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Table 1 Comparison of existing machine vision system for chemical structure recognition. O and X denotes the availability of key features listed in the first column: O = Positive and X = Negative.

From: Automated extraction of chemical structure information from digital raster images

 

Kekule

IBM OROCS

CLiDE

OSRA

chemOCR

ChemReader

Written language

C++

C

C++

C++

Java

C++

Running Platform

MS windows

IBM OS/2

MS windows

Linux/MS Windows/OS X

Independent

MS Windows

Batch mode

X

X

O

O

O

O

Bond streo

O

X

O

O

O

O

Abbreviation Interpretation

O

X

O

O (limited)1

O

O

Chemical Knowledge

O

X

X

X

O

O

Document analysis

O

X

O

X

X

Under development

Automatic Extraction2

X

O

O

X

X

Under development

Open source

X

X

X

O

X

X

Customizable extensibility

X

X

X

O

O

O

  1. 1 OSRA has a hardcoded matching table to interpret only a few chemical abbreviations.
  2. 2 A functionality for extracting digitized images of chemical structure diagrams from scanned pages