Steven L. Jacques, Ph.D., Department of Electrical and Computer Engineering Oregon Graduate Institute, Portland, Oregon, USA. email: jacquess@ohsu.edu, https://omlc.org

A prototype polarization camera.

Comparison of white light versus polarization images.

Sclerosing basal cell carcinoma

White light image.	Polarized image.
11-mm-dia. putative cancer lesion in polarized image.	6-mm-dia. abnormal region identified by doctor using eye.

The patient had to return again for a second sugery because the doctor's eye underestimated the extent of the skin cancer.