METHOD AND APPARATUS FOR HANDWRITING RECOGNITION USING INVARIANT FEATURES

Patent №

US 5,768,420

Granted

1998-06-16

Filed 1995

Owner

AT&T CORP.

Lab

AI components

3

ml · vision · hardware

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

08525441

Handwriting recognition which is invariant with respect to translation, rotation and scale is achieved with a new feature signal, ratio of tangents, and a new application of the normalized curvature feature. Use of these features is optimized by augmenting the ratio of tangents with the sign of local curvature and weighing each feature signal with its relative discriminative power.

Machine learningVisionAI hardwareG06V 30/186G06V 30/196G06V 30/347G06V 30/10G10L 15/18

AI classification

Vision1.00
Machine learning0.99
AI hardware0.99
Natural language0.42
Speech0.21
Evolutionary computation0.02
Planning0.00
Knowledge representation0.00

Ownership

AT&T CORP.

assignment · 77380417

Assignors

BROWN, MICHAEL K., HU, JIANYING, TURIN, WILLIAM

On an employer assignment, the assignors are typically the inventors.

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