Vorrichtung und Verfahren zur Erkennung eines Symbols auf einem Zweidimensionalen Speichermedium

Details

Veröffentlichungs-Nr.

EP3016019

Aktenzeichen

EP15190517

Anmeldetag

20. Oktober 2015

Veröffentlichung

18. Mai 2016

Rechtsraum

EP

IPC

G06K7/00G06K7/10G06K7/14G06N7/00// G11B20/10

Abstract

The invention relates to an apparatus and method for detecting a symbol from a set of readout values from a local neighborhood of a two-dimensional storage medium (4), comprising the steps of: evaluating a joint probability distribution (p(Y|Ai)) for a given observation and a complete set of data patterns (Ai) in the local neighborhood; choose as detection output a weighted average of the center values of the data patterns (Ai), using the values of the associated joint probability distribution (p(Y|Ai)) as weights; wherein the joint probability distribution (p(Y|Ai)) is a multi variant Gaussian probability distribution which employs vectorial observations (Y), vectorial averages (µ), and covariance matrixes (C).

Anmelder

Firma

Thomson Licensing

Land

🇫🇷 Frankreich

Fachgebiete