As the assignment suggest(start your own project), collecting images from google search and use them to train a model, would this imposed any restrictions for the trained model?
If I want to release the collected data(for research purpose), what should I notice?Would I get any troubles from the view point of laws?
Eh, it’s a legal gray area. Technically you would be liable to be sued by the individual image creators themselves (i.e. not Google), but it’s pretty unlikely. People have gotten C&D’s (cease and desist letters) for “research”, but the chances of getting in trouble are pretty close to zero.
Disclaimer: I am not a lawyer, don’t take this as valid legal advice