Abstract: A method for correction of thermal defects using tomographic scanning for additive manufacturing is provided. The method may include forming a portion of an object using an additive manufacturing system based on an intended three-dimensional (3D) model of the object that is in an additive manufacturing system format. The portion of the object is scanned using a tomographic scanner to obtain a model of the portion of the object in a tomographic scanner format. The model is converted from the tomographic scanner format into the additive manufacturing system format to obtain a converted tomographic model; and the converted tomographic model is compared to the intended 3D model to identify a defect in the portion of the object. A modified 3D model may be generated of the object correcting the intended 3D model to address the defect of the portion of the object.