• Title/Summary/Keyword: webcam

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OBSERVATION ERROR OF TIME-LAPSED PHOTOS IN CONSTRUCTION OPERATION MONITORING

  • Jiwon Choi;Julian Kang
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.1042-1047
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    • 2005
  • A web-based camera (webcam) is expected to enhance construction operation monitoring. However, webcams are often installed outside a building because their mobility is limited by cable wiring, which makes it difficult to monitor construction operations inside the building. If a webcam is integrated with emerging wireless communication technologies, construction professionals may be able to monitor interior construction operations using webcams without getting network cables wired on a congested and dynamic construction job site. However, one may concern that wireless communication may not be fast enough to transport all webcam images seamlessly. This paper presents an investigation as to the observation error of webcam images when a limited amount of images are delivered.

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Implementation of a Pet Care Robot Based on Webcam and Smartphone and its Power Management (웹캠과 스마트폰 기반의 반려 동물 돌봄 로봇의 구현 및 전원 관리)

  • Lee, Yoon-Ho;Jeon, Joo-Hyeon;Lee, Na-Eun;Jang, Jea-Moon;Yu, Shin;Joo, Moon G.
    • IEMEK Journal of Embedded Systems and Applications
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    • v.16 no.1
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    • pp.29-34
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    • 2021
  • We developed a pet care robot that can be controlled outdoors. Through the smartphone application, the pet owners can watch the situation in the house and manipulate the robot to make their pet happy. The video data in the house is transmitted to the application through the webcam installed at the house. The robot can not only perform user's command but also do six basic macro action. The obstacle avoidance function using the current sensor can be activated if the user want to use. When the robot hits to something, it moves back and rotates by arbitrary angle, and then moves forward.

Wireless Webcam Implementation and Application Utilizing Wireless USB Technology (무선 USB 기술을 활용한 무선웹캠 구현 및 적용방법)

  • Chae, Jung-Sik;Ban, Tae-Hak;Jung, Hoe-Kyung
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.18 no.3
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    • pp.569-575
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    • 2014
  • These days as smart TVs or android set top boxes have come into wide use, VoIP(Voice over Internet Protocol) services such as the Skype which can beused on computer system, can be also accessed by smart TVs or set top boxes. and the various kinds of distance learning programs have been developed on smart TVs or set top boxes. but when users have utilized a webcam with smart TVs or set top boxes, users have to go in front of smart TVs or set top boxes In this research paper, the new technology can be solved the problem of webcam use according to chaned environment. This tech is related with the wireless webcam one which can be applicable to open spaces such as living room with some distance between user and smart TV. There are few problems in long distance the test results show high reliability in living room with some distance.

The Virtual Model House System using Modeling-based Eyetracking (모델링 기반 시선추적을 이용한 가상모델하우스 시스템)

  • Lee, Dong-Jin;Lee, Ki-Young
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.10 no.5
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    • pp.223-227
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    • 2010
  • Since the most of existing virtual model house used non-immersive type virtual reality technology, it was made to control using direct input type device such as keyboard and mouse. But in this paper realized not only direct data entry method but also indirect data entry method using eyetracking technology through universal webcam for virtual model house based upon modeling. In this paper showed the position of pointer controlled according to the relative movement of pupils or the part of function related to the equipment entry called by comparing the value of gray after extracting the area of pupil in the user' video data received from webcam. Such a method provided the convenience of navigation and interface to the user.

Real-time Notification System of Webcam Monitor for Preventing Computer Vision Syndrome (컴퓨터시각증후군 예방을 위한 웹캠모니터의 실시간알림 시스템)

  • Ha, Sangwon;Yoo, Dohyeob;Moon, Mikyeong
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2015.05a
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    • pp.754-755
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    • 2015
  • Computer Vision Syndrome(CVS) is a temporary condition resulting from focusing the eyes on a computer display for protracted, uninterrupted periods of time. To prevent CVS, you have to blink your eyes frequently, also have to keep distances from monitor. In this paper, real-time notification system for preventing CVS by checking user's distance between eyes and monitor and user's frequency of nictation in real time through monitor webcam is described.

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HP-JK-based autonomous driving technique (HP-JK 기반의 자율주행 기법)

  • Kim, Yeon wook;Park, Seong Hun;Jun, Da Bin;Han, Chang Hyun;Choi, JaeSung
    • Proceedings of the Korea Information Processing Society Conference
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    • 2017.11a
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    • pp.1244-1245
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    • 2017
  • Using a small computer called Raspberry Pie, the webcam is interlocked with the webcam to detect the desired color using hsv and find the representative line using the hough transform in the detected color. Another new line is extracted and the coordinates where the lines meet are called the vanishing point and we want to make a system that autonomously travels through the vanishing point.

Development of Half-Mirror Interface System and Its Application for Ubiquitous Environment (유비쿼터스 환경을 위한 하프미러형 인터페이스 시스템 개발과 응용)

  • Kwon Young-Joon;Kim Dae-Jin;Lee Sang-Wan;Bien Zeungnam
    • Journal of Institute of Control, Robotics and Systems
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    • v.11 no.12
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    • pp.1020-1026
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    • 2005
  • In the era of ubiquitous computing, human-friendly man-machine interface is getting more attention due to its possibility to offer convenient services. For this, in this paper, we introduce a 'Half-Mirror Interface System (HMIS)' as a novel type of human-friendly man-machine interfaces. Basically, HMIS consists of half-mirror, USB-Webcam, microphone, 2ch-speaker, and high-speed processing unit. In our HMIS, two principal operation modes are selected by the existence of the user in front of it. The first one, 'mirror-mode', is activated when the user's face is detected via USB-Webcam. In this mode, HMIS provides three basic functions such as 1) make-up assistance by magnifying an interested facial component and TTS (Text-To-Speech) guide for appropriate make-up, 2) Daily weather information provider via WWW service, 3) Health monitoring/diagnosis service using Chinese medicine knowledge. The second one, 'display-mode' is designed to show decorative pictures, family photos, art paintings and so on. This mode is activated when the user's face is not detected for a time being. In display-mode, we also added a 'healing-window' function and 'healing-music player' function for user's psychological comfort and/or relaxation. All these functions are accessible by commercially available voice synthesis/recognition package.

The study of Parking Management System by Image Processing (영상인식을 이용한 주차 관리 시스템 연구)

  • Kim, Kun-Kook;Son, Woong-Gi;Lee, Min-Gyu;Han, Jung-Gu;Park, Yong-Wook
    • The Journal of the Korea institute of electronic communication sciences
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    • v.12 no.4
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    • pp.651-656
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    • 2017
  • In this study, we designed the system that helps drivers check all information about parking space at the entrance and find out whether the places is available or not, because the system has 'Image recognition function' which can even recognize car number plates exactly. Besides, we place the webcam close to the car number plate, so that car number can be identified more quickly. Finally, since we set the webcam high, the system keeps us from parking wrong places by displaying on the screen.

Development of Cost-Effective Platform for Tracking and Analysis of Animal Ambulatory Patterns

  • Kwon, Jeonghoon;Park, Hong Ju;Joo, Segyeong;Huh, Soo-Jin
    • Journal of Sensor Science and Technology
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    • v.23 no.2
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    • pp.82-86
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    • 2014
  • This paper reports the development of a platform for tracking and analysis of animal locomotion. The platform is composed of a commercial webcam, a metal stand for the webcam, and a plastic bathtub as a cage. Using it, researchers can track and analyze an animal's movement within the plastic bathtub's dimensions of $100cm{\times}100cm{\times}55cm$ in a cost-effective manner. After recording the locomotion of an animal with $1920{\times}1080$ resolution at a rate of 30 frames per second, finding the position of the animal in each frame and analyzing the ambulation pattern were executed with custom software. To evaluate the performance of the platform, movements of imprinting control region mice and transgenic mice were recorded and analyzed. The analysis successfully compared velocity, moving pattern, and total moving distance for the two mouse groups. In addition, the developed platform can be used not only in simple motion analysis but also in various experimental conditions, such as a water maze, by easy customization of the platform. Such a simple and cost-effective platform yields a powerful tool for animal ambulatory analysis.

Study of LED Lighting Pattern Generator (LED 등 패턴 출력기 연구)

  • Lee, Byeung-Chan;Ma, Jae-Seung;Park, Chang-Wo;An, Hye-Bin;Park, Yong-Wook
    • The Journal of the Korea institute of electronic communication sciences
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    • v.12 no.6
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    • pp.1093-1098
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    • 2017
  • In this study, we designed the system that helps drivers check all information about parking space at the entrance and find out whether the places is available or not, because the system has 'Image recognition function' which can even recognize car number plates exactly. Besides, we place the webcam close to the car number plate, so that car number can be identified more quickly. Finally, since we set the webcam high, the system keeps us from parking wrong places by displaying on the screen.