Parkwalk has returned to back three-dimensional imaging developer Fuel3D as the Oxford spinout continues work on a scanner than can accurately detail sub-cutaneous tumours.

Fuel3D, a UK-based 3D imaging technology developer spun out from University of Oxford, has received an undisclosed amount of funding from fund manager Parkwalk Advisors’ Opportunities EIS Fund.
Parkwalk Advisors is owned by commercialisation firm IP Group.
Founded in 2013, Fuel3D has created scanning technology that can accurately capture images of a 3D object by using stereo photometrics, a computer vision technique used to estimate an object’s surface normals by assessing images taken under different lighting conditions.
Fuel3D is currently developing a scanner called Fuel3D Biovolume, a point-and-shoot system used for collecting high-resolution imaging and colour information of sub-cutaneous tumours.
The spinout is based on research by Ron Daniel, a lecturer in the department of engineering science. It previously marketed a consumer-facing handheld device called Scanify, however sales of the device were halted in December 2017.
Parkwalk invested an undisclosed sum through its Opportunities EIS Fund and an unnamed syndicate in March 2017.
Fuel3D was backed two years previously by In-Q-Tel, the venture capital affiliate of the US intelligence community, after closing a two-tranche $9.1m round featuring Parkwalk and investment firm Chimera Partners in 2014.