US 12,243,095 B2
Techniques for generating a three dimensional model for a listing
Qiaosong Wang, Belmont, CA (US); Antonio Haro, Walnut Creek, CA (US); and Nitzan Mekel, Purchase, NY (US)
Assigned to eBay Inc., San Jose, CA (US)
Filed by eBay Inc., San Jose, CA (US)
Filed on Aug. 26, 2022, as Appl. No. 17/896,913.
Prior Publication US 2024/0070762 A1, Feb. 29, 2024
Int. Cl. G06T 7/55 (2017.01); G06N 3/082 (2023.01); G06Q 30/0601 (2023.01); G06T 7/70 (2017.01); G06T 15/06 (2011.01); G06T 15/20 (2011.01); G06T 17/00 (2006.01); G06T 19/00 (2011.01); G06V 10/40 (2022.01); G06V 10/82 (2022.01); G06V 20/64 (2022.01)
CPC G06Q 30/0643 (2013.01) [G06N 3/082 (2013.01); G06T 7/55 (2017.01); G06T 7/70 (2017.01); G06T 15/06 (2013.01); G06T 15/205 (2013.01); G06T 17/00 (2013.01); G06T 19/00 (2013.01); G06V 10/40 (2022.01); G06V 10/82 (2022.01); G06V 20/64 (2022.01); G06T 2207/20084 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for generating a listing for an item, comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
receive a plurality of images of an item, spatial information associated with each image of the plurality of images indicating a relative spatial location to the item for each image of the plurality of images, and viewing direction information indicating a viewing direction relative to the item for each image of the plurality of images;
generate a neural radiance field model of the item in a three dimensional space based at least in part on the plurality of images, the spatial information, and the viewing direction information, and remove one or more weights from the neural radiance field model that do not satisfy an activation criterion;
generate a plurality of spherical harmonics for the neural radiance field model based at least in part on predicting one or more spherical harmonic coefficients using the plurality of images, the spatial information, and the viewing direction information, the plurality of spherical harmonics indicating a plurality of radiance values each being associated with a respective three dimensional point in the three dimensional space; and
output a three dimensional model of the item generated based at least in part on the plurality of spherical harmonics.