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SonyGranted patentCameras & imagingInterest 6/10

Sony patents camera software that finds and removes moire patterns

Patent drawing
Patent drawing from the official filing.

Sony has been granted a patent for an image processing system that identifies moire patterns, which are unwanted wavy lines often seen in photos of screens or fabrics. The system compares current and past images to spot areas where pixels move differently than the main subject, then applies a filter to smooth out those specific spots.

Why it mattersThis technology could lead to cleaner photos and videos from Sony cameras, especially when capturing detailed textures or digital displays.

In the filing’s own words

An image processing apparatus is provided with a moire detection unit that detects a pixel region with a different motion out of a pixel region in which the same motion as a motion of a subject is assumed as a change in an in-frame position between images at different times, and generates detection information of moire.

What exactly they claim (claim 1)

1. An image processing apparatus, comprising: a central processing unit (CPU) configured to: acquire raw image data, wherein the raw image data comprises current image data and past image data; perform an object recognition process on the current image data and the past image data; set, based on the performed object recognition process, a target subject from a plurality of subjects in the current image data; detect a motion of the set target subject of the plurality of subjects, wherein an in-frame position of the target subject in the current image data is different from an in-frame position of the target subject in the past image data, and the current image data and the past image data are captured at different time intervals; detect a specific motion of a first pixel region of a plurality of pixel regions of the target subject, wherein the detected specific motion of the first pixel region is different from the detected specific motion of the target subject; determine the first pixel region, within the target subject, with the detected specific motion as a moire portion, wherein the moire portion has moire; generate detection information of the moire, wherein the generated detection information includes moire presence or absence information and area information indicating the first pixel region of the target subject having the moire; and perform, based on the generated detection information, a moire reduction process by a low-pass filter (LPF) process on the current image data.

Facts

Company
Sony (SONY GROUP CORPORATION)
Official title
Image processing apparatus and image processing method
Patent number
US12755361B2
Application number
18556954
Filed
Feb 16, 2022
Granted
Oct 6, 2026
Inventors
1
Claims
12

Classified under

G06T 7/0002 Physics & computingG06T 5/20 Physics & computingG06T 5/70 Physics & computingG06T 7/246 Physics & computingH04N 23/60 Electricity & electronicsG06T 2207/30168 Physics & computing

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.