Vectorizing a low Resolution Bitmap

Good Moring Guys,

i have a little problem by vectorizing a bitmap.

The picture ist low quality, but there is no better one.

I want to make a sticker of it with my Summa Cutter.

So i need clear layers an just shapes, but Corel Draw X7 seperates the diffrent Colors bei thounds of dots.

Can anybody help me please by telling me how to edit the vector grafic to use it with a cutter.

I post the Image below, thanks for help.