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Watanabe Lab
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The lab creates measurement and information processing systems that use light.
AboutAbout the lab
Creating new measurement with light.
The Watanabe Lab researches and develops new measurement systems and information processing systems that center on optical technology and combine image processing and information technology.
The lab is developing a system that measures the phase information of biological cell samples in a non-contact, non-invasive way, with extremely high precision and speed.
It is also working on the miniaturization of an ultrafast optical server for video retrieval.
The lab has two research groups: the phase group and the correlation group.
Key terms
- Phase information
- Information that describes how far a light wave has advanced in its cycle. It is a clue for determining the shape and volume of colorless, transparent objects.
- Digital holographic microscope
- A microscope that uses digital holography to acquire images of the phase of light at high speed.
- Optical correlator
- A device that uses light to calculate how similar images or data are to each other. It is used for matching and retrieval.
ResearchResearch themes
Centering on optical technology, the lab researches and develops new measurement systems and information processing systems that combine image processing and information technology. The homepage of the lab's website introduces two research topics: measuring the phase of biological cells and an optical server for video retrieval.
*Illustrative imageA measurement system for cell phase
The lab develops a system that measures the phase information of biological cell samples in a non-contact, non-invasive way, with extremely high precision and speed. The keywords are the digital holographic microscope and the planar waveguide.
*Illustrative imageAn ultrafast optical server for video retrieval
This research and development aims to miniaturize an ultrafast optical server for video retrieval. The keywords are the optical correlator, single-pixel imaging, and neural networks.
MembersFaculty
The Watanabe Lab consists of faculty members and doctoral, master's, and undergraduate students.As of 2026
- ProfessorEriko Watanabe
- Assistant ProfessorChang-Joo Lee
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Visa Dove Hologram Rainbow” Dominic Alves / CC BY 2.0 (cropped)
- A measurement system for cell phase: “Phase shift image of cells in 3D” Egelberg / CC BY-SA 3.0 (cropped)
- An ultrafast optical server for video retrieval: “Virginia Tech - data center” Christopher Bowns / CC BY-SA 2.0 (cropped)
- Related lab (Miyamoto Lab): “Evanescent wave dynamic light scattering setup side view” Antje Larsen, Benoit Loppinet, Antonio Giuliani / CC BY-SA 4.0 (cropped)
- Related lab (Minoshima Lab): “Femtosecond laser” Mina.ashrafzade / CC BY-SA 4.0 (cropped)
- Related lab (Shirakawa Lab): “Calcium fluorescence imaging schematic” PeaBrainC / CC BY-SA 4.0 (cropped)
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