• Title/Summary/Keyword: trace of object

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A study of object trace using sensor information (센서 정보를 이용한 객체 추적에 대한 연구)

  • Kim, Kwan-Joong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.4
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    • pp.1921-1925
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    • 2013
  • In this paper, we propose a method of object trace to real image object which enter into an area. The trace to a recognized object can be implemented to detect the moving pattern if the object enter into an area. Such as this mechanism can be applied to some applications to danger area or limited area where the invasion of unauthorized object or the moving pattern of an object is identified to achieve the trace and detection of an object.

Tracking and Tracing the Status Changes of Sensor Tags based on the SIP Presence Model (SIP 프레즌스 모델 기반 센서 태그의 상태이력 추적)

  • Kim, Dong-Uk;Hong, Jin-Pyo
    • Journal of KIISE:Information Networking
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    • v.36 no.3
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    • pp.231-242
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    • 2009
  • The EPC-Discovery Service (EPC-DS) is a good representative of the RFID Track & Trace. But this mechanism has several problems. EPC-DS uses centralized server scheme which may arise bottle-neck state and that cannot provide detail trace information of a RFID object. In addition, a trace node requires direct access method to a RFID object or an element which has information of the RFID object for Track & Trace. In this paper, we propose a novel RFID Track & Trace mechanism which based on the SIP presence model and SIP event notification. This mechanism can provide detail trace information and monitoring function, and also can rid the bottle-neck section by combination of SIP methods instead of centralized element.

Real-Time Haptic Rendering for Tele-operation with Varying Communication Time Delay (가변적인 통신지연시간을 갖는 원격 작업 환경을 위한 실시간 햅틱 렌더링)

  • Lee, K.;Chung, S.Y.
    • Journal of Power System Engineering
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    • v.13 no.2
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    • pp.71-82
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    • 2009
  • This paper presents a real-time haptic rendering method for a realistic force feedback in a remote environment with varying communication time-delay. The remote environment is assumed as a virtual environment based on a computer graphics, for example, on-line shopping mall, internet game and cyber-education. The properties of a virtual object such as stiffness and viscosity are assumed to be unknown because they are changed according to the contact position and/or a penetrated depth into the object. The DARMAX model based output estimator is proposed to trace the correct impedance of the virtual object in real-time. The output estimator is developed on the input-output relationship. It can trace the varying impedance in real-time by virtue of P-matrix resetting algorithm. And the estimator can trace the correct impedance by using a white noise that prevents the biased input-output information. Realistic output forces are generated in real-time, by using the inputs and the estimated impedance, even though the communication time delay and the impedance of the virtual object are unknown and changed. The generated forces trace the analytical forces computed from the virtual model of the remote environment. Performance is demonstrated by experiments with a 1-dof haptic device and a spring-damper-based virtual model.

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Modelling and performance analysis for the end-to-end path tracing managment in ATM network (ATM망의 단대단 통신로 추적관리의 모델링 및 성능분석)

  • 박명환;안중영;조규섭
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.21 no.9
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    • pp.2385-2401
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    • 1996
  • In this paper, a management model and a path trace algorithm are proposed for the end-to-end path tracing management in ATM network. Proposedmodel is based on the TINA(Telecommunication Information Networking Architecture) and computational object(CO) of ODP(Open Distributed Processing).We related computational object for the path trace to another computational object which covers the ATM routing and established operational procedure according to this relationship. This procedure identifies the end-to-end by way of tracing the ATM connections then collect identification information on the that path. End-to-end trace is performed on the network management level. Broadcasting-with-synchronized-control and GTM(Global Ticket Method) are proposed as path trace algorithm considering the real time properties and data ingetrity. Computer simulations are also performed to evaluate the performance of the proposed algorithm and its resuls are shown in this paper.

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Real-time Zoom Tracking for DM36x-based IP Network Camera

  • Cong, Bui Duy;Seol, Tae In;Chung, Sun-Tae;Kang, HoSeok;Cho, Seongwon
    • Journal of Korea Multimedia Society
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    • v.16 no.11
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    • pp.1261-1271
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    • 2013
  • Zoom tracking involves the automatic adjustment of the focus motor in response to the zoom motor movements for the purpose of keeping an object of interest in focus, and is typically achieved by moving the zoom and focus motors in a zoom lens module so as to follow the so-called "trace curve", which shows the in-focus motor positions versus the zoom motor positions for a specific object distance. Thus, one can simply implement zoom tracking by following the most closest trace curve after all the trace curve data are stored in memory. However, this approach is often prohibitive in practical implementation because of its large memory requirement. Many other zoom tracking methods such as GZT, AZT and etc. have been proposed to avoid large memory requirement but with a deteriorated performance. In this paper, we propose a new zoom tracking method called 'Approximate Feedback Zoom Tracking method (AFZT)' on DM36x-based IP network camera, which does not need large memory by approximating nearby trace curves, but generates better zoom tracking accuracy than GZT or AZT by utilizing focus value as feedback information. Experiments through real implementation shows the proposed zoom tracking method improves the tracking performance and works in real-time.

The Camera Tracking of Real-Time Moving Object on UAV Using the Color Information (컬러 정보를 이용한 무인항공기에서 실시간 이동 객체의 카메라 추적)

  • Hong, Seung-Beom
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.18 no.2
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    • pp.16-22
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    • 2010
  • This paper proposes the real-time moving object tracking system UAV using color information. Case of object tracking, it have studied to recognizing the moving object or moving multiple objects on the fixed camera. And it has recognized the object in the complex background environment. But, this paper implements the moving object tracking system using the pan/tilt function of the camera after the object's region extraction. To do this tracking system, firstly, it detects the moving object of RGB/HSI color model and obtains the object coordination in acquired image using the compact boundary box. Secondly, the camera origin coordination aligns to object's top&left coordination in compact boundary box. And it tracks the moving object using the pan/tilt function of camera. It is implemented by the Labview 8.6 and NI Vision Builder AI of National Instrument co. It shows the good performance of camera trace in laboratory environment.

Relation Tracking of Occluded objects using a Perspective Depth (투시적 깊이를 활용한 중첩된 객체의 관계추적)

  • Park, Hwa-Jin
    • Journal of Digital Contents Society
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    • v.16 no.6
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    • pp.901-908
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    • 2015
  • Networked multiple CCTV systems are required to effectively trace down long-term abnormal behaviors, such as stalking. However, the occluding event, which often takes place during tracking, may result in critical errors of cessation of tracing, or tracking wrong objects. Thus, utilizing installed regular CCTVs, this study aims to trace the relation tracking in a continuous manner by recognizing distinctive features of each object and its perspective projection depth to address the problem with occluded objects. In addition, this study covers occlusion event between the stationary background objects, such as street lights, or walls, and the targeted object.

"The Light": An Experimental Moving Image which uses Color, Trace, and Interactivity of Light to Measure Quantitative Presence ("The Light": 정량적 프레즌스 측정을 위한 빛의 색, 빛의 움직임, 빛과의 인터랙션을 이용한 추상영상 실험)

  • Jeon, Seongsin;Kim, Seong Whan
    • KIPS Transactions on Software and Data Engineering
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    • v.6 no.12
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    • pp.587-592
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    • 2017
  • In this paper, we raise a question: what makes presence in artistic works. Presence has been defined as a physiological and emotional feeling which feels that he or she is immerged in a specific artworks when he/she is very interested in the artwork. We design and implemented an abstract media art "The Light" which uses the color, trace, and interactivity of light to measure quantitative presence. Frequency spectrum of light on specific object which we perceive makes color; Motion of light and its impact on object makes shape which perceived in our human visual system; Interactivity or perceived distance between object and observer makes intensity of perception. We experimented our images with subjective survey which includes PQS (presence questionnaire survey) and objective test using brain signals (EEG). From our interactive experimental moving images tested on 30 subject, we conclude that we can make more presence as we interact more with images. Photo-realistic images is just pass-by and it is transformed to abstract images, as we more focused on the images, and the essential components of the abstraction includes color, trace, and interaction with subjects.

Acoustic Signal Analysis for Exploration of Buried Objects in the Ocean (해저매몰체 탐사를 위한 음향신호의 분석)

  • Kim, Jin-Hoo;Han, Kun-Mo;Park, Jong-Nam
    • Journal of Ocean Engineering and Technology
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    • v.9 no.2
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    • pp.167-174
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    • 1995
  • The anomlous signal, anomaly, recorded by a sub-bottem profiler is analized for exploration of buried objects in the ocean, This anomaly is known as a signal diffracted from the edge of the buried object. Signals obtained from model that and numerical simulation are analized for investigating characteristics of the diffracted signal. From this study a diffracted signal and a non-diffracted signal can be identified, and the location of the object can be obtained. In order to identify an object in the seafloor the dimension of the object should be greater than the wave length used for exploration, and the acoustic impedance should be much greater than that of sediments. A 2-trace stacking of the signals can enhance the feature of strongly diffracted signals whereas it can diminish weak signals.

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The Movement Order of the νP-Subject and the VP-Object in English

  • Lee, Doo-Won
    • Korean Journal of English Language and Linguistics
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    • v.4 no.1
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    • pp.103-116
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    • 2004
  • Chomsky (2001) and Kitahara's (2002) suggestion that object shift occurs prior to movement of the νP-subject to SPEC-T is not on the right track with respect to the Merge operation. According to the Merge operation, TP is necessarily created earlier than CP. Chomsky (2001) suggests that the probe-goal relation between T and SUBJ is evaluated in the CP after it is known whether the position of as has become a trace losing its phonological content. However, the FocP is not a phase (CP). So, Chomsky (2001) and Kitahara's (2002) suggestion is not correct in the case of the movement of OBJ to the spec of Foc in English, either. The aim of this paper is to show that the νP-subject must move to SPEC- T prior to the consecutive movement of the wh-object to SPEC-C via object shift in English. This derivation obeys Chomsky's (2001) so-called probe-goal matching condition.

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