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SamsungGranted patentCameras & imagingInterest 6/10

Samsung patents camera system that mixes shots to brighten dark photos

Patent drawing
Patent drawing from the official filing.

Samsung describes a method where a phone's main camera detects low light and triggers a secondary camera to take a longer exposure shot. The system then combines these images using an AI model to create a brighter, clearer final picture.

Why it mattersThis could lead to significantly better night photography on multi-lens phones by intelligently blending data from different sensors.

In the filing’s own words

Provided is a system and method for enhancing media. The method includes: identifying whether a scene of a first preview frame captured by at least one primary camera was captured in low light based on at least one pre-defined parameter of the first preview frame; based on identifying that the first preview frame was captured in low light, triggering at least one secondary camera to capture a second preview frame of the scene, wherein the second preview frame has an exposure time higher than an exposure time of the first preview frame, and wherein the second preview frame includes one of a higher field of view (FOV) and a same FOV as compared to the first preview frame; and generating an output frame based on the first preview frame, the second preview frame, and at least one of the at least one pre-defined parameter.

What exactly they claim (claim 1)

1. A method for enhancing media, the method comprising: identifying whether a scene of a first preview frame captured by at least one primary camera was captured in low light based on at least one pre-defined parameter of the first preview frame; based on identifying that the first preview frame was captured in low light, triggering at least one secondary camera to capture a second preview frame of the scene, wherein the second preview frame has an exposure time higher than an exposure time of the first preview frame, and wherein the second preview frame comprises one of a higher field of view (FOV) and a same FOV as compared to the first preview frame; generating an enhanced first preview frame by performing a histogram equalization based on the first preview frame and the second preview frame; obtaining a frame map for boosting brightness of the scene from the enhanced first preview frame using an artificial intelligence (AI) model; and generating an output frame by processing the second preview frame with the frame map using pixel wise weighted average.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
Methods and systems for enhancing low light frame in a multi camera system
Patent number
US12756927B2
Application number
18945047
Filed
Nov 12, 2024
Granted
Oct 6, 2026
Inventors
5
Claims
20

Classified under

H04N 23/64 Electricity & electronicsH04N 23/45 Electricity & electronicsH04N 23/667 Electricity & electronicsH04N 23/71 Electricity & electronicsH04N 23/73 Electricity & electronicsH04N 23/81 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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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.