Holographic display device and method for generating hologram using redundancy of 3D video
AssigneeLG Electronics Inc.
InventorsJaewon Sung, Moonmo Koo, Sehoon Yea
Life of this patent
Estimating the term…
Abstract
A holographic display device and method of generating a hologram using redundancy of 3D video are disclosed. A storage unit stores the hologram of a previous 3D image frame. A control unit generates an update map indicating an update required 3D point among 3D points included in a current 3D image frame based on the current 3D image frame and the previous 3D image frame and modifies the update map to further include information indicating the update of a 3D point related to the update required.
Claims19
A method of generating a hologram using redundancy of 3D video, the method comprising:
- generating an update map indicating an update required 3D point among 3D points contained in a current 3D image frame based on the current 3D image frame and a previous 3D image frame;
- determining a pixel distance to determine the related 3D point;
- modifying the update map to further contain information indicating an update of a 3D point related to the update required 3D point by performing a dilation operation on the generated update map using a mask having a radius set to the determined pixel distance;
- and
- generating the hologram of the current 3D image frame based on the modified update map,
- wherein the dilation operation is that a center pixel of the mask is positioned at each pixel of an input image and then the pixels of the input image overlapping the black color area of the mask are colored in black.
A holographic display device comprising:
- a storage unit configured to store a hologram of a previous 3D image frame;
- and
- a control unit configured to:
- generate an update map indicating an update required 3D point among 3D points contained in a current 3D image frame based on the current 3D image frame and a previous 3D image frame,
- modify the update map to further include information indicating an update of a 3D point related to the update required 3D point by performing a dilation operation on the generated update map using a mask having a radius set to the determined pixel distance, and
- generate the hologram of the current 3D image frame based on the modified update map,
- wherein the dilation operation is that a center pixel of the mask is positioned at each pixel of an input image and then the pixels of the input image overlapping the black color area of the mask are colored in black.
Dependencies are inferred from the claim text.