US Patent 11803949 Image fusion architecture with multimode operations

Embodiments relate to circuitry for temporal processing and image fusion. An image fusion circuit receives captured images, and generates corresponding image pyramids. The generated image pyramids are raster or tiled processed, and stored in memory. A fusion module receives a first and second image pyramids from the memory, and warps and fuses image pyramids to generate a fused image pyramid, which may be used for further processing, and may also be stored back into the memory. The image fusion circuitry is configurable to operate in a plurality of different configuration modes corresponding to different image fusion applications for fusing image pyramids of received images, including two-frame fusion, temporal filtering, infinite impulse response (IIR) temporal processing, and/or finite impulse response (FIR) temporal processing.