Startup GotoCamera, which provides software and online storage for capturing and streaming video to 100,000 users, wants to convince its customers to switch on the various cameras in their homes - from digital SLRs to laptop and games console devices - and let the company's algorithms analyse what they show and sell the results for marketing data.

CEO Varun Arora described the plan at this year's DEMO Asia conference in Singapore as a sort of visual version of what Google and other firms do with search results and free email services.

"But video is another level of privacy for users," he said.

For now, his company makes money by charging manufacturers for offering its services with their products, or from users that upgrade to extra storage. Currently most such cameras are USB-driven, but a new wave of cheap Wi-Fi models are on the way, and manufacturers like Samsung and Panasonic are putting them into TVs and other devices, mainly for motion control and video conferencing.

"USB is a sunset industry" for cameras, Arora said. He showed off a tiny wireless camera from partner Trek 2000 International, about the size of a roll of film. It sells online for about £40, and other manufacturers will soon launch for less than £32. Unlike USB models, Wi-Fi cameras don't need to be plugged into a computer or network, and usually just require a power source, which makes them ideal for security and monitoring.

As the prices of such devices fall, manufacturers will be squeezed, and GotoCamera proposes to provide a portion of the online fees it receives back to them, a rare ongoing revenue stream he compares to disposable blades for shaving razors, that must be continually purchased.

"What we say to them is, 'Please accept that you're a commodity, and let us bring the Gillette model to you,'" Arora said.

Currently only about 1% of users subscribe to the company's paid service, which costs $40 (£32) per year for a gigabyte of storage versus 50MB for the free version, but Arora thinks that can climb to 50% as more people buy cameras specifically for security or monitoring.

GotoCamera, which was founded in 2008, now has five staff and is actively looking for more developers. It has partnered with camera makers like Creative and is in talks with ISPs and set-top box makers, and Arora said it will break even next year.

One of the principal producers of DEMO Asia is IDG Enterprise, a subsidiary of International Data Group (IDG), which also owns Techworld.