Patent ID: 9519995
Filing Date: 2016-12-13
CPC Classification: G06T

Claim Text:
1. An information processing method using a computer for converting start information on a start spherical surface into end information on an end plane via a tetrahedron, comprising: providing a computer comprising a computer program stored in a non-transitory computer-readable recording medium and executable to provide a method comprising; a plane dividing step for dividing the start spherical surface to generate an intermediary spherical polyhedron having divisional spherical faces each holding a divisional piece of said start information; a plane integrating step for integrating said divisional spherical faces of the intermediary polyhedron onto four triangular faces of a tetrahedron such that all of the divisional pieces of the start information held on said divisional spherical faces of the intermediary polyhedron are mapped onto the four triangular faces of the tetrahedron without gaps and overlaps; a flattening step for developing said tetrahedron into a rectangular plane comprising a rectangular omnidirectional image mapped thereon by iso-area mapping; receiving a user request to view the rectangular omnidirectional image mapped on the rectangular plane; displaying, on a user display device, the rectangular omnidirectional image mapped on the rectangular plane; and providing for the user to control navigation to move a viewer frame to extract a part of the rectangular omnidirectional image mapped on the rectangular plane, wherein said start information on the start spherical surface is converted into the end information on the end plane while equally maintaining an equal area ratio between said start information and said end information.