Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
Journal Basic Information
Journal DOI :
Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography
Editor in Chief :
Volume & Issues
Volume 4, Issue 2 - Dec 1986
Volume 4, Issue 1 - Jun 1986
Selecting the target year
Statistical Analysis of Marathon Course Measurements
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 4, issue 2, 1986, Pages 1~9
The marathon course on road surfaces varies frequently in alignment horizontally and /or vertically. This fact compelled use to use a calibrated bicycle method for the course measurement, and to be required statistical approaches for data processing. This paper deals with the computation of the Seoul Olympic Marathon course lengths measured on May 18, 1986. The concept of safety factor against short course is analyzed for certification, and statistical methods are presented to compute an appropriate safety factor. The results of computation show that the best (lowest) actual measurement provides about 99.95% confidence that the combined lengths of all intervals will not be found short upon an equally accurate remeasurement.
A Study on the Correlation beween Visual Excess and Height Measuring Precision
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 4, issue 2, 1986, Pages 10~26
In a stereoscopic measurements on the aerial photogrammetric works, it is in general understood that the larger and the larger is a vertical scale exaggeration, the better and the better is height measuring precision. Despite the success with which a stereoscopic measurement has been applied to contour mapping as well as spot height measurement, no generally accepted theory for visual excess has yet been developed. This experiments aim at arrangement of a correlation between visual excess and height measuring precision. The stereoscopic measurements with parallax bar in the mirror stereoscope are carried out on the test model of which consists normal angle, wide angle and super wide angle respectively. With the result of this experiments, it is conclued that height measuring precision is proportional to the magnitude of visual excess.
A Study on the Comparison of LANDSAT-5 TM and MSS Data -laying stress on the landuse mapping of Incheon area-
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 4, issue 2, 1986, Pages 27~41
In this study, practical use of TM (Thematic Mapper) data was evaluated by comparison of LANDSAT- 5 TM and MSS (Multispectral Scanner) data. The comparison of TM and MSS data was achieved by analyzing the result of landuse mapping of Incheon area, and in addition, the comparison of accuracy according to image enhancement method was made. From the results of this study, we found that TM data was more accurate by about 20% than MSS data in landuse mapping, and that smoothing was effective in image enhancement processing of TM data.
A Review of Error Detection During the Procedure of Stereo- restitution on the National Topographic Mapping in Korea
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 4, issue 2, 1986, Pages 43~58
In a mapping, stereo-restitution of an aerial photogrammetric process, of which is a major factor for map-base preparation dominates the accuracy and the reliability of a topographical map. The majority of a map-base preparation has nowadays been carried out by an analogue method ie, by the stereo-plotter. In consequence, it is evident that the skilled, the level of technique and personal attitude of operator have influence upon observational error which relates the accuracy and the quality of a map. This research aims at detection and analysis of operator's carrier and types of stereoplotter. The test is also examined that the level of details and features of terrain would have influence on the accuracy of map. With the results. it is also considered that the field check has impact on map accuracy ; whether the field check prior to restitution or after restitution.
Processing and Analysis of LANDSAT MSS Data for Extraction of Coastal Flow Patterns - around Incheon Bay -
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 4, issue 2, 1986, Pages 59~75
The purpose of this study is to determine the most effective image analysis technique for extraction of coastal flow patterns from LANDSAT MSS data. Choosing the coastal area of Incheon, LANDSAT MSS data of oceanic area, which has generally low values of CCT data in comparison with the adjacent land was used On the basis of the above preparation, the most effective image analysis procedure of LANDSAT MSS data for the case of extraction of coastal flow patterns has been obtained through contrast stretching, color composite, and compression of bi-band image data.
A Study on the Geometric Deformation Measurement of Structures by Collinearity Condition
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 4, issue 2, 1986, Pages 77~87
As for the deformation measurement of structure, there are many controversial points in using the methods by the strain guage, inclinometer, bial guage, and geodetic method because of the difficulty of instrument setting and the problem in the degree of accuracy of the results as well as in the economical aspect. Therefore, to verify the superiority of the Close- Range Photogrammetry method for the structural deformation measurement, the result of load deformation on the model structure, which was made using the Close-Range Photogrammetry method was compard with the results which was made using the methods of dial guage, precision level, and triangulation. In addition to that, to consider the general problem which would happen when C. R. P method was applied to the practical structure. The elements of C. R. P method like camera rotation angle (
), exposure elevation (Z
), and angle of inclined base line (
) were experimented, and their specificities were reconsidered. As a result, the application of C. R. P method to the general structure is expected to be increased not only in the aspect of accuracy but in the economical aspect.t.
A Study on the Gross Error Elimination of Image Coordinates
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 4, issue 2, 1986, Pages 88~93
A gross error of the observation, in least squares abjustment from the linear model, have an effect on the residuals which are correlated. Therefore the testing procedure by Baarda, which is based on the standardized residual, is modified and varied. In is paper, presented methods which have been suggested for multiple gross error elimination are analized, and applied to the gross error elimination of image coordinates.