This paper introduces the implementing methods of transferring from the 738*575 PAL digital video signal to the 800*600 VGA format based on Xilinx Spartan-3E FPGA XC3S250E.
To lively record information related to the video signals from monitored points on highway, such as the date/time and place, the system needs the function of overlapping the Chinese character with dynamic Video.
The key difficulties of the design conquered in the system are the exact acquisition of ratio and video signals, the interface design among ADV611, DSP and SAA7111A, the Ethernet transmission interface design of the surveillance system,the high speed circuit of TMS320C6201 DSP and its extended SDRAM and Flash.
Using ADSP-BF533 embedded CPU produced by ADI Co. ,the high speed transmission of video-signal data flow via Parallel Peripheral Interface(PPI) was controlled and the signals were compressed in MPEG-4 mode.
On the base of measuring the Radar's video-signal,we in-depth study and analysis the video-signal in this subject,we find out every techno-parameter's items of sampling video-signal,and then research the effect bringing out by sampling.
The principle of the system is fixing the source of laser beam on the body of landslide, the monitoring system was installed on a stable spot which is far from the landslide to monitor the source of the laser. The monitoring system is made up of telescope lens and CCD monitoring device. The video-signal which is outputted by CCD serves as the input of the computer.
This paper introduces the implementing methods of transferring from the 738*575 PAL digital video signal to the 800*600 VGA format based on Xilinx Spartan-3E FPGA XC3S250E.
Digital (discrete domain) filters applied to image and video signal processing using the novel 3D multirate algorithms for efficient implementation of moving object extraction are engineered with an example.
The Wyner-Ziv bit stream allows the decoding of a coarsely quantized description of the original video signal, and is efficiently generated by using H.264/AVC redundant slices in conjunction with Reed-Solomon coding.
The Wyner-Ziv bit stream is decoded in order to recover the redundant video descriptions, which are used in lieu of portions lost from the original video signal due to channel errors.
In this paper we discuss an operation of the acousto-optic videosignal temporal scale converter, which can operate in temporal compression mode and also in temporal expansion.