Discussion on the Utilization of Forestry Resource Data to Update Basic Geographic Information Data

2012 ◽  
Vol 472-475 ◽  
pp. 2988-2992
Author(s):  
Li Fang Lai ◽  
Yu Fen Zhang
Keyword(s):  
Survey Data ◽  
Rapid Development ◽  
Geographic Information ◽  
Land Survey ◽  
Novel Method ◽  
Resource Data

Along with the rapid development of economy, strong demand has been put on the application of basic geographic information data which needs timely updating. It has become a subject to be further investigated to make full use of other data (such as forestry resource data, land survey data, etc.) to effectively add new data when the basic geographic information data is updated and ensure the timeliness of basic geographic information data. This paper gives an instance to describe and discuss a novel method, whose purpose is to quickly update basic geographic information data by forestry resource data on MicroStation V8 platform.

scholarly journals Application and analysis of image modeling based on UAV

2020 ◽  
Vol 206 ◽  
pp. 01026
Author(s):  
Shuheng Wang ◽  
Xuefeng Niu ◽  
Chunyu Zhu ◽  
Xiang Wu ◽  
Shi Liu
Keyword(s):  
Large Scale ◽  
Rapid Development ◽  
Line Drawing ◽  
Geographic Information ◽  
Good Effect ◽  
Image Modeling ◽  
Rapid Acquisition ◽  
Ground Control Points ◽  
Information Products ◽  
Economic Construction

As one of the important geographic information products, orthophotos play an extremely important role in the field of geographic information. With the rapid development of China’s economic construction and the continuous improvement of photogrammetry technology, traditional orthophoto has been replaced by real orthophoto to meet the requirements of large-scale accurate mapping. This article discusses the method of generating real shot images, uses drone images, and uses Zhanwei New Village in Wuhan as the survey area to lay out the ground control points. Based on Pix4D modeling, the air and three encryptions are completed and based on high-precision DSM Quickly generate real radiography products. The research in this paper shows that the corrected real image can eliminate the phenomenon of blocking the wall and the problem of occlusion. It has a good effect and can be used in the field of line drawing maps. It provides a simple and quick solution for the rapid acquisition of orthophotos in the field of photogrammetry.

A deep learning training method of water identification based on the Third National Land Survey data

2021 ◽  
Author(s):  
Zhida Chen ◽  
Chuan Lin ◽  
ChangLei Cao ◽  
Guang Gao ◽  
Liangzhong Ying
Keyword(s):  
Deep Learning ◽  
Survey Data ◽  
Training Method ◽  
The Third ◽  
Land Survey

scholarly journals Estimating historical forest density from land‐survey data: a response to Baker and Williams (2018)

2019 ◽  
Vol 29 (8) ◽  
Author(s):  
Carrie R. Levine ◽  
Charles V. Cogbill ◽  
Brandon M. Collins ◽  
Andrew J. Larson ◽  
James A. Lutz ◽  
...  
Keyword(s):  
Survey Data ◽  
Forest Density ◽  
Land Survey ◽  
Historical Forest

Microblog Sentiment Analysis Using User Similarity and Interaction-Based Social Relations

2020 ◽  
Vol 17 (3) ◽  
pp. 39-55
Author(s):  
Chuanmin Mi ◽  
Xiaoyan Ruan ◽  
Lin Xiao
Keyword(s):  
Sentiment Analysis ◽  
Social Relations ◽  
Rapid Development ◽  
Support Vector ◽  
Sina Weibo ◽  
User Similarity ◽  
Proposed Model ◽  
Novel Method ◽  
Polarity Classification ◽  
Similarity Information

With the rapid development of information technology, microblog sentiment analysis (MSA) has become a popular research topic extensively examined in the literature. Microblogging messages are usually short, unstructured, contain less information, creating a significant challenge for the application of traditional content-based methods. In this study, the authors propose a novel method, MSA-USSR, in which user similarity information and interaction-based social relations information are combined to build sentiment relationships between microblogging data. They make use of these microblog–microblog sentiment relations to train the sentiment polarity classification classifier. Two Sina-Weibo datasets were utilized to verify the proposed model. The experimental results show that the proposed method has a better sentiment classification accuracy and F1-score than the content-based support vector machine (SVM) method and the state-of-the-art supervised model known as SANT.

A novel method of text detection in radiographic images

2019 ◽  
Vol 61 (10) ◽  
pp. 591-596 ◽  
Author(s):  
Yasheng Chang ◽  
Jianmin Gao ◽  
Hongquan Jiang
Keyword(s):  
Nuclear Power ◽  
Rapid Development ◽  
Text Detection ◽  
Radiographic Images ◽  
Material Resources ◽  
Radiographic Testing ◽  
Significant Efficacy ◽  
Important Means ◽  
Novel Method ◽  
Frequency Domain Filtering

With the rapid development of industries such as nuclear power and shipbuilding, radiographic testing (RT) is widely used in these fields as an important means of weld inspection. It also produces a large number of radiographic films, which consume a great deal of manpower and material resources. It is therefore beneficial for the radiographic film to be digitised for storage and archiving. Text detection in RT weld images is an important prerequisite for the archiving of digitised films. This paper proposes a novel text detection method that employs mask convolution and frequency-domain filtering, which can detect text at different positions, with different fonts and of different sizes in RT weld images. The method is evaluated using 366 different images and shows significant efficacy for text detection in RT weld images, with the precision value reaching 96%. The method used in this paper is also compared with other methods that are commonly used in other fields and the results show that the proposed method gives improved results compared to state-of-the-art methods.

Development and Application of Electronic Chart System in Ocean Navigation

2014 ◽  
Vol 875-877 ◽  
pp. 1972-1975
Author(s):  
Qing Liu ◽  
Yuan Liang Zhang
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Future Development ◽  
Rapid Development ◽  
Development Trend ◽  
Geographic Information ◽  
System Technique ◽  
Geographic Information System Technique ◽  
Electronic Chart ◽  
Ocean Environment

With rapid development of the geographic information system technique, the electronic chart has come into being and is more and more mature. The electronic chart can provide the accurate and detailed information about the ocean environment, including the depth of water, situation of the seabed, distance from the shore, position, orientation and velocity of the ship, and other useful information. This paper first gives some introduction about the electronic chart. After analyzing the characteristics of the electronic chart, the application of the electronic chart in ocean navigation is provided. Finally the existing problem of the electronic chart and its future development trend are also discussed.

COMPUTATION OF VESSELNESS IN CTA IMAGES FOR FAST AND INTERACTIVE VESSEL SEGMENTATION

2007 ◽  
Vol 07 (01) ◽  
pp. 159-176 ◽  
Author(s):  
WENLI CAI ◽  
GORDON J. HARRIS ◽  
HIROYUKI YOSHIDA
Keyword(s):  
Rapid Development ◽  
Computed Tomographic Angiography ◽  
Vessel Segmentation ◽  
Interactive Segmentation ◽  
Fast Marching ◽  
Computed Tomographic ◽  
Novel Method ◽  
Vascular Structures ◽  
Speed Function ◽  
Tomographic Angiography

With the rapid development of multi-detector computed tomography (MDCT) that results in improving the temporal and spatial resolution of patient data, clinical use of computed tomographic angiography (CTA) is increasing. Vessel segmentation can be challenging in CTA, but is needed for isolation of vascular structures. In this paper, a novel method for computation of vesselness in CTA images is presented, including a CTA transfer function prior to the vesselness computation for reducing the artifacts caused by the false-positive responses of a Hessian-based line filter, as well as a hierarchical structure, called MIP-volume pyramid, for accelerating the computation of vesselness. Using the computed vesselness, we present an interactive segmentation method for each individual vessel by applying a vesselness speed function in a fast marching level set method. Our new method was shown to provide an effective and efficient way that allows vesselness to be applied to large CTA images. This method has been implemented successfully in CTA vessel segmentation and evaluation.

scholarly journals Rancang Bangun Sistem Informasi Geografis Potensi Sumber Daya Alam Di Kabupaten Talaud Berbasis Web

2018 ◽  
Vol 13 (1) ◽  
Author(s):  
Arief A. Sasoeng ◽  
Steven R. Sentinuwo ◽  
Yaulie D.Y. Rindengan
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Natural Resources ◽  
Geographic Information ◽  
Geographical Information ◽  
Web Based ◽  
The North ◽  
North Sulawesi ◽  
System Information ◽  
Resource Data

Abstract — Sistem Informasi Geografis (SIG) atau Geographic Information System (GIS) adalah sebuah sistem yang didesain untuk menangkap, menyimpan, memanipulasi, menganalisa, mengatur dan menampilkan seluruh jenis data geografis, misalnya informasi-informasi yang berkaitan dengan sumber daya alam, maka informasi geografis akan berisi mengenai lokasi suatu daerah dan informasi mengenai sumber daya alam yang terkandung pada daerah tersebut. Kabupaten Kepulauan Talaud merupakan salah satu daerah terpencil yang berada di Provinsi Sulawesi Utara, Indonesia yang berbatasan dengan daerah Davao del Sur, Filipina disebelah utara, Ibu Kota Melonguane. Dengan merancang dan membagun sistem informasi geografis mengenai potensi sumber daya alam di Kabupaten Kepulauan Talaud berbasis web, dapat memberikan informasi data-data potensi sumber daya alam di Kabupaten Kepulauan Talaud. Dengan menggunakan metode Waterfall dalam membuat suatu sistem informasi menggunakan bahasa pemprograman PHP, HTML dan MYSQL. Kata kunci — GIS, Potensi, SDA, SIG, Talaud, Web. Abstract — System Information Geographic (SIG) or Geographic Information System (GIS) is a system designed to capture, store, manipulate, analyze, organize and display all types of geographic data, such as information relating to natural resources, geographical information will contain the location of an area and information about the natural resources it contained in the area. Talaud islands Districts is one of the remote areas located in North Sulawesi Province, Indonesia bordering the Davao del Sur, Philippines region to the north, of capital Melonguane. By designing and Building geographic information system on the potential of natural resources in the web based talaud island district, can provide information of potential natural resource data in Talaud Islands District. By using Waterfall method in making an information system using programming language PHP, HTML and MYSQL. Keywords — GIS, Potency, SDA, SIG, Talaud, Web.

scholarly journals Planning the Madiun Fire Outer Ring Railroad Using Autocad Civil 3D

2017 ◽  
Vol 1 (2) ◽  
pp. 81-87
Author(s):  
Adya Aghastya ◽  
Wahyu Tamtomo Adi
Keyword(s):  
Survey Data ◽  
Efficient Solution ◽  
Lower Cost ◽  
Civil Engineering ◽  
Outer Ring ◽  
Master Plan ◽  
Track Width ◽  
Land Survey ◽  
3D Software

Indonesian Railroad Academy Madiun is one of the education UPTs under the Ministry of Transportation which houses the railway sector. To support education in the Madiun API and in accordance with the 2017 Revised Madiun API Master Plan, it is necessary to have additional lines, namely the Madiun API outer ring. Autocad Civil 3D software is very useful in providing an innovative, effective and efficient solution in the process of planning civil engineering specifically for the manufacture of railroad lines so that it is easier, faster and lower cost with the methodology of working on inputting land survey data and carrying out the next alignment design automatically cutting pieces of data transverse, longitudinal, gallian volume and auto fill have been obtained. The planning data that is the speed of the plan used is 30 km / h with a track width of 1,067m. design length of 1234,187m with a slope of 0,0009 or 0.09% below the maximum standard of 10 per ‰, cumulative fill 15584.68 m³ and comulative cut 5719.08 m³.

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