Create Sketch Entities from JPEG

Hi,

I have a black and white JPEG I'd like to ultimately convert to SW sketch entities (so I can make an extrusion with it).  I know there is a way with Illustrator to outline only the parts I want and export to .dwg, then use that as my sketch perimeter and create an extrusion.  But I have no clue how.  Anyone know?

SolidworksParts And Features