Image Fusing Method for Thermal and Visible Images

The patent applies different luminance adjustment strategies to different regions of the thermal image based on their importance. Important pixels (those corresponding to significant features in the visible image) receive different treatment compared to non-important pixels. Specifically, the luminance of important pixels is adjusted less aggressively or differently than non-important pixels, preventing over-saturation while maintaining definition in critical areas.

The patent dynamically adjusts the luminance parameter of thermal image pixels based on their importance classification. By changing the luminance parameter selectively - increasing it for some pixels while maintaining or decreasing it for others - the system optimizes image definition in bright regions without causing harmful over-luminance effects in certain portions.

The patent divides the thermal image into different quality zones based on pixel importance. Important pixels (those aligned with significant visible image features) are distinguished from non-important pixels. The luminance adjustment is then applied locally - with different adjustment magnitudes or directions - to maintain overall visibility while preserving definition in specific important portions.

Instead of uniformly adjusting all pixel luminance values, the patent applies partial adjustment only to non-important pixels or applies excessive adjustment (luminance increase) selectively to certain regions while maintaining or reducing luminance in important regions. This partial action approach improves overall visibility without compromising definition in critical areas.