Samsung Patents a Camera Fix That Corrects Uneven Brightness When the Lens Moves

By Patentlyze Team · Updated Jun 19, 2026

Every smartphone camera has a hidden calibration table that corrects uneven brightness across the frame — but that table assumes the lens is sitting perfectly still. Samsung's new patent fixes what happens when it isn't.

What Samsung's moving-lens brightness fix actually does

Imagine taking a photo while walking, and your phone's built-in stabilization physically tilts the camera lens to compensate for the shake. That mechanical tilt actually moves the lens away from the center of the image sensor — and here's the catch: your phone's brightness correction was calibrated assuming the lens never moves.

The result is subtle but real. The edges or corners of a photo can look slightly brighter or darker than they should, because the correction map no longer lines up with where the lens actually is. Samsung's patent describes a system that tracks exactly how far and in what direction the stabilization module has moved the lens, then slides the brightness correction map to match that new position in real time.

The corrected image comes out with more consistent brightness across the whole frame, even mid-motion. It's the kind of fix you'd never notice when it's working — but might see as a slight glow or dimness in the corners of handheld shots without it.

How the LSC table shift tracks the OIS module's position

Every camera sensor has a quirk called lens shading: light hits the center of the sensor more directly than the edges, so the corners of a photo tend to look slightly dimmer. To fix this, manufacturers calibrate a lens shading correction (LSC) table — essentially a grid of brightness multipliers, one per color channel (red, green, blue), applied to every block of the raw image before you ever see the photo.

The problem is that this table is built assuming the lens stays centered over the sensor. But optical image stabilization (OIS) works by physically moving the lens — sometimes several millimeters — to counteract hand shake. When the lens shifts, the shading pattern shifts with it, but the correction table stays put.

Samsung's patent describes a processor pipeline that:

• Reads the OIS module's real-time position data from the motion sensor
• Uses that movement information to calculate how far the lens has drifted from center
• Shifts the LSC table by the same offset, so the correction grid re-aligns with where the lens actually is
• Applies the shifted table to the raw image, channel by channel, before outputting the final photo

The shift happens at the raw image processing stage, meaning it doesn't add visible artifacts or require a second-pass edit. The corrected image reflects accurate brightness across the whole frame, even if the shot was captured mid-motion.

What this means for Samsung camera quality in low light

For most people in most conditions, this is invisible infrastructure — the kind of correction that prevents a problem rather than solving an obvious one. But in low-light photography, where brightness differences across a frame are more visible and post-processing amplifies any unevenness, misaligned lens shading correction can produce muddy corners or inconsistent color. Fixing the alignment dynamically means stabilized shots in dim environments should come out cleaner.

For Samsung, this matters competitively. The Galaxy S series cameras are benchmarked obsessively against Apple's iPhone and Google's Pixel, and per-pixel brightness accuracy is one of the metrics that separates the field. A patent like this suggests Samsung is closing gaps at the signal-processing level, not just by adding bigger sensors or more focal lengths.

Editorial commentary on a publicly published patent application. Not legal advice.