• Title/Summary/Keyword: Image2

Search Result 17,132, Processing Time 0.072 seconds

FY-2C S-VISSR2.0 Navigation by MTSAT Image Navigation (MTSAT Image Navigation 알고리즘을 이용한 FY-2C S-VISSR2.0 Navigation)

  • Jeon, Bong-Ki;Kim, Tae-Hoon;Kim, Tae-Young;Ahn, Sang-Il;Sakong, Young-Bo
    • Proceedings of the KSRS Conference
    • /
    • 2007.03a
    • /
    • pp.251-256
    • /
    • 2007
  • FY-2C 위성은 2004년 10월 발사되어 동경 105도 에 서 운영 중인 중국의 정지 궤도 기상위성 이며 관측 영상은 한반도 지역을 포함하고 있다. 현재 FY-2C S-VISSR2.0[l]에 대한 Navigation 알고리즘이 공개되어 있지 않으며,Navigation을 위하여 S-VISSR2.0에 포함되어 있는 Simplified Mapping Block 정보를 사용하여야 한다. Simplified Mapping Block은 5도 간격의 정보만을 제 공하므로 관측 지 역 의 모든 좌표에 대한 Navigation 정보를 얻기 위해서는 보간볍을 사용하여야 한다. 그러나 보간법은 기준 점에서 멀어질수록 오차가 크게 나타날 수 있다. 따라서 본 논문에서는 모든 좌표에 대한 Navigation 정보를 얻을 수 있는 MTSAT Image Navigation 알고리즘을 FY-2C S-VISSR2.0에 적용하여 Simplified Mapping Block과의 차이를 분석하였다. 분석 방법은 Simplified Mapping Block과 MTSAT Image Navigation[2] 알고리즘을 5도 간격의 격자 점(위경도)에서 Column 및 Line 값 비교, Geo-location된 영상의 품질 비교,WDB2 Map Data의 Coast Line과의 비교를 수행하였다. 분석 결과 격자 점에서의 Column, Line 값은 0.5 이내의 차이 값을 나타내었다. 그리고 Geo-location된 영상 비교에서는 격자 점 주변에서 영상의 차이가 없으나 격자 점에서 멸어질수록 영상의 품질은 MTSAT Image Navigation 알고리즘으로 생성한 영상이 더 우수하였다. WDB2 Map Data의 Coast Line과의 비교에서 오차는 동일하게 발생하였으며,영상의 Column 축에 대한 오차는 평균 1.847 Pixel, 최대 6 Pixel, 최소 oPixel 이며, Line 축에 대한 오차는 평균 0.135 Pixel, 최대 4 Pixel, 최소 0 Pixel을 나타내었다.

  • PDF

A Design of 2D Vector Graphics Accelerator with a Modified Scan-line Edge flag Algorithms including Clipping and Super Sampling (클리핑과 슈퍼샘플링을 포함한 스캔라인 엣지 플래그 방식의 2D 벡터 그래픽 가속기 설계)

  • Lee, Kwang-Yeob
    • Journal of IKEEE
    • /
    • v.12 no.2
    • /
    • pp.124-130
    • /
    • 2008
  • Vector Graphics describes an image with mathematical statements instead of pixel information. Which enables easy scalability without loss in image quality and usually results in a much smaller file size compared with bitmap images. In this paper, we propose Vector Graphics Accelerator for mobile device with scan-line edge flag algorithm to render vector image without sorting process of edge. Proposed Vector Graphics Accelerator was verified with OpenVG 2D Vector image. The estimated processing time of proposed Accelerator with Tiger image is 12ms on Tessellation process, and total rendering time is 208ms. Estimated rendering performance with Tiger image is about 5 frame per second

  • PDF

Image Map Extraction from Precision Processed Landsat Multispectral Scanner(MSS) and Thematic Mapper(TM)Images

  • Yang, Young-Kyu;Bae, Young-Rae
    • Korean Journal of Remote Sensing
    • /
    • v.2 no.2
    • /
    • pp.107-116
    • /
    • 1986
  • A unique approach to access Landsat satellite imagery has been implemented on IBM PC microcomputer in order to generate image maps to be used as a substitute and/or supplement for a conventional topographic map. This method enables user to automatically: o extract a nominal image map, o geoencode or calibrate as an image map, and o create a multitemporal image file using CCTs containing precision processed Landsat MSS and TM images. These map extraction process includes: o location of map area in the selected CCT, o conversion of map coordinates to image coordinates, o extraction of map area, and o rotation of image to the true North/South and East/Weat direction.

A Study on the Influence of Visual Merchandising and Brand Recognition on Perceived Risk, Brand Image and Brand Loyalty (VMD 이미지와 브랜드 인지도가 위험 지각, 브랜드 이미지 및 브랜드 충성도에 미치는 영향에 관한 연구)

  • Park, Min-Jung;Lee, So-Eun
    • The Research Journal of the Costume Culture
    • /
    • v.16 no.5
    • /
    • pp.826-840
    • /
    • 2008
  • It has been important for retailers to create and maintain strong brand image and brand loyalty in highly competitive markets. The purpose of the study is to investigate the effect of VMD(Visual Merchandising) image and brand recognition on consumers' perceived risk, brand image and brand loyalty. A 2(VMD image: positive vs. negative) $\times$ 2(brand recognition: high vs. low) between-subjects factorial design experiment was conducted. College students(n=308) participated in the experiment. The results of this study revealed: (1) Positive VMD image reduced perceived risk and increased positive brand image and brand loyalty compared to low VMD image; (2) High brand recognition had a negative impact on perceived risk and positive effects on brand image and brand loyalty; (3) The less risk and the more positive brand image were perceived, the higher brand loyalty were generated. The study provided theoretical and practical implications and future research regarding VMD, brand recognition, and brand loyalty.

  • PDF

A Study on the Image Positioning Strategy according to the Games of Marine Sports (해양스포츠 종목에 따른 이미지 포지셔닝 전략에 관한 연구)

  • PARK, Tae-Seung
    • Journal of Fisheries and Marine Sciences Education
    • /
    • v.29 no.2
    • /
    • pp.526-536
    • /
    • 2017
  • This study intended to understand similarity of image between games and position of image attribute perceived by consumers according to the games of marine sports using MDS (Multidimensional Scaling). Through the foregoing, this study aims to provide preliminary data for establishing marketing strategies for games of marine sports by accurately understanding images of marines sports perceived by consumers. For survey targets, this study selected students of K University located in Gyeonggi-do as a population, and extracted samples using convenience sampling out of non-probability sampling methods targeting 200 students who showed intention of participation in this study, and total 188 sheets of questionnaire were used as final data excepting 12 sheets that are filled up unfaithfully or considered unreliable. For data processing, this study conducted Frequency Analysis, Descriptive Statistical Analysis, Reliability Analysis, MDS (Multidimensional Scaling) and Multiple Regression Analysis, and study results show that water ski and wakeboard(.602) have the most similar image attribute, indicating that image attributes of scuba diving and water ski(2.031) are positioned farthest with each other. As for image attribute, image attribute of water ski has appearance and progressiveness, windsurfing has an image attribute of positive, scuba diving has an image attribute of negation, and marin rafting has an image attribute of friendliness.

A Study on the Characteristic and Image of Oriental Costume Design:-Korea, China and Japan- (동양적 복식디자인의 특성과 이미지 연구(제2보)-한국, 중국, 일본을 중심으로-)

  • 김희정;이경희
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.24 no.3
    • /
    • pp.313-322
    • /
    • 2000
  • The purpose of this study was to investigate the characteristic and image of oriental costume designs which represented among three countries, Korea, China and Japan. The specific objectives were: 1) to find out the positioning of oriental costume design. 2) to find out relation to oriental costume image and preference. The stimulus were 75 costume designs of contemporary costume which represented the traditional images of three countries Korea, China and Japan. The main survey of questionary consisted of their evaluation of the oriental costume image by 26 semantic differential bi-polar scales and the subjects were 99 female students majoring in clothing and textile. The data were analyzed by Multidimensional Scaling Method and Regression Analysis. The specific objective were as follows: 1. According to image positioning. The oriental costume design was classified by simple-decorative, soft-hard. 2. As result of regression analysis. The preference of oriental costume image was related to attractive factor.

  • PDF

A Study on Laser Cutting Path Generation by Image Processing (이미지처리를 통한 레이저 가공경로생성에 관한 연구)

  • 박정호;이희관;양균의;김공묵
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 2000.11a
    • /
    • pp.934-938
    • /
    • 2000
  • This paper presents a laser cutting of 2D image. 2D image in pixel graphic format is converted into vector graphic image by image processing. Bitmap graphics are made easily, but can not being used in application works for geometry transition. The Sobel's Edge detection method is used to find boundary points on 2D image. The points are fitted into curves with sampling and filtering. Sampling can provide efficient computation and filtering reconstuct features in image. The NC code is generated on MURBS curve of the points. Also, the offset of contour and cutting conditions are considered.

  • PDF

Development of Basic Application Software for KOMPSAT High Resolution Images

  • Park S. Y.;Lee K. J.;Kim Y. S.
    • Proceedings of the KSRS Conference
    • /
    • 2004.10a
    • /
    • pp.509-511
    • /
    • 2004
  • This paper outlines the development of image processing system, which will allow the general users in Government and Public organizations easily to use and apply KOMPSAT EOC images in their own business. The system includes an import/export module of EOC image distributed in Hierarchical Data Format (HDF) file and various image processing analysis modules. Especially, the image mosaic and subset functions are designed to use EOC image as an image map, generating the Ortho-image module. To update the various spatial data with EOC image, some essential modules such as change detection by pattern recognition, overlay between images and vector data, and modification of vector data are implemented in the system. The system is developed based on the user request analysis of government agency, and suited for more efficient use of satellite image in public applications. Such system is expected to contribute to practical application of KOMPSAT-2 that will be launched in 2005. Further efforts will be made to accommodate the KOMPSAT -2 MSC data.

  • PDF

A progressive image transmission system based on wavelet (웨이브렛 기반 점진적 영상 전송 시스템)

  • 윤국진;조숙희;안충현
    • Proceedings of the IEEK Conference
    • /
    • 2003.11a
    • /
    • pp.263-266
    • /
    • 2003
  • In this paper, we propose a new progressive image transmission system including the image coding scheme that efficiently uses the relationship between the properties of a spatial image and its wavelet transform. Firstly, an original image is decomposed into several layers by the wavelet transform, and simultaneously decomposed into 2"x2" blocks. Each image is classified into two image types according to the standard deviations of its blocks. And then each block is categorized into two regions by different thresholds according to the image types, i.e., significant activity region (SAR) and insignificant activity region (IAR). Simulation results show that the proposed coding method has better performance than the EZW and SPIHT in terms of image quality and transmitted bit-rate. In addition, it can be applied to the applications requiring the progressive image transmission.nsmission.

  • PDF

Comparison of paramedic image and its determinants between paramedic and non-paramedic students (응급구조학과 학생과 타 학과 학생이 지각한 응급구조사 이미지와 이미지 결정요인)

  • Park, Jeong-Mi;Kim, Su-Min
    • The Korean Journal of Emergency Medical Services
    • /
    • v.19 no.2
    • /
    • pp.39-49
    • /
    • 2015
  • Purpose: The purpose of the study was to identify differences in paramedic image and its determinants between paramedic and non-paramedic students. Methods: From September 18 to 26, 2013, data were collected from 146 universities students by using a self-reported questionnaire. Results: The mean paramedic image score was 4.22 for paramedic students and 3.89 for non-paramedic students. The paramedic students had a more positive paramedic image than the non-paramedic students. Among three subcategories of paramedic image, professional image was selected as the most positive factor. The determinants of paramedic image differed between the paramedic and non-paramedic students. The mean subjective determinants score showed higher than those of any other determinants for both student groups. Conclusion: The findings of this study showed that practical strategies are needed to promote a positive paramedic image among non-paramedic students.