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Ultrasonic three-dimensional volume data online display and analysis method

An analysis method and volume data technology, applied in image data processing, instrument, character and pattern recognition, etc., can solve problems such as decreased efficiency and heavy workload of data analysts, and achieve the effect of improving feasibility and reliability

Active Publication Date: 2020-06-30
RES INST OF NUCLEAR POWER OPERATION +1
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  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the data analysts at the overhaul site have a heavy workload, and the efficiency will decrease accordingly

Method used

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Embodiment Construction

[0045] A method for online display and analysis of ultrasonic three-dimensional volume data, the method specifically includes the following steps:

[0046] Step 1, performing data compression on the ultrasonic three-dimensional volume data;

[0047] Using the multi-resolution ultrasonic volume data compression algorithm based on wavelet transform, data compression is performed on the original data in the CPU;

[0048] Step 1.1, performing three-dimensional data expansion on the original data;

[0049] Let the size of the original data be a*b*c, where 2 n-1 n , n is a positive integer, then fill the original data with 0 to 2 n *2 n *2 n scale;

[0050] Step 1.2, decompose the expanded data according to the three-layer wavelet to obtain the three-layer decomposition coefficient;

[0051] Step 1.3, retaining all the low-frequency data of the third layer, and zeroing the high-frequency data of all layers;

[0052] Step 1.4, divide the low-frequency data of the second layer ...

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Abstract

The invention relates to the technical field of three-dimensional data display, and particularly discloses an ultrasonic three-dimensional volume data online display and analysis method. The method comprises the steps of 1, performing data compression on ultrasonic three-dimensional volume data; 2, transmitting the compressed ultrasonic three-dimensional volume data to a GPU by using a data bus, and performing parallel decompression in the GPU; 3, directly carrying out multi-resolution rendering by using a light projection model; 4, utilizing an image processing algorithm and a machine learning algorithm to quickly process data in a three-dimensional space; 5, dividing an effective data area according to the typical defect spatial distribution characteristics of the nuclear equipment, andautomatically eliminating structural wave signals; and 6, performing classification identification and extraction on the space block data in the threshold range according to the probe acoustic beam correlation. According to the method, a user can clearly and visually observe the ultrasonic detection result of the detected object, and the feasibility and reliability of automatic ultrasonic signal analysis are improved by utilizing an automatic volume data analysis method.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional data display, and in particular relates to an online display and analysis method of ultrasonic three-dimensional volume data. Background technique [0002] Taking the overhaul of a nuclear power plant as an example, a complete overhaul process includes three stages: preliminary system preparation, mid-term data automatic collection, and post-data manual analysis. At present, only a high degree of automation can be realized in the middle stage, and only a low degree of automation can be realized in the early stage, and it can be completely completed manually in the later stage. Ultrasound data files of more than 30G and tens of thousands of 2D B-scan images collected during an overhaul required more than 400 person-hours of post-analysis and calculation work for ultrasonic analysts using manual observation. Analytical work requires extremely high levels of personnel skills, and the numbe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T5/00G06T5/40
CPCG06T5/40G06V40/172G06T5/70
Inventor 张益成冯美名王俊涛甘文军廖述圣廖思宇陈姝马奔宇
Owner RES INST OF NUCLEAR POWER OPERATION