In a post on the AMC blog, Melton admitted that he had drawn visual inspiration for the show from the Image Comics series.
"It's like having a storyboard of the whole production," he said. "Usually I get a storyboard of an effects sequence or an action sequence. But it's very interesting to have something from beginning to end. There are a lot of iconic images in that graphic novel that we have taken into the series."
He also explained that he had attempted to match filming locations as closely as possible to the original images drawn by artist Tony Moore.
"One day I was driving around and saw right behind our production office this little brick building that looked exactly like the police station [from the comic]. So there are a lot of points like that, and then the hospital is something we really took to a whole new level as far as the devastation and really showing for the first time the scale of the apocalypse in Rick's town."
Make-up artist Greg Nicotero previously revealed that scenes from the comic were being closely adapted for the series.
The Walking Dead will air in October on AMC.