Hardware acceleration based vectorized VTS (vessel traffic service) system radar video drawing method

A hardware acceleration and vectorization technology, applied in the field of VTS traffic management display system, can solve the problems of low efficiency and low image reliability, and achieve the effect of high display efficiency and continuous smooth radar video.

Active Publication Date: 2014-03-26
中船鹏力(南京)大气海洋信息系统有限公司 +2
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Problems solved by technology

[0008] The technical problem to be solved by the present invention is: Aiming at the problems that the VTS software uses the central processing unit CPU to directly draw t...

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  • Hardware acceleration based vectorized VTS (vessel traffic service) system radar video drawing method
  • Hardware acceleration based vectorized VTS (vessel traffic service) system radar video drawing method

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Embodiment Construction

[0020] The present invention will be further described below with regard to the specific embodiments in conjunction with the accompanying drawings.

[0021] A vectorized VTS system radar video rendering method based on hardware acceleration disclosed by the present invention is to establish a vectorized Cartesian coordinate system for each radar that needs to be displayed on the VTS traffic management system, and the Cartesian coordinate system is divided into many Display polygons (quadrilateral, pentagonal, hexagonal, heptagonal, octagonal) with sufficient precision, so that each sampling point of the radar belongs to a specific display polygon, the shape and size of the display polygon depends on the system Scaling and sampling accuracy of the radar. In this way, when the video is displayed, the radar video can be displayed in the form of massive display polygons using hardware acceleration.

[0022] The schematic diagram of the main flow chart drawn during the running per...

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Abstract

The invention discloses a hardware acceleration based vectorized VTS (vessel traffic service) system radar video drawing method. The method includes: firstly, establishing a vectorized rectangular coordinate system for each radar needing to be displayed on a VTS traffic management system, dividing each rectangular coordinate system into a plurality of display polygons with enough accuracy, and allowing each sampling point of the radars to belong to one specific display polygon, wherein size and shape of each display polygon depend on scaling of the system and sampling precision of the radars; secondly, determining color depth of each vector graph according to amplitude of original videos by mapping the original videos of the radars to the divided vector graphs; thirdly, according to vertex position, length and width and scaling of a window, determining number of the vector graphs needing to be displayed; finally, invoking a graphic display card to display the radar videos with hardware efficiency. The method has the advantages of high display efficiency, radar video continuity and smoothness and no hollowness under the condition that video precision is guaranteed.

Description

technical field [0001] The invention discloses a hardware-accelerated vectorized VTS system radar video drawing method, especially for a VTS traffic management display system with large display data and high performance requirements, and relates to the field of radar video drawing. Background technique [0002] VTS is a system that uses communication facilities such as AIS base station, radar, CCTV, wireless telephone, and shipboard terminal to monitor ships navigating in harbors and entering and leaving ports, and to provide these ships with safety information required for navigation. Our country is usually called the Vessel Traffic Management System. Through this system, it is possible to monitor whether the ship's route is out of the way, the direction of travel, the speed, the crossing of the ship, etc., so as to quickly provide the ship with the required safe navigation information when entering and leaving the port. [0003] For a VTS system with three (radar) station...

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Application Information

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IPC IPC(8): G01S7/04
CPCG01S7/062
Inventor 田池朱骞王秀峰韩晓伟杨明远张金松
Owner 中船鹏力(南京)大气海洋信息系统有限公司
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