SURFACE EVALUATION METHOD, SURFACE EVALUATION DEVICE, AND EVALUATION MODEL STORAGE DEVICE

To provide a surface evaluation method, a surface evaluation device and an evaluation model storage device for remotely evaluating a surface condition of a structure by using a photographed image.SOLUTION: In the case of evaluating a surface condition of an evaluation target surface by using a photographed image of a wall surface 30, the surface condition is recorded in association with resolution and light feature quantity of a pixel in a crack scale information storage part 22, a reference image for specifying a photographed surface is projected onto the evaluation target surface, a photographed image of the evaluation target surface including the reference image is acquired, the resolution of pixels included in the photographed image is calculated on the basis of the arrangement of the reference image included in the photographed image, and a surface condition of the wall surface 30 is evaluated on the basis of the resolution and the light feature quantity of pixels included in the photographed image by using the crack scale information storage part 22.SELECTED DRAWING: Figure 1 【課題】撮影画像を用いて、遠方から構造物の表面状態を評価するための表面評価方法、表面評価装置及び評価モデル記憶装置を提供する。【解決手段】壁面３０の撮影画像を用いて、評価対象面の表面状態を評価する場合、クラックスケール情報記憶部２２に、解像度及び画素の光特徴量に関連付けて表面状態を記録し、評価対象面に、撮影面を特定するための基準画像を投影し、基準画像を含めた評価対象面の撮影画像を取得し、撮影画像に含まれる基準画像の配置に基づいて、撮影画像に含まれる画素の解像度を算出し、クラックスケール情報記憶部２２を用いて、解像度と前記撮影画像に含まれる画素の光特徴量に基づいて、壁面３０の表面状態を評価する。【選択図】図１