ISO/TS 20498-3:2020 PDF
Traditional Chinese medicine — Computerized tongue image analysis system — Part 3: Colour chart
Traditional Chinese medicine — Computerized tongue image analysis system — Part 3: Colour chart
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 9
- Дата публикации:
- 17 апреля 2020 г.
- Издание:
- ISO TS 20498 edition 1 version 1
- ICS:
- 11.040.99
This document specifies the colour character and appearance of the colour chart used in a computerized tongue image analysis system (CTIS). This document excludes diagnostic or clinical comparison to the colour chart.
Abstract
Overview
ISO/TS 20498-3:2020 - Traditional Chinese medicine - Computerized tongue image analysis system - Part 3: Colour chart specifies the colour characteristics and visual appearance of the 24‑patch reference chart used to evaluate colour reproduction in a Computerized Tongue Image Analysis System (CTIS). The technical specification defines physical, colourimetric and printing guidance for a standard colour chart used for device calibration and quality control. It explicitly excludes diagnostic or clinical comparisons to tongue colour.
Key topics and technical requirements
- Colour chart composition: 24 single‑colour patches (primary colours, greys, black/white, and 12 tongue shades). Two variants: with or without registration mark.
- Colourimetric accuracy: CIE Lab* coordinates provided for each patch at CIE illuminants D65 and D50. Measured colour difference requirement: **ΔE*ab
Технические детали
- Технический комитет
- ISO/TC 249 - Traditional Chinese medicine
- SKU
- ISO/TS 20498-3:2020
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