US 12,450,780 B2
Multi-plane image compression
Scott Janus, Loomis, CA (US); Jill Boyce, Portland, OR (US); Atul Divekar, Folsom, CA (US); Jason Tanner, Folsom, CA (US); Sumit Bhatia, Folsom, CA (US); and Penne Y. Lee, Bellevue, WA (US)
Assigned to Intel Corporation, Santa Clara, CA (US)
Appl. No. 17/926,532
Filed by Intel Corporation, Santa Clara, CA (US)
PCT Filed Jun. 18, 2021, PCT No. PCT/US2021/038095
§ 371(c)(1), (2) Date Nov. 18, 2022,
PCT Pub. No. WO2021/257992, PCT Pub. Date Dec. 23, 2021.
Claims priority of provisional application 63/041,589, filed on Jun. 19, 2020.
Prior Publication US 2023/0360272 A1, Nov. 9, 2023
Int. Cl. G06T 9/00 (2006.01)
CPC G06T 9/00 (2013.01) 20 Claims
OG exemplary drawing
 
1. An apparatus to compress multiplane image stacks, the apparatus comprising:
interface circuitry;
machine readable instructions; and
at least one programmable circuit to be programmed based on the machine readable instructions to:
access an input multiplane image stack corresponding to a source camera viewpoint, the input multiplane image stack including a plurality of texture images and a corresponding plurality of alpha images, ones of the alpha images including pixel values representative of transparency of corresponding pixels in respective ones of the texture images; and
at least one of (i) replace the plurality of texture images with a source camera image associated with the source camera viewpoint corresponding to the input multiplane image stack to convert the plurality of texture images to a single composite texture image, or (ii) convert the plurality of alpha images to a single composite alpha image including a composite alpha value at a pixel position of the single composite alpha image, the composite alpha value based on a combination of an alpha plane index value and a bias value, the alpha plane index value based on a value of a source camera depth image at the pixel position, the bias value based on the alpha plane index value and the value of the source camera depth image at the pixel position, the source camera depth image associated with the source camera viewpoint corresponding to the input multiplane image stack;
generate a compressed multiplane image stack based on at least one of the single composite texture image or the single composite alpha image; and
output the compressed multiplane image stack.