Camera module and interaction device

A method of imaging, comprising:

• turning on/off an infrared light source according to a first control signal having first strobes, the infrared light source providing supplemental infrared light when the infrared light source is turned on;
• turning on/off a white-light light source according to a second control signal that is a pulse width modulation (PWM) signal, the white-light light source providing supplemental white light when the white-light light source is turned on;
• controlling an infrared sensor according to the first control signal, the infrared sensor capturing infrared light according to the first strobes in the first control signal and being synchronized with the infrared light source according to the first control signal;
• controlling a color sensor according to a third control signal having second strobes, the color sensor capturing white light according to the second strobes in the third control signal;
• and
• generating the second control signal with at least a first rising edge of a first pulse being synchronized with a first falling edge of a first strobe of the first strobes in the first control signal, the second control signal causing the white-light light source to turn on in response to the first rising edge when the infrared light source is turned off based on the first falling edge of the first strobe.

A non-transitory computer-readable storage medium storing instructions which when executed by at least one processor cause the at least one processor to perform:

• turning on/off an infrared light source according to a first control signal having first strobes, the infrared light source providing supplemental infrared light when the infrared light source is turned on;
• turning on/off a white-light light source according to a second control signal that is a pulse width modulation (PWM) signal, the white-light light source providing supplemental white light when the white-light light source is turned on;
• controlling an infrared sensor according to the first control signal, the infrared sensor capturing infrared light according to the first strobes in the first control signal and being synchronized with the infrared light source according to the first control signal;
• controlling a color sensor according to a third control signal having second strobes, the color sensor capturing white light according to the second strobes in the third control signal;
• and
• generating the second control signal with at least a first rising edge of a first pulse being synchronized with a first falling edge of a first strobe in the first control signal, the second control signal causing the white-light light source to turn on in response to the first rising edge when the infrared light source is turned off based on the first falling edge of the first strobe.