• Title/Summary/Keyword: Digital Photograph

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A Study on the Earthwork Calculation Using Photogrammetry (사진측량을 이용한 토공량 결정에 관한 연구)

  • 유복모;유용택;이변직
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.8 no.1
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    • pp.41-50
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    • 1990
  • The purpose of this thesis lies in proving the practicality of photogrammetry and in promoting photogrammetry in earthwork which plays a major role in civil engineering projects. Analysis of accuracy in the determination of ammount of earthework was done by applying interpolation methods in digital terrain model. As a result of analysis of the data acquisition method, in cross-section method produced acceptable accuracy from Simpson's three-eighths rule and prismoidal rule. In results DTM, we have obtained the fact that earthwork calculation accuracy was increased by applying two or more interpolation methods. Therefore, the method by digital terrain model using aerial photograph has proved to be more efficient.

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A Study of Facial Expression of Digital Character with Muscle Simulation System

  • He, Yangyang;Choi, Chul-young
    • International journal of advanced smart convergence
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    • v.8 no.2
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    • pp.162-169
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    • 2019
  • Facial rigging technology has been developing more and more since the 21st century. Facial rigging of various methods is still attempted and a technique of capturing the geometry in real time recently also appears. Currently Modern CG is produced image which is hard to distinguish from actual photograph. However, this kind of technology still requires a lot of equipment and cost. The purpose of this study is to perform facial rigging using muscle simulation instead of using such equipment. Original muscle simulations were made primarily for use in the body of a creature. In this study, however, we use muscle simulations for facial rigging to create a more realistic creature-like effect. To do this, we used Ziva Dynamics' Ziva VFX muscle simulation software. We also develop a method to overcome the disadvantages of muscle simulation. Muscle simulation can not be applied in real time and it takes time to simulate. It also takes a long time to work because the complex muscles must be connected. Our study have solved this problem using blendshape and we want to show you how to apply our method to face rig.

A study of e-passport against forgeries using scrambling encryption method (스크램블링 암호화 기법을 이용한 전자신분증 위변조 방지 기법)

  • Lee, Kwang-Hyoung;Jung, Young-Hoon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.2
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    • pp.849-855
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    • 2012
  • In this paper, a proposed system can be ensured safety using scrambling technique in order to protect personal information which identifies visually from the existing e-passport. This system inserts ID card number and photograph into e-passport using scrambling technique. In this system, we need user private key and CA private key to encrypt and decrypt which make it secure. And It show better performance in throughput by not encrypting or decrypting the whole e-passport.

Fire Drill on Virtual Reality Using GIS Technology (GIS를 이용한 가상모의 소방훈련)

  • Lee Jae-Bok;Kang Sang-Hyeok;Chung Yeung-Jin
    • Fire Science and Engineering
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    • v.19 no.2 s.58
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    • pp.13-19
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    • 2005
  • The vitual reality technology to assist fire activities has been developed using Geographic Information Systems (GIS). For this, the 3D-geographic information of Nagasaki city, Japan was constructed from tracing the aerial photograph and adding the height information of measured buildings including stairs. And also, with large multi-plane stereo presentation equipment called Immersible Projection Technology (IPT), and the 3D-digital map was presented in actual scale of town. As the result, the observer could obtain three-dimensional information in the various angles as if we can gain our experience at first hand, it will help to assist fire activities.

Implementation of Embedded Geo-coding System for Image's Geo-Location (영상의 위치 정보를 위한 임베디드 지오코딩 시스템 구현)

  • Lee, Yong-Hwan;Kim, Young-Seop
    • Journal of the Semiconductor & Display Technology
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    • v.7 no.3
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    • pp.59-63
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    • 2008
  • Geo-coding refers to the process of associating data with location information, and the system deals with geographic identifiers expressed as latitude and longitude or street addresses. Although many services have been launched, there still remains a problem for users to create geo-coded photo with manually labeling GPS(Global Positioning System) coordinate or synchronizing with separate devices. In this paper, we design and implement a geo-coding system which utilizes the time and location information embedded in digital photographs in order to automatically categorize a personal photo collection. An included GPS receiver labels a photograph with its corresponding GPS coordinates, and the position of the camera is automatically recorded into the photo image header at the moment of capture. The place and time where the photo was taken allows us to provide context metadata on the management and retrieval of information.

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RESEARCH AND DEVELOPMENT OF HIGH RESOLUTION SATELLITE IMAGE AND FOREST STRATIFICATION METHOD OF FOREST AREA USING GIS

  • Jo, Myung-Hee;Cho, Kwang-Hyun
    • Proceedings of the KSRS Conference
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    • 2007.10a
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    • pp.215-218
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    • 2007
  • Recently, information-oriented whole domain and scientific management method for nation-wide territory is widly being used due to the remarkable development such as GIS and RS. In addition to this, request for analyzing forest spatial information has been increasing to manage forest resources efficiently. Although forest information using satellite image and GIS has been built to analyze a large amount of forest information scientifically, there are many difficulties to gather information because normally forest area is large and difficult to access.. This research uses high resolution satellite and digital aerial photograph around Kyungju city area to classify forest area, and stratifies forest area through a spot survey and a comparison of sample area. It will be possible for us to draw a more detailed map of forest area than 1/25000 map of forest area through these works.

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Topographic Mapping Using KOMPSAT Imagery

  • Lee, Ho-Nam;Seo, Hyun-Duck;Jung, Hyung-Sup
    • Proceedings of the KSRS Conference
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    • 2002.10a
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    • pp.786-791
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    • 2002
  • Mapping systems using Satellite Imagery has not been well-established compare to conventional Arial Photograph mapping systems. In order for satellite imagery to produce a stable quality of maps, it requires to follow the standard mapping procedures. In this satellite imagery study, we proposed four methods of mapping procedures. Mapping methods were established by generating trial maps and analyzing types of input data and functions of DPW (Digital Photogrammetric Workstation). On quantitative aspect, accuracy of each steps were measured by increasing 2 GCPs each time from the minimum of 6 GCPs. In DLT, with the minimum of 10 points, RMSE is 2 pixels at most. Besides that, interpretation and stereoscopic plotting using KOMPSAT-1 imagery and other simulated imagery was performed. The tests resulted that, for KOMPSAT-1 (6.6m) stereoscopic images, the possibility of interpretation is 44.79% and possibility of stereoscopic plotting is 43.75%. In the other hand, for simulated imagery (1m), the possibility of interpretation is 60.92% and possibility of stereoscopic plotting is 55.18%.

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Uncanny as Aesthetic Experience (심미적 경험으로서의 언캐니)

  • Lee, Joo-eun
    • Psychoanalysis
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    • v.28 no.3
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    • pp.69-75
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    • 2017
  • This paper interprets the work of Hans Bellmer, who took pictures after making a doll and distorting its form, and Diane Arbus, who took documentary photographs of unusual and marginalized people, as uncanny anxiety referred to by Freud. Through these two photographers' works, this paper examined how anxiety was used as an aesthetic strategy, and discussed the uncanny as an aesthetic experience. Uncanny refers to the phenomenon of familiar things being repressed and returning to their original place, or the phenomenon of familiarity being alienated due to repression. The aesthetic strategy of uncanny is used to bring a blind spot in reality that can be easily missed with an ordinary vision into the fore, by allowing for the slight shock to an appreciator. The ultimate goal of uncanny aesthetics is to promote both inner and external changes as well as to expand the scope of imagination, through freely crossing the borders between consciousness and unconsciousness, sympathy and antipathy, and reality and fiction.

Recalculation of Monthly Weather Table for Construction Standard Cost Estimating on Aerial Photogrammetry (항공사진측량 품셈 개정을 위한 월별천후표 재계산)

  • Song, DongSeob
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.37 no.6
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    • pp.571-577
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    • 2019
  • Since the introduction of digital cameras in an aerial-photogrammetry field on 2006, the technological paradigm related to the photogrammetry has been shifting from the analog types to digital types. However, current construction standard cost for the aerial-photogrammetry and the digital mapping are being mixed with analog-based concepts and digital-based methods. In the current standard cost, the monthly weather table is closely related to the calculation of the number of flying days in a taking of aerial photograph. The current monthly weather table uses the results calculated from the observation data of total cloud amount from 1999 to 2007. In this study, the monthly weather table was calculated using the total cloud data during ten years from 2009 to 2018. As a result, the newly calculated number of clear days for 29 stations was analyzed as 44 days decreased by 6 days. The maximum number of clear days decreased in Jinju as 23 days, and the highest decreased clearing days was February.

Extracting Roof Edges of Small Buildings from Digital Aerial Photographs (수치항공사진으로부터 소형건물의 지붕 경계 추출)

  • Lee, Jin-Duk;Bhang, Kon-Joon;Kim, Sung-Hoon;Lee, Kyu-Dal
    • The Journal of the Korea Contents Association
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    • v.14 no.5
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    • pp.425-435
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    • 2014
  • The research for extracting man-made features such as building and road from the aerial photograph or satellite imagery has been performed actively. As lately the resolution of digital aerial photographs was improved, unwanted features(noise) would be often detected. An edge detection algorithm is developed to make up for such a noise problem, make boundaries of wanted objects clear and extract only needed features. The algorithm developed in this research performs separating RGB channels, differencing between channels, transforming in to binary images, excluding noises and restoring shapes, and edge extraction in order. The images to be used for edge detection are prepared through bundle adjustment, DTM extraction, orthorectification and mosaicking. The roof edges of small building on preprocessed digital aerial orthophotos were extracted using the algorithm developed in this study. The validity of the algorithms was proved by comparing edge results of small building extracted in this study with those of conventional methods.