The embodiment of the invention discloses an outer wall
thermal insulation defect diagnosis method and
system based on
artificial intelligence, and the method comprises the steps: firstly obtaining an
infrared thermal imaging and visible light
image sequence of a target building outer wall, the former comprising continuous temperature distribution data, and the latter comprising
textural feature data in time-space alignment with the latter; performing dynamic
temperature gradient analysis on the
infrared thermal imaging
image sequence to generate a three-dimensional heat conduction abnormal map, extracting
surface deformation characteristics from the visible light
image sequence to generate a structure deformation distribution map, and performing multi-
modal characteristic fusion on the two to obtain a joint defect
characteristic matrix; performing defect type classification and region positioning on the matrix based on a pre-trained deep
residual neural network model, outputting a defect type identifier and a corresponding region boundary coordinate, and finally generating a diagnosis report containing a repair priority
score and a material matching suggestion according to the defect type identifier and the corresponding region boundary coordinate, and sending the diagnosis report to a user terminal for visual display. And efficient and accurate external wall
thermal insulation defect diagnosis is realized.