To provide an image analysis method which improves vehicle detection accuracy by determining a parking state on the basis of a type of a vehicle.SOLUTION: An image analysis method for analyzing a parking state of a vehicle in a parking area from an image obtained by imaging the parking area comprises: a first acquisition step of acquiring an image; a second acquisition step of acquiring parking area information being information about the parking area; a detection step of detecting a region where the vehicle exists and the type of the vehicle from the image and outputting the detection result; a third acquisition step of acquiring an occupation possible region being a region occupied by a parking vehicle parked for each vehicle chamber of the parking area on the basis of the parking area information and the detection result; an estimation step of comparing the occupation possible region with the region where the vehicle exists and estimating the overlapping degree; and a first determination step of comparing the overlapping degree with a prescribed threshold and determining the parking state of the vehicle for each vehicle chamber of the parking area.SELECTED DRAWING: Figure 18
【課題】車両の種類に基づいて、駐車状況を判定することで車両検出精度を向上する画像解析方法を提供する。【解決手段】駐車場が撮影されている画像から駐車場における車両の駐車状態を解析する画像解析方法であって、画像を取得する第1の取得工程と、駐車場の情報である駐車場情報を取得する第2の取得工程と、画像から車両の存在する領域と車両の種類を検出し、検出結果を出力する検出工程と、駐車場情報と検出結果に基づいて、駐車場の車室毎に駐車されている駐車車両が占める領域である占有可能領域を取得する第3の取得工程と、占有可能領域と車両の存在する領域とを比較し、重複度を推定する推定工程と、重複度と所定の閾値とを比較し、駐車場の車室毎における車両の駐車状態を判定する第1の判定工程と、を有する、ことを特徴とする。【選択図】図18
IMAGE ANALYSIS METHOD, PROGRAM, IMAGE ANALYSIS DEVICE AND IMAGE ANALYSIS SYSTEM
画像解析方法、プログラム、画像解析装置、及び画像解析システム
2024-02-21
Patent
Electronic Resource
Japanese
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