Step 1: Read data
step 2: Augmentation
Step 3: design model
step 4: Design anchor boxes
step 5: Set hyperparameters
step 6: Prepare labels for ssd network
step 7: Deocde ssd out put labels (contain NMS)
step 8: Calculate mean average precision(mAP)
step 9: train SSD model
step 10: Evaluate SSD model on test data
step 11: visualization and result