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Machine Resolution, Optical Resolution

A nominal resolution specification for a flatbed scanner based on the actual number of pixels per inch in the sensor array and the number of individual steps per inch that the stepper motor can move the sensor array. This is to be distinguished from the maximum resolution specification that is based on resampling. This is also called optical resolution.

Committee
Video/Imaging Technology & Analysis
Date Added to Lexicon
Standard Source (Designation Number Title of Standard. Publisher, Place, Year.)
ANSI/ASTM E3235-21 Standard Practice for Latent Print Evidence Imaging Resolution. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2021. Source link
Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org