• Title/Summary/Keyword: path-revealing

Search Result 17, Processing Time 0.023 seconds

Robust Radiometric and Geometric Correction Methods for Drone-Based Hyperspectral Imaging in Agricultural Applications

  • Hyoung-Sub Shin;Seung-Hwan Go;Jong-Hwa Park
    • Korean Journal of Remote Sensing
    • /
    • v.40 no.3
    • /
    • pp.257-268
    • /
    • 2024
  • Drone-mounted hyperspectral sensors (DHSs) have revolutionized remote sensing in agriculture by offering a cost-effective and flexible platform for high-resolution spectral data acquisition. Their ability to capture data at low altitudes minimizes atmospheric interference, enhancing their utility in agricultural monitoring and management. This study focused on addressing the challenges of radiometric and geometric distortions in preprocessing drone-acquired hyperspectral data. Radiometric correction, using the empirical line method (ELM) and spectral reference panels, effectively removed sensor noise and variations in solar irradiance, resulting in accurate surface reflectance values. Notably, the ELM correction improved reflectance for measured reference panels by 5-55%, resulting in a more uniform spectral profile across wavelengths, further validated by high correlations (0.97-0.99), despite minor deviations observed at specific wavelengths for some reflectors. Geometric correction, utilizing a rubber sheet transformation with ground control points, successfully rectified distortions caused by sensor orientation and flight path variations, ensuring accurate spatial representation within the image. The effectiveness of geometric correction was assessed using root mean square error(RMSE) analysis, revealing minimal errors in both east-west(0.00 to 0.081 m) and north-south directions(0.00 to 0.076 m).The overall position RMSE of 0.031 meters across 100 points demonstrates high geometric accuracy, exceeding industry standards. Additionally, image mosaicking was performed to create a comprehensive representation of the study area. These results demonstrate the effectiveness of the applied preprocessing techniques and highlight the potential of DHSs for precise crop health monitoring and management in smart agriculture. However, further research is needed to address challenges related to data dimensionality, sensor calibration, and reference data availability, as well as exploring alternative correction methods and evaluating their performance in diverse environmental conditions to enhance the robustness and applicability of hyperspectral data processing in agriculture.

Reevaluating the National Museum of Korea's Evacuation and Exhibition Projects in the 1950s (6.25 전쟁기 국립박물관 소장품의 국외반출 과정에 대한 신고찰)

  • KIM Hyunjung
    • Korean Journal of Heritage: History & Science
    • /
    • v.57 no.1
    • /
    • pp.198-216
    • /
    • 2024
  • This article reevaluates the National Museum of Korea's pivotal actions during the Korean War in the 1950s and its aftermath. It argues that the evacuation of the museum's collection to Busan and the subsequent exhibition "Masterpieces of Korean Art" in the United States in 1957 were not isolated events, but rather interconnected facets of a larger narrative shaping the museum's trajectory. With newly discovered archival evidence, this study unravels the intricate relationship between these episodes, revealing how the initial Busan evacuation evolved into a strategic U.S.-led touring exhibition. Traditionally, the Busan evacuation has been understood solely as a four-stage relocation of the museum's collections between December 1950 and May 1951. However, this overlooks the broader context, particularly the subsequent U.S. journey. Driven by the war's initial retreat of the war, the Busan evacuation served as a stepping stone for evacuation to Honolulu Museum of Art. The path of evacuation took an unexpected turn when the government redirected the collections to the Honolulu Museum of Art. Initially conceived as a storage solution, public opposition led to a remarkable transformation: the U.S. exhibition. To address public concerns, the evacuation plan was canceled. This shift transformed the planned introduction into a full-fledged traveling exhibition. Subsequently approved by the National Assembly, the U.S. Department of State spearheaded development of the exhibition, marking a distinct strategic cultural policy shift for Korea. Therefore, the Busan evacuation, initially envisioned as a temporary introduction to the U.S., ultimately metamorphosed into a multi-stage U.S. touring exhibition orchestrated by the U.S. Department of State. This reframed narrative sheds new light on the museum's crucial role in navigating a complex postwar landscape, revealing the intricate interplay between cultural preservation, public diplomacy, and strategic national interests.

An Exploration on the Creative Disposition, Creative Thinking Power, Multiple Intelligences and Morality of Gifted Children (유소년영재의 창의적 성향.창의적사고력.다중지능.도덕성에 관한 탐색)

  • Ryu, Bong-Sun;Lee, Gyoung-Eun;Hong, Seong-Yong
    • Journal of Gifted/Talented Education
    • /
    • v.21 no.4
    • /
    • pp.979-992
    • /
    • 2011
  • Gifted children cultivate their many talents through experience. For the purpose of revealing the talents or abilities of gifted children, it is necessary to provide them with various types of environment for their exploration from the early stage of their school age. In addition, knowing their concern, aptitude and interest from the early stage of their school age will be much helpful for them to grow, advance and search for their future career path. Accordingly, the purpose of this study is to examine the definitional and cognitive characteristics of gifted children through tests on the creative disposition, creative thinking power, multiple intelligences and morality of gifted children at the early stage of their school age in order to provide basic information on the gifted children studies. Accordingly, 90 gifted children were selected as the participants of this study through observation and recommendation. The result showed much difference between the second grade and the third grade in their creative disposition, creative thinking power, multiple intelligences and morality according to school year. As for the difference according to gender, the second grade female students showed meaningful differences in the sub-domain of creative disposition, multiple intelligences and morality and the third grade showed no differences. Such study result shows that students in upper school year clearly have their own sense of purpose.

Study on the Character of the Korean Traditional Qigong - The research of the origin of Qigong derived from the Korean concept of mystic hermits [xian] - (한국 기공의 정체성에 관한 연구 -신선가를 중심으로 본 기공의 기원에 관한 고찰-)

  • Lee Jeong Won;Kim Gyeong Cheol;Lee Yang Tae
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.18 no.1
    • /
    • pp.1-7
    • /
    • 2004
  • Oriental Medicine has long been centered around Qi[vital force], hence adopting Qigong and the art of regimen for training the body and relaxing the mind so as to prevent and heal illness. It has not been such a long time since Qigong method had been performed and spot-lighted out of numerous methods in Oriental Medicine. In China and Korea alone, diverse cases and papers are published, only revealing so many steps toward the establishment of diachronic description, theoretical foundation, and clinical practice. Historical approach is an essential part of recognizing a subject. When you step along its path and comprehend what it were, you can also grasp what it is and what it will be. Establishment of Qigong history is also vital to research Qigong in theory and practice. Generally, Qigong was transmitted from China to Korea, whereas the opposite explanation, that it originated from Korean Taoism, is supported by the minority based on certain texts concerning ancient history. In this paper, I support the theory of Korean originality based on the following grounds: First, the location of Qi and Van, the motherland of Chinese Taoism provides a strong evidence that Korean tradition had been absorbed by them and formed the tradition of mystic hermits(shenxian). Second, Guangchengzi, the originator of mystic hermits, is from Dongyi tribe according to Cheonghakjib. Third, the myth of Dangun has pure form of unique Korean folklore possessing the distinctive feature of mystic hermits tradition, uninfluenced by Chinese Taoism. Fourth, in ideographical aspect, the character 'xian(仙)', was invented as the Korean concept of mystic hermits[xian] was flowed in to China. Moreover, There is high probability that it was based on the concept of mystic hermits shown in the myth of Dangun in Its original formation. Fifth, considering the relation between wild ginseng and the tradition of mystic hermits, that tradition can be formed very naturally in Korean area. Sixth, the analogical similarity between archetype of Korean tradition and Taoistic trilogy, the foundational idea of the tradition, gives genealogical basis to its origin. Seventh, the tradition of mystic hermits and Shamanism, which constitues the prototype of Korean mind as an original religious tradition, are undiscernible in their root In Conclusion, We can reach the idea that the origin of Qigong derives from Korean tradition, not that of China. The tradition of mystic hermits was transformed to ego-centric seclusionism when it faced the anarchy of Warring states period in China, whereas it was developed into humane proriety and worship of Heaven base on the programme of 'universal fraternity in pursuit of interst for man'. In prospect, it is highly required to develop and interpret traditional discipline methods in Korea so as to utilize them for clinical Qigong in practice.

The Effects of Perceived Parental Psychological Control on Social Anxiety of Young Adults in Twenties: Internalized Shame and Ambivalence over Emotional Expressiveness as Mediators (20대 성인이 지각한 부모의 심리적 통제가 사회불안에 미치는 영향: 내면화된 수치심과 정서표현 양가성을 매개변인으로)

  • Kim, Dae-hi;Kim, Myung-shig
    • Korean Journal of Culture and Social Issue
    • /
    • v.27 no.1
    • /
    • pp.51-71
    • /
    • 2021
  • The purpose of this study was to testify the relationship of parental psychological control perceived by young adults in twenties and their social anxiety, and the mediating effects of internalized shame and ambivalence over emotional expressiveness in the model. The online questionnaires were administered to 350 young adults in twenties to assess the four major variables(parental psychological control, internalized shame, ambivalence over emotional expressiveness and social anxiety). In correlation analysis, parental psychological control, social anxiety, internalized shame and ambivalence over emotional expressiveness were positively correlated. Bootstrapping method was used to test the mediating effects, and this study here is statistically significant revealing the path of parental psychological control to social anxiety by mediator such as internalized shame and ambivalence over emotional expressiveness. Finally, parental psychological control-social anxiety partial mediator model was supported. As a result of the study, the higher the level of parental psychological control, the higher the level of internalized shame and ambivalence over emotional expressiveness, and subsequently the higher the level of social anxiety in twenties. The implication and limitation of this study, and future tasks were discussed.

Local, Jobless Person, Homo Economicus, Three Axis of Kwak Hashin's Works (로컬, 룸펜, 경제적 인간, 곽하신 소설의 세 좌표)

  • Kim, Yang-Sun
    • Journal of Popular Narrative
    • /
    • v.26 no.3
    • /
    • pp.161-188
    • /
    • 2020
  • This paper seeks to expand the scale of literary history by restoring and analyzing the whole aspect of Kwak Hashin's works, which has so far been studied little. For this purpose, I notice the rupture of discontinuity of his works which is greatly divided into the colonial period and post Korean war period. And the characteristics of each works can be analyzed based on the three axis, local(colonial period), jobless person(post-war period), and Homo Economicus(some short stories, and popular novels in post-war period). In Chapter 2, 'Local-the world of Munjang', I evaluated that Kwak Hashin's novel, which had been published in the late 1930s in the Journal of Munjang, embodied anti-modern aesthetic consciousness, as clearly revealing the sorrow for disappearing things, the pre-modern sense of time, and the preference for local. In Chapter 3, 'Jobless Person' and Chapter 4, 'The State of All People's Struggle against All People, The Appearance of Homo Economicus', the Korean society in late 1950s, which entered underdeveloped capitalist countries after Korean war, can be characterized by two contrasting male-gender, one is the jobless, incompetent male, and the economic man on the other hand. In the late '50s, Lumpen(=Jobless Person) novels showed the problems of the Korean economy through incompetent male character. The intelligent men took the path to survival rather than morality or intimacy, projecting their own incompetence and anxiety to women/wives. In the popular novels Women's Song and The Shadow of the Fig Tree, achievement-oriented male figures who betrayed their colleagues, and exploited women's sex by using love relationships to rise to the top appeared. They can be defined as the Homo Economicus who embody the state of universal struggle against all people. These novels showed the formation of the masculinity in post Korean war period, which pursued the survival of the fittest, borrowing form of popular novel. As we have seen so far, Kwak Hashin needs to be re-evaluated as an writer who expanded the modern literary history in the outside of literature. He was the last generation writer written in Korean late colonial period, and provided the model of postwar literature by borrowing the form of journalism and popular novels.

Conjunction of Consciousness and The Unconscious·Individuation and Circumambulation of The Psyche: Focusing on the Hexagram Bi, Pi (比) and Hexagram Gon, Kun (坤) (의식과 무의식의 통합 및 개성화와 정신의 순환: 수지비괘(일양오음괘)와 중지곤괘를 중심으로)

  • Hyeon Gu Lee
    • Sim-seong Yeon-gu
    • /
    • v.38 no.1
    • /
    • pp.1-44
    • /
    • 2023
  • Hexagram Bi (比 ䷇ 8) is one of the hexagrams comprised of one-unbroken line and five-broken lines. The hexagrams of one-unbroken and five-broken lines symbolize the relationship and dynamics between one yang-consciousness and the five-yin unconsciousness. The hexagram of one-unbroken line and five-broken lines has six different images depending on the position of the one unbroken line from the beginning line to the top line. In terms of psychology, this means that the position change of one yang line in relation to five yin lines may symbolize the function of consciousness which clarifies and determines the content of the psyche. In addition, the flow of psychic energy can be examined through the process of one unbroken line's movement. In other words, the psychic contents of the beginning line of hexagram Bok (復 ䷗ 24), which is the beginning of the hexagram of one-unbroken line and five-broken lines, proceed sequentially, and then arrive at the process of the last sixth, hexagram Bak (剝 ䷖ 23) through the fifth, the hexagram Bi (8). That is, it can be said that the content of the hexagram and the line determined according to the position of one unbroken line show a certain psychic flow. As a result, the first hexagram Bok (復 ䷗ 24), after recovering and starting newly, means the beginning of consciousness. After that the process of proceeding with the second, third, and fourth lines represents the flow of consciousness. And in the fifth place, the fifth line of hexagram Bi, it reaches its peak and is placed in the optimal state of consciousness because of its right and centered position at this hexagram Bi. Like nature, the psyche gradually enters the path of decline from the highest state, which leads to the last sixth, the top line of hexagram Bak. However, the top line of the hexagram Bak, where everything falls off, contains the content of starting again in its top line. It is the beginning line of hexagram Bok to inherit this. This means the circumambulation of the psyche that changes from a psychologically difficult state of depression to a stage of recovery. There is a stage that must be passed in this circulation process, and that is the hexagram Gon (坤 ䷁ 2). October(tenth month)'s hexagram Gon is placed between hexagram Bak, the ninth month of the lunar calendar, and hexagram Bok, the eleventh month of the lunar calendar. This represents that the flow of recovery must go through a maternal process of hexagram Gon. The retreat to the psychological uterus is inevitable in regenerating the psyche. This process flows from the hexagram Bak and through hexagram Gon to the hexagram Bok. At this situation the hexagram Gon acts the absolutely necessary role. In addition, the main body of the hexagrams of one-unbroken and five-broken lines, including the Bi hexagram, is also the Gon hexagram composed of six-broken lines. In other words, all six hexagrams of one-unbroken and five-broken lines have a certain relationship with the Gon hexagram, and it would be meaningful to look at the correlation between the unbroken lines of the hexagrams of one-unbroken and five-broken lines and the corresponding broken lines of the hexagram Gon. This can be said to be the dynamics of the maternal unconscious connected to the state of consciousness in six forms. Therefore, each hexagram of one-unbroken and five-broken lines symbolizes the expression of the integration the mother archetype with the consciousness. Revealing this well is the meaning of the hexagram of one-unbroken and five-broken lines. Its hexagram image consists of a combination of Gon (☷), which symbolizes the mother, and the thunder (☳) the eldest son, the water (☵) the middle son and the mountain (☶) the third son. As a result, the hexagram Bok (復 ䷗ 24), Sa (師 ䷆ 7), Gyeom (謙 ䷠ 15), Ye (豫 ䷏ 16), Bi (比 ䷇ 8) and Bak (剝 ䷖ 23) are sequentially created in the order of the unbroken line. This is symbolically the evolutionary process of consciousness. In this way, the hexagrams of one-unbroken and five-broken lines, which mean the conjunction of mother and son, represent the advancing relationship between the maternal unconscious and consciousness. In addition, the relationship with the mother according to the position of the son is related to the dynamics of mother archetype to the attitude of consciousness. The psychological meaning can be deduced from the flow of six lines of hexagrams of one-unbroken and five-broken lines. And the state in which the activation of the consciousness is at its peak is the fifth line of the hexagram Bi, and comparing it with the contents of the corresponding fifth line of hexagram Gon not only can find the state and meaning of the conjunction of consciousness and the maternal unconscious, but the entire flow can be compared to the individuation process.