A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DETERIORATED PORTION DETECTION DEVICE, DETERIORATED PORTION DETECTION METHOD, AND PROGRAM
PROBLEM TO BE SOLVED: To suppress reduction in detection accuracy of a deteriorated portion on a concrete surface due to dirt or deposit.SOLUTION: A deteriorated portion detection device 1 of the present invention includes: an image acquisition unit 10 for acquiring a photographic image by photographing a concrete surface; a normal concrete skin color acquisition unit 20 for determining a normal concrete skin color from the photographic image acquired by the image acquisition unit 10; an abnormal area detection unit 30 for detecting, as an abnormal area, an area having an abnormal color compared with the normal concrete skin color and an area having a predetermined shape in the photographic image; and a deteriorated portion determination unit 40 for determining whether the abnormal area detected by the abnormal area detection unit 30 is a reinforcing-bar area, a rust fluid area, or a peeled area.SELECTED DRAWING: Figure 1
【課題】汚れや付着物によるコンクリート表面の劣化部位の検知の精度の低下を抑制する。【解決手段】本発明に係る劣化部位検知装置１は、コンクリート表面を撮影した撮影画像を取得する画像取得部１０と、画像取得部１０が取得した撮影画像から、正常コンクリート肌色を決定する正常コンクリート肌色取得部２０と、撮影画像において、正常コンクリート肌色と比較して異常な色を有する領域、および、所定の形状の領域を異常領域として検知する異常領域検知部３０と、異常領域検知部３０により検知された異常領域が、鉄筋領域、錆汁領域または剥離領域であるか否かを判定する劣化部位判定部４０とを備える。【選択図】図１
DETERIORATED PORTION DETECTION DEVICE, DETERIORATED PORTION DETECTION METHOD, AND PROGRAM
PROBLEM TO BE SOLVED: To suppress reduction in detection accuracy of a deteriorated portion on a concrete surface due to dirt or deposit.SOLUTION: A deteriorated portion detection device 1 of the present invention includes: an image acquisition unit 10 for acquiring a photographic image by photographing a concrete surface; a normal concrete skin color acquisition unit 20 for determining a normal concrete skin color from the photographic image acquired by the image acquisition unit 10; an abnormal area detection unit 30 for detecting, as an abnormal area, an area having an abnormal color compared with the normal concrete skin color and an area having a predetermined shape in the photographic image; and a deteriorated portion determination unit 40 for determining whether the abnormal area detected by the abnormal area detection unit 30 is a reinforcing-bar area, a rust fluid area, or a peeled area.SELECTED DRAWING: Figure 1
【課題】汚れや付着物によるコンクリート表面の劣化部位の検知の精度の低下を抑制する。【解決手段】本発明に係る劣化部位検知装置１は、コンクリート表面を撮影した撮影画像を取得する画像取得部１０と、画像取得部１０が取得した撮影画像から、正常コンクリート肌色を決定する正常コンクリート肌色取得部２０と、撮影画像において、正常コンクリート肌色と比較して異常な色を有する領域、および、所定の形状の領域を異常領域として検知する異常領域検知部３０と、異常領域検知部３０により検知された異常領域が、鉄筋領域、錆汁領域または剥離領域であるか否かを判定する劣化部位判定部４０とを備える。【選択図】図１
DETERIORATED PORTION DETECTION DEVICE, DETERIORATED PORTION DETECTION METHOD, AND PROGRAM
劣化部位検知装置、劣化部位検知方法およびプログラム
SAITO CHIHIRO (author) / TAKAHASHI HIROYUKI (author) / KAWABATA KAZUYOSHI (author)
2017-12-14
Patent
Electronic Resource
Japanese
IPC:
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
E04G
SCAFFOLDING
,
Baugerüste
/
G06T
Bilddatenverarbeitung oder Bilddatenerzeugung allgemein
,
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
| European Patent Office | 2021
| European Patent Office | 2018
Rehabilitation of deteriorated bridge slabs
| Engineering Index Backfile | 1964
Occurrence of thaumasite in deteriorated concrete
| Elsevier | 2003