ECMA-420

This Ecma standard specifies the device interface information and requirements for high-speed image retrieval and collation using holographic optical correlation based on shift-multiplex recording of coaxial holography.

This standard specifies:

• operating environments
• holographic optical correlation
• holographic optical correlation system
• recording information for hologram database creation
• readout information for collation
• report information.

This standard is mainly used in professional fields, especially high-speed movie picture retrieval system to detect illegal and/or specific pictures.