAR) image, segmentation of SAR images is still a challenging problem. In this paper, a novel region merging method based on perceptual hashing is proposed for SAR image segmentation. In the proposed method, perceptual hash algorithm (PHA) is utilized to calculate the degree of similarity between different regions during region merging ...
DOI:
10.1080/2150704X.2016.1222097

7. Locally adaptive super-resolution waterline mapping with MODIS imagery

Author:
Li, Wenbo; Zhang, Xiuhua; Ling, Feng; Zheng, Dongbo
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1121-1130
ISSN:
2150-7058
Subject:
image analysis; inland waters; models; moderate resolution imaging spectroradiometer; reflectance; remote sensing; satellites; surface water; China; Wisconsin
Abstract:
... Mapping inland water bodies is important for relevant research fields and water resource management. Satellite remote sensing is a routine approach, and various remotely sensed images have been applied to map waterlines. MODerate-resolution Imaging Spectroradiometer (MODIS) images have advantages for waterline mapping in large areas, thanks to its wide scan width and high frequent revisiting perio ...
DOI:
10.1080/2150704X.2016.1219460

8. Mapping rice extent and cropping scheme in the Mekong Delta using Sentinel-1A data

Author:
Nguyen, Duy Ba; Gruber, Alexander; Wagner, Wolfgang
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1209-1218
ISSN:
2150-7058
Subject:
Oryza sativa; data collection; decision support systems; growing season; heading; land use; phenology; remote sensing; rice; river deltas; spring; synthetic aperture radar; temporal variation; time series analysis; vegetation; Mekong River; Vietnam
Abstract:
... Synthetic aperture radar (SAR)-based multi-temporal backscatter analysis is a common approach that has been widely used for rice mapping. Co-polarized C-band microwave backscatter (HH or VV) and the co-polarization ratio (HH/VV) are the most commonly used data sets for rice mapping due to their high data availability while the utilization of cross-polarized backscatter (HV or VH) has received less ...
DOI:
10.1080/2150704X.2016.1225172

9. Marginal discriminant analysis using support vectors for dimensionality reduction of hyperspectral data

Author:
Kianisarkaleh, Azadeh; Ghassemian, Hassan
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1160-1169
ISSN:
2150-7058
Subject:
data collection; discriminant analysis; hyperspectral imagery; remote sensing
Abstract:
... Feature extraction (FE) is an efficient pre-processing step in hyperspectral image (HSI) classification. This article proposes a novel supervised FE method based on graph embedding framework (GEF). This method, which is called marginal discriminant analysis using support vectors (MDSV), can be used as a linear dimensionality reduction approach. The proposed method constructs inner and support grap ...
DOI:
10.1080/2150704X.2016.1222099

10. Observation of diurnal variations in mesoscale eddy sea-surface currents using GOCI data

Author:
Park, Ji-Eun; Park, Kyung-Ae; Ullman, David S.; Cornillon, Peter C.; Park, Young-Je
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1131-1140
ISSN:
2150-7058
Subject:
chlorophyll; color; diurnal variation; remote sensing; wind speed; Sea of Japan
Abstract:
... The surface current field of a mesoscale eddy in the East Sea (Sea of Japan) was derived from consecutive Geostationary Ocean Color Imager chlorophyll- a (chl- a) concentration images using the normalized maximum cross-correlation method. The estimated current field of the eddy exhibited anticyclonic structure demonstrated by the objective dynamic thresholds of correlation coefficients. The eddy p ...
DOI:
10.1080/2150704X.2016.1219423

11. Pan-sharpening with structural consistency and ℓ1/2 gradient prior

Author:
Zeng, Delu; Hu, Yuwen; Huang, Yue; Xu, Zhiliang; Ding, Xinghao
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1170-1179
ISSN:
2150-7058
Subject:
algorithms; multipliers; multispectral imagery; remote sensing
Abstract:
... In this letter, a variational method is proposed for panchromatic (Pan)-sharpening by fusing a low-resolution multispectral image with a high-resolution Pan image to generate a high-resolution multispectral image. Most methods focus on spatial intensity preservation while the proposed method tends to preserve the consistency of the spatial structure information. In addition, an metric is used to e ...
DOI:
10.1080/2150704X.2016.1222098

12. The exploitation of Sentinel-1 images for vessel size estimation

Author:
Stasolla, Mattia; Greidanus, Harm
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1219-1228
ISSN:
2150-7058
Subject:
algorithms; remote sensing; ships; synthetic aperture radar
Abstract:
... In this article, a novel technique for fully automatic vessel size estimation using medium-to-high-resolution synthetic aperture radar (SAR) images is presented. Based on mathematical morphology , it aims at better delineating the vessel outline in the cluttered SAR image, thereby enabling the extraction of its actual dimensions. The technique has been tested on a set of 127 ships representing a r ...
DOI:
10.1080/2150704X.2016.1226522

13. Use of a time-staggered FMCW signal for portable high-frequency surface wave radar

Author:
Tan, Jian; Wen, Biyang; Tian, Yingwei; Tian, Mao
Source:
Remote sensing letters 2016 v.7 no.12 pp. 1180-1189
ISSN:
2150-7058
Subject:
energy; radar; remote sensing
Abstract:
... Herein is proposed a low-power-density signal based on time-staggered frequency modulated continuous waveform (TS-FMCW) for portable high-frequency (HF) radar. According to the principle of pulse compression that the signal-to-noise ratio (SNR) is related to the total energy, the proposed signals can carry more energy to get higher SNR within same level power density in time–frequency plane. The r ...
DOI:
10.1080/2150704X.2016.1225171