US Patent Application 18022710. LENS SHADING CORRECTION TO MINIMIZE DATA LOSS simplified abstract

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LENS SHADING CORRECTION TO MINIMIZE DATA LOSS

Organization Name

Google LLC


Inventor(s)

Karl Rasche of Kernersville NC (US)

LENS SHADING CORRECTION TO MINIMIZE DATA LOSS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18022710 titled 'LENS SHADING CORRECTION TO MINIMIZE DATA LOSS

Simplified Explanation

The patent application describes a method for correcting images taken with a camera lens. Here are the key points:

  • The method starts by receiving a raw image and a stored calibration.
  • The stored calibration is used to determine a lens shading correction (LSC) gain.
  • The LSC gain is then factored into a factored gain, which includes a local tone mapping (LTM) gain and the factored LSC gain.
  • Finally, the factored gain is applied to the raw image to generate a corrected image.

Overall, this method improves the quality of images by correcting for lens shading and applying local tone mapping.


Original Abstract Submitted

A method including receiving a raw image and a stored calibration, determining a lens shading correction (LSC) gain based on the stored calibration, factoring the LSC gain into a factored gain including a local tone mapping (LTM) gain and a factored LSC gain, and applying the factored gain to the raw image to generate a corrected image.

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