To crop an image under uniform conditions from an image in which a target vehicle appears in a technology that recognizes the name of the target vehicle in the image using machine learning.SOLUTION: An automobile name recognition device 100 includes a pixel count detection unit 133 and an automobile name estimation unit 134. The pixel count detection unit 133 detects the number of horizontal direction pixels of a license plate detected from a target image and the number of vertical direction pixels of the license plate. The automobile name estimation unit 134 crops an image from the target image within a range that satisfies the cropping conditions which are the conditions indicating that the image is cropped so that each portion of the vehicle comprising a group of feature portions comprising at least one portion of the vehicle having a feature that is a clue to identifying the automobile name is included, and indicating a range determined according to an edge with a length that is a horizontal constant times the number of horizontal pixels along a horizontal direction and an edge with a length that is a vertical constant times the number of vertical pixels along a vertical direction.SELECTED DRAWING: Figure 1

    【課題】画像に映っている対象車両の車名を機械学習を用いて認識する技術において、対象車両が映っている画像から均一な条件で画像を切り出したい。【解決手段】車名認識装置100は、画素数検出部133と車名推定部134とを備える。画素数検出部133は、対象画像から検出されたナンバープレートの横方向画素数と、当該ナンバープレートの縦方向画素数とを検出する。車名推定部134は、車名を特定する手掛かりとなる特徴を有する少なくとも1つの車両部位から成る特徴部位群を構成する各車両部位が含まれるように画像を切り出すことを示す条件であって、横方向に沿う横方向画素数の横方向定数倍の長さの辺と、縦方向に沿う縦方向画素数の縦方向定数倍の長さの辺とに応じて定まる範囲を示す条件である切り出し条件を満たす範囲の画像を対象画像から切り出す。【選択図】図1


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    Title :

    AUTOMOBILE NAME RECOGNITION DEVICE, AUTOMOBILE NAME RECOGNITION METHOD, AND AUTOMOBILE NAME RECOGNITION PROGRAM


    Additional title:

    車名認識装置、車名認識方法、及び車名認識プログラム


    Contributors:

    Publication date :

    2025-04-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS




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