Eye Imaging Scan Trajectory for Motion-Stable 3D Retinal Data

The patent applies dynamics by transitioning from a static raster scanning pattern to a dynamic spiral scanning trajectory. The scanner continuously moves along a spiral path from the peripheral region toward the central region of the retina, allowing the scanning spot to adapt its position dynamically during each scan. This dynamic approach enables the system to maintain a large field of view while reducing the impact of eye movement and fluid movement on image quality, as the spiral trajectory allows for better temporal distribution of scans across different retinal regions.

The patent applies preliminary action by pre-defining the spiral scanning trajectory that starts from the peripheral region and progresses toward the central region. This predetermined path allows the system to optimize the scanning sequence, performing scans in an efficient order that minimizes total scanning time. The spiral trajectory enables the scanner to cover the entire field of view systematically while controlling inter-scan time, as each spiral scan naturally progresses through regions in a time-efficient manner, allowing for better temporal control compared to conventional raster scanning.

The patent applies segmentation by dividing the retinal imaging task into discrete spiral scan segments rather than using a continuous raster scan. Each spiral scan represents a segment of the overall imaging process, where data is collected along concentric circular paths from the periphery toward the center. This segmentation approach simplifies the scanning control logic compared to complex raster patterns, and the segmented spiral scans produce data that is easier to process and register, reducing computational complexity while maintaining complete data coverage of the retinal surface.