EP-4660938-B1 - METHOD AND APPARATUS FOR MONITORING SCANNING ROD STATUS, STORAGE MEDIUM, AND ELECTRONIC DEVICE

EP4660938B1EP 4660938 B1EP4660938 B1EP 4660938B1EP-4660938-B1

Inventors

MA, CHAO
ZHAO, Xiaobo
CHEN, XIAOJUN
FU, Xiaopeng
XIAO, Shujuan

Dates

Publication Date: 20260513
Application Date: 20241203

Claims (14)

A method for monitoring an intraoral scanning rod status, comprising: acquiring scanning information of a scanning rod; and updating and acquiring status information of the scanning rod based on the scanning information of the scanning rod to determine status of the scanning rod; wherein the acquiring the scanning information of the scanning rod comprises: scanning the scanning rod through a scanning apparatus in response to a scanning start instruction to acquire image information of the scanning rod; and the status information comprises: image quality information, and the updating and acquiring status information of the scanning rod based on the scanning information of the scanning rod comprises: acquiring the image quality information of the scanning rod based on the image information of the scanning rod, comprises: determining a gray value contrast between an identification point and a background region of the scanning rod in the image information, and determining the image clarity of the image information based on the gray value contrast; and determining smoothness of an edge line of the identification point of the scanning rod in the image information, and determining the image clarity of the image information based on the smoothness; and determining the image quality information of the scanning rod based on the image clarity; wherein the determining the image clarity of the image information based on the gray value contrast and the smoothness comprises: determining a first weight corresponding to the gray value contrast and a second weight corresponding to the smoothness; determining a first product of the gray value contrast and the first weight, and a second product of the smoothness and the second weight; and taking a sum of the first product and the second product as a clarity value for representing the image clarity.
The method as claimed in claim 1, wherein the status information further comprises: image quality warning information; and the method further comprises: sending the image quality warning information to a user if the image quality information indicates that the status of the scanning rod is abnormal in quality in a process of scanning the scanning rod; and displaying the image quality information and the image quality warning information after the scanning is completed.
The method as claimed in claim 1, wherein the acquiring the image quality information of the scanning rod based on the image information of the scanning rod comprises: performing reconstruction based on the image information to obtain scanning rod three-dimensional data of the scanning rod; and determining the image quality information of the scanning rod based on the scanning rod three-dimensional data; and/or, performing reconstruction based on the image information to obtain identification point three-dimensional data of the scanning rod; and determining the image quality information of the scanning rod based on the identification point three-dimensional data.
The method as claimed in claim 1, wherein the determining the image quality information of the scanning rod based on the image clarity comprises: determining a first comparison result between the clarity value and a preset clarity threshold; determining that the image quality information indicates that the scanning rod is normal in quality if the first comparison result indicates that the clarity value is greater than or equal to the clarity threshold; and determining that the image quality information indicates that the scanning rod is abnormal in quality if the first comparison result indicates that the clarity value is less than the clarity threshold.
The method as claimed in claim 3, wherein the determining the image quality information of the scanning rod based on the scanning rod three-dimensional data and the identification point three-dimensional data further comprises: determining standard three-dimensional data corresponding to the scanning rod pre-stored in a scanning rod database, wherein the standard three-dimensional data comprises: standard scanning rod three-dimensional data for representing a surface profile of the scanning rod, and standard identification point three-dimensional data for representing an identification point of the scanning rod; respectively comparing the scanning rod three-dimensional data with the standard scanning rod three-dimensional data, and the identification point three-dimensional data with the standard identification point three-dimensional data to obtain a three-dimensional coordinate deviation value; and determining the image quality information of the scanning rod based on the three-dimensional coordinate deviation value.
The method as claimed in claim 5, wherein the determining the image quality information of the scanning rod based on the three-dimensional coordinate deviation value comprises: determining a second comparison result between the three-dimensional coordinate deviation value and a preset deviation value threshold; determining that the image quality information indicates that the scanning rod is abnormal in quality if the second comparison result indicates that the three-dimensional coordinate deviation value is greater than or equal to the deviation value threshold; and determining that the image quality information indicates that the scanning rod is normal in quality if the second comparison result indicates that the three-dimensional coordinate deviation value is less than the deviation value threshold.
The method as claimed in claim 1, the method further comprises: acquiring a use record of the scanning rod, wherein the use record is inputted by a user through an input device, acquired before the scanning rod is scanned and/or in a process of scanning the scanning rod; acquiring use frequency of the scanning rod based on the use record; and determining the status information of the scanning rod based on the use frequency of the scanning rod.
The method as claimed in claim 7, wherein the determining the status information of the scanning rod based on the use frequency of the scanning rod comprises: determining a first comparison result between the use frequency and a preset use frequency threshold; determining that the status of the scanning rod is normal in quality if the first comparison result indicates that the use frequency is less than the preset use frequency threshold; and determining that the status of the scanning rod is abnormal in quality if the first comparison result indicates that the use frequency is greater than or equal to the preset use frequency threshold.
The method as claimed in claim 1, wherein the acquiring scanning information of the scanning rod further comprises: regularly monitoring the scanning rod according to a preset self-check period through the scanning apparatus in response to a first instruction to obtain self-check scanning information, and updating and acquiring the status information of the scanning rod based on the self-check scanning information of the scanning rod to determine the status of the scanning rod, wherein the first instruction is used for indicating the scanning apparatus to monitor the status of the scanning rod based on a regular self-check mode.
The method as claimed in claim 9, wherein the acquiring scanning information of the scanning rod further comprises: regularly monitoring the scanning rod according to a preset polling period through the scanning apparatus in response to a second instruction to obtain polling scanning information, wherein the second instruction is used for indicating the scanning apparatus to scan the scanning rod based on a regular polling mode, monitoring items of the regular polling mode are more than monitoring items corresponding to the regular self-check mode, and a monitoring period corresponding to the preset polling period is different from a monitoring period corresponding to the preset self-check period.
The method as claimed in any one of claims 1 to 10, the method further comprises: sending warning information to a user in a case that it is determined that the status of the scanning rod is abnormal in quality, wherein the abnormal in quality is used for representing that current status of the scanning rod does not reach a preset status standard.
The method as claimed in any one of claims 1 to 10, the method further comprises: setting a wear maintenance process based on the scanning rod, wherein the wear maintenance process is used for maintaining expected wear or faults of the scanning rod under preset conditions, and maintenance comprises at least one of the following: device detection, repair, replacement of parts, and replacement of the scanning rod; and triggering and starting the wear maintenance process in a case that it is determined that the status of the scanning rod is abnormal in quality.
The method as claimed in claim 1, the method further comprises: displaying the status information through a client of a user in response to a status information display instruction of the user.
A computer-readable storage medium, storing a computer program, the computer program, when executed by a processor, implements the method as claimed in any one of claims 1 to 13.

Description

Cross-Reference to Related Application This application claims priority to Chinese Patent Application No. 202410707423.0, filed to the China National Intellectual Property Administration on June, 3, 2024 and entitled "Method and Apparatus for Monitoring Scanning Rod Status, Storage Medium, and Electronic Device". Technical Field The present disclosure relates to the technical field of intraoral scanning, specifically to, a method and apparatus for monitoring a scanning rod status, a storage medium, and an electronic device. Background During the use of an intraoral implant scanning device (referred to as a scanning rod below) in an oral hospital or clinic, it is difficult for a user to have professional knowledge to maintain the scanning rod, and the user also lacks the ability to distinguish the use status and wear of the scanning rod. On the one hand, the use of a scanning rod with excessive wear may result in low accuracy of the data acquired by a scan body during scanning; and on the other hand, incorrect use habits and lack of maintenance may ultimately lead to a decrease in the service life of the scanning rod, resulting in unnecessary waste of procurement costs. An evaluation of the influence of implant scanbody (ISB) wear on the accuracy of digital impressions is proposed in the study of Arcuri Lorenzo et al.: "Influence of Implant Scanbody Wear on the Accuracy of Digital Impression for Complete-Arch: A Randomized In Vitro Trial", Materials 2022, 15(3), 927, published 25 January 2022. Summary The invention is set out in the appended set of claims. Embodiments of the present disclosure provide a method and apparatus for monitoring a scanning rod status, a storage medium, and an electronic device. By monitoring and managing the status of the scanning rod, a technical effect of ensuring normal operation of the scanning rod can be achieved. According to a first aspect, embodiments of the present disclosure provide a method for monitoring a scanning rod status, including: acquiring scanning information of the scanning rod; andupdating and acquiring status information of the scanning rod based on the scanning information of the scanning rod to determine status of the scanning rod. In some embodiments of the present disclosure, in a possible implementation of the first aspect, the acquiring scanning information of the scanning rod includes: scanning the scanning rod through a scanning apparatus in response to a scanning start instruction to acquire image information of the scanning rod; andthe status information includes: image quality information, and the updating and acquiring status information of the scanning rod based on the scanning information of the scanning rod includes: acquiring the image quality information of the scanning rod based on the image information of the scanning rod. In some embodiments of the present disclosure, in a possible implementation of the first aspect, the status information further includes: image quality warning information; and the method further includes: sending the image quality warning information to a user if the image quality information indicates that the status of the scanning rod is abnormal in quality in a process of scanning the scanning rod; anddisplaying the image quality information and the image quality warning information after the scanning is completed. In some embodiments of the present disclosure, in a possible implementation of the first aspect, the acquiring the image quality information of the scanning rod based on the image information of the scanning rod includes: determining the image quality information of the scanning rod based on image clarity of the image information;performing reconstruction based on the image information to obtain scanning rod three-dimensional data of the scanning rod; and determining the image quality information of the scanning rod based on the scanning rod three-dimensional data; and/or,performing reconstruction based on the image information to obtain identification point three-dimensional data of the scanning rod; and determining the image quality information of the scanning rod based on the identification point three-dimensional data. In some embodiments of the present disclosure, in a possible implementation of the first aspect, the determining the image quality information of the scanning rod based on image clarity of the image information includes: determining a gray value contrast between an identification point and a background region of the scanning rod in the image information, and determining the image clarity of the image information based on the gray value contrast; and/or,determining smoothness of an edge line of the identification point of the scanning rod in the image information, and determining the image clarity of the image information based on the smoothness; anddetermining the image quality information of the scanning rod based on the image clarity. In some embodiments of the present disclosure, in