Motion state discrimination and motion positioning method, system and device, and storage medium

A technology of motion state and positioning method, applied in image data processing, instrumentation, calculation, etc., can solve problems such as poor product consistency, low manual operation production efficiency, and operator fatigue, so as to improve production efficiency and save preparation time , the effect of reducing complexity

Pending Publication Date: 2022-04-12
UNIV OF SCI & TECH OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned manual process requires human eyes to judge whether it is coaxially rotated or not, and to perform axial movement positioning of the workpiece, which requires a large investment of mental and physical labor. On the one hand, the operator is more prone to fatigue; on the other hand, there is no objective criterion. Subjective judgment is required, the production efficiency of manual operation is not high, and the product consistency is poor

Method used

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  • Motion state discrimination and motion positioning method, system and device, and storage medium
  • Motion state discrimination and motion positioning method, system and device, and storage medium
  • Motion state discrimination and motion positioning method, system and device, and storage medium

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Experimental program
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Embodiment 1

[0031] Such as image 3 As shown, a motion state discrimination and motion location method mainly includes the following steps:

[0032] Step 1. Collect the rotating image of the workpiece, and use the method of visual processing to judge whether the rotating state of the workpiece is coaxial.

[0033] The preferred implementation of this step is as follows:

[0034] Step a, determine the pattern like block B of the initial video frame 0 , that is, the image block containing the pivot point of the workpiece (that is, the central point of the vertebral canal mentioned above); let: the maximum number of motion frames used for detection is N, the maximum time is T, and the video frame number i=0.

[0035] Step b, calculate the initial video frame mode like block B 0 mean of m 0 .

[0036] Step c, let M=(((m 0 +m i ) / 2-m 0 )t )? 1:0, where m i is the mean value of the corresponding pattern block in the i-th frame, m t is the mean threshold; in the above formula, if ((m ...

Embodiment 2

[0068] The present invention also provides a motion state discrimination and motion positioning system, which is mainly implemented based on the methods provided in the foregoing embodiments, such as Figure 7 As shown, the system mainly includes:

[0069] The motion state discrimination unit is used to collect the rotation image of the workpiece, and use the method of visual processing to judge whether the rotation state of the workpiece is coaxial;

[0070] The motion positioning unit is used to estimate the range of the video frame where the workpiece axis target is located by using a digital image processing method when the workpiece rotation state is non-coaxial rotation, and detect the workpiece axis target based on the pattern characteristics of the workpiece axis target.

[0071] Those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional modules is used as an example for illus...

Embodiment 3

[0073] The present invention also provides a processing device, such as Figure 8 As shown, it mainly includes: one or more processors; memory for storing one or more programs; wherein, when the one or more programs are executed by the one or more processors, the One or more processors implement the methods provided in the foregoing embodiments.

[0074] Further, the processing device further includes at least one input device and at least one output device; in the processing device, the processor, memory, input device, and output device are connected through a bus.

[0075] In the embodiment of the present invention, the specific types of the memory, input device and output device are not limited; for example:

[0076] The input device can be a touch screen, an image acquisition device, a physical button or a mouse, etc.;

[0077] The output device can be a display terminal;

[0078] The memory may be random access memory (Random Access Memory, RAM), or non-volatile memory...

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Abstract

The invention discloses a motion state judgment and motion positioning method, system and equipment and a storage medium, and aims to quickly judge whether a workpiece is coaxially rotated or not by applying a machine vision method, namely whether the workpiece is mounted in place or not, so that the preparation time before machining is saved; according to the method, the motion estimation of the target is converted into a rapid positioning algorithm of a specific target mode, so that the complexity of the algorithm is reduced, in addition, a digital image processing method is applied, priori knowledge and complete target mode characteristics are effectively utilized, rapid and accurate positioning and tracking of the target can be realized, the production efficiency is improved, and the product consistency is guaranteed.

Description

technical field [0001] The present invention relates to the technical field of motion state discrimination and motion positioning, in particular to a motion state discrimination and motion positioning method, system, device and storage medium. Background technique [0002] In ceramic micromachining, the workpiece is cut through the rotation of the fixture. On the one hand, the state of workpiece rotation, such as coaxial rotation or not, will directly affect the quality of workpiece processing (generally, coaxial rotation is required); on the other hand, when it is necessary to adjust the offset of non-coaxial rotating workpieces When , it is necessary to obtain the offset of non-coaxial rotation, which is generally equivalent to the radius of the trajectory circle of the axis rotation of the workpiece in practical applications, such as figure 1 As shown, this radius or offset needs to be realized by fast motion positioning and tracking of the workpiece axis. [0003] At p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/246
Inventor 倪林王宁谭毅成韩永强
Owner UNIV OF SCI & TECH OF CHINA
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