Fidelity optimization for aberration-tolerant hybrid imaging systems

Area of Science:

• Optical Engineering
• Image Science
• System Design

Background:

• Aberration variance in hybrid imaging systems impacts performance.
• Phase-modulation functions are critical for optimizing aberration tolerance.
• Restorability constraints on modulation-transfer-function (MTF) balance aberration tolerance and noise gain.

Purpose of the Study:

• To directly minimize expected imaging error for joint design optimization.
• To compare the performance of antisymmetric generalized cubic polynomial and fourth-degree rotational symmetric phase-modulation functions.
• To determine optimal phase-modulation strategies for hybrid imaging systems.

Main Methods:

• Direct minimization of expected imaging error.
• Comparative analysis of specific phase-modulation functions.
• Evaluation of system performance under varying phase-modulation levels.

Main Results:

• Optimal imaging performance is achieved with moderate phase-modulation.
• The study quantifies the relative merits of different phase-modulation functions.
• Direct error minimization provides a superior optimization approach.

Conclusions:

• Moderate phase-modulation is essential for high-performance hybrid imaging.
• The choice of phase-modulation function significantly impacts system outcomes.
• Directly minimizing imaging error offers a robust method for system design and optimization.