HD-TVI stands for High Definition Transport Video Interface. It is a digital signal processing and transport technology for video used in HD security cameras and DVRs. The TVI standard was developed by a company named Techpoint and released in 2014. The technology has been supplied to many manufacturers worldwide. Consumers can reliably connect TVI cameras from different manufacturers to the same DVR.
HD-TVI cameras currently support 1080P video resolution using the same coaxial cabling techniques used by traditional analog CCTV cameras. This makes it easy for people with existing analog CCTV systems to upgrade to an HD system because most of the time they can leverage their existing cable infrastructure.