A method and system for slice position detection inside a scanner

Abstract

The present invention relates to a method and system for detecting the position of slices in a scanner. The preview image loaded with slices is photographed for grayscale, and the grayscale values ​​of the pixels in the first direction in the grayscale image are accumulated to obtain the first Array, calculate the first difference between the value of the mth number and the value of the m+ath number in all the first arrays, filter out the value p of m corresponding to the maximum value, and obtain the grayscale image in the second The collection of the grayscale values ​​of the p-bth to p+bth pixels in all the nth pixels in the direction, calculate the th Two difference values, filter the value t of q corresponding to the maximum value, combine the coordinate values ​​of the t-th pixel in the second direction in the grayscale image into a pixel position set, and perform all coordinate values ​​in the pixel position set. Linear fitting can obtain a straight line, which is convenient for precise positioning of slices, improves work efficiency and accuracy, and reduces costs.

Description

technical field [0001] The invention relates to the technical field of biological slice image processing, in particular to a method and a system for detecting slice positions inside a scanner. Background technique [0002] With the rise of pathological slide scanners, more and more hospitals use pathological slide scanners to obtain digital slides for easy preservation and browsing. In some special cases, doctors need to re-check some fields of view under the microscope when browsing the digital slices. At this time, coordinate mapping between the scanner and the microscope needs to be performed. The usual practice is to have a standard positioning slice. After positioning under the scanner preview camera and on the microscope, the corresponding coordinate mapping can be calculated. However, on high-throughput scanners, since the slice positions loaded on the platform are inconsistent each time, the previously calculated coordinate mapping relationship will have a certain d...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method and system for detecting the position of a slice inside a scanner, aiming to solve the technical problems in the prior art such as the deviation of the coordinate mapping between the scanner and the microscope caused by the instability of the slice loading position

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