• Title/Summary/Keyword: Information Fusion

Search Result 1,887, Processing Time 0.03 seconds

Method for Restoring the Spatial Resolution of KOMPSAT-3A MIR Image (KOMPSAT-3A 중적외선 영상의 공간해상도 복원 기법)

  • Oh, Kwan-Young;Lee, Kwang-Jae;Jung, Hyung-Sup;Park, Sung-Hwan;Kim, Jeong-Cheol
    • Korean Journal of Remote Sensing
    • /
    • v.35 no.6_4
    • /
    • pp.1391-1401
    • /
    • 2019
  • The KOMPSAT-3A is a high-resolution optical satellite launched in 2015 by Korea Aerospace Research Institute (KARI). KOMPSAT-3A provides Panchromatic (PAN-0.55 m), Multispectral (MS-2.2 m), and Mid-wavelength infrared (MIROR-5.5 m) image. However, due to security or military problems, MIROR image with 5.5m spatial resolution are provided down sampled at 33 m spatial resolution (MIRrd). In this study, we propose spatial sharpening method to improve the spatial resolution of MIRrd image (33 m) using virtual High Frequency (HF) image and optimal fusion factor. Using MS image and MIRrd image, we generated virtual high resolution (5.5 m) MIRORfus image and then compared them to actual high-resolution MIROR image. The test results show that the proposed method merges the spatial resolution of MS image and the spectral information of MIRrd image efficiently.

Forensic Geology : New Pioneer in Geological Area (과학수사지질학(Forensic Geology)의 출현: 새로운 지질학 영역의 구축)

  • Lee, Ok-Sun;Kim, Seong-Yong
    • Economic and Environmental Geology
    • /
    • v.40 no.5
    • /
    • pp.705-711
    • /
    • 2007
  • We should treat carefully the one related to human rights among a large number of decision-making in our daily lives. As it is necessary to obtain physical evidences in the process of criminal investigation for solving a certain crime based on the principle of evidence, it leads to an increase in demand for forensic science and forensic geology. Forensic geology could be regarded as a fusion discipline of geology and forensic investigation and it is principally concerned to the study on the connection of a suspect and a crime scene with soil evidence which could be experimented using geological data and methods. So these results could be used as valuable information in a court. After its academic foundation has been builded since the last 1970s, its research objects have been expanded from soil evidence like rocks, minerals, soils, sediments to sociocultural, political, military and medical objects like ancient relics, mines, corpses. Its role is expanded from the simple finding of a particular location to the examination of archaeological theories and historical facts, the testimony of the cause of environmental pollution and the chronic demonstration of geological distribution of plants and anthropological origination. And these bring this discipline promptly to accept developed geological methodologies and to satisfy various forensic geological needs. Specialized forensic investigation institutes work actively for the R&D activities of forensic geology. In Korea, national institute of scientific investigation works a small part of forensic geological activities in total activities of forensic investigation. In conclusion, we concern to the importance of systematic discussion of building in proper position of forensic geology through its R&D methods, application cases of its performance and etc. based on geological characteristics in our country by a specialized geoscience institute.

A Study on the new works obtained by the combination of prints and various media (판화와 다양한 매체와의 결합으로 얻어지는 새로운 작품에 관한 고찰)

  • Song, Dae-sup;Park, Ye-shin
    • Cartoon and Animation Studies
    • /
    • s.46
    • /
    • pp.207-231
    • /
    • 2017
  • Printmaking is a field of fine arts and is placed on a vague boundary that is perceived as a commercial product with a popular character due to the speciality of editions. Advances of modern science and technology has developed a new technique of printmaking, and the fusion of printmaking and computer has shown the possibility of reproduction art. Reproduction printmaking has been heavily influenced by photography and extended areas, and the various forms of printing have brought about many changes and attempts by stimulating the possibilities of indirect art at various angles. As the history of printmaking and technology closely relate, the development of computer makes widespread expansion of plural artistry, technological and artistic change. A new conceptual shape can be created on the copied image simply by placing the material of the print on the smoothly flat surface expressed in digital form. The process and the result of such work show the area of unique work which is different from the value of the $\grave{a}$ la carte art or the characteristics of the material given by the print. The deprecated perception of reproducibility evaluated the value of the work in a direct sense of printmaking. It is undeniable that it is devalued by a bundle of works regardless of the value of each edition. However, the physical properties of the prints on the paper are brought up with hand drawings drawn on the canvas by hand. And it becomes an opportunity to show new aspect and change through the process of combining digital print information on paper. The diversity of media is sometimes a controversy of identity between art and technology. In the future, it should be discussed how the limit of the media which can be enjoyed in the field of art can be set as a standard.

Re-ranking the Results from Two Image Retrieval System in Cooperative Manner (두 영상검색 시스템의 협력적 이용을 통한 재순위화)

  • Hwang, Joong-Won;Kim, Hyunwoo;Kim, Junmo
    • Journal of the Korean Institute of Intelligent Systems
    • /
    • v.24 no.1
    • /
    • pp.7-15
    • /
    • 2014
  • Image retrieval has become a huge part of computer vision and data mining. Although commercial image retrieval systems such as Google show great performances, the improvement on the performances are constantly on demand because of the rapid growth of data on web space. To satisfy the demand, many re-ranking methods, which enhance the performances by reordering retrieved results with independent algorithms, has been proposed. Conventional re-ranking algorithms are based on the assumption that visual patterns are not used on initial image retrieval stage. However, image search engines in present have begun to use the visual and the assumption is required to be reconsidered. Also, though it is possible to suspect that integration of multiple retrieval systems can improve the overall performance, the research on the topic has not been done sufficiently. In this paper, we made the condition that other manner than cooperation cannot improve the ranking result. We evaluate the algorithm on toy model and show that propose module can improve the retrieval results.

Sampling-based Approach for Seismic Probabilistic Risk Assessment (지진 확률론적 리스크 평가를 위한 샘플링기반 접근법)

  • Kwag, Shinyoung;Eem, Seunghyun;Park, Junhee;Choi, In-Kil
    • Journal of the Computational Structural Engineering Institute of Korea
    • /
    • v.33 no.2
    • /
    • pp.129-136
    • /
    • 2020
  • In this study, we develop a sampling-based seismic probabilistic risk assessment (SPRA) quantification technique that can accurately consider a partially dependent condition of component seismic fragility information. Specifically, the SPRA quantification method is proposed by combining the advantages of two representative methodologies: EPRI seismic fragility and JAERI seismic fragility input-based quantification. The most important feature of the proposed method is that it performs a SPRA using a sampling technique by transforming the EPRI seismic fragility input into JAERI seismic fragility input. When the proposed sampling-based approach was applied to an example of simple system and to a SPRA problem of a nuclear power plant, it was observed that the proposed method yields approximately similar system seismic fragility and seismic risk results as those of the exact solution. Therefore, it is believed that the approach proposed in this study can be used as a useful tool for accurately assessing seismic risks, considering the partial seismic dependence among the components; the existing SPRA method cannot handle such partial dependencies.

A Study on the Effects of the Cooperative Philosophy between SMEs to the Cooperative Activities and Performance (중소기업 간 협력철학이 협력활동과 협력성과에 미치는 영향에 관한 연구)

  • Lee, Jae-Sun
    • Journal of the Korea Convergence Society
    • /
    • v.8 no.9
    • /
    • pp.301-309
    • /
    • 2017
  • This study analyzed the effect of cooperation activities among SMEs. In order to study empirical analysis, we classified the types of cooperation into four dimensions: technology cooperation, human resource cooperation, sales cooperation and financial cooperation. Review the role of the collaborative philosophy as a predictor. This study also analyzed the relationship between cooperation philosophy, cooperation activities and performance. The results of this study are as follows: First, the result of path analysis between cooperation philosophy and cooperation activities shows that cooperation philosophy has an important influence on technical cooperation, human resource cooperation, sales cooperation and financial cooperation. Second, the results of the relationship between cooperation activities and achievements, technical cooperation, human resource cooperation, and sales cooperation have an important influence on cooperation performance. The meaning of this study is as follows. Analyze empirical tests using the PSBP model from a partnership perspective. We are trying to verify the relationship with SMEs. Therefore, we can suggest a beneficial implication to explain the importance of cooperation activities between SMEs. Also, SME business units have a problem with technical information leakage when they form partnerships, but in order to overcome this problem, we can use cooperative philosophies and avoid negative views.

Real-time and Parallel Semantic Translation Technique for Large-Scale Streaming Sensor Data in an IoT Environment (사물인터넷 환경에서 대용량 스트리밍 센서데이터의 실시간·병렬 시맨틱 변환 기법)

  • Kwon, SoonHyun;Park, Dongwan;Bang, Hyochan;Park, Youngtack
    • Journal of KIISE
    • /
    • v.42 no.1
    • /
    • pp.54-67
    • /
    • 2015
  • Nowadays, studies on the fusion of Semantic Web technologies are being carried out to promote the interoperability and value of sensor data in an IoT environment. To accomplish this, the semantic translation of sensor data is essential for convergence with service domain knowledge. The existing semantic translation technique, however, involves translating from static metadata into semantic data(RDF), and cannot properly process real-time and large-scale features in an IoT environment. Therefore, in this paper, we propose a technique for translating large-scale streaming sensor data generated in an IoT environment into semantic data, using real-time and parallel processing. In this technique, we define rules for semantic translation and store them in the semantic repository. The sensor data is translated in real-time with parallel processing using these pre-defined rules and an ontology-based semantic model. To improve the performance, we use the Apache Storm, a real-time big data analysis framework for parallel processing. The proposed technique was subjected to performance testing with the AWS observation data of the Meteorological Administration, which are large-scale streaming sensor data for demonstration purposes.

A Study on the Efficiency Analysis for the Automotive Parts Manufacturer Using Data Envelopment Analysis (DEA를 활용한 자동차부품 기업의 효율성 평가에 관한 연구)

  • Cho, Hyung-Kook;Lee, Cheol-Gyu;Yoo, Wang-Jin
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.15 no.2
    • /
    • pp.609-615
    • /
    • 2014
  • Due to the recent global recession, the car industry demand levels have plummeted which led to a crisis in the automotive parts industry for the first time in history. Since the fourth quarter of 2008, the automotive parts manufacturers in America have faced a record loss and those in Japan and Europe who also had a strong track record are facing a weak economy. In addition, the domestic automotive parts industry is also affected by the global economic crisis. This research is that the relative efficiency analysis utilizing the DEA has done on the object of 25 small and medium-sized automotive parts manufacturers publicly listed, As the efficiency analysis result 6 of 25 manufacturers are efficient in CCR model and 12 manufactures have shown efficiency in BCC model, the efficiency analysis in consideration of the manufacturer size. The manufacturers with efficiency 1 in 25 manufacturers are DMU 1, 5, 7, 10, 18, 24 and the relatively benchmarking objects in other manufactures are DMU 1, 10, 24, Based on the results of this research, a direction to the domestic automotive parts manufacturers as well as a significant information will be provided in managing the companies in the future by the improvement of management efficiency through the practical efficiency analysis.

The Change in Binocular Function and Sensory Anomaly After vision Training on Intermittent Exotropia and Recurrent Intermittent Exotropia Patients After Surgical Correction (간헐성 외사시 및 외사시 재발환자에 대한 시기능 훈련 후 양안시 기능 및 감각이상 변화)

  • Lee, Chang-Seon;Kim, Jong-Ki;Shin, Jeong-Hoon;Kim, Dae-Nyoun;Lee, Hyun Mee;Kim, Ki-Hong
    • Journal of Korean Ophthalmic Optics Society
    • /
    • v.16 no.3
    • /
    • pp.345-350
    • /
    • 2011
  • Purpose: This was a study of the effects of the vision training on binocular function and sensory anomaly for intermittent exotropia and recurrent intermittent exotropia patients. Mehtods: The change was examined weekly at the clinic during the 8 week vision training. The sample group of 17 patients, intermittent exotropia and recurrent intermittent exotropia patients without amblyopia, were chosen from the patients with the short and the long-distance deviation angle p=0.558 and p=0.338, and also greater than 10${\Delta}$, respectively. Results: The longdistance deviation angle was reduced by 67.9(${\pm}$32.7)%, and the short-distance deviation angle by 75.4(${\pm}$32.9)% after the vision training. There is an improvement on the binocular function and sensory anomaly according to the fusion reverse and Worth 4 dot tests. Conclusions: This study shows that the vision training is effective for phoria, function and sensory anomalyon of the intermittent extropia and recurrent intermittent exotropia patients.

Research trends to analysis of 『Muyedobotongji』 (『무예도보통지』 연구동향 분석)

  • Kwak, Nak-hyun
    • (The)Study of the Eastern Classic
    • /
    • no.55
    • /
    • pp.193-221
    • /
    • 2014
  • This study aims to analyze trends of advanced research of "Muyedobotongji". The conclusions are as following in these. First, the number of theses related with "Muyedobotongji" is 47 in total including 29 master's theses and 18 doctor's theses. The sports science comprises the largest proportion of study including 23 master's degree and 12 doctor's degree. Besides sports science field, "Muyedobotongji" is analyzed in various study fields such as library and information, engineering, science of art and culture contents. In master's theses, They focused on practical ways of "Muyedobotongji". But "Muyedobotongji" is conducted by perspective of the humanities in doctor's theses. Second, There are 72 theses related with "Muyedobotongji" in scientific journal. Regarding these in detail, there are 35 theses in sports science, 12 theses in Korean history, 7 theses in martial arts, 5 theses in dance studies, 4 these in Korean studies, 2 theses in Chinse studies, 2 theses in art history, 1 these in Japanese literature and 1 thesis in military science. This fact helps us understand "Muyedobotongji" is studied actively in sports science field. Third, the future research directions of "Muyedobotongji" Should be considered in 3 categories. first, it needs to do interdisciplinary fusion research. Through this, it can complement insufficient parts of existing researches. Second, it needs to make standard Key words. The unified Key words are able to use communicating in different field of scientific journals without confusing. Third It needs to build data bases which are applied to martial art areas. It can provide chances for both Korean martial arts and "Muyedobotongji" to be practiced in culture contents.