• Title/Summary/Keyword: Functional Image

Search Result 738, Processing Time 0.025 seconds

ATC: An Image-based Atmospheric Correction Software in MATLAB and SML

  • Choi, Jae-Won;Won, Joong-Sun;Lee, Sa-Ro
    • Korean Journal of Remote Sensing
    • /
    • v.24 no.5
    • /
    • pp.417-425
    • /
    • 2008
  • An image-based atmospheric correction software ATC is implemented using MATLAB and SML (Spatial Modeler Language in ERDAS IMAGINE), and it was tested using Landsat TM/ETM+ data. This ATC has two main functional modules, which are composed of a semiautomatic type and an automatic type. The semi-automatic functional module includes the Julian day (JD), Earth-Sun distance (ESD), solar zenith angle (SZA) and path radiance (PR), which are programmed as individual small functions. For the automatic functional module, these parameters are computed by using the header file of Landsat TM/ETM+. Three atmospheric correction algorithms are included: The apparent reflectance model (AR), one-percent dark object subtraction technique (DOS), and cosine approximation model (COST). The ACT is efficient as well as easy to use in a system with MATLAB and SML.

Adaptation of Wavelet Algorithm for Obtaining a Human Brain's Function Map (뇌의 기능적 영역 추출을 위한 Wavelet 변환 알고리즘의 적용)

  • 이상민;장두봉;김동희;김광열;이건기;신태민
    • Proceedings of the IEEK Conference
    • /
    • 2001.06e
    • /
    • pp.203-206
    • /
    • 2001
  • The fMRI which can express the function of brain as MR image is now being studied. The study on the functional image has usually been performed with the MRI in 4 tesla class in goneral, but if gradient echo imaging method could be used, it might make the most of what it has with the MRI in 1.5 tesla class. However, the lack of adequate image post-processing software prevents it from being used as widely as it could be. For the image post-processing algorithm of the functional image, subtraction method and several statistical methods are used with continuous introduction of new method recently. In this paper, we suggest adaptation of wavelet algorithm for obtaining a more reliable brain function map.

  • PDF

A study on perceived service value among the students of Hotel Culinary Department in Hyejeon College (혜전대학 호텔조리과 학생이 인식하는 서비스 가치에 관한 연구)

  • 강경재
    • Culinary science and hospitality research
    • /
    • v.7 no.3
    • /
    • pp.193-209
    • /
    • 2001
  • The result of this study suggests that students' perception of service value is related to functional value with regard to need and satisfaction, epistemic value, image, emotional value, functional value with regard to price and quality, and social value. Specifically female students give less importance to epistemic value than their male counterparts. Students in the 2nd grade gave less favorable scores to the functional value with regard to need and satisfaction, epistemic value, image, emotional value and functional value with regard to price and quality than students in the 1st grade. Students in the night class gave less scores to epistemic value and functional value with regard to price and quality than students in the day class. It is confirmed that the difference between groups by the period in school is in functional value with regard to need and satisfaction, image, emotional value, and functional value with regard to price and quality. And it is also revealed that these results are similar to the results of analysis by the grade. In conclusion college operators should not overemphasize that the department of Hotel culinary arts occupies the leading position of the culinary academic world in Korea and the firms of food service industry positively evaluate the department of Hotel culinary arts, and in order to cope with the rapidly changing environment of the culinary education consistent investment constant changes and of efforts should not be stopped. On one hand the teaching staff of the department of Hotel culinary arts should reconsider their original role, and need behavior and practice to fill their deficiency with steady efforts in terms of students' perceived service value. In addition the students of the department of Hotel culinary arts should not be shackled by the past tradition, should not take a pessimistic view of the present situation, should not take an optimistic view of the future, and should always cultivate their ability to provide for the future.

  • PDF

The Effect of TV News Brand Image on News Viewing Intentions: On the Functional and Symbolic Brand Attributes (TV 뉴스 브랜드 이미지가 시청의도에 미치는 영향 :상징적 속성과 기능적 속성을 중심으로)

  • Kim, Jeong;Oh, Sesung;Jin, Chang-Hyun
    • The Journal of the Korea Contents Association
    • /
    • v.17 no.9
    • /
    • pp.510-522
    • /
    • 2017
  • This study aims to investigate the brand image of Korean TV news in terms of functional and symbolic attributes, to examine their interrelationships and their effect on audience' viewing intentions. A survey was conducted on 412 evening main news viewers of KBS1, SBS, and JTBC, and factor analysis and regression analysis were used. The results show that TV news brand personality was composed of three dimensions including enterprising, sincerity, and tradition. JTBC showed the highest mean value in terms of enterprising and sincerity over SBS and KBS1, and the lowest in tradition. The symbolic and functional attributes of the TV news brand image are highly correlated. Finally, the viewing intentions were determined in the order of news brand functional benefit, sincerity and enterprising personality factor.

A Study on the Relationship Between the Concern about Well-being Lifestyle and the Perceived Image of Hanji Fiber (웰빙 라이프 스타일 관심과 한지 섬유 이미지 지각의 상관관계 연구)

  • Ju, Jeong-Ah;Shim, Joon-Young
    • Korean Journal of Human Ecology
    • /
    • v.19 no.2
    • /
    • pp.389-398
    • /
    • 2010
  • This study examines the relationship between the concern about well-being lifestyle and the perceived image of Hanji fiber. A survey was conducted among male and female consumers aged 20 and over in Jeonju and Daejon from January 4th to 11th, 2008. A total of 168 responses were analyzed by using descriptive statistics, factor analysis, and ANOVA via the SPSS ver. 12. As a result, four factors were determined in the concern for a well-being lifestyle; product consumption, enjoying culture, using therapy and managing the household. The perceived image of Hanji fiber were classified into four elements; traditional, high-quality, functional and popular images. Among the factors of the concern for a well-being lifestyle and the perceived image of Hanji fibers, a partial relationship was observed. There is a positive relationship, especially between the product consumption factor of a well-being lifestyle and the high-quality and functional image of Hanji fiber. Also, there was a positive relationship between the factor of managing the household and the traditional image of Hanji fiber. However, the therapy interest factor of a well-being lifestyle was negatively related to the traditional image of Hanji fiber.

QUICK-LOOK TEST OF KOMPSAT-2 FOR IMAGE CHAIN VERIFICATION

  • Lee Eung-Shik;Jung Dae-Jun;Lee Seung-Hoon
    • Proceedings of the KSRS Conference
    • /
    • 2005.10a
    • /
    • pp.509-511
    • /
    • 2005
  • KOMPSAT -2 equipped with an optical telescope(MSC) will be launched in this year. It can take images of the earth with push-broom scanning at altitude 685Km. Its resolution is 1m in panchromatic channel with a swath width of 15 km After the MSC is tested and the performance is measured at instrument level, it is installed on satellite. The image passes through the electro-optical system, compression and storage unit and fmally downlink sub-systems. This integration procedure necessitates the functional test of all subsystems participating in the image chain. The objective of functional test at satellite level(Quick Look test) is to check the functionality of image chain by real target image. Collimated moving image is input to the EOS in order to simulate the operational environments as if KOMPSAT -2 is being operated in orbit. The image chain from EOS to data downlink subsystem will be verified through Quick Look test. This paper explains the Quick Look test of KOMPSAT -2 and compares the taken images with collimated input ones.

  • PDF

A study on Appreciation and Perceptive Structure of "Keijeok" (Amenity) image ("쾌적" 이미지의 평가 및 인식구조에 관한 연구)

  • Yang, Jin Woo;Roh, Kyong Joon;Ahn, Jung Hyun
    • Journal of Environmental Impact Assessment
    • /
    • v.8 no.1
    • /
    • pp.61-70
    • /
    • 1999
  • The purpose of this study is to understand an appreciation and a perceptive structure of "keijeok" image by Semantic Differential Technique and Factor Analysis. The data used in this study was obtained by the questionnaire survey carried out in Pusan metropolitan city. 15 adjective pairs in the survey were evaluated by the Semantic Differential scales graded 7 ranges from 1(very good) to 7(very bad). A total of 452 samples were collected by the survey and analyzed for this study. The results are as follows; First, 15 variables comprehended to "keijeok" image were estimated as a positive conception(LT 4.0). What's more, residents may perceive "keijeok" image as intangible and aesthetic aspect such as "fresh", "pleasant", "clean". Second, the result of factor analysis shows that factor I which express the major conceptual meaning of "keijeok" image tends to have intangible or aesthetic adjective pairs rather than concrete, whereas factor II which has the weaker meaning compared with factor I may represent a functional aspect of "keijeok" image. It can explain that the perceptive structure of "keijeok" image may be largely influenced by subjective sense, then added or concreted with objective conception or environmental situation. The results can be considered as an important matter which should be reflected at the stage of environmental planning for people's amiable and desirable place.

  • PDF

False-positive I-131 Scan by Contaminated Muffler in a Patient with Thyroid Carcinoma (갑상선암 환자에서 방사성 옥소로 오염된 목도리에 의한 위양성 소견)

  • Seo, Han-Kyung;Kim, Min-Woo;Jeong, Hwan-Jeong;Sohn, Myung-Hee
    • Nuclear Medicine and Molecular Imaging
    • /
    • v.40 no.1
    • /
    • pp.51-52
    • /
    • 2006
  • A 39-year-old female patient who had undergone a total thyroidectomy for a papillary thyroid carcinoma underwent a whole body scan with I-131. The I-131 scan was performed 72 hours after administering 185 MBq (5 mCi) of an I-131 solution. The anterior image of the head, neck, and upper chest showed multiple areas of increased uptake in the mediastinal area considering of functional metastasis. However, radioactivity was not evident in the image taken after removing her clothes and muffler. The image obtained after placing the muffler on the pallet showed that the radioactivity was still present. It is well known that artifacts on an I-131 scan can be produced by styling hair sputum, drooling during sleep, chewing gum, and paper or a cloth handkerchief that is contaminated with the radioactive iodine from either perspiration or saliva. This activity might be mistaken for a functional metastasis. Therefore, it is essential that an image be obtained after removing the patient's clothes. In this study, artifacts due to a contaminated muffler on the I-131 scan were found. These mimicked a functional metastasis of the mediastinal area in a patient with a papillary thyroid carcinoma.

Design and Implementation of Multimedia Functional Module for Digital TV (디지털 TV용 멀티미디어 부가기능 모듈의 설계 및 구현)

  • 김익환;최재승;임영철;남재열;하영호
    • Journal of the Institute of Electronics Engineers of Korea SP
    • /
    • v.41 no.6
    • /
    • pp.231-237
    • /
    • 2004
  • Current paper introduces the multimedia functional module and related interface development for digital TV. The module is developed for displaying the image captured by digital still camera, camcorder, or PC in the digital TV. For these purposes, the module has the interface circuit for accessing five media type of memory cards. It decodes JPEG, BMP, or TIFF image date saved in the memory card and converts the image data to analog RGB signal. It also supports three types of output image size from HD(High Definition) to WXGA(Wide Extended Graphics Array) resolution. So the introduced module could be adopted in all kinds of digital TV set.

A Mixed Norm Image Restoration Algorithm Using Multi Regularization Parameters (다중 정규화 매개 변수를 이용한 혼합 norm 영상 복원 방식)

  • Choi, Kwon-Yul;Kim, Myoung-Jin;Hong, Min-Cheol
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.32 no.11C
    • /
    • pp.1073-1078
    • /
    • 2007
  • In this paper, we propose an iterative mixed norm image restoration algorithm using multi regularization parameters. A functional which combines the regularized $l_2$ norm functional and the regularized $l_4$ norm functional is proposed to efficiently remove arbitrary noise. The smoothness of each functional is determined by the regularization parameters. Also, a regularization parameter is used to determine the relative importance between the regularized $l_2$ norm functional and the regularized $l_4$ norm functional using kurtosis. An iterative algorithm is utilized for obtaining a solution and its convergence is analyzed. Experimental results demonstrate the capability of the proposed algorithm.