Methods and systems for contactlessly controlling electronic devices according to signals from a digital camera and a sensor module

A method for contactlessly controlling an electronic apparatus, performed by a processor of the electronic apparatus, comprising:

• detecting whether an object is in close proximity to the electronic apparatus;
• turning on a camera module of the electronic apparatus to capture a series of images containing the object upon detecting that the object is in close proximity to the electronic apparatus and performing a contactless control procedure while the camera module of the electronic apparatus is in use and,
• wherein the contactless control procedure further comprises:
• determining a control operation according to the captured images containing the object;
• performing the control operation to an electronic device of the electronic apparatus;
• and
• turning off the camera module responsive to not obtaining the control operation within a predetermined time period.