US 12,039,958 B2
Perceptual-driven foveated displays
Hong Hua, Tucson, AZ (US); and Pengyinjie Lyu, Tucson, AZ (US)
Assigned to ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA, Tucson, AZ (US)
Appl. No. 18/018,549
Filed by Arizona Board of Regents on Behalf of the University of Arizona, Tucson, AZ (US)
PCT Filed Aug. 2, 2021, PCT No. PCT/US2021/044127
§ 371(c)(1), (2) Date Jan. 28, 2023,
PCT Pub. No. WO2022/031572, PCT Pub. Date Feb. 10, 2022.
Claims priority of provisional application 63/060,268, filed on Aug. 3, 2020.
Prior Publication US 2024/0013752 A1, Jan. 11, 2024
Int. Cl. G09G 5/391 (2006.01); G02B 27/00 (2006.01); G02B 27/01 (2006.01)
CPC G09G 5/391 (2013.01) [G02B 27/0093 (2013.01); G02B 27/0172 (2013.01); G09G 2310/0232 (2013.01); G09G 2340/0428 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A perceptual-driven continuously foveated display with specified resolution across the display, the display having a display plane with a plurality of pixels, where the location of the pixels on the perceptual-driven continuously foveated display is distributed according to the angular pixel density function given by the equation

OG Complex Work Unit Math
where θ is the field angle of a pixel position P on the display plane along a given direction r and θ is defined as the angular deviation of the pixel position from a Z-axis perpendicular to the display plane of the OXYZ reference system in the unit of degrees; θx and θy correspond to an X-component and a Y-component of the field angle θ in the horizontal (X) and vertical (Y) directions, respectively; N is the number of critical balance points (N≥1); θC1(r), θC2(r) . . . , and θCN(r) are the balance points arranged along the given radial direction r in the order from the smallest to the largest angular distance from the center I; and, f1, f2, . . . fN+1 are N+1 segmented functions that characterize the relative resolution distribution within each corresponding region, and
f1(θ)=f2(θ) when θ=θC1,
whereby transition artifacts located at transitions between adjacent segmented functions is minimized.