Just use get_posts(), can I get all posts that has feature image?

Hi all

I am working on a function where I need to display a simple gallery that list all features images inside posts.

Since there are some posts which does not have feature images, I know that I can do something like this in pure SQL:

SELECT * FROM wp_posts AS p
INNER JOIN wp_postmeta AS pm ON (p.ID = pm.post_id)
WHERE pm.meta_key = 'img_url'
AND IFNULL(pm.meta_value, '') != ''

But I wonder if I can make it much more simpler by using get_posts()?

Thank you in advance for your help.