• Title, Summary, Keyword: Real Time DVR system

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System Realization for Real Time DVR System with Robust Video Watermarking (강인한 비디오 워터마킹을 적용한 실시간 DVR 시스템 구현에 관한 연구)

  • Kim Ja-Hwan;Sclabassi Robert J.;Ryu Kwang-Ryol
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.201-204
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    • 2006
  • A system realization for real time DVR system with robust video watermarking algorithm against is attacked various is presented in this paper. The main system is composed of DSP processor and robust video watermarking to be processed at real time on image data and algorithm of the DVR system. The experimental result shows that the processing time takes about 2.5ms on the D1 size image per frame.

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System Design and Realization for Real Time DVR System with Robust Video Watermarking (강인한 비디오 워터마킹을 적용한 실시간 DVR 시스템의 설계 구현)

  • Ryu Kwang-Ryol;Kim Ja-Hwan
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.10 no.6
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    • pp.1019-1024
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    • 2006
  • A system design and realization for real time DVR system with robust video watermarking algorithm for contents security is presented in this paper. The robust video watermarking is used the intraframe space region and interframe insertion simultaneously, and to be processed at real time on image data and algorithm is used the 64bits special purpose quad DSP processor with assembly and soft pipeline codes. The experimental result shows that the processing time takes about 2.5ms in the D1 image per frame for 60% moving image.

A Study on the DVR System Realization with Watermarking and MPEG-4 for Realtime Processing Speed Improvement (워터마킹과 MPEG4를 적용한 DVR 시스템과 실시간 처리 속도 향상에 관한 연구)

  • Kim, Ja-Hwang;Hur, Chang-Wu;Ryu, Kwang-Ryol
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • v.9 no.2
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    • pp.1107-1111
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    • 2005
  • The DVR system realization with watermarking and MPEG-4 for real time processing speed improvement is presented in this paper. For the real time processing the system is used the DSP processor, Quick DMA for data transmission, watermarking for security and MPEG-4 compression for facility. The algorithms are that the operational structure has the internal memory of processor, and the optimal realization is suitable to form the DSP processor structure r processed for the iterative operations. The experimental result shows the real time processing is improved 12% over for the D1 image in comparison with the other system.

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A Study on FPGA utilization For PC-based Full-HD DVR System Implementation (Full-HD급 PC기반 DVR System 구현을 위한 FPGA 활용에 관한 연구)

  • Kim, Ki-Hwa
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.4
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    • pp.2363-2369
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    • 2014
  • The DVR system supports multiple cameras and should be able to receive images at 30 frames per channel in real time. Thus, The system is using Full-HD-grade Multiplexer and Hardware compression codec. In this paper, Describing the design and implementation for the 4-channel Full-HD-grade PC-based DVR using FPGA and GPU inside CPU without Multiplexer and Hardware codec. The existing DVR system for Full-HD-grade has drawbacks to acquire images of about only 20 frames per channel in real time. The system to acquire images of multiple channel in real time was designed using FPGA. The software for the system was implemented using Intel Media SDK. At the result of performance evaluation, It was satisfied all for the required conditions. The practicality of the system was confirmed as implementation the system without using hardware compression.

Real-time Playback of a Windows based Multichannel Visual Monitoring System (윈도우즈 기반 다채널 영상 감시 시스템의 실시간 재생)

  • 양정훈;정선태
    • Proceedings of the IEEK Conference
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    • pp.2116-2119
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    • 2003
  • In this paper, we present a DirectShow-based retrieval and playback subsystem of DVR(Digital Video Recorder), which supports real-time playback of stored video data and synchronized playback among several video channel data. The effectiveness of out proposed design is verified through experiments with a DVR system implementing the proposed design.

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Implementation of Video Surveillance System with Motion Detection based on Network Camera Facilities (움직임 감지를 이용한 네트워크 카메라 기반 영상보안 시스템 구현)

  • Lee, Kyu-Woong
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.14 no.1
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    • pp.169-177
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    • 2014
  • It is essential to support the image and video analysis technology such as motion detection since the DVR and NVR storage were adopted in the real time visual surveillance system. Especially the network camera would be popular as a video input device. The traditional CCTV that supports analog video data get be replaced by the network camera. In this paper, we present the design and implementation of video surveillance system that provides the real time motion detection by the video storage server. The mobile application also has been implemented in order to provides the retrieval functionality of image analysis results. We develop the video analysis server with open source library OpenCV and implement the daemon process for video input processing and real-time image analysis in our video surveillance system.

Design and Implementation of A Display system for a Visual Monitoring system supporting multichannel display in multi screen division display modes (다채널 및 다중 화면 분할 모드를 지원하는 영상 감시 장치의 디스플레이 시스템 설계 및 구현)

  • 정연권;정선태
    • Proceedings of the IEEK Conference
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    • pp.351-354
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    • 2002
  • DVR(Digital Video Recorder), a recently popular visual monitoring system, is required to support multi camera channel display(upto 16 channels) with various display modes in real-time. For such a multichannel display system, it is well known that tearing artifacts become more serious. Thus, one needs to design a display system for DVR so that it does not show tearing artifacts as much as possible, but keeps real-time display speed. In this paper, we present our efforts in designing and implementing a display system which rarely ever shows tearing artifacts, but without degradation of required real-time display speed, and which displays character information stably without blinking.

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ESP : A DVR File Format for Enhanced Recording and Searching (ESP : 녹화 및 검색 기능 향상을 위한 DVR전용 파일 포맷)

  • Park, Jae-Kyung;Yang, Seung-Min
    • The KIPS Transactions:PartB
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    • v.16B no.1
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    • pp.25-34
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    • 2009
  • DVR(Digital Video Recorder) system stores video inputs in compressed digital formats and retrieve them. DVR system has several advantages over traditional analog tape recorder system which are (1) improved real-time monitoring, recording and searching capability, and (2) other capabilities such as watermarking and remote monitoring through network. AVI format is the most popular format used for DVR systems. However, AVI format has drawbacks in recording and searching due to structural problem. Some vendors develop and use their own format, do not open the format to the public. In this paper, ESP format is proposed. ESP format solves the drawbacks of AVI format, and the advantages of AVI format apply to ESP format. Moreover, ESP format provides multistream recording/replay and event-recording. In result, ESP format enchances functionality of recording and searching in DVR system.

Implementation of 4-channel Embedded DVR Based on Linux (리눅스 기반 4채널 임베디드 DVR 구현)

  • 이흥규;정갑천;최종현;박성모
    • Proceedings of the IEEK Conference
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    • pp.2677-2680
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    • 2003
  • This paper describes the implementation of a 4 channel embedded DVR system. It receives analog video from CCD cameras and converts to 640${\times}$480 CCIR-656 digital video by 30 frames/sec. These digital images are compressed to the wevelet transformed image using hardware codec which is capable of 350:1 real-time compression and decompression. The DVR is working on linux and it implemented on an embedded system which is based on StrongARM processor. For the interface between processor system module and image processing module, GPIO and memory control module are used, device drivers are developed. Linux kernel source is customized. This paper provides techniques of embedded system development and embedded linux porting.

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Study of High Speed Image Registration using BLOG (BLOG를 이용한 고속 이미지 정합에 관한 연구)

  • Kim, Jong-Min;Kang, Myung-A
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.11
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    • pp.2478-2484
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    • 2010
  • In this paper, real-time detection methods for Panorama system Key-Points offers. A recent study in PANORAMA system real-time area navigation or DVR to apply such research has recently been actively. The detection of the Key-Point is the most important elements that make up a Panorama system. Not affected by contrast, scale, Orientation must be detected Key-Point. Existing research methods are difficult to use in real-time Because it takes a lot of computation time. Therefore, this paper propose BLOG(BitRate Laplacian Of Gaussian)method for faster time Key-Point Detecting and Through various experiments to detect the Speed, Computation, detection performance is compared against.