Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Joni Orava"'
Publikováno v:
Journal of Food Engineering. 112:112-116
The aim of this study was to cluster minced meat samples temporally by different imaging systems and to study if a normal consumer digital camera can be used to evaluate the quality of minced meat during storage period. A set of minced meat samples o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75bffa63dcf8ef58c1257fb9e35847c0
https://doi.org/10.1016/j.jfoodeng.2012.03.012
https://doi.org/10.1016/j.jfoodeng.2012.03.012
Autor:
Joni Orava, Juha E. Jääskeläinen, Mikael von und zu Fraunberg, Jukka Antikainen, Markku Hauta-Kasari
Publikováno v:
Optical Review. 18:458-461
It has been noticed that spectral information can be used for analyzing and separating different biological tissues. However, most of the studies for spectral image acquisitions are mainly done in vitro. Usually the main restrictions for in vivo meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b10598adcf9fa29039f142dbcd68ee37
https://doi.org/10.1007/s10043-011-0086-z
https://doi.org/10.1007/s10043-011-0086-z
Publikováno v:
Journal of Display Technology. 6:170-177
A small backlight unit having four LEDs of different colors is designed and fabricated. Traditionally, the backlight units are lit by white cold cathode fluorescent lamps or by white LEDs. Our backlight unit utilizes four monochromatic LEDs. LEDs are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7a192f3e2ac6ba915673273f9aaa07e
https://doi.org/10.1109/jdt.2010.2041746
https://doi.org/10.1109/jdt.2010.2041746
Publikováno v:
Color Research & Application. 32:409-413
A novel diffractive CIE 1931 chromaticity diagram is generated by utilizing surface relief gratings on a plastic sample. A properly illuminated sample is shown to reflect the CIE chromaticity diagram with exact colors and large gamut. Additive color
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c43b4c39d62d42dfe08b01a73938d59
https://doi.org/10.1002/col.20342
https://doi.org/10.1002/col.20342
Additive colour mixing by surface relief gratings utilizing the power spectrum of a fluorescent lamp
Publikováno v:
Journal of Modern Optics. 53:1577-1587
Additive colour mixing produced by diffractive grating structures is studied. The gratings produce almost monochromatic primary colours to a selected viewing angle, providing thus a very large colour gamut. The colours inside the gamut are obtained b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c55a90e3bc552af0417056bfa47820a2
https://doi.org/10.1080/09500340600578344
https://doi.org/10.1080/09500340600578344
Publikováno v:
Color Research & Application. 29:217-221
The mean color errors of a high-quality digital camera are defined in CIELAB and CIEDE2000 ΔE units by using 16 ceramic color samples, whose accurate CIELAB values have been measured by a calibrated spectrophotometer. The bandwidths of CCD's color f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d6532b071e90e6e0f3067a6267adcd1
https://doi.org/10.1002/col.20007
https://doi.org/10.1002/col.20007
Autor:
Joni Orava, Jouni Hiltunen, Niko Penttinen, Ville Heikkinen, Ana Gebejes, Markku Hauta-Kasari
Publikováno v:
Lecture Notes in Computer Science ISBN: 9783319079974
ICISP
ICISP
In this study spectral and spatial characterization of a seven channel FluxData 1665 MS7 three-CCD spectral video camera was performed in terms of the sensor spectral sensitivity, linearity, spatial uniformity, noise and spatial alignment. The result
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c7a0cb3362272bba902a6b0f3af682c
https://doi.org/10.1007/978-3-319-07998-1_12
https://doi.org/10.1007/978-3-319-07998-1_12
Autor:
Sarita Keski-Saari, Markku Hauta-Kasari, Markku Keinänen, Laure Fauch, Lars Granlund, Joji Sakamoto, Ilkka Porali, Elina Oksanen, Jouni Hiltunen, Jennifer Dumont, Joni Orava
Publikováno v:
Lecture Notes in Computer Science ISBN: 9783319079974
ICISP
ICISP
Many kinds of spectral image formats are used for various applications, but there is still no existing standard format. Natural Vision data file format is one of the best possible candidates for the standard of spectral image format due to its flexib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d1b5632e12da22fa5917db96ad30bb8
https://doi.org/10.1007/978-3-319-07998-1_15
https://doi.org/10.1007/978-3-319-07998-1_15
Publikováno v:
Journal of the Optical Society of America. A, Optics, image science, and vision. 25(12)
A method of producing inkless parameric color pairs is studied. In this method, colors are formed additively using diffraction gratings with differing grating periods as primary colors. Gratings with different grating periods reflect different spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a96e22feddb0f73422b4c6470ca0744a
https://pubmed.ncbi.nlm.nih.gov/19037379
https://pubmed.ncbi.nlm.nih.gov/19037379
Autor:
Joni Orava, Toni Saastamoinen, Seppo Honkanen, Hemmo Tuovinen, Vishal Gandhi, Markku Hauta-Kasari, Janne Laukkanen
Publikováno v:
Applied Optics. 54:1606
We present the design and fabrication of diffractive optical elements for optical identification purposes. Two methods for optical identification are discussed. In this feasibility study, approaches using one and two binary reflective diffraction gra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e605611b5c493477f9f40ae30c58207
https://doi.org/10.1364/ao.54.001606
https://doi.org/10.1364/ao.54.001606