• International Journal of Fuzzy Logic and Intelligent Systems
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• v.13 no.4
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• pp.298-306
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• 2013

Recent years have witnessed a growing interest in the fields of video surveillance and mobile object tracking. This paper proposes a mobile object tracking algorithm. First, several parameters such as object window, object area, and expansion-contraction (E-C) parameter are defined. Then, a modified E-C algorithm for multiple-object tracking is presented. The proposed algorithm tracks moving objects by expansion and contraction of the object window. In addition, it includes methods for updating the background image and avoiding occlusion of the target image. The validity of the proposed algorithm is verified experimentally. For example, the first scenario traces the path of two people walking in opposite directions in a hallway, whereas the second one is conducted to track three people in a group of four walkers.

• Journal of the Korean Institute of Telematics and Electronics B
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• v.32B no.11
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• pp.1424-1433
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• 1995

The edge detection process serves to simplify the analysis of images by drastically reducing the amount of data to be processed, while preserving useful structural informations about object boundaries. At first, this paper proposes an edge detection algorithm to reduce the amount of computation. The gradients of pixels are calculated by using first order differential equations on the pixels with even rows and even columns or odd rows and odd columns, and they are compared with a threshold to decide edges. As a result, the computational complexity is reduced to one third or one forth compared with the provious ones. To enhance the accuracy of edge detection, a method with the adaptive threshold for each pixel window which is calculated by using characteristic values is proposed. In this case, the performance can be improved since the threshold is calculated properly for each window according to the local characteristics of corresponding window.

• Fashion & Textile Research Journal
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• v.19 no.5
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• pp.535-546
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• 2017

This study considers direction types and formative characteristics by analyzing natural objets in contemporary fashion window display. The research methods are both literature review and content analysis based on images of contemporary fashion window display. The conclusions of this study are as follows. First, the direction types of natural objets in contemporary fashion window display expand objective outlines by maximizing the morphological form of objects. Second, a rhythmic sense expressed through a gradual repetition of patterns or a sequential arrangement of natural objects. Third, it represents a reversal of image accomplished through a modification of material on the natural objects. Fourth, a new space is created by transforming two dimensional forms of natural objects. The first formative characteristic of natural objects in contemporary fashion window display is exaggeration. This is expressed through either the expansion of the external volume, the collapsed form of natural objects, or the distortion of external colors. Second, it is a dynamics. This makes it possible to recall the dynamic image of the integration of the observer with a priori thinking by systematically sequencing objects or inducing a specific motion. Third, it is an abstraction. This provides an opportunity for the observer to find in a natural beauty by exchanging physical form or reinterpreting characteristic points. Fourth, it concerns eclecticism characteristic that objects created through the mutual fusion of heterogeneous elements indicates an aesthetic inspiration in a limited space by diverting conventional thinking toward natural objects with expansion of consciousness on formative arts.

• Korean Institute of Interior Design Journal
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• v.20 no.4
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• pp.109-117
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• 2011

This study identified characteristics of Christmas window display, which is one of visual marketing methods used in department stores, using cases of department stores in Seoul and the New York and to compare the characteristics between Seoul and New York department stores in order to extract the directions and components of window display in each country. Based on the photographs of Christmas window display at the sampled Seoul and New York department stores, we analyzed the window display of each department store. From the results of analysis were drawn conclusions as follows. First, as to the direction of Christmas window display design in Seoul and New York department stores, window display was designed using various themes according to the characteristic of each department store. In case of Seoul department stores, however, specific luxury brands linked to the characteristics of the department stores displayed their products separately, but in New York department stores, various Christmas themes, images related to the department stores, and products were displayed together according to the characteristic of the department stores. Second, among display components, the formative structure and the frequency of mannequin use were different between Seoul and New York department stores. Various formative structures and diverse mannequins used in the window display of New York department stores played the role of stamping the brand image of each department store and exhibiting various designs through window display.

• Korean Institute of Interior Design Journal
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• no.38
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• pp.233-240
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• 2003

The purpose of this study was to find the coordination trend of the Image of the color and object from the department show-window display locating in the kangnam area. The result of this study were summarized as following: 1) Show window display determinating the first image of department-store marketing service, playing the role of visual marketing provides the valuable impressions with shoppers in the times of sensibility, 2) In contemporary recognition of "Design is namely culture", show window display proceeds on the direction of concrete and practical presentation of merchandise as many customers are pursuing the high graded luxury brands while their life styles change. 3) Main concept is represented by the coordinated fashion goods on the mannequin or the body and the main theme is displayed variously in the circumferential area or on the articles with the abstract and concrete objects of diverse forms of dominant color and accent color conveying the seasonal theme precisely. 4) The compositive element of color Is the decisive factor of the visual sense of space In the coordination-trends of show window display specially representing the seasonal theme or the intentional messages and conduces to the psychological and mental desire in human and the circumstances, 5) Following the color, the compositive element of object presents the concrete image of theme or the abstract and geometrical sense of space besides the visual sense of space and shows the proportionality and the activity in displaying the show window space.dow space.

• Korean Institute of Interior Design Journal
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• no.13
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• pp.11-17
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• 1997

The purpose of this study is to research the phychological determinant factors of window design and the relationshiops between preferences over those factors. Field surveys and questionnaires, focused on residents in apartment houses, were used to research the residents' preferences. Sunlight inflow, view privacy, and spaciousness can be assumed as major environmental psychological factors related to windows. But some difficulties in applying all those factors' requirements in a window design lie in the fundamental mutual contradiction such as providing both optimum privacy and openness. Those difficulties can be solved to a certain degree through the process of comparison between those factors based on residents' preference tendency in a specific space. Other results of this research are as follows: 1) The preference research shows that sunlight inflow stands first in living room, and followed by view, privacy, and spaciousness: privacy ranks first in bedroom and followed by sunlight inflow, view, and spaciousness: the elderly over sixties prefer the sunlight inflow first both in the living room and the bedroom. 2) Satisfaction degrees on sunlight inflow, privacy, spaciousness are increasing along with the dwelling height, while the view is not showing any relationship with the dwelling height. 3) Natural elements, as the object of view, are preferred to artificial elements such as buildings and roads. 4) Windowsill heights in bedrooms have relevance to the state of satisfaction with sunlight inflow, privacy, and view, while they show no relationship with spaciousness.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.24 no.8A
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• pp.1218-1226
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• 1999

In decoding the turbo codes, the sliding window BCJR algorthm, derived from the BCJR algorithm, permits a continuous decoding of the coded sequence without requiring trellis fermination of the constituent codes and uses reduced memory span. However, the number of computation required is greater than that of BCJR algorithm and no study on the effect of the window length has been reported. In this paper, we propose an eddicient sliding window type scheme which maintains the advantages of the conventional sliding window algorithm, reduces its computational burdens, and improves is BER performance. A guideline is first presented to determine the proper window length and then a computationally efficient sliding window BCJR algorithm is obtained by allowing the window to be forwarded in multi-step. Simulation results show that the proposed scheme outperforms the conventional sliding window BCJR algorithm with reduced complexity. It gains 0.1dB SNR improvements over the conventional method for the constraint length 3 and BER $10^{-4}$

• Journal of Applied Reliability
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• v.11 no.1
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• pp.1-15
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• 2011

Automobile markets are so fierce in the world market that every major manufacturer assure the buyer of the car by give a provocative warranty plan for their cars. For instance Hyundai motor company offer 10 years and 100,000 miles of warranty whichever comes first. But in order for this effort to be successful every critical component such as window switch has to be proven to be reliable in an adverse environment. Therefore, in this article reliability assessment criteria for window switch are established in terms of basic performance test, environment test and life test.

• Journal of the Korean Institute of Telematics and Electronics
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• v.27 no.1
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• pp.112-119
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• 1990

Two adaptation procedures are proposed for image restoration, in which the window shapes of OS filters are changed according to the order statistics of signal. In the first procedure, the 2-dimensional window is the union of the 1-dimensional subwindows whose sizes are fixed. In the second procedure, the 2-dimensional window is the union of the 1-dimensional subwindows whose sizes are variable. Compared with existing procedures, our adaptation procedures using order statistics are computationally efficient. Simulation results show that the filters with adaptive window shapes have good performance for the preservation of edges and details of image, and the noise suppression.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2017.11a
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• pp.203-204
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• 2017

In case of developing a guide-rail type window cleaning robot, only the first prototype has been developed. In this study, it was considered that the size and the load of the window cleaning robot was not optimized, and through the structural analysis of the self-weight of the window cleaning robot, the stress concentration area was derived and the concentrated stress was quantified. Analysis showed that the upper rail shaft had a bending stress of 9.964Mpa and the bolt had a shear stress of 19.544Mpa. The results of this study will be used as basic data for designing future prototypes.