Feature

Device reads 2D matrix and challenging DPM codes without visible perimeters

Cognex Corporation's new PowerGrid technology is a texture-based location algorithm that takes a novel inside-out approach to reading 2D matrix and Direct Part Mark (DPM) codes.

15/02/2015 16:33:58

While conventional feature-based algorithms start by locating the finder pattern, Cognex’s PowerGrid technology looks for a pattern of alternating light and dark modules within the code.

The technology increases read rates in 2D barcode-reading applications where a part’s geometry, poor lighting, occlusion, or print-registration errors make it difficult to capture an image of the entire code.

It can locate and read codes even where there is significant damage to, or complete elimination of, the finder pattern, clocking pattern, or quiet zone.

PowerGrid technology is now available on the X models of the DataMan 300 series fixed-mount barcode readers.

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.