Patent Document ID: 9532057
Application ID: 14137031
Patent Flag: 1

Claim One:
1. An apparatus configured to code video data, the apparatus comprising: a memory configured to store video data associated with a first layer and a second layer, the first layer including a first layer sample having a first bit depth; and a processor in communication with the memory, the processor configured to: apply a preliminary mapping function to the first layer sample to produce a preliminary predicted sample; determine a first category of the first layer sample based on one or more values with the first layer sample, wherein the first category is based on a comparison between the one or more values associated with the first layer sample and a plurality of bands defined at least by one or more boundary points between adjacent bands in the plurality of bands; determine one or more adjustment parameters based on the determined first category of the first layer sample; and perform, on the preliminary predicted sample, a piecewise adjustment operation using the one or more adjustment parameters to determine a refined predicted sample, the piecewise adjustment operation comprising one or more of a multiplication, a division, an exponentiation, or a logarithm, the refined predicted sample having a second bit depth that is greater than the first bit depth.