An in-vehicle information system includes a camera and a controller that accept gesture input. A controller receives frames of video data and generates trajectory data for a movement of a hand in the video data. The controller uses a first hidden Markov model (HMM) to decode a sequence of strokes from the trajectory data, removes a starting and ending stroke to form an edited stroke sequence, and re-normalizes the strokes in the edited stroke sequence. The controller uses a second HMM corresponding to a predetermined set of characters to identify a character corresponding to the re-normalized edited stroke sequence.
SYSTEM AND METHOD FOR IDENTIFYING HANDWRITING GESTURES IN AN IN-VEHICLE INFROMATION SYSTEM
SYSTEM UND VERFAHREN ZUR IDENTIFIKATION VON HANDSCHRIFTGESTEN IN EINEM FAHRZEUGINTERNEN INFORMATIONSSYSTEM
SYSTÈME ET PROCÉDÉ PERMETTANT D'IDENTIFIER DES GESTES D'ÉCRITURE DANS UN SYSTÈME D'INFORMATIONS EMBARQUÉ DANS UN VÉHICULE
2018-06-13
Patent
Electronic Resource
English
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G06K Erkennen von Daten , RECOGNITION OF DATA / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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