Systems and methods for generating interpolated high-dynamic-range images

Patent metadata

Field	Value
Publication number	US-9007488-B2
Application number	US-201313786199-A
Country	US
Kind code	B2
Filing date	Mar 5, 2013
Priority date	Mar 8, 2012
Publication date	Apr 14, 2015
Grant date	Apr 14, 2015

Abstract

Electronic devices may have camera modules that include an image sensor and processing circuitry. The image sensor may capture an interleaved image having rows of long-exposure pixel values that are interleaved with rows of short-exposure pixel values. The image sensor may separate the interleaved image into first and second images each having empty image pixel values. The processing circuitry may generate interpolated long-exposure and interpolated short-exposure images by generating chroma-filtered interpolated pixel values for the empty pixel values in the first and second images. The processing circuitry may perform interpolation operations along one or more directions for the empty image pixels based on whether the empty image pixels are within a texture area or on a dominant edge of the captured image. The processing circuitry may combine the interpolated long-exposure image and the interpolated short-exposure image to generate a high-dynamic-range image.

First claim

What is claimed is:

1. A method of using image processing circuitry to interpolate color image data for an image, wherein the image includes a first set of image pixels having captured pixel values and a second set of image pixels having empty pixel values, the method comprising:
with the image processing circuitry, determining whether the second set of image pixels is within a texture area of the image;
with the image processing circuitry, determining whether the second set of…

Assignees

• Semiconductor Components Ind

Inventors

• Li Huai Dong

Classifications

• H04N25/134

  Electricity · mapped topic

• H04N23/741

  Electricity · mapped topic

• H04N23/843

  Electricity · mapped topic

• H04N23/73

  Electricity · mapped topic

• G06T2207/20208

  Physics · mapped topic