  Data augmentation methods are commonly integrated into the training of
anomaly detection models. Previous approaches have primarily focused on
replicating real-world anomalies or enhancing diversity, without considering
that the standard of anomaly varies across different classes, potentially
leading to a biased training distribution.This paper analyzes crucial traits of
simulated anomalies that contribute to the training of reconstructive networks
and condenses them into several methods, thus creating a comprehensive
framework by selectively utilizing appropriate combinations.Furthermore, we
integrate this framework with a reconstruction-based approach and concurrently
propose a split training strategy that alleviates the issue of overfitting
while avoiding introducing interference to the reconstruction process. The
evaluations conducted on the MVTec anomaly detection dataset demonstrate that
our method outperforms the previous state-of-the-art approach, particularly in
terms of object classes. To evaluate generalizability, we generate a simulated
dataset comprising anomalies with diverse characteristics since the original
test samples only include specific types of anomalies and may lead to biased
evaluations. Experimental results demonstrate that our approach exhibits
promising potential for generalizing effectively to various unforeseen
anomalies encountered in real-world scenarios.
