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Wyszukujesz frazę "chroma" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Stereoscopic video chroma key processing using NVIDIA CUDA
Autorzy:
Sagan, J.
Powiązania:
https://bibliotekanauki.pl/articles/106272.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
NVIDIA CUDA
chroma key processing
GPU
CPU
stereoscopic images
Opis:
In this paper, I use the NVIDIA CUDA technology to perform the chroma key algorithm on stereoscopic images. NVIDIA CUDA allows to process parallel algorithms on GPU. Input data are stereoscopic images with the monochromatic background and the destination background image. Output data is the combination of inputs by using the chroma key. I compare the algorithm efficiency between the GPU and CPU execution.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2013, 13, 1; 81-87
1732-1360
2083-3628
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigating the pitch strength of short pur e-tone pulses in middle frequency range through their chroma recognition by absolute-pitch listeners
Autorzy:
Rakowski, Andrzej
Rogowski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/780313.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
pitch
absolute pitch
pitch strength
chroma
musical scale
vibrations
tone pulses
Opis:
A method is proposed for estimating the pitch strength of sounds by measuring the proportion of correct recognitions of their musical pitch (chroma) by expert listeners possessing full absolute pitch. Full absolute pitch (AP) is the ability of some musicians to preserve in their long-term auditory memory the pitch templates of the twelve chromatic tones of the contemporary music system (C, C#, D... etc.) based on the frequency A4 = 440 Hz. This ability is preserved across different octaves in most of the musical pitch scale. Five expert AP listeners, in individual, computer-run sessions, were asked to identify and name the pitch chromas of short tone pulses cut out of twelve sinusoidal vibrations corresponding to the chromatic scale C5 - B5 (523.3 - 987.8 Hz). These tone pulses were composed of n cycles. The value of n was 4, 8, and 16, and so the total number of stimuli investigated was 12 x 3 = 36. All these stimuli were presented in random order to the five AP listeners in a single test, which was run twenty-six times in consecutive sessions (the results of the first session were not used in computations). The results show an increase in correct chroma recognition (and consequently of the pitch strength of a pulse), with n rising from 4 to 16. At n = 4 or 8, the results show also a dependence of chroma recognition on the total pulse duration. Thus, for tone pulses with a low number of cycles (at n=4 and 8), the pitch strength diminishes with increasing pitch and is different in neighbouring parts of a withinoctave musical scale. The discovery of these differences may indicate the relatively high precision of the newly-presented method in estimating the pitch strength of musical sounds.
Źródło:
Interdisciplinary Studies in Musicology; 2009, 8; 271-278
1734-2406
Pojawia się w:
Interdisciplinary Studies in Musicology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Instrumental color measurement of meat and meat products in X-RiteColor® Master
Autorzy:
Ferysiuk, Karolina
Wójciak, Karolina M.
Kęska, Paulina
Stasiak, Dariusz M.
Powiązania:
https://bibliotekanauki.pl/articles/118219.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
wavelength
hue angle
chroma
CIE L*a*b*
długość fali
kąt barwy
nasycenie
Opis:
The aim of the study was to evaluate the influence of lyophilized plant extract on color of canned meat with reduced amount of sodium (III) nitrite measured by spectrophotometric methods. The results were collected through the X-RiteColor® Master software. The results of the experiment show that reduc-tion of nitrite salt is possible but additional fortification is required: the best results were obtained when the extract was added in the amount of 0.015%.
Źródło:
Applied Computer Science; 2020, 16, 3; 69-79
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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