Graphical representation of roads and routes using hardware tessellation

US9483872B2 · kind B2 · utility

Assignee

• Elektrobit Automotive GmbH · DE

Inventors

• Quirin Meyer · Erlangen, DE
• Mario Poerner · Nuremberg, DE

Key dates

• Filing date: May 26, 2015
• Grant date: Nov 1, 2016
• Expiry date: May 26, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30184
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A technical solution is provided for graphical representation of road segments by employing hardware tessellation, wherein cartographic data that describe at least one two-dimensional or three-dimensional road contour of the road segment are assigned to each road segment. One method aspect comprises the steps of piecewise partitioning the parametrization of the road segment into mutually independent curve segments, of providing at least one tessellation factor for each curve segment, the at least one tessellation factor specifying into how many subsegments each curve segment is to be subdivided in the direction of the road contour, of generating a tessellation pattern for each curve segment based on the at least one tessellation factor, and of generating primitives, capable of being represented on a screen, on the basis of the generated tessellation pattern and on the basis of the parametrized road contour.