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Method and device for distinguishing dynamic capture frames

A technology for distinguishing devices and dynamics, applied in the field of image processing, can solve problems such as inability to distinguish captured frames

Active Publication Date: 2020-11-03
SUZHOU KEDA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, an embodiment of the present invention provides a method and device for distinguishing dynamic snapshot frames to solve the problem in the prior art that snapshot frames cannot be effectively distinguished from continuous frame data

Method used

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  • Method and device for distinguishing dynamic capture frames
  • Method and device for distinguishing dynamic capture frames
  • Method and device for distinguishing dynamic capture frames

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Experimental program
Comparison scheme
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Embodiment 1

[0034] figure 1 A flowchart showing a method for distinguishing dynamic snapshot frames in an embodiment of the present invention, figure 2 A block diagram of a system structure using a method for distinguishing dynamic snapshot frames in an embodiment of the present invention is shown, wherein the method for distinguishing dynamic snapshot frames includes:

[0035] Step S10, obtain the sending time T of the random capture command 0 .

[0036] Obtain the sending time T of the capture command issued by the capture logic 21 to the field programmable gate array 22 (hereinafter referred to as FPGA22) 0 At the same time, the capture logic 21 indirectly controls the image sensor 23 by configuring the field programmable gate array 22, and the image sensor 23 changes the shooting setting to a capture mode. Wherein, the capture logic 21 runs on the processor, and the capture logic 21 determines the working mode of the image sensor 23 : normal capture mode or capture mode. Due to t...

Embodiment 2

[0076] image 3 A structural diagram of a device for distinguishing dynamic capture frames is shown, and the device includes:

[0077] The first obtaining module 301 is used to obtain the sending time T of the random capture command 0 .

[0078] The second acquisition module 302 is used to acquire the transmission start signal time T of the snapshot frame data to be distinguished 1 .

[0079] The third obtaining module 303 is used to obtain the mean value t of the time interval difference between multiple adjacent frame data transmissions n .

[0080] A fourth acquisition module 304, configured to acquire the acquisition completion time T of the frame data to be distinguished 2 .

[0081] The first determination module 305, at T 2 at [T 1 ,T 1 +t n ], it is used to determine the frame data to be distinguished as the snapshot frame to be distinguished.

[0082] Among them, the transmission start signal time T 1 and capture command sending time T 0 The interval is g...

Embodiment 3

[0097] Figure 4 It shows a schematic structural diagram of an electronic device provided by an embodiment of the present invention, the electronic device may include a processor 401 and a memory 404, wherein the processor 401 and the memory 404 may be connected through a bus or in other ways, Figure 5 Take connection via bus as an example.

[0098] The processor 401 may be a central processing unit (Central Processing Unit, CPU). The processor 401 may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or Other chips such as programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations of the above-mentioned types of chips.

[0099] The memory 404, as a non-transitory computer-readable storage medium, can be used t...

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Abstract

The invention discloses a distinguishing method and device for dynamic capture frames. The distinguishing method comprises the steps that the random capture instruction sending time T0 is obtained; the initial signal transmitting time T1 of to-be-distinguished capture frame data is obtained; the mean value tn of transmitting time interval differences of the multiple adjacent frame data is obtained; the collecting completing time T2 of the to-be-distinguished frame data is obtained; when T2 is within [T1,T1+tn], it is determined that the to-be-distinguished frame data are to-be-distinguished capture frames; and the interval of the initial signal transmitting time T1 and the capture instruction sending time T0 is larger than the time needed for preprocessing of the frame data by a field-programmable gate array. The property of the frame data processing front end is monitored through the mean value tn of the transmitting time interval differences of the multiple adjacent frame data, the mean value of the monitored time interval differences is updated in real time, thus the work of obtaining the capture frames can be smoothly completed, and stability is good; and the distinguishing method and device are suitable for dynamic capture instructions and can distinguish the capture frames from common frames easily and effectively.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for distinguishing dynamic snapshot frames. Background technique [0002] With the improvement of my country's comprehensive strength and national income level, motor vehicles are increasing rapidly at a rate of 10% to 20% every year, the pace of road construction is accelerating, and the level of urbanization in the country is also continuously improving. The contradiction between the current situation of traffic management and demand is further intensified. Criminal and public security cases related to traffic are also increasing year by year, especially driving along the highway after causing an accident or committing a crime, stealing and robbing motor vehicles, and driving in violation of regulations. [0003] The intelligent monitoring and recording system of public security checkpoint vehicles is very conducive to the continuous automatic record...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/017
CPCG08G1/0175
Inventor 陈务汤官华戈志明曹李军陈卫东
Owner SUZHOU KEDA TECH