Systems and methods to defog a vehicle glass surface

A method comprising:

• determining, by a processor, that a humidity level at a front windshield of a vehicle is greater than a first predefined threshold based on inputs obtained from a first sensor;
• obtaining, by the processor, an image of a target vehicle glass surface from a camera responsive to determining that the humidity level is greater than the first predefined threshold;
• detecting, by the processor, a presence of fogging on the target vehicle glass surface based on the image;
• determining, by the processor, a fogging level on the target vehicle glass surface based on the image, responsive to detecting the presence of fogging;
• and
• controlling, by the processor, a heating, ventilation, and air conditioning (HVAC) unit operation based on the fogging level to defog the target vehicle glass surface.

A non-transitory computer-readable storage medium having instructions stored thereupon which, when executed by a processor, cause the processor to:

• determine that a humidity level at a front windshield of a vehicle is greater than a predefined threshold based on inputs obtained from a sensor;
• obtain an image of a target vehicle glass surface from a camera responsive to determining that the humidity level is greater than the predefined threshold;
• detect a presence of fogging on the target vehicle glass surface based on the image;
• determine a fogging level on the target vehicle glass surface based on the image, responsive to detecting the presence of fogging;
• and
• control a heating, ventilation, and air conditioning (HVAC) unit operation based on the fogging level to defog the target vehicle glass surface.