A vison-based landing system comprises a processor onboard an aerial vehicle, an onboard vision sensor, onboard aiding sensors, and a data storage unit. The processor hosts an adaptive feature extraction module operative to perform a method that comprises capturing an image of a landing area having a plurality of edge features; calculating an estimated slope of an expected edge feature; calculating an expected gradient direction of the expected edge feature; selecting a horizontal basis kernel for the expected edge feature along an expected horizontal gradient; selecting a vertical basis kernel for the expected edge feature along an expected vertical gradient; calculating a combined convolution kernel for the expected edge feature based on the horizontal and vertical basis kernels, the estimated slope, and the expected gradient direction; and performing a convolution operation on the image using the combined convolution kernel to obtain an edge feature image of the landing area.


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    Titel :

    ADAPTIVE FEATURE EXTRACTION TO DETECT LETTERS AND EDGES ON VEHICLE LANDING SURFACES


    Weitere Titelangaben:

    ADAPTIVE MERKMALSEXTRAKTION ZUR ERKENNUNG VON BUCHSTABEN UND KANTEN AUF FAHRZEUGLANDEFLÄCHEN
    EXTRACTION DE CARACTÉRISTIQUES ADAPTATIVE POUR DÉTECTER DES LETTRES ET DES CONTOURS SUR DES SURFACES D'ATTERRISSAGE DE VÉHICULE


    Beteiligte:
    GUPTA NIKHIL (Autor:in) / DAS SHOUVIK (Autor:in)

    Erscheinungsdatum :

    2023-09-06


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G06V / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



    ADAPTIVE FEATURE EXTRACTION TO DETECT LETTERS AND EDGES ON VEHICLE LANDING SURFACES

    GUPTA NIKHIL / DAS SHOUVIK | Europäisches Patentamt | 2023

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