TY - JOUR
T1 - Land-Use/Land-Cover Change Detection Using Improved Change-Vector Analysis
AU - Chen, Jing
AU - Gong, Peng
AU - He, Chunyang
AU - Pu, Ruiliang
AU - Shi, Peijun
PY - 2003/4/1
Y1 - 2003/4/1
N2 - Change-vector analysis (CVA) is a valuable technique for land-use/land-cover change detection. However, how to reasonably determine thresholds of change magnitude and change direction is a bottleneck to its proper application. In this paper, a new method is proposed to improve CVA. The method (the improved CVA) consists of two stages, Double-Window Flexible Pace Search (DFPS), which aims at determining the threshold of change magnitude, and direction cosines of change vectors for determining change direction (category) that combines single-date image classification with a minimum-distance categorizing technique. When the improved CVA was applied to the detection of the land-use/land-cover changes in the Haidian District, Beijing, China, Kappa coefficients of “change/no-change” detection and “from-to” types of change detection were 0.87 and greater than 0.7, respectively, for all kinds of land-use changes. The experimental results indicate that the improved CVA has good potential in land-use/land-cover change detection.
AB - Change-vector analysis (CVA) is a valuable technique for land-use/land-cover change detection. However, how to reasonably determine thresholds of change magnitude and change direction is a bottleneck to its proper application. In this paper, a new method is proposed to improve CVA. The method (the improved CVA) consists of two stages, Double-Window Flexible Pace Search (DFPS), which aims at determining the threshold of change magnitude, and direction cosines of change vectors for determining change direction (category) that combines single-date image classification with a minimum-distance categorizing technique. When the improved CVA was applied to the detection of the land-use/land-cover changes in the Haidian District, Beijing, China, Kappa coefficients of “change/no-change” detection and “from-to” types of change detection were 0.87 and greater than 0.7, respectively, for all kinds of land-use changes. The experimental results indicate that the improved CVA has good potential in land-use/land-cover change detection.
UR - https://digitalcommons.usf.edu/geo_facpub/397
UR - https://doi.org/10.14358/PERS.69.4.369
U2 - 10.14358/PERS.69.4.369
DO - 10.14358/PERS.69.4.369
M3 - Article
VL - 69
JO - Photogrammetric Engineering Remote Sensing
JF - Photogrammetric Engineering Remote Sensing
ER -