Luke Jerram created the flag installation from 120 sheets.
In Memoriam “commemorates all the people we have lost and is also a tribute to all the NHS and key workers”, the artist said.
“I’m hoping the artwork will help some people with the grieving process,” he added.
“There’s been a lot of grief. The country is in a grieving process. I’m hoping this artwork may be of use to people to contemplate the pandemic but also to help with the bereavement.”
Pleasure to represent @CAFCTrust this afternoon @GDIFestival 'In Memoriam' ceremony, paying tribute to @NHSuk and recognising all the hard work across @Royal_Greenwich @GCDAUK @DanLThorpe @lemnsissay pic.twitter.com/ycdz2HF0ua
— David James (@DJCACT) August 28, 2020
Jerram said he bought the bed sheets – which resemble a medical cross logo from the air – and “stitched” them up.
In Memoriam on display at outside the Queen Elizabeth Hospital on Woolwich Common in London before it moves to Norwich, Newbury and Bournemouth.
The work, “a memorial for quiet reflection”, has been unveiled as part of Greenwich And Docklands International Festival.