GB/T 26958.60-2023Geometrical product specifications (GPS) - Filtration - Part 60: Linear areal filters - Basic concepts (English PDF)

Foreword

This document was issued on 17 March 2023 by the State Administration for Market Regulation; Standardization Administration of the PRC and takes effect on 1 October 2023.

It is a GB/T standard: recommended rather than compulsory, but it is the text a Chinese reviewer applies when assessing a submission.

It is classified under ICS 17.040.20, Chinese classification J04.

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1. Structure and Drafting Rules for Standardization Documents"

drafting.

This document is part 60 of GB/T 26958 "Geometric Specifications for Products (GPS) Filtering". GB/T 26958 has been released

The following sections.

--- Part 1. Overview and basic concepts;

--- Part 20. Basic concepts of linear contour filters;

--- Part 21. Linear contour filter Gaussian filter;

--- Part 22. Linear contour filter spline filter;

--- Part 28. Contour filter end effect;

--- Part 29. Linear contour filter spline wavelet;

--- Part 30. Basic concepts of robust contour filters;

--- Part 31. Robust contour filter Gaussian regression filter;

--- Part 32. Robust contour filter spline filter;

--- Part 40. Basic concepts of morphological contour filters;

--- Part 41. Morphological contour filter disc and horizontal line segment filter;

--- Part 49. Morphological contour filter scale space technology;

--- Part 60. Basic concepts of linear region filters;

--- Part 61. Linear region filter Gaussian filter;

--- Part 71. Robust region filter Gaussian regression filter;

--- Part 85. Morphological region filter segmentation.

This document is equivalent to ISO 16610-60.2015 "Geometric Product Specifications (GPS) Filtering Part 60. Linear Region Filtering

Basic Device Concepts".

Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents.

This document is proposed and managed by the National Product Geometric Technical Specification Standardization Technical Committee (SAC/TC240).

This document is drafted by. AMETEK Trading (Shanghai) Co., Ltd., Tsinghua University, Heilongjiang Provincial Institute of Metrology and Testing, and China Mechanical Engineering

Productivity Promotion Center Co., Ltd., Xiamen Wanming Electronics Co., Ltd., Shenzhen China Institute of Metrology Technology Innovation Research Institute, China Machine Research and Standardization Co., Ltd.

Quasi Technology Research Institute (Beijing) Co., Ltd., Guangdong Jinya Technology Co., Ltd., Guangdong Yingde Digital Technology Co., Ltd., Xi'an Kaiyijin Electronics

Technology Co., Ltd., Shaanxi Yateny Electronics Co., Ltd.

The main drafters of this document. Zhang Tong, Zhang Zhen, Zhou Tong, Ming Cuixin, Zeng Li, Wang Shuangying, Yu Qianqian, Zhu Yue, Yu Minming, Zhang Dejun, Zhang Zhijin,

Xiang Mei and Quan Yongde.

Introduction

In the process of analyzing the feature information of product surface topography and roughness, the filter model, filter parameters, filter transmission characteristics, table

There are no consistent standards and specifications for the separation, extraction and reconstruction of long-wave components and short-wave components of surface profiles, and the treatment of end effects.

In line with the concept requirements of the GPS consistent specification. Focus on the processing technology and filtering of surface roughness feature information with Gaussian statistical distribution

Method to build a new generation of GPS surface roughness filtering specification system.

GB/T 26958 "Geometric Technical Specifications for Products (GPS) Filtering" is based on the new generation of GPS product geometric

It provides a complete set of filtering calculation tools, which can be used together with other calculation tools to ensure the smooth and reasonable progress of product specification and certification.

Filtering is widely used in surface topography measurement and analysis, and has become an important analysis tool for existing surface topography measurement instruments. GB/T 26958

The formulation and implementation of the system, the measurement and analysis of surface topography information in the manufacturing field, provide a unified standard for the development and application standardization of related instruments.

Fan support. The formulation of this standard is conducive to improving the diversified surface topography analysis tools, improving the quality and performance of the enterprise's products and international competition.

competitiveness.

GB/T 26958 consists of 16 parts.

--- Part 1. Overview and basic concepts. The purpose is to specify the basic terms of GPS filtering and the basic flow used by GPS filtering

program framework.

--- Part 20. Basic concepts of linear contour filters. The purpose is to specify the basic concept of linear contour filters.

--- Part 21. Linear contour filter Gaussian filter. The purpose is to specify the metrological characteristics of the Gaussian filter used for contour filtering.

A method for separating the long-wave and short-wave components of the surface profile is given.

--- Part 22. Linear contour filter spline filter. The purpose is to specify spline filters for contour filtering, especially

Shows how to separate the longwave and shortwave components of a profile.

--- Part 28. Contour filter end effect. A method to deal with end effect of linear contour filter is presented.

--- Part 29. Linear contour filter spline wavelet. The purpose is to specify the spline wavelet and related concepts for contour filtering.

In this paper, the basic terms and applications of compactly supported spline wavelets are given.

--- Part 30. Basic concepts of robust contour filters. The purpose is to specify the basic concept of robust contour filters.

--- Part 31. Robust contour filter Gaussian regression filter. The purpose is to specify the discrete robust Gaussian regression filter

characteristic.

--- Part 32. Robust contour filter spline filter. The purpose is to specify a robust spline filter suitable for surface contours

properties, and a detailed method for separating the long-wave and short-wave components of the surface profile.

--- Part 40. Basic concepts of morphological contour filters. The purpose is to specify morphological operations and filters, including envelope filtering

Basic terminology and concepts of oscilloscopes.

--- Part 41. Morphological contour filter disc and horizontal line segment filter. The purpose is to stipulate the use of disks and horizontal line segments to construct

Techniques for element-wise computation of morphological filters including envelope filters.

--- Part 49. Morphological contour filter scale space techniques. The purpose is to specify the shape-scale space technology, and to give the scale

Basic terminology and usage of dimensional space technology.

--- Part 60. Basic concepts of linear region filters. The purpose is to specify the basic concept of linear domain filters.

--- Part 61. Linear region filter Gaussian filter. The purpose is to specify the linear domain Gaussian filter, in particular the

How to separate the longwave and shortwave components of a surface.

--- Part 71. Robust region filter Gaussian regression filter. The purpose is to specify the characteristics of the robust domain Gaussian regression filter.

properties, especially methods for separating the large-scale and small-scale lateral components of a surface.

--- Part 85. Morphological region filter segmentation. The purpose is to establish terms and concepts related to the morphological segmentation of regions. Fake

As a continuous surface, in particular the watershed segmentation algorithm and the Wolfe pruning algorithm are described.

Product Geometry Specification (GPS) Filtering

Part 60. Basic Concepts of Linear Region Filters

1 Scope

GB/T 26958.60-2023 is the part of the GB/T 26958 filtration series that fixes the basic concepts for linear areal filters, the filters used to separate a measured surface into the long-wave and short-wave components from which roughness, waviness and form are each read. After the scope, the normative references and the terms, which build on the ISO 16610 filtration vocabulary, clause 4 sets out the basic concepts and clause 5 treats the linear region filters themselves. Three informative appendices follow: a conceptual diagram, the relationship with the filter matrix model, and the relationship with the GPS matrix model, which is how a filtration part is tied back to the wider geometrical product specification framework. The reason a concepts part exists is practical: the filter model, the filter parameters, the transmission characteristics, the way long-wave and short-wave components are separated, extracted and reconstructed, and the handling of end effects at the limits of a measured area have all been described inconsistently, so two laboratories measuring the same surface can report different texture values with neither making an error of its own. Useful to metrology laboratories, to makers of surface measuring instruments and analysis software, and to engineers who call up filtered surface parameters on drawings.

This document specifies the basic concepts of linear domain filters.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references

For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to

this document.

ISO 16610-1 Geometric product specification (GPS) filtering Part 1. Overview and basic concepts [Geometricalproduct

Note. GB /Z 26958.1-2011 Product Geometric Specifications (GPS) Filtering Part 1. Overview and Basic Concepts (ISO /T S16610-1.2006,

IDT)

ISO 16610-20 Product Geometric Specifications (GPS) Filtering Part 20. Basic Concepts of Linear Profile Filters [Geo-

Note. GB /Z 26958.20-2011 Product Geometric Specifications (GPS) Filtering Part 20. Basic Concepts of Linear Profile Filters

(ISO /T S16610-20.2006, IDT)

ISO 16610-21 Product Geometric Specifications (GPS) Filtering Part 21. Linear Profile Filter Gaussian Filter

Note. GB/T 26958.21-2020 Product Geometric Specifications (GPS) Filtering Part 21. Linear Profile Filter Gaussian Filter

(ISO 16610-21.2011, IDT)

3 Terms and Definitions

As defined in ISO 16610-1, ISO 16610-20, ISO 16610-21 and ISO /IEC Guide 99 and the following terms and definitions apply

in this document.

3.1

Linear area filter lineararealfilter

An area filter that decomposes a surface into long-wave and short-wave components using a linear function.

Note 1. If F is a function, X and Y are surfaces, when F is a linear function, there is F(aX bY)=aF(X) bF(Y).

Note 2. The linear area filter is applicable to the surface of a specific coordinate system, such as planar and cylindrical surfaces.

Note 3. Linear domain filters include Gaussian, spline, spline wavelet and complex wavelet filters.

3.1.1

Linear planar filter linearplanarfilter

A linear domain filter (3.1) that decomposes a surface with a plane as a reference plane into long-wave and short-wave components.

NOTE. Planar surfaces are open to any direction.