Abstract: Apparatus and method for visual inspection of a target structure. The apparatus comprises a plurality of cameras for capturing imaging data, the imaging data comprising a plurality of images of the target structure, wherein a first camera of the plurality of cameras is configured to collect the imaging data in a first wavelength range and a second camera configured to collect the imaging data in a second wavelength range, the second wavelength range being a different range of wavelengths to the first wavelength range. At least two of the cameras of the plurality of cameras collect imaging data of the target structure from different angles. The apparatus further comprises a processing unit configured to process the imaging data.