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Automatic Exposure Time Control of WDR Camera Adapting Neural Network (뉴럴 네트워크를 이용한 WDR 카메라 자동 노출 제어)

  • Yun, Se-Hwan;Kim, Jin-Hun
    • Proceedings of the KIEE Conference
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    • 2004.11c
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    • pp.364-366
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    • 2004
  • WDR(Wide Dynamic Range) camera has been recently introduced to provide good detailed information for the extremely dark or white area. The double shuttering camera acquires two pictures with different exposure time for the same scenes so that each image has its unique information as for the bright/dark area. Those images are combined internally to produce an image with enough details. This paper proposes a NN based method to control the exposure time of the WDR camera. Our goal is to develop a method to automatically control the exposure time like human decision. A neural model is trained to determine to increase/decrease shutter time for the given situation. The ability to adapt to unknown situation is shown for the sample cases.

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Design Originality of Christian Dior's Haute Couture (Christian Dior 오뜨꾸띄르의 디자인 오리지날리티)

  • 공미선;채금석
    • Journal of the Korean Society of Costume
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    • v.53 no.2
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    • pp.57-70
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    • 2003
  • Modern Haute Couture represents artistic views through its image. symbol, and originality. Haute Couture's original art has been kept as a design technics which is the fusion of timely, original Maison's concept, plastic beauty as designer's personality. Christian Dior's maison continued by Yves Saint Laurent, Marc Bohan, Gianfranco Ferr'e and John Galliano who emphasize elegant image which has avant-garde trends came from post modernism. Christian Dior Haute Couture's design which can be symbolized by the feature of timely variation and new feeling of continuing designers has the following originalities. 1. Christian Dior Haute Couture's design has been affected by the timely art-trends. 2. Christian Dior Haute Couture's design concept is represented as Nobly Chic Elegance. Feminine Elegance. Sophisticately Chic Elegance, Fantastically humourous Elegance therfore, the traditional concept of Elegance are maintained. 3. Christian Dior Haute Couture's design technic not only emphasizes the details of collars and up side of clothes or trimming but also persuits the total beauty of balanceness with the harmony of the evenness between other factors.

Current and Future Technologies for a Gastrointestinal Endoscopy (소화기 내시경의 기술 현황과 전망)

  • Chee, Young-Joon;Woo, Jih-Wan
    • Journal of Biomedical Engineering Research
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    • v.31 no.5
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    • pp.335-343
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    • 2010
  • This article presents a review of technologies for an endoscope. The classification according to the clinical applications and the imaging modalities are summarized. The major parts are focused on describing the gastrointestinal endoscope's structures and mechanisms. The details of the image enhanced endoscopic techniques, such as NBI (narrow band imaging), OCT (optical coherence tomography), and EUS (endoscopic ultrasound), are also explained. Finally, the trend of NOTES (natural orifice transluminal endoscopic surgery) which is new fusion technology in the field of endoscopic diagnosis and surgery is introduced.

The Study on Removing Random-valued Impulse Noise

  • Yinyu, Gao;Kim, Nam-Ho
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2011.05a
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    • pp.333-335
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    • 2011
  • In the transmitting process of image processing system, images always be corrupted by impulse noise, especially random-valued impulse noise. So removing the random-valued impulse noise is very important, but it is also one of the most difficult case in image processing. The most famous method is the standard median filter, but at edge, the filter has a special feature which has a tendency to decrease the preserve. As a result, we proposed a filter that detection random-valued impulse noise firstly, next to use efficient method to remove the noise and preserve the details. And through the simulation, we compared with the algorithms and indicated that proposed method significant improvement over many other existing algorithms.

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A Study on Using the Cutting Lines in Modern Fashion Design (현대 패션의 절개선 활용에 관한 연구)

  • Lee, Joung-Suk
    • The Korean Fashion and Textile Research Journal
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    • v.9 no.2
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    • pp.151-156
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    • 2007
  • Slashes, deprived from the Crusaders' military uniforms, take their places among the fashion terms in modern fashion, and they are represented with some techniques such as fraying fabrics or making holes. Slashes are also used in various ways across all the fashion areas including clothing to accessaries. Slashes, which were once used to represent a solid body and to make a body move suitably, are used not only to express the formative of clothing but also to allow wearing sensations and functionality to wearers depending on their daily lives and the movements of their activities in modern fashion design. Optical illusions of fashion, image variabilities, functionality and ornamentation, and design principles, which were once represented with materials, colors, and details mainly used in fashion designs, are represented using slashes in modern fashion.

A Study on the Severe-Ornament of Wooden Pagodas in Silla Period - Focused on the study of the literature - (신라시대 목탑의 장엄조식(莊嚴彫飾)에 관한 연구 - 문헌을 중심으로 -)

  • Kim, Cheong-Soo
    • Journal of architectural history
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    • v.14 no.1 s.41
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    • pp.21-39
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    • 2005
  • This study is to examine the Severe-Ornament (Vyuha :Sanskrit) of wooden pagodas in Shilla period in order to assume a detailed shape of wooden pagodas called the palace style, the multi-story style, the towered namsion style, that were built at the temples in Gyeongju during Shilla period. The Severe-Ornament had been used traditionally by installing a Buddhist image, Guardians, Sarira and by printing a color. The other hand, The roof tiles and tiles were annexed to the Severe-Ornament so as to enhance the value of the wooden pagodas. The Vyuha had been used not only to install a highly valued Buddhist image in the wooden pagodas but also to represent an important part of ritual art of Silla period. Therefore, it was possible to find out a variety of details of the wooden pagodas in Shilla period.

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A Study about Implementation of Object Tracking on FPGA (물체추적을 위한 FPGA 구현에 대한 연구)

  • Yang, Chan-Woo;Kim, Dong-Hun;Shin, Yun-Soo;Ko, Kwang-Cheol
    • Proceedings of the KIEE Conference
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    • 2002.11c
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    • pp.525-528
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    • 2002
  • This study describes an implementation of object tracking algorithm on FPGA. The global system detect the zone there is more motion in, attending to the generated optical flow, and centers its attention to it to improve the details In this case, To obtain image in Camera, Image aquisition board make use of SAA7113 Video Input processor and algorithm is applied to motion estimation and difference picture. Also, This work can be applied kalman filter to reliability of tracking.

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Electron Tomography and Synapse Study

  • Kim, Hyun-Wook;Kim, Dasom;Rhyu, Im Joo
    • Applied Microscopy
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    • v.44 no.3
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    • pp.83-87
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    • 2014
  • Electron tomography (ET) is a useful tool to investigate three-dimensional details based on virtual slices of relative thick specimen, and it requires complicated procedures consisted of image acquisition steps and image processing steps with computer program. Although the complicated step, this technique allows us to overcome some limitations of conventional transmission electron microscopy: (1) overlapping of information in the ultrathin section covering from 30 nm to 90 nm when we observe very small structures, (2) fragmentation of the information when we study larger structures over 100 nm. There are remarkable biological findings with ET, especially in the field of neuroscience, although it is not popular yet. Understanding of behavior of synaptic vesicle, active zone, pooling and fusion in the presynaptic terminal have been enhanced thanks to ET. Some sophisticated models of postsynaptic density with ET and immune labeling are introduced recently. In this review, we introduce principles, practical steps of ET and some recent researches in synapse biology.

A Tone Mapping Algorithm Based on Multi-scale Decomposition

  • Li, Weizhong;Yi, Benshun;Huang, Taiqi;Yao, Weiqing;Peng, Hong
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.10 no.4
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    • pp.1846-1863
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    • 2016
  • High dynamic range (HDR) images can present the perfect real scene and rich color information. A commonly encountered problem in practical applications is how to well visualize HDR images on standard display devices. In this paper, we propose a multi-scale decomposition method using guided filtering for HDR image tone mapping. In our algorithm, HDR images are directly decomposed into three layers:base layer, coarse scale detail layer and fine detail layer. We propose an effective function to compress the base layer and the coarse scale detail layer. An adaptive function is also proposed for detail adjustment. Experimental results show that the proposed algorithm effectively accomplishes dynamic range compression and maintains good global contrast as well as local contrast. It also presents more image details and keeps high color saturation.

A New Efficient Impulse Noise Detection based on Rank Estimation

  • Oh, Jin-Sung;Kim, You-Nam
    • Journal of the Institute of Convergence Signal Processing
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    • v.9 no.3
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    • pp.173-178
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    • 2008
  • In this paper, we present a new impulsive noise detection technique. To remove the impulse noise without detail loss, only corrupted pixels must be filtered. In order to identify the corrupted pixels, a new impulse detector based on rank and value estimations of the current pixel is proposed. Based on the rank and value estimations of the current pixel, the new proposed method provides excellent statistics for detecting an impulse noise while reducing the probability of detecting image details as impulses. The proposed detection is efficient and can be used with any noise removal filter. Simulation results show that the proposed method significantly outperforms many other well-known detection techniques in terms of image restoration and noise detection.

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