Categories and Subject Descriptors C.2.1 : WirelessCommunication E. The results show that the ARG-Wishart classifier can achieve better results than the SVM and the Wishart classifier in terms of overall classification accuracy and Kappa coefficient. For comparison, we use PALSAR(Phased Array Type L-Band Synthetic Aperture Radar) and RADARSAT-2 images as data sources and apply SVM(Support Vector Machine), the Wishart supervised classifier, and the ARG-Wishart classifier to conduct comparative research on two experimental plots, namely, Lishui County in Jiangsu Province and Jiangning District in Nanjing City. Thus, we can finish the classification on the polarimetric SAR image. Acta Geodaetica et Cartographica Sinica (Sep 2016) Visualization and Extraction of Trajectory Stops Based on Kernel-density XIANG Longgang, SHAO Xiaotian Affiliations DOI Journal volume & issue Vol. Acta Geodaetica et Cartographica Sinica (Jun 2016) An Aerial Image Mosaic Method Based on UAV Position and Attitude Information CHENG Zhenggang, ZHANG Li Affiliations DOI Journal volume & issue Vol. 'An Improved Contextual Classification Method of Point Cloud. Then, unknown samples are classified by the Wishart maximum likelihood classification algorithm. HE Elong, WANG Hongping, CHEN Qi, LIU Xiuguo. doi:10.11947/j.AGCS.2022.20220236 Navaratnam, A.M.D., Shrotri, M., Nguyen, V. Published in Acta Geodaetica et Cartographica Sinica ISSN 1001-1595 (Print) Publisher Surveying and Mapping Press Country of publisher China LCC subjects Geography. After this, we can obtain enhanced training samples by which each class center can be calculated. Cehui Xuebao/Acta Geodaetica et Cartographica Sinica, 51 (7), 1629-1639. An improved adaptive region growing algorithm is developed by introducing the OTSU method for the image. A few are presentative and clear sample data are selected manually. At first, the main diagonal elements of the polarimetric coherency matrix are extracted from the image. It integrates the adaptive region growing algorithm and Wishart maximum likelihood classification algorithm for difficulties that arise from selecting training samples, and instability of the final classification accuracy on PolSAR(Polarimetric Synthetic Aperture Radar) image. those documents other than research articles, reviews and conference papers.Abstract : This paper proposes a new ARG-Wishart(Adaptive Region Growing-Wishart) classification algorithm for digital images. Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. journal self-citations removed) received by a journal's published documents during the three previous years.Įxternal citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents. Liang YJ Ren C Yang XF Pang GF Lan L Grey model based on first difference in the application of the satellite clock bias prediction Acta Astrono Sin 2015 56 3 264 277 10.15940/j.cnki.0001-5245.2015.03. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.Įvolution of the number of total citation per document and external citation per document (i.e. Short-term prediction of ionospheric TEC based on ARIMA model. Google Scholar : Zhang X H, Ren X D, Wu F B, et al. Acta Geodaetica et Cartographica Sinica (Nov 2021) Key technologies of multi-agent collaborative high definition map construction CHEN Long, LIU Kunhua, ZHOU Baoding, LI Qingquan Affiliations DOI Journal volume & issue Vol. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. Acta Geodaetica et Cartographica Sinica (in Chinese), 43(2): 118-124. It is the standardised abbreviation to be used for. This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The ISO4 abbreviation of Acta Geodaetica et Cartographica Sinica is Acta Geod. The ISO4 abbreviation of Acta Geographica Sinica is Acta Geogr Sin. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.Įarth and Planetary Sciences (miscellaneous) coren apicella, Kuaihelani meaning, One ten thousandth of three million. The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles.
0 Comments
Leave a Reply. |