• Title/Summary/Keyword: image acquistion

Search Result 6, Processing Time 0.021 seconds

An implementation of the high speed image processing board for contact image sensor (Contact image sensor를 위한 고속 영상 처리 보드 구현)

  • Kang, Hyun-Inn;Ju, Yong-Wan;Baek, Kwang-Ryul
    • Journal of Institute of Control, Robotics and Systems
    • /
    • v.5 no.6
    • /
    • pp.691-697
    • /
    • 1999
  • This paper describes the implementation of a high speed image processing board. This image processing board is consist of a image acquisition part and a image processing part. The image acquistion part is digitizing the image input data from CIS and save it to the dual port RAM. By putting on the dual port memory between two parts, during acquistion of image, the image processing part can be effectively processing of large-volume image data. Most of all image preprocessing part are integrated in a large-scaled FPGA. We arwe using ADSP-2181 of the Analog Device Inc., LTD. for a image processing part, and using the available all memory of DSP for the large-volume image data. Especially, using of IDMA exchanges the data with the external microprocessor or the external PC, and can watch the result of image processing and acquired image. Finally, we show that an implemented image processing board used for the simulation of image retreval by the one of the typical application.

  • PDF

Radiation image mapping system (방사선 영상 매핑 장치)

  • 최영수;박순용;이종민
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 1997.10a
    • /
    • pp.1884-1887
    • /
    • 1997
  • The increasing concern over radiation exposure in the nuclear industry has fostered agrressive efforts to reduce the levels of radiation exposure. One area of the effot to reduce the radiation exposure is the development of a remote radiation monitoring system. Remote radiation monitoring can serve many benificaial functions reduce exposure to radiation by plant personnel, impruve the quality of the data that is collected and recognize the radiation environment easily. Radiation mapping system gives a good information that represents radiation level distribution. The system we have developed consists of a data acquistion parts, mobile robot and remote control parts. Data acquisition parts consist of radiation detection module and vision acquistion module which collect radiation data, visiion data and distance information. In remote control parts, the acquision data are processed and displayed. We have constructed radiation mapping image by overlaying the vision and radiation data. The radiation mapping techniques for displaying the results of the survey in an easily comprehendable form will facilitate a better understanding of the radiation environment in the facility. This system can reduce workers radiation exposure and aid to help work plan, so it has significant benifits in cost and safety.

  • PDF

Investigation on Tideland Reclamation Projects in North Korea using Satellite Image Data (인공위성 화상자료를 이용한 북한의 간척자원 조사)

  • 조병진;이지근;안기원
    • Proceedings of the Korean Society of Agricultural Engineers Conference
    • /
    • 1999.10c
    • /
    • pp.175-180
    • /
    • 1999
  • The purpose of this study is to investigate on tideland recalamation project as a part of situation on farm land improvement measures in North Korea. By using satelite image data beyond the national boundaries, it makes possbile to analyze tideland reclamation projects, and owing to the developed software and procedure we can analyze data regardless of difference in data acquistion date. Satellite image data LANDSAT JEARS-1 data are mainly used, and analyzing software ER Mapper, ERDAS , IDRISI are used . Reclamation survey result made by the ministry of unification in 1994 were examined by means of remote sensing using satellite image data. The results are ; Completed and/or partly completed project are 24, 596ha and planned are about 142, 223 ha, 166, 819 ha in total. However, they already reported about 300 thousand ha would be reclamined from the sea in early 1980.

  • PDF

A Study on the Construction Technique of DEM Using a Commercial Map (상용지도를 이용한 DEM 구성기법에 관한 연구)

  • 박성욱;최관순;강치우;이쾌희
    • Korean Journal of Remote Sensing
    • /
    • v.6 no.1
    • /
    • pp.1-9
    • /
    • 1990
  • This paper presents a method of the constructing DEM(Digital Elevation Model) from the image data acquired from a commercial map using the scanner. Data acquistion, mark elimination, linking the broken line, elevation interpolation and 3D display processing are performed and the results are satisfatory.

A New Fast Spin Echo MR Imaging Technique for the Simultaneous Dual Echo Image Acquisition (Dual Echo 영상의 동시 획득을 위한 새로운 Fast Spin Echo 자기 공명 영상법)

  • 조민형;이수열
    • Journal of Biomedical Engineering Research
    • /
    • v.19 no.1
    • /
    • pp.91-100
    • /
    • 1998
  • In magnetic resonance imaging, the fast spin echo imaging technique is a widely used clinical imaging method. since its scanning time is much shorter than the conventional spin echo imaging and it gives the almost same image quality. However, the fast spin echo technique has two times longer imaging time for the dual echo acquisition which can obtain a spin density image and a T-give the same qulity images at the single echo imaging time. T he proposed technique reduces the imaging time by overlapping most of were obtained at the 0.3T permanent MRI system are presented.

  • PDF

The Spatial Analysis and Acquistion of Precision digital data due to Cultural Properties using the Photogrammetry (영상분석기법에 의한 문화재의 정밀 수치자료 획득과 공간분석 - 성덕대왕신종에 대해 -)

  • Kang, Joon-Mook;Bae, Yeoung-Sung;Bae, Sang-Ho;Lee, Seung-Son
    • Journal of Korean Society for Geospatial Information Science
    • /
    • v.6 no.1 s.11
    • /
    • pp.65-74
    • /
    • 1998
  • The acquisition and analysis system of accurate geometrical digital data is very important in side of maintaining the traditional culture for the preservation of cultural properties. This study is on the construction and shape analysis of precise digital data to manage more successfuly using the CRP method and 3D Mono Mobile System. Also this study could acquisite 3D geometrical digital data, make such various space analysis and section, projection, and calculation of bias, area and volume and modeling by rendering technique on the misterious bell of great king of SungDuck, one of the greatest bells in periods of TongIl Silla. So, We suggest utilization of image analysis method to safety diagnosis for the maintenance of cultural properties, archeological and artistic research.

  • PDF