US 12,462,408 B2
Reducing texture lookups in extended-reality applications
Mikko Strandborg, Helsinki (FI); and Antti Hirvonen, Helsinki (FI)
Assigned to Varjo Technologies Oy, Helsinki (FI)
Filed by Varjo Technologies Oy, Helsinki (FI)
Filed on Aug. 14, 2023, as Appl. No. 18/449,352.
Prior Publication US 2025/0061593 A1, Feb. 20, 2025
Int. Cl. G06T 7/50 (2017.01); G06T 7/11 (2017.01)
CPC G06T 7/50 (2017.01) [G06T 7/11 (2017.01); G06T 2207/10028 (2013.01)] 15 Claims
OG exemplary drawing
 
13. A system comprising at least one server that is communicably coupled to at least one display apparatus, the at least one server being configured to:
receive, from the at least one display apparatus, depth data corresponding to a video-see-through (VST) image captured at the at least one display apparatus;
divide a display area into a plurality of regions;
for a given region of the display area, determine a corresponding first region in the VST image and a corresponding second region in at least one virtual-reality (VR) image;
determine, from the depth data corresponding to the VST image, a minimum optical depth and a maximum optical depth in the first region of the VST image;
determine, from at least one depth map corresponding to the at least one VR image, a minimum optical depth and a maximum optical depth in the second region of the at least one VR image;
when the minimum optical depth in the first region of the VST image is greater than the maximum optical depth in the second region of the at least one VR image, classify the given region of the display area as a VR region that is to be rendered from the at least one VR image only;
when the minimum optical depth in the second region of the at least one VR image is greater than the maximum optical depth in the first region of the VST image, classify the given region of the display area as a VST region that is to be rendered from the VST image only;
when the minimum optical depth in the first region of the VST image is not greater than the maximum optical depth in the second region of the at least one VR image, and the minimum optical depth in the second region of the at least one VR image is not greater than the maximum optical depth in the first region of the VST image, classify the given region of the display area as a mixed region that is to be rendered from the at least one VR image and the VST image; and
send, to the at least one display apparatus, information indicative of respective classifications of the plurality of regions.