Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Tamiki Takemori"'
Publikováno v:
Optics Communications. 124:333-344
Optical logic operations based on a selector logic are proposed. Based on the parallelism of optics, the selector logic is realized by data beam selections through a polarization switching device and a birefringent plate. The optical selector unit pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83826b21edf9c5695c1542779a105b9a
https://doi.org/10.1016/0030-4018(95)00603-6
https://doi.org/10.1016/0030-4018(95)00603-6
Publikováno v:
Optics Communications. 119:505-512
Optical latches and flip-flops based on an optical selector logic are proposed to realize optical sequencers. The optical selector proposed here consists of a pair of 90° twisted nematic liquid crystal cells, a birefringent crystal plate, and a mask
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5f31bf0d6337bd9528e0a6ddd5081a6
https://doi.org/10.1016/0030-4018(95)00345-9
https://doi.org/10.1016/0030-4018(95)00345-9
Publikováno v:
Optics Communications. 98:41-46
A method to form a joint pattern before and after the displacement of a light scattering object is presented by using a spatial shifter consisting of a twisted nematic liquid crystal cell and a birefringent plate. The polarization of the speckle patt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a9b5e49027c0e7fed2ddbb51ad02153
https://doi.org/10.1016/0030-4018(93)90755-t
https://doi.org/10.1016/0030-4018(93)90755-t
Publikováno v:
Optics Communications. 95:199-204
The reconstruction of a pure phase object is investigated on the basis of an auto-Wigner distribution function (AWDF). A cylindrical lens is used as a typical example of the pure phase object and its profile is successfully obtained in real time usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2e440abfd06176e33d0f29a0247e871
https://doi.org/10.1016/0030-4018(93)90662-o
https://doi.org/10.1016/0030-4018(93)90662-o
Publikováno v:
Applied optics. 35(17)
We carried out real-time optical image subtraction and edge enhancement based on a speckle modulation technique by using ferroelectric liquid-crystal polarization switches and a ferroelectric liquid-crystal spatial light modulator. A ferroelectric li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d207b364871c265228ea75230e860e76
https://pubmed.ncbi.nlm.nih.gov/21102693
https://pubmed.ncbi.nlm.nih.gov/21102693
Publikováno v:
SPIE Proceedings.
A new method is presented for synthesizing arbitrary grey level intensity patterns based on phase contrast imaging. The concept is grounded on an extension of the Zernike phase contrast method into the domain of full range phase modulation. By contro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::710e793af59eba95b8c000b64fb55ef5
https://doi.org/10.1117/12.262567
https://doi.org/10.1117/12.262567
Publikováno v:
The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec). 2012:1P1-L05_1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::549fe6545a6ecaa4c533644438e71410
https://doi.org/10.1299/jsmermd.2012._1p1-l05_1
https://doi.org/10.1299/jsmermd.2012._1p1-l05_1
Autor:
Tamiki Takemori, Terushige Hori, Yuji Kobayashi, Narihiro Yoshida, Naohisa Mukohzaka, Seiji Fukushima
Publikováno v:
SPIE Proceedings.
A speckle photographic technique was employed for the measurement of displacement of diffuse objects. In this method a double exposure is made on an FLC-SLM and the speckle correlation is detected with a position-sensitive detector. Use of this syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1050db761fa88ab21621bd6dad2a8898
https://doi.org/10.1117/12.132167
https://doi.org/10.1117/12.132167
Publikováno v:
SPIE Proceedings.
A new correlator which outputs 48 correlation values around the correlation peak is described, and several interpolation methods for the detection of the displacement of a speckle pattern with less than one pixel resolution of the linear image sensor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f658c2409ad46c4271cdf2b3b5c29392
https://doi.org/10.1117/12.135299
https://doi.org/10.1117/12.135299
Publikováno v:
SPIE Proceedings.
To obtain the averaged Fourier power spectrum of a time-varying stellar speckle images from a binary star a portable real-time Fourier-transform processor is developed for stellar speckle interferometry, in which the Fourier transform of the image is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::036b6582b3f843a6ac6c3c4c43858315
https://doi.org/10.1117/12.23432
https://doi.org/10.1117/12.23432