Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Włodzimierz Kasprzak"'
Publikováno v:
Journal of Telecommunications and Information Technology, Iss 4 (2023)
The time-frequency masking approach in blind speech extraction consists of two main steps: feature clustering in a space spanned over delay-time and attenuation rate, and spectrogram masking in order to reconstruct the sources. Usually a binary mask
Externí odkaz:
https://doaj.org/article/28d2485c29ff49bfb3d0fd470f93a002
Publikováno v:
Sensors, Vol 23, Iss 14, p 6279 (2023)
A “long short-term memory” (LSTM)-based human activity classifier is presented for skeleton data estimated in video frames. A strong feature engineering step precedes the deep neural network processing. The video was analyzed in short-time chunks
Externí odkaz:
https://doaj.org/article/186834ea482e468e8a6bb9c74a50b507
Autor:
Paweł Piwowarski, Włodzimierz Kasprzak
Publikováno v:
Applied Sciences, Vol 11, Iss 13, p 5863 (2021)
We consider the problem of image set comparison, i.e., to determine whether two image sets show the same unique object (approximately) from the same viewpoints. Our proposition is to solve it by a multi-stream fusion of several image recognition path
Externí odkaz:
https://doaj.org/article/f5e12e3a686a41faa23e77668181d11e
Publikováno v:
Sensors, Vol 20, Iss 9, p 2689 (2020)
Police and various security services use video analysis for securing public space, mass events, and when investigating criminal activity. Due to a huge amount of data supplied to surveillance systems, some automatic data processing is a necessity. In
Externí odkaz:
https://doaj.org/article/d770e8dbc375495290eeea1ddace58c7
Autor:
Włodzimierz Kasprzak, Piotr Olszewski
Publikováno v:
Zeszyty Naukowe Warszawskiej Wyższej Szkoły Informatyki, Vol 5, Iss 5, Pp 47-62 (2011)
Omawiane są zagadnienia architektury systemów ITS (inteligentne systemy transportowe), w szczególności pod kątem wymagań stawianych przez nią systemom teleinformatycznym. Przedstawiono metodykę projektowania systemów ITS zwaną KAREN/FRAME i
Externí odkaz:
https://doaj.org/article/946f2e6b246c4f7c9360c2e050f866ee
Autor:
Włodzimierz Kasprzak
Publikováno v:
Zeszyty Naukowe Warszawskiej Wyższej Szkoły Informatyki, Vol 2, Iss 2, Pp 9-22 (2007)
W artykule przedstawiono podstawy metodologiczne systemów biometrycznych opartych o analizę obrazów cyfrowych. Skupiono się na opisie metod wyznaczania cech osobniczych w obrazach odcisków palców i dłoni. Zaprezentowano autorskie podejście do
Externí odkaz:
https://doaj.org/article/9b3c5474ebfc4500a52ec7474418f41e
Publikováno v:
Mokslas: Lietuvos Ateitis, Vol 3, Iss 1 (2011)
We are developing two crucial improvements on the time-frequency masking approach to the blind speech separation of underdetermined mixtures when processing anechoic and echoic mixtures. First, the proposed method copes with the usually large amount
Externí odkaz:
https://doaj.org/article/bdd363a24e5141dcbda01c220ed2ecb4
Publikováno v:
Sensors; Volume 23; Issue 14; Pages: 6279
A “long short-term memory” (LSTM)-based human activity classifier is presented for skeleton data estimated in video frames. A strong feature engineering step precedes the deep neural network processing. The video was analyzed in short-time chunks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::8352ae6b74a4b7f7ae68b9d199125510
Publikováno v:
Computer Vision and Graphics ISBN: 9783031220241
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5f0e667bbf472a2c35d48f997eb1725
https://doi.org/10.1007/978-3-031-22025-8_1
https://doi.org/10.1007/978-3-031-22025-8_1
Publikováno v:
Annals of Computer Science and Information Systems.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7e2747fee1fa6410633f30a25af889b
https://doi.org/10.15439/2022f195
https://doi.org/10.15439/2022f195