how to process negative image data for object detection or grounding task?

[zzl777]

hi, thanks for your work. How to process negative image data for object detection or grounding task? Could you provide a template for processing negative image samples in object detection and grounding tasks?
thanks in advance!

[exiawsh]

Do you have any concrete examples? Normally, if you query something that isn't in the image, a well-functioning model will just return 'None'