The Experts below are selected from a list of 123813 Experts worldwide ranked by ideXlab platform

Xuan Guorong - One of the best experts on this subject based on the ideXlab platform.

  • Demonstration System of Video Traffic Flow Measurement
    Computer Engineering, 2003
    Co-Authors: Xuan Guorong
    Abstract:

    This paper provides "Demonstration System of video traffic flow meas urement" which can be downloaded from the Internet. The System recognizes the ve hicles by the gray scale variation on the video measuring lines that set down on the screen in advance. It can measure the vehicle flow, vehicle length and vehi cle velocity. In addition, it adopts the gap theory, dynamic background refresh, the threshold of color image and video compression. This paper provides an exam ple by using this System on the video of one intersection in Shanghai. The demo System can be applied in other video surveillance Systems.

Day, John H. - One of the best experts on this subject based on the ideXlab platform.

  • Low Resolution Picture Transmission (LRPT) Demonstration System
    2002
    Co-Authors: Duran Steve, Sank Victor, Xia Wei, Fong Wai, Nyugen Xuan, Yeh Pen-shu, Day, John H.
    Abstract:

    Low-Resolution Picture Transmission (LRPT) is a proposed standard for direct broadcast transmission of satellite weather images. This standard is a joint effort by the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) and NOAA. As a digital transmission scheme, its purpose is to replace the current analog Automatic Picture Transmission (APT) System for use in the Meteorological Operational (METOP) satellites. GSFC has been tasked to build an LRPT Demonstration System (LDS). Its main objective is to develop or demonstrate the feasibility of a low-cost receiver utilizing a PC as the primary processing component and determine the performance of the protocol in the simulated Radio Frequency (RF) environment. The approach would consist of two phases

  • Low Resolution Picture Transmission (LRPT) Demonstration System
    2002
    Co-Authors: Yeh Pen-shu, Duran Steve, Sank Victor, Xia Wei, Fong Wai, Nyugen Xuan, Day, John H.
    Abstract:

    Low-Resolution Picture Transmission (LRPT) is a proposed standard for direct broadcast transmission of satellite weather images. This standard is a joint effort by the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) and the National Oceanic Atmospheric Administration (NOAA). As a digital transmission scheme, its purpose is to replace the current analog Automatic Picture Transmission (APT) System for use in the Meteorological Operational (METOP) satellites. Goddard Space Flight Center has been tasked to build an LRPT Demonstration System (LDS). It's main objective is to develop or demonstrate the feasibility of a low-cost receiver utilizing a Personal Computer (PC) as the primary processing component and determine the performance of the protocol in the simulated Radio Frequency (RF) environment. The approach would consist of two phases. In the phase 1, a Commercial-off-the-Shelf (COTS) Modulator-Demodulator (MODEM) board that would perform RF demodulation would be purchased allowing the Central Processing Unit (CPU) to perform the Consultative Committee for Space Data Systems (CCSDS) protocol processing. Also since the weather images are compressed the PC would perform the decompression. Phase 1 was successfully demonstrated on December 1997. Phase 2 consists of developing a high-fidelity receiver, transmitter and environment simulator. Its goal is to find out how the METOP Specification performs in a simulated noise environment in a cost-effective receiver. The approach would be to produce a receiver using as much software as possible to perform front-end processing to take advantage of the latest high-speed PCs. Thus the COTS MODEM used in Phase 1 is performing RF demodulation along with data acquisition providing data to the receiving software. Also, environment simulator is produced using the noise patterns generated by Institute for Telecommunications Sciences (ITS) from their noise environment study

Qiu Hong-bing - One of the best experts on this subject based on the ideXlab platform.

  • Design of Video Demonstration System for UWB Communication
    Computer Engineering, 2008
    Co-Authors: Qiu Hong-bing
    Abstract:

    For directly showing the preferable performance figure of Ultra-Wideband(UWB) communication, a scheme of embedded video Demonstration System of UWB communication is presented. An embedded Linux System based on microprocessor of Samsung S3C2410 is applied to image collection in UWB transmitter, and video is captured with the VFW component provided by Microsoft Windows in UWB receiver. It is proved that the design of hardware and software achieves the anticipated results.

Duran Steve - One of the best experts on this subject based on the ideXlab platform.

  • Low Resolution Picture Transmission (LRPT) Demonstration System
    2002
    Co-Authors: Duran Steve, Sank Victor, Xia Wei, Fong Wai, Nyugen Xuan, Yeh Pen-shu, Day, John H.
    Abstract:

    Low-Resolution Picture Transmission (LRPT) is a proposed standard for direct broadcast transmission of satellite weather images. This standard is a joint effort by the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) and NOAA. As a digital transmission scheme, its purpose is to replace the current analog Automatic Picture Transmission (APT) System for use in the Meteorological Operational (METOP) satellites. GSFC has been tasked to build an LRPT Demonstration System (LDS). Its main objective is to develop or demonstrate the feasibility of a low-cost receiver utilizing a PC as the primary processing component and determine the performance of the protocol in the simulated Radio Frequency (RF) environment. The approach would consist of two phases

  • Low Resolution Picture Transmission (LRPT) Demonstration System
    2002
    Co-Authors: Yeh Pen-shu, Duran Steve, Sank Victor, Xia Wei, Fong Wai, Nyugen Xuan, Day, John H.
    Abstract:

    Low-Resolution Picture Transmission (LRPT) is a proposed standard for direct broadcast transmission of satellite weather images. This standard is a joint effort by the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) and the National Oceanic Atmospheric Administration (NOAA). As a digital transmission scheme, its purpose is to replace the current analog Automatic Picture Transmission (APT) System for use in the Meteorological Operational (METOP) satellites. Goddard Space Flight Center has been tasked to build an LRPT Demonstration System (LDS). It's main objective is to develop or demonstrate the feasibility of a low-cost receiver utilizing a Personal Computer (PC) as the primary processing component and determine the performance of the protocol in the simulated Radio Frequency (RF) environment. The approach would consist of two phases. In the phase 1, a Commercial-off-the-Shelf (COTS) Modulator-Demodulator (MODEM) board that would perform RF demodulation would be purchased allowing the Central Processing Unit (CPU) to perform the Consultative Committee for Space Data Systems (CCSDS) protocol processing. Also since the weather images are compressed the PC would perform the decompression. Phase 1 was successfully demonstrated on December 1997. Phase 2 consists of developing a high-fidelity receiver, transmitter and environment simulator. Its goal is to find out how the METOP Specification performs in a simulated noise environment in a cost-effective receiver. The approach would be to produce a receiver using as much software as possible to perform front-end processing to take advantage of the latest high-speed PCs. Thus the COTS MODEM used in Phase 1 is performing RF demodulation along with data acquisition providing data to the receiving software. Also, environment simulator is produced using the noise patterns generated by Institute for Telecommunications Sciences (ITS) from their noise environment study

Yeh Pen-shu - One of the best experts on this subject based on the ideXlab platform.

  • Low Resolution Picture Transmission (LRPT) Demonstration System
    2002
    Co-Authors: Duran Steve, Sank Victor, Xia Wei, Fong Wai, Nyugen Xuan, Yeh Pen-shu, Day, John H.
    Abstract:

    Low-Resolution Picture Transmission (LRPT) is a proposed standard for direct broadcast transmission of satellite weather images. This standard is a joint effort by the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) and NOAA. As a digital transmission scheme, its purpose is to replace the current analog Automatic Picture Transmission (APT) System for use in the Meteorological Operational (METOP) satellites. GSFC has been tasked to build an LRPT Demonstration System (LDS). Its main objective is to develop or demonstrate the feasibility of a low-cost receiver utilizing a PC as the primary processing component and determine the performance of the protocol in the simulated Radio Frequency (RF) environment. The approach would consist of two phases

  • Low Resolution Picture Transmission (LRPT) Demonstration System
    2002
    Co-Authors: Yeh Pen-shu, Duran Steve, Sank Victor, Xia Wei, Fong Wai, Nyugen Xuan, Day, John H.
    Abstract:

    Low-Resolution Picture Transmission (LRPT) is a proposed standard for direct broadcast transmission of satellite weather images. This standard is a joint effort by the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) and the National Oceanic Atmospheric Administration (NOAA). As a digital transmission scheme, its purpose is to replace the current analog Automatic Picture Transmission (APT) System for use in the Meteorological Operational (METOP) satellites. Goddard Space Flight Center has been tasked to build an LRPT Demonstration System (LDS). It's main objective is to develop or demonstrate the feasibility of a low-cost receiver utilizing a Personal Computer (PC) as the primary processing component and determine the performance of the protocol in the simulated Radio Frequency (RF) environment. The approach would consist of two phases. In the phase 1, a Commercial-off-the-Shelf (COTS) Modulator-Demodulator (MODEM) board that would perform RF demodulation would be purchased allowing the Central Processing Unit (CPU) to perform the Consultative Committee for Space Data Systems (CCSDS) protocol processing. Also since the weather images are compressed the PC would perform the decompression. Phase 1 was successfully demonstrated on December 1997. Phase 2 consists of developing a high-fidelity receiver, transmitter and environment simulator. Its goal is to find out how the METOP Specification performs in a simulated noise environment in a cost-effective receiver. The approach would be to produce a receiver using as much software as possible to perform front-end processing to take advantage of the latest high-speed PCs. Thus the COTS MODEM used in Phase 1 is performing RF demodulation along with data acquisition providing data to the receiving software. Also, environment simulator is produced using the noise patterns generated by Institute for Telecommunications Sciences (ITS) from their noise environment study