Unlock instant, AI-driven research and patent intelligence for your innovation.

A method of scanning and splicing with precise calculation of pore rate

An application method and technology of porosity, applied in the field of optics, can solve the problems of unguaranteed accuracy, slow image output rate, unsuitable accuracy, etc., to achieve improved efficiency and porosity calculation efficiency, reduce overlap rate, The effect of improving adaptability

Active Publication Date: 2022-08-09
TIANJIN LIZHONG GRP CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The detection of porosity needs to obtain multiple images in the target field of view under a multi-fold mirror, and manually stitch and process and calculate the porosity in the images. The accuracy of porosity calculation cannot be guaranteed. First, how to determine the size of the target field of view , how to determine the locking position of the target field of view can ensure that the target field of view is used to evaluate the porosity of the sample with sufficient reliability; the second is the stitching accuracy of multiple images in the target field of view, and the shooting path of each sub-image determines the stitching quality , how to formulate the shooting scanning path and method, while ensuring that the complete image in the target field of view is fully obtained, and at the same time reduce the overlap rate as much as possible, reduce the number of sub-images, and reduce the engineering workload of the calculation; The accuracy of the acquisition method is insufficient, and the overlap rate calculation needs to be performed before the image stitching, the image output rate is slow, and the accuracy achieved by this method is not suitable for the accuracy required for the porosity calculation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method of scanning and splicing with precise calculation of pore rate
  • A method of scanning and splicing with precise calculation of pore rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The application method of scanning and splicing for accurately measuring the porosity of the present invention is used in the image processing of measuring the porosity of the material tissue, and it includes the following steps:

[0025] a. Automatically focus under the condition of low magnification observation, and use the acquisition camera to take a complete image of the sample, and use anisotropic diffusion filtering to retain the edge of the image for the overall image area S 试样 Calculate, according to the shape and grayscale parameters in the empirical database, highlight the impurity noise area, and set the defect parameters according to the empirical data of the pore size of the corresponding material structure, highlight the defect position of the abnormal pores, according to the formula S 子 =S 试样 / k (1≤k≤3) Set the preset target field of view frame, avoid or include the least impurity noise area and defect position, select the best measurement area, and auto...

Embodiment 2

[0031] The application method of scanning and splicing for accurately measuring the porosity of the present invention is used in the image processing of measuring the porosity of the material tissue, and it includes the following steps:

[0032] a. Automatically focus under the condition of low magnification observation, and use the acquisition camera to take a complete image of the sample, and use anisotropic diffusion filtering to retain the edge of the image for the overall image area S 试样 Calculate, according to the shape and grayscale parameters in the empirical database, highlight the impurity noise area, and set the defect parameters according to the empirical data of the pore size of the corresponding material structure, highlight the defect position of the abnormal pores, according to the formula S 子 =S 试样 / k (1≤k≤3) Set the preset target field of view frame, avoid or include the least impurity noise area and defect position, select the best measurement area, and autom...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention proposes a scanning and splicing application method for accurately measuring porosity, including: a. collecting a complete image at a low magnification, determining the target field of view specification and coordinates, b. determining the moving step size of the scanning system, c. calibrating at a high magnification equipment, determine the scanning coordinates of the target field of view, move the scanning system N-1 step distance from the starting point to the X direction, take the first horizontal sub-region image, move N steps distance, take the second horizontal sub-region image, calculate the overlap area, correct the X-direction error of the scanning system, correct the Y-direction error of the scanning system in the same way, and complete the self-calibration of the scanning system. d. Start the serpentine scanning scanning sub-area from the scanning starting point, and directly perform sequential splicing to obtain the complete target field of view Image, e, and binary extraction methods process the image of the target field of view and calculate the porosity; the scanning and stitching application method of the present invention can reduce the calculation amount and improve the efficiency of image stitching, and at the same time meet the requirements of accurate calculation of the porosity of the material tissue.

Description

technical field [0001] The invention belongs to the field of optical technology, in particular to a scanning and splicing application method for accurately measuring porosity. Background technique [0002] The detection of porosity needs to obtain multiple images in the target field of view under a multi-magnification mirror, and manually post-process and calculate the porosity in the images. The accuracy of the porosity calculation cannot be guaranteed. First, how to determine the size of the target field of view , how to determine the locking position of the target field of view, so as to ensure that the target field of view can be used to evaluate the sample porosity with sufficient reliability; the second is the stitching accuracy of multiple images in the target field of view, and the shooting path of each sub-image determines the stitching quality. , how to formulate the scanning path and method to ensure that the complete image in the target field of view can be fully...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/08G06T3/40G06T7/00G06T7/13
CPCG01N15/088G06T3/4038G06T7/0004G06T7/13Y02A90/30
Inventor 刘峰邱立宝韩建勋张晓光唐永东张川钮成章王重阳邹杰冯啸张占杰周向东
Owner TIANJIN LIZHONG GRP CO LTD