Disclosed is an imaging device with a tiltable mirror for an internal surface of cylindrical battery products, the imaging device including: a transfer module configured to transfer a cylindrical battery product, which is in an upright posture with its top...

Disclosed is a multi-field layer inspection method for the surface of a cylindrical object, in which several areas for bright, dark, and edge fields are extracted from multiple images, and these extracted areas are combined to form a complete lateral area ...