EN ISO 16610-85:2013 PDF

Overview

EN ISO 16610-85:2013 - "Geometrical product specifications (GPS) - Filtration - Part 85: Morphological areal filters: Segmentation" defines terminology and concepts for areal morphological segmentation of continuous surfaces. It formalizes how surface regions (hills, dales, peaks, pits, saddle points, course/ridge lines) are identified and partitioned, and it specifies two principal methods: watershed segmentation and Wolf pruning. This part of the ISO 16610 series replaces the segmentation annex in ISO 25178-2 and is intended for surface texture and filtration applications within the GPS framework.

Key topics

• Areal segmentation concepts and terminology
  • Definitions of topographic features: peak, pit, Maxwellian hill/dale, saddle, contour line, etc.
  • Concepts of event and segmentation function (splitting events into significant and insignificant sets).
• Segmentation methods
  • Watershed segmentation: conceptual model using the “filling dales with water” metaphor to locate saddles where regions connect.
  • Wolf pruning method: strategy to prune or merge small/insignificant features after initial watershed segmentation.
• Scope and assumptions
  • Assumes a continuous surface representation (concepts apply to discretized data after appropriate triangulation).
  • Includes guidance on basic segmentation, detailed watershed implementation, and examples/annexes for practical interpretation.
• Normative references
  • Related standards cited include ISO 16610-1 and ISO 25178-2:2012 for terminology and surface texture parameters.

Applications

EN ISO 16610-85 is practical for professionals and systems that require robust areal surface partitioning and feature extraction, including:

• Quality control and surface inspection in manufacturing (optics, bearings, seals, machined parts)
• Surface metrology and surface texture characterization (areal measurements)
• Development of metrology software and algorithms (implementing morphological areal filters, watershed and pruning algorithms)
• Research in tribology, materials science, microscopy and additive manufacturing where surface topography segmentation is required

Who should use it

• Metrologists and standards engineers specifying GPS-based surface-analysis procedures
• Developers of surface measurement instruments and analysis software
• R&D and quality engineers performing surface characterization and feature-based filtering

Related standards

• ISO 16610 series (filtration methods)
• ISO 16610-1 (basic terminology for filtration)
• ISO 25178 series (areal surface texture terms and parameters)

EN ISO 16610-85 provides a standardized, interoperable foundation for areal morphological segmentation-helpful whenever reliable partitioning of surface topography into meaningful features is required for measurement, analysis, or specification.