DetReco: Object-Text Detection and Recognition Based on Deep Neural Network

Algorithm 1

GIoU_Loss algorithm.

	Input: The region of the and (), where is the input image size.
	Output:
	Step 1. Calculate the smallest enclosing region ,;
	Step 2. ;
	Step 3. ;
	Step 4. Calculate the bounding box scale: ;
	Step 5. Calculate the location loss function: , where is the existence of the object-text in associated bounding box.