• 대한교통학회지
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• 제12권1호
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• pp.97-116
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• 1994

Today advanced traffic management systems are required because of a high increase in traffic demand. Accordingly, the objective of this study is to take advantage of image processing systems and present image processing methods available for collection of the data on traffic characteristics, and then to investigate the possibility of traffic flow analysis by means of comparison and analysis of measured traffic flow. Data were collected at two places of Daegu city and Kyongbu expressway by using VTR. Rear view (down stream) and frontal view (up stream) methods were employed to compare and analyze traffic characteristics including traffic volume, speed, time-headway, time-occupancy, and vehicle-length, by analysis of measured traffic flow and image processing respectively. Judging from the results obtained by this study, image processing techniques are sufficient for the analysis of traffic volume, but a frame grabber equipped with high speed processor is necessary as well, with low level system judged to be sufficient for traffic volume analysis.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 제36회 하계학술대회 논문집 D
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• pp.2821-2823
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• 2005

When we deal with the image data through camera lens, much works are necessary for removing image distortions and obtaining accurate informations from the raw data. However, the calibration process is very complicated and requires many trials and errors. In this paper, 3 new approach to image processing is presented by developing a H/W vision system with a tracking camera. Using motor control with encoders the proposed tracking method tells us exact displacements of a moving object. Therefore this method does not require any calibration process for pin cusion. Owing to the mobility one camera covers wide ranges and, by lowering its height, the camera also obtains high resolution of the image. We first introduce the structure of the motion analysis system. Then the construced vision system is investigated by some experiments.

• 인터넷정보학회논문지
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• 제13권3호
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• pp.17-22
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• 2012

본 논문에서는 APD(Avalanche photodiode)센서와 LED조명 및 광섬유 도파관(Fiber optic waveguide)를 이용한 광전((光電, Photoelectric) 영상 검출시스템을 제안한다. 제안한 핀홀(Pinhole) 검출시스템은 100미크론의 핀홀을 1,000mpm(meter per minute)의 속도로 검출할 수 있다. 아울러, 영상검출 알고리듬을 통해 검출된 핀홀의 위치와 크기 별로 분류할 수 있는 SQL기반의 DB결과를 분석함으로서 영상검출시스템의 검출성능이 개선되었다.

• 한국축산시설환경학회지
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• 제6권1호
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• pp.23-30
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• 2000

A automated noncontact weight system for pigs consisted of a CCD-type video camera and 10 photo sensors connected to a computer. In the experiment 20 pigs(Large Yorkshire $\times$ Landrace breed) weighing from 95kg to 115kg were used. Pig's original image data was transformed to a binary image an image excluding head and tail portion from the whole binary image and the area of pig was calculated. Then pig's volume was calculated by multiplying the area by the body hight measured with photo sensors. The correlation equation between the above volume(x) and pig's weight was y=0.0007 x -9.2152($R^2$=0.9965) Performance of a automated noncontact weighing system for pigs was tested with this equation. The results showed $\pm$0.65kg average error and 1.63kg maximum error. It was concluded that performance of a automated noncontact weighing system is excellent.

• 산업경영시스템학회지
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• 제18권35호
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• pp.1-8
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• 1995

Automatic inspection system software for display image characteristic of CRT is developed. There are two major contributions of this software development. One is that the data from measuring equipments which was usually collected manually is automatically collected through RS-232C port and is saved in computer, then, trend analysis graph and final reports are generated. The other is that evauation of characteristic of electron gun was automatically processed by CCD camera and image processing technique. The system is developed under MS-Windows environment utilizing Borland C++4.0 Compiler and DT 3852-8 image processor board. This system can save the time and man power to measure and to anayze the image characteristics relative to current method.

• Computers and Concrete
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• 제14권3호
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• pp.315-325
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• 2014

Concrete is an important material in most of civil constructions. Many properties of concrete can be determined through analysis of concrete images. Image segmentation is the first step for the most of these analyses. An automated system for segmentation of concrete images into microstructures using texture analysis is proposed. The performance of five different classifiers has been evaluated and the results show that using an Artificial Neural Network classifier is the best choice for an automatic image segmentation of concrete.

• 한국의류산업학회지
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• 제4권3호
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• pp.284-288
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• 2002

In this research, a new quantitative fabric drape evaluation system has been developed using image processing technology. The purpose of this research is to get the more detailed information of fabric drapability quantitatively from digital images captured with a digital camera generally commercialized. The shape parameters of a 3-dimensional geometric drape model were defined as the number of nodes, frequency and amplitude. Also, various statistical information of drape shapes can be obtained using image processing technology and frequency analysis as well as traditional drape coefficients. Hardware system to capture drape images is simply composed of three parts including a digital USB (Universal Serial Bus) camera, a frame cover and a stand for camera to attach to traditional drape tester. The evaluation software coded with the MS Visual C++ is operated under the MS windows 9x above.

• 대한가정학회지
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• 제46권5호
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• pp.111-121
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• 2008

The purpose of this study is to analyze the relationships between sense of values and clothing image of middle aged women. For this purpose, the subjects of 300 adult women from in their 40's to 50's, living in Daegu area were sampled out by convenient sampling method. The result of this analysis are as follows. 1)a factor analysis identified six different types of sense of value: materialistic, self-respect, relationship-conscious, sensation-conscious, practical, and people-conscious. 2)six different types of clothing image were identified: classy, bold, plain, feminine, casual, and peculiar. 3)the results of multiple regression analysis found that sense of values affected clothing image of middle aged women. This meant that significant relationships existed among these variables and there was a causal relationship between sense of values and clothing image.

• 한국인공지능학회지
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• 제9권2호
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• pp.23-28
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• 2021

In this paper, we studied a system that can efficiently build security management for single-person households using Arduino, ESP32-CAM and PIR sensors, and proposed an Android app with an internet connection. The ESP32-CAM is an Arduino compatible board that supports both Wi-Fi, Bluetooth, and cameras using an ESP32-based processor. The PCB on-board antenna may be used independently, and the sensitivity may be expanded by separately connecting the external antenna. This system has implemented an Arduino-based Unauthorized intrusion system that can significantly help prevent crimes in single-person households using the combination of PIR sensors, Arduino devices, and smartphones. unauthorized intrusion system, showing the connection between Arduino Uno and ESP32-CAM and with smartphone applications. Recently, if daily quarantine is underway around us and it is necessary to verify the identity of visitors, it is expected that it will help maintain a safety net if this system is applied for the purpose of facial recognition and restricting some access. This technology is widely used to verify that the characters in the two images entered into the system are the same or to determine who the characters in the images are most similar to among those previously stored in the internal database. There is an advantage that it may be implemented in a low-power, low-cost environment through image recognition, comparison, feature point extraction, and comparison.

• 시큐리티연구
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• 제61호
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• pp.163-179
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• 2019

본 연구의 목적은 경비안전시스템 이용자들의 서비스품질이 기업이미지와 고객만족도에 미치는 영향을 분석하는데 있다. 이를 실증분석을 통해 확인하고자 전국적으로 이용자 200여명을 대상으로 2019년 5월 2일부터 6월 12일까지 약 40일 동안 설문조사를 실시하였다. 설문내용은 "서비스품질, 기업이미지, 고객만족도"로 구성하였다. 실증분석은 타당성과 중요도, 신뢰도, 연관성 분석을 중심으로 실행하였다. 설문조사를 통하여 탐색적요인 및 구조방정식 등을 추출하고자 SPSS WIN 18.0을 사용하였다. 연구 결과 경비안전시스템 이용자들은 서비스품질이 좋을수록 기업이미지가 좋아지고, 기업이미지가 좋을수록 고객만족도가 높아지는 것으로 나타났다. 또한 서비스품질이 좋을수록 고객만족도가 높아질 것으로 제시하였다. 따라서 각 경비안전시스템 업체들은 고객만족도 향상을 위해 서비스품질을 꾸준히 향상시켜 나가야 할 것이다.