A high-speed video acquisition and transmission method
A technology of video collection and transmission method, which is applied in the field of information data transmission, can solve the problems of CameraLink interface, such as large volume, short effective transmission distance, and high price, so as to enhance flexibility and versatility, shorten development cycle, and reduce system cost Effect
Active Publication Date: 2020-06-26
西安中科飞图光电科技有限公司
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Problems solved by technology
[0007] The main disadvantage of the LVDS bus interface is whether it is an industrial standard, the technical cost is high, and the effective transmission distance is short
[0008] The Camera Link interface is bulky, and the cable is thick, heavy, expensive, and the transmission distance is short
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[0050] see figure 1 , a high-speed video acquisition and transmission system and transmission method are provided in this embodiment:
[0051] The system includes two parts, the sending end and the receiving end, both of which are equipped with dual SDI interfaces; the sending end and the receiving end transmit data through two SDI coaxial cables;
[0052] Among them, the sending end includes a high-speed image sensor, two 3G-SDI transmitter circuits, and a video acquisition module and a data mapping module integrated on the FPGA chip;
[0053] The receiving end includes two 3G-SDI receiver circuits and a data demapping module and a video processing module integrated on the FPGA chip;
[0054] The high-speed image sensor is used to output non-standard format high-speed video images; the non-standard format high-speed video images are black and white 2048*2025@100fps;
[0055] The video acquisition module collects the non-standard format high-speed video image output by the h...
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The invention provides a high-speed video acquisition transmission system and method. The system comprises two portions including a transmitting terminal and a receiving terminal, the transmitting terminal and the receiving terminal are both provided with 3G-SDI interfaces, the transmitting terminal and the receiving terminal transmit data through two SDI coaxial cables, the transmitting terminalcomprises a high-speed image sensor, two channels of 3G-SDI transmitter circuits, and a video acquisition module and a data mapping module integrated on an FPGA chip, and the receiving terminal comprises two channels of 3G-SDI receiver circuits and a data demapping module and a video processing module integrated on the FPGA chip. According to the system and method, through cooperative effect of amapping rule and a demapping rule on a high-speed image in a non-standard format in the whole usage process, remote lossless transmission of high-speed video data can be realized.
Description
technical field [0001] The invention belongs to the technical field of information data transmission, and in particular relates to a high-speed video collection and transmission system and method. Background technique [0002] In some special occasions or in some specialized fields, special high-resolution and high-speed camera shooting and recording processes are required. For example, when shooting scenes such as the moment when two high-speed flying objects collide in the sky, both cameras and Very high resolution to obtain images with a wide field of view; at the same time, high frame rates are required to ensure that the desired scene is captured. Such cameras will generate very high-speed data streams, placing high demands on the data transmission system. [0003] Transmission image systems are generally divided into analog systems and digital systems. Analog systems include VGA, XVGA, etc., which are not suitable for the transmission process of high-resolution high-...
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IPC IPC(8): H04N7/01H04N7/18
CPCH04N7/0125H04N7/0127H04N7/18
Inventor 谢庆胜张海峰王华冯佳易波边河
Owner 西安中科飞图光电科技有限公司