The method of change vector analysis in posterior probability space(CVAPS) does not take into consideration the correlation between the bands of remote sensing image, which may result in unreliable change detection. In view of such a situation, the authors introduced multivariate change detection(MAD)method and, in combination with CVAPS, proposed an improved method for automatic updating of land use / cover change(LUCC) classification. The method firstly introduces MAD to reduce bands-correlation for improving the reliability of train-samples and accordingly improving LUCC updating maps, and then included an iterative Markov random field(IR-MRF)model to fully employ the contextual information in post-processing to reduce the noise of “salt-and-pepper”. Choosing Changting County of Fujian Province as the study area, the authors used Landsat5 TM and Landsat8 OLI data acquired in 2003 and 2013 respectively, and took OLI as the base image to update the classification map in 2003. The experimental results show that the proposed method significantly outperforms the CVAPS in that its overall accuracy could reach 80% with the improvement rate being about 3%.
Xinran ZHU,Bo WU,Qiang ZHANG. An improved CVAPS method for automatic updating of LUCC classification[J]. Remote Sensing for Land & Resources,
2018, 30(2): 29-37.
Sun X X, Zhang J X, Yan Q , et al. A summary on current techniques and prospects of remote sensing change detection[J]. Remote Sensing Information, 2011,26(1):119-123.
Chen J, Chen X H, Cui X H , et al. Change vector analysis in posterior probability space:A new method for land cover change detection[J]. IEEE Geoscience and Remote Sensing Letters, 2011,8(2):317-321.
doi: 10.1109/LGRS.2010.2068537
url: http://ieeexplore.ieee.org/document/5597922/
[11]
张路 . 基于多元统计分析的遥感影像变化检测方法研究[D]. 武汉:武汉大学, 2004.
[11]
Zhang L . Change Detection in Remotely Sensed Imagery Using Multivariate Statistical Analysis[D]. Wuhan: Wuhan University, 2004.
Sheng H, Liao M S, Zhang L . Determination of threshold in change detection based on canonical correlation analysis[J]. Journal of Remote Sensing, 2004,8(5):451-457.
Bruzzone L, Prieto D F . Automatic analysis of the difference image for unsupervised change detection[J]. IEEE Transactions on Geoscience and Remote Sensing, 2000,38(3):1171-1182.
doi: 10.1109/36.843009
url: http://ieeexplore.ieee.org/document/843009/
Zhao P . Land use dynamic remote sensing monitoring at the initial stage of exploitation of the Xinjie Taigemiao mining area[J]. Remote Sensing for Land and Resources, 2015,27(4):144-149.doi: 10.6046/gtzyyg.2015.04.22.
Guo Q Z, Ning X P, Wang Z H , et al. Impact analysis of landform for land use dynamic change of the partly mountainous area:A case study of Jixian County in Tianjin City[J]. Remote Sensing for Land and Resources, 2015,27(1):153-159.doi: 10.6046/gtzyyg.2015.01.24.
Li S, Ni W P, Yan W D , et al. Change detection of multi-spectral images based on iterative estimation with weight selection and unsupervised classification[J]. Remote Sensing for Land and Resources, 2014,26(4):34-40.doi: 10.6046/gtzyyg.2014.04.06.
Du P J, Chen Y, Tan K . The remote sensing monitoring of land use/cover change and land surface temperature responses over the coastal wetland in Jiangsu[J]. Remote Sensing for Land and Resources, 2014,26(2):112-120.doi: 10.6046/gtzyyg.2014.02.19.
Sun L G, Liu J F, Xu Q H . Remote Sensing based temporal and spatial analysis of vegetation cover changes in Bashang Area of Hebei Province[J]. Remote Sensing for Land and Resources, 2014,26(1):167-172.doi: 10.6046/gtzyyg.2014.01.28.