公开(公告)号：US11183155B2

公开(公告)日：2021-11-23

申请号：US16870197

申请日：2020-05-08

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Chaohao Wang ,  Shilin Zhu

IPC: G09G5/39 ,  G06N3/02 ,  G06T1/60 ,  G09G5/00

Abstract: Systems and methods for improving perceived image quality with reduced implementation associated cost and/or improved operational efficiency. A display pipeline includes an input buffer that stores input image data corresponding with an image pixel window, in which the input image data has a first bit-depth and includes image data corresponding with an image pixel in the image pixel window. The display pipeline includes bit-depth adjustment circuitry, which includes a neural network that operates based on a set of bit-depth adjustment parameters to process the input image data to determine whether banding greater than a perceivability threshold is expected to result when the image is displayed directly using the input image data with the first bit-depth and to process the image data corresponding with the image pixel to expand the image data from the first bit-depth to a second bit-depth when the banding visual artifact is greater than the perceivability threshold.