[15a-B409-1~8] Disturbance of light propagating the fluctuating media: The way how to measure and overcome it

[15a-B409-2] Scattering Medium: Foe or Friend in Imaging?
- Correloscopy Turns Foe to Friend -

〇Mitsuo Takeda¹ (1.Utsunomiya Univ.)

Keywords:imaging, speckle, correlation

It seems to be a general belief that a scattering medium is a foe in imaging, and much effort has been made in developing new techniques to cope with the foe, as typified by adaptive optics. Is there a possibility to turn the foe to a friend by reframing? As an answer to this question, we will introduce a computational imaging technique, which we call “correloscopy.” The technique not only permits imaging through a strong scattering medium (for which adaptive optics does not work well) but also turns the scattering medium to a useful imaging vehicle for realizing a lensless microscope (with diffraction-limited resolution) based on speckle intensity correlation.