Speaking at a press conference in Seoul, Cameron said 3D will not dominate the TV industry, as it will co-exist with the more conventional 2D content for a long while.
3D technology, which gives an illusion of depth on the flat screen, has been aggressively pursued by global TV makers, including Samsung Electronics Co., LG Electronics Inc. and Sony Corp. Riding on the huge global success of Avatar, TV makers have been increasingly betting on 3D TVs to drive sales growth and larger profits.
"3D won't take that long to fully take over," Cameron told audiences at a conference held in eastern Seoul, referring to the film industry.
The pace at which 3D films become dominant will be much faster than color movies, which became the standard movie format in the mid 1960s, 25 years after it debuted, he said. The technology will spread to laptop computers, social networking services and phones as well, he added.
A glut of 3D movie titles is expected to crowd the film market "in the next couple of years," according to Cameron, and such an oversupply of 3D films will in turn force theater owners to install more screens to play those titles.
"This feedback loop between content and screens is going to drive 3D to dominate the movie marketplace in the next few years," he added.
Cameron, however, was less confident about the 3D TV industry, as a full adoption of 3D TVs by households worldwide would require thousands of hours of 3D programming to fill the screen.
"This content gap is the biggest hurdle for the rapid adoption of 3D TV," he said.
He urged patience to resolve the dearth of 3D TV programs, as they should be created in the right way to ensure quality.
"It will require a revolution in the way TV is produced," he said. "3D requires a new production culture, a new aesthetic, and new training, in addition to new equipment through out the chain."
If not, bad 3D content, including those hastily converted from 2D programs, could cause dizziness, headaches and eye strain, he said. It could also drive disappointed viewers away from 3D technology.
"To ramp up this massive content push, we're going to need a huge training initiative, and the building of thousands of professional 3D camera systems," Cameron said.
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