Abstract: Based on traffic images characteristics, a general pre-processing system and method reduces input size of neural network object recognition models to focus on necessary regions. The system includes a light neural network (binary or low precision; based on configuration) to detect target regions for further processing and applies a deeper model to those specific regions. The present disclosure provides experimentation results on various types of methods, such as conventional convolutional neural networks, transformers, and adaptive models, to show the scalability of the system.