Joining with Israeli startup Trigo Vision for help, Tesco could use a system of cameras and software that allows retailers to automatically charge customers, three people close to the matter told Bloomberg. Tesco aims to compete against Amazon and its expanding partnership with Morrisons. Already in the US, Amazon plans on opening 3,000 Amazon Go stores that require no checkout. Removing the cashiers might help Tesco reduce its workforce over time and improve profit margins. The news comes after Tesco said earlier in June that it's looking at a range of new technologies, which also includes robot delivery vehicles. However, checkout-free stores are "one thing we're testing, but it's not something we're ready to roll out yet," a spokeswoman reportedly said.