Pranav Mistry, chief executive of the lab, said the creations known as NEONs are modeled after people but can show highly detailed expressions and gestures, and even new characteristics that can be programmed. "They look very human, in part because they are modeled after a human," but can even speak in languages the person hadn't spoken before, Mistry said.
In developing the creations, Mistry said it "felt like magic to us and we wanted to share this magic."
According to Star Labs, NEON is inspired "by the rhythmic complexities of nature and extensively trained with how humans look, behave and interact."
While digital avatars have long been able to be programmed for specific tasks such as role players in games, NEON goes further by enabling interactions that can incorporate human emotion.
Although the artificial humans may borrow features from real people, "each NEON has his or her own unique personality and can show new expressions, movements, and dialogues," the company said.
The NEON creators said the new virtual humans are the product of advances in technologies including neural networks and computational reality.
But the invention did not impress everyone.
Ben Wood of the consultancy CCS Insight said he was "underwhelmed" after seeing the NEONS.
He tweeted that, on the booth, they just look like "videos of actors which can be manipulated to do certain actions. I must be missing something." Avi Greengart of the consultancy Techsponential said the avatars could be realistic but also "creepy."
"Leaving aside how impressive the technology is, will NEON be used in ways that people like, just tolerate, or actively hate?" he said.
Jack Gold, an analyst at J. Gold Associates, said Samsung may be ahead of the pack if it can develop avatars that can show emotions and expressions, but also questioned the potential for abuse.
"It has major implications for many fields like customer service, help desk functions, entertainment, and of course could also be used to 'fake' a human interacting with a live person for bad or illegal purposes."