Preschool Education Interactive System Based on Smart Sensor Image Recognition

Table 1

Four database information tables.

Database name	Identify object	Number of image classes	Volume
ImageNet	Multiple images	Not classified	14197122 images
MS COCO	Scene understanding	91	>1500000 objects
MNIST	Handwritten numeral	1	60000 training sets, 10000 test sets
The Chars74K dataset	Character recognition	64	74107 characters