Image processing unit and method for executing image processing of a virtual environment
US5442734A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1992 |
| Grant date | Aug 15, 1995 |
| Priority date | — |
| Expiry date | Mar 6, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An image processing unit generates a virtual environment or an artificial reality by displaying a necessary image in accordance with movement of a view direction of a person on a head mounted display and comprises a sensor, an image processing portion, and a display. The sensor detects a view direction and generates a view vector, and the image processing portion comprises a view direction movement discriminator, a priority degree allocator, and a partial update portion. The view direction movement discriminator calculates a view direction movement vector from the difference from the two fetched view vectors. The priority degree allocator generates a projection vector by projecting the view direction movement, determines a priority degree at each divided section of the display screen to be higher when the projection vector approaches and to withdraw from the center of the display screen to a periphery along the projection vector; and the partial update portion updates the display of the display screen in each divided section in accordance with the priority degree.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.