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A synchronization error measurement system for multiple high-speed cameras with controllable precision

A high-speed camera, synchronization error technology, applied in the parts of the TV system, the parts of the color TV, the TV and other directions, can solve the problems of fixed synchronization error accuracy, unable to achieve a variety of error accuracy, only reaching the ms level, etc. Achieve the effect of convenient synchronization error and simple error measurement method

Active Publication Date: 2022-04-29
HEFEI JUNDA HI TECH INFORMATION TECH
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Problems solved by technology

[0003] At present, when multiple high-speed cameras are used for synchronous shooting, it is necessary to measure the synchronization error for synchronization calibration. In the prior art, the synchronization error of multiple high-speed cameras is obtained by judging the time stamp and frame interval of the image, but judging The synchronization error accuracy of high-speed cameras is fixed and can only reach the ms level, which cannot meet the various error accuracy requirements required by most customers to adapt to different usage scenarios

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  • A synchronization error measurement system for multiple high-speed cameras with controllable precision
  • A synchronization error measurement system for multiple high-speed cameras with controllable precision
  • A synchronization error measurement system for multiple high-speed cameras with controllable precision

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[0026] The specific implementation of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that these specific descriptions are only for those of ordinary skill in the art to understand the present invention more easily and clearly, rather than limiting interpretation of the present invention.

[0027] see figure 1 , the embodiment of the present invention provides a precision controllable multiple high-speed camera synchronization error measurement system, including:

[0028] The pattern dynamic change device is based on the pulse signal sent by the FPGA to trigger the pattern to change according to the preset time interval and the preset change order. It can be understood that the pattern switched and displayed within the preset period cannot be repeated multiple times, so as to distinguish and identify;

[0029] Synchronous signal controller connected with multiple cameras;

[0030] Multiple high-speed ca...

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Abstract

The invention discloses a synchronization error measurement system for multiple high-speed cameras with controllable precision, which includes: a pattern dynamic transformation device, based on the pulse signal sent by the FPGA, the trigger pattern is transformed according to a preset time interval and a preset transformation sequence. The time interval is determined according to the measurement error accuracy requirements; multiple high-speed cameras are used to capture the current pattern of the dynamic pattern transformation device based on the synchronous control signal; the synchronous error calculation module is used to acquire multiple Synchronization signal timing error between cameras. The invention realizes the synchronous error calculation for different measurement error precision requirements, and the control method for the measurement error precision is easy to realize, and the synchronous error calculation method is simple.

Description

technical field [0001] The invention relates to the technical field of signal synchronization control, in particular to a synchronization error measurement system for multiple high-speed cameras with controllable precision. Background technique [0002] At present, the frame rate of high-speed cameras can reach up to 1 million frames, and they are widely used in the fields of gunpowder blasting analysis, ballistic analysis, high-resolution high-speed microscope imaging, automobile crash tests, fast fluid observation, etc. Sometimes it is necessary to use multiple high-speed cameras to monitor During the test, observe and observe the changes of the test in a short period of time. [0003] At present, when multiple high-speed cameras are used for synchronous shooting, it is necessary to measure the synchronization error for synchronization calibration. In the prior art, the synchronization error of multiple high-speed cameras is obtained by judging the time stamp and frame int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N17/00H04N5/04
CPCH04N17/002H04N5/04
Inventor 彭超卢小银陈浩雷秀军严德斌金一
Owner HEFEI JUNDA HI TECH INFORMATION TECH
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