- Deep dive
Field of view expansion
Gigapixel imaging and FOV expansion
By combining an Optotune 2D fast steering mirror and a focus tunable lens a unique gigapixel imaging system is obtained. The 2D mirror is used to select a small area of interest (AOI) within a large field of view (FOV), while the liquid lens allows to quickly adapt the focus. This combination replicates the principle of the human eye.
Extending the FOV while maintaining high resolution is crucial for a variety of applications. For example, in public surveillance of train stations or airports, a large scene needs to be imaged with the required resolution to do detailed object detection or face recognition. Another example is traffic sign detection in autonomous driving, which benefits from FOV expansion by enabling to read signs at a larger distance.
Size comparison between the different field of views, at a 1m distant plane. The narrow angle FOV can be steered around within the mirror travel limits.
- Large FOV,
- High resolution,
- Virtually unlimited depth of focus,
Combine field of view expansion with defect identification to “zoom-in” on single defects and identify patterns.
Combine FOV expansion with face-recognition to “zoom-in” on individual faces within a crowd of people.
Zoom into the Gigapixel Image of Zürich city using the top left icon.
Example of a Stitched Image using the FOV Expansion Development Kit. The view on this image was cropped, total of 650 MP.