Non-Uniformity Correction (NUC)

Overview

Implemented algorithms to correct pixel-wise response variations in image sensors, improving image uniformity.

Responsibilities

• Modeled sensor non-uniformity characteristics
• Developed correction algorithms using calibration data
• Integrated correction into image processing pipeline

Approach

• Gain and offset correction per pixel
• Calibration using reference frames
• Optimization for computational efficiency

Correction Pipeline

flowchart LR
    A[Raw Image] --> B[Gain Correction]
    B --> C[Offset Correction]
    C --> D[Corrected Image]

    subgraph Calibration Data
        E[Flat Field Image]
        F[Dark Frame]
    end

    E --> B
    F --> C

Tech

MATLAB · Signal Processing · Calibration Algorithms

Impact

• Significantly reduced fixed-pattern noise
• Improved visual consistency across frames
• Enhanced downstream processing reliability