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Tytuł:
Porównanie sprzętowych implementacji dwóch popularnych detektorów cech punktowych
Comparison of hardware implementations of two popular corner detectors
Autorzy:
Kraft, M.
Fularz, M.
Powiązania:
https://bibliotekanauki.pl/articles/153965.pdf
Data publikacji:
2009
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
FPGA
detektor narożników
Harris
FAST
corner detector
Opis:
W artykule zaprezentowano sprzętowe implementacje dwóch detektorów narożników - detektora Harrisa i detektora FAST - w strukturach FPGA. Prędkość przetwarzania nie ustępuje prędkości uzyskiwanej na współczesnych komputerach osobistych, jednakże zastosowanie niedrogich układów FPGA umożliwia ograniczenie poboru mocy, a także kosztu oraz wymiarów kompletnego systemu. W artykule zawarto opis obu algorytmów, schematy blokowe ich sprzętowych implementacji, a także podsumowanie i porównanie ilości zasobów układu FPGA wykorzystywanych przez obie implementacje. Wykonano również wstępną analizę wyników uzyskanych przez zastosowanie zaimplementowanych detektorów na sekwencji obrazów.
Many contemporary computer and machine vision applications require finding corresponding points in image sequences. For that purpose many point feature detectors have been developed. Most of them detect corners, i.e. points that mark object boundaries, or boundaries of significant object parts as features. In this paper there are presented the implementations of two popular corner detectors - the Harris [2] and FAST [3] corner detector - in FPGA structure. The proposed solutions enable processing of 512x512 pixel, 8-bit grayscale image data with the speed of over 400 frames per second (FAST), and over 350 frames per second (Harris). The processing speeds are the same or even better than those that can be achieved using modern high-performance PCs. FPGA implementations, however, are less power-hungry, relatively inexpensive and more compact, which is critical in many applications. Our implementations are targeted at applications in mobile robotics. The paper contains a short description of the implemented algorithms, block diagrams of the implemented architectures, as well as the summary of the FPGA resources required by both implementations. A preliminary analysis of performance of the implemented algorithms with regards to feature repeatability is also carried out. The results show that the implementation of the FAST algorithm has better performance in terms of speed. Also, the FAST algorithm performs better on image sequences with strong structure - urban, interiors etc. The Harris detector implementation, although in general slower and a little more resource-hungry than the FAST implementation (requires hardware multipliers), demonstrates better performance on poorly structured scene sequences - grass, dirt roads etc. These conclusions are consistent with the results of research carried out before [3, 4].
Źródło:
Pomiary Automatyka Kontrola; 2009, R. 55, nr 8, 8; 618-620
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pojęcie nieśmiertelności w filozofii Johna Harrisa
The notion of immortality in John Harriss philosophy
Autorzy:
Pokorski, Bartosz
Powiązania:
https://bibliotekanauki.pl/articles/1621888.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
immortality
human enhancement
enhancing evolution
John Harris
Opis:
Głównym celem artykułu jest analiza pojęcia nieśmiertelności, wpisanie go w kontekst debaty bioetycznej poświęconej pojęciu udoskonalania człowieka i przedstawienie problemów wiążących się z tymi zagadnieniami. W tekście podejmuję próbę krótkiego omówienia kwestii udoskonalania człowieka w nawiązaniu do postępu technologicznego i zarysowanego przez Harrisa programu ewolucji udoskonalającej. Następnie staram się pokazać czym dla Harrisa jest nieśmiertelność, jakie jej typy wyróżnia, dlaczego warto się nią zajmować i w jaki sposób. Wreszcie przedstawiam główne zarzuty kierowane pod adresem nieśmiertelności i to, jak Harris się im przeciwstawia. Celem pobocznym, czy raczej postulatem, jest próba zaproponowania kierunku dalszych badań zarówno nad zagadnieniem nieśmiertelności jak i w dziedzinie udoskonalania człowieka.
The main goal of this article is to analyze the notion of immortality, to place it in the context of bioethical debate over the concept of human enhancement and to present problems related to these issues. In the text, I attempt to briefly discuss the question of human enhancement in reference to the technological progress and Harris's program of enhancing evolution. Afterwards I try to show what for Harris immortality is, what types of it he distinguishes, why is it worth dealing with and how. Finally, I present the main allegations against immortality and the way Harris opposes them. A side goal, or rather a postulate, is my attempt to propose a direction for further research both on the issue of immortality and in the field of human enhancement.
Źródło:
Analiza i Egzystencja; 2018, 43; 43-64
1734-9923
2300-7621
Pojawia się w:
Analiza i Egzystencja
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model reduction using Harris hawk algorithm and moment matching
Autorzy:
Sharma, Aswant Kumar
Sambariya, Dhanesh Kumar
Powiązania:
https://bibliotekanauki.pl/articles/1955205.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Harris hawk optimization
ISE
MIMO
moment matching
model order reduction
SISO
optymalizacja Harris hawk
dopasowanie momentu
redukcja rzędu modelu
Opis:
Physical machine systems are represented in the form of differential equations. These differential equations may be of the higher order and difficult to analyses. Therefore, it is necessary to convert the higher-order to lower order which replicates approximately similar properties of the higher-order system (HOS). This article presents a novel approach to reducing the higher-order model. The approach is based on the hunting demeanor of the hawk and escaping of the prey. The proposed method unifies the Harris hawk algorithm and the moment matching technique. The method is applied on single input single output (SISO), multi-input multi-output (MIMO) linear time–invariant (LTI) systems. The proposed method is justified by examining the result. The results are compared using the step response characteristics and response error indices. The response indices are integral square error, integral absolute error, integral time absolute error. The step response characteristics such as rise time, peak, peak time, settling time of the proposed reduced order follows 97%–100% of the original system characteristics.
Źródło:
Archives of Electrical Engineering; 2021, 70, 4; 959-978
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of trapezoidal integration method in determining discrete time windows
Autorzy:
Purczyński, J.
Powiązania:
https://bibliotekanauki.pl/articles/97211.pdf
Data publikacji:
2011
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
Dirichlet window
trapezoidal integration method
Blackman-Harris window
Źródło:
Computer Applications in Electrical Engineering; 2011, 9; 12-22
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the classification of Markov chains via occupation measures
Autorzy:
Hernández-Lerma, Onésimo
Lasserre, Jean
Powiązania:
https://bibliotekanauki.pl/articles/1208160.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
absolute continuity
positive Harris recurrence
setwise convergence
measures
Opis:
We consider a Markov chain on a locally compact separable metric space $X$ and with a unique invariant probability. We show that such a chain can be classified into two categories according to the type of convergence of the expected occupation measures. Several properties in each category are investigated.
Źródło:
Applicationes Mathematicae; 2000, 27, 4; 489-498
1233-7234
Pojawia się w:
Applicationes Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pułapka szczęścia współczesnego człowieka
Autorzy:
Żmuda, Barbara
Powiązania:
https://bibliotekanauki.pl/articles/426707.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Papieski Jana Pawła II w Krakowie
Tematy:
szczęście
nieszczęście
pułapka szczęścia
Russel Harris
współczesne społeczeństwo
Źródło:
Logos i Ethos; 2016, (40) Numer specjalny; 41-51
0867-8308
Pojawia się w:
Logos i Ethos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mark Harris as a Naturalistic Theist: The Perspective of the Model of Levels of Analysis
Autorzy:
Bylica, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/553362.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Zielonogórski. Instytut Filozofii
Tematy:
theism
naturalism
naturalistic theism
science and religion
Mark Harris
biblical studies
Opis:
Presently, naturalistic theism is the dominant position in the debate on the relation between science and religion, defending a thesis that the conflict between science and religion is only an apparent one. Also, this version of theism accepts the naturalist assumptions behind contemporary science and attempts to reformulate the beliefs held within the traditional Christian theism in order to present the religious view of reality as not conflicting with the scientific picture of the world. Certain assumptions behind Mark Harris’s views on the relations between science and religion can be described as consistent with naturalistic theism. The model of levels of analysis helps to analyze the most important themes found within naturalistic theism and show how these are described in the works of Harris. The model facilitates the identification of the relations between particular kinds of assumptions behind the position taken from the point of view of naturalistic theism in the debate on the relation between science and religion. The list of most frequently recurring assumptions — that are also important in Harris’s writings — include: the general division of epistemic competence, which assumes theology (religion) to be competent in dealing with the metaphysical issues (Levels 1 and 2) and science to be the only one competent to deliver the empirical statements describing processes and entities found within the empirical sphere (Levels 4 and 5); the acceptance of the naturalistic assumptions behind contemporary science (Level 2) and skepticism toward the religious notions found in the traditional Christian theism describing supernatural interventions and toward the dualist interpretation of human soul (Level 3). This leads to the acceptance of purely scientific, naturalistic, explanations of the events found within the empirical sphere and to skepticism toward the literal meaning of descriptions of empirical events (Level 5) that are not consistent with the anti-interventionist assumptions behind science. Harris’s acceptance of naturalistic theism in terms of the relation between science and religion and his use of the techniques found in the modern biblical scholarship have led him to the ideas of plurality of meanings and the lack of one definite truth with respect to the specific issues he deals with. From the point of view of MLA it is the rejection of super-naturalistic assumptions of the traditional Christian theism and the acceptance of the naturalistic assumptions of science that seems to be the cause of lack of definite truth in his theological explanations.
Źródło:
Filozoficzne Aspekty Genezy; 2015, 12; 7-36
2299-0356
Pojawia się w:
Filozoficzne Aspekty Genezy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Acting Styles of the British New Wave
Autorzy:
ŚLIWIŃSKA, ANNA
Powiązania:
https://bibliotekanauki.pl/articles/920965.pdf
Data publikacji:
2016-11-03
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
acting styles
British New Wave
Richard Harris
Richard Burton
Tom Courtenay
Opis:
Acting Styles of the British New Wave British New Wave cinema is typically associated with two groups of actors. One includes those with an established position (such as Peter Finch, Laurence Olivier or Dirk Bogarde), and the other those at the beginning of their film career. The latter group seems to be much more interesting in terms of their lives, background and their methods of work. Most of them come from a working-class, non-artistic background (from which the directors of New Wave films asked them to draw inspiration). However, all of them received a solid theatrical education. In this way, a unique collage of skills and experience was created, the elements of which produced a very interesting artistic result. This sheds new light on the phenomenon of the British New Wave: actors, graduates of renowned schools, known from the most famous theatres and troupes (such as the Royal Court Theatre, the Royal Shakespeare Company or the Old Vic) end up in films where they are supposed to play characters from the lower social classes, speak their language and make reference to their own memories and background.
Źródło:
Images. The International Journal of European Film, Performing Arts and Audiovisual Communication; 2016, 19, 28; 95-110
1731-450X
Pojawia się w:
Images. The International Journal of European Film, Performing Arts and Audiovisual Communication
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Power system oscillation damping controller design: a novel approach of integrated HHO-PSO algorithm
Autorzy:
Devarapalli, Ramesh
Kumar, Vikash
Powiązania:
https://bibliotekanauki.pl/articles/1845539.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Harris hawk optimization
power system stabilizers
STATCOM
FACTS
particle swarm optimization
Opis:
The hybridization of a recently suggested Harris hawk’s optimizer (HHO) with the traditional particle swarm optimization (PSO) has been proposed in this paper. The velocity function update in each iteration of the PSO technique has been adopted to avoid being trapped into local search space with HHO. The performance of the proposed Integrated HHO-PSO (IHHOPSO) is evaluated using 23 benchmark functions and compared with the novel algorithms and hybrid versions of the neighbouring standard algorithms. Statistical analysis with the proposed algorithm is presented, and the effectiveness is shown in the comparison of grey wolf optimization (GWO), Harris hawks optimizer (HHO), barnacles matting optimization (BMO) and hybrid GWO-PSO algorithms. The comparison in convergence characters with the considered set of optimization methods also presented along with the boxplot. The proposed algorithm is further validated via an emerging engineering case study of controller parameter tuning of power system stability enhancement problem. The considered case study tunes the parameters of STATCOM and power system stabilizers (PSS) connected in a sample power network with the proposed IHHOPSO algorithm. A multi-objective function has been considered and different operating conditions has been investigated in this papers which recommends proposed algorithm in an effective damping of power network oscillations.
Źródło:
Archives of Control Sciences; 2021, 31, 3; 553-591
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Power system oscillation damping controller design: a novel approach of integrated HHO-PSO algorithm
Autorzy:
Devarapalli, Ramesh
Kumar, Vikash
Powiązania:
https://bibliotekanauki.pl/articles/1845528.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Harris hawk optimization
power system stabilizers
STATCOM
FACTS
particle swarm optimization
Opis:
The hybridization of a recently suggested Harris hawk’s optimizer (HHO) with the traditional particle swarm optimization (PSO) has been proposed in this paper. The velocity function update in each iteration of the PSO technique has been adopted to avoid being trapped into local search space with HHO. The performance of the proposed Integrated HHO-PSO (IHHOPSO) is evaluated using 23 benchmark functions and compared with the novel algorithms and hybrid versions of the neighbouring standard algorithms. Statistical analysis with the proposed algorithm is presented, and the effectiveness is shown in the comparison of grey wolf optimization (GWO), Harris hawks optimizer (HHO), barnacles matting optimization (BMO) and hybrid GWO-PSO algorithms. The comparison in convergence characters with the considered set of optimization methods also presented along with the boxplot. The proposed algorithm is further validated via an emerging engineering case study of controller parameter tuning of power system stability enhancement problem. The considered case study tunes the parameters of STATCOM and power system stabilizers (PSS) connected in a sample power network with the proposed IHHOPSO algorithm. A multi-objective function has been considered and different operating conditions has been investigated in this papers which recommends proposed algorithm in an effective damping of power network oscillations.
Źródło:
Archives of Control Sciences; 2021, 31, 3; 553-591
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hip joint arthroscopy in professionally active patients with osteoarthritis
Autorzy:
Drobniewski, Marek
Synder, Marek
Skrzypek, Michał
Pstrągowski, Kajetan
Polguj, Michał
Borowski, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2161984.pdf
Data publikacji:
2019-02-27
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
degenerative disease
return to work
arthroscopy
hip joint
WOMAC
Harris Hip Score
Opis:
Objectives The primary endpoints of the study were to assess the effectiveness of hip joint arthroscopy in the treatment of femoroacetabular impingement (FAI) in patients with joint gap stenosis and to determine if and how quickly patients were able to return to work and physical activity. Material and Methods The prospective study of patients undergoing hip joint arthroscopy due to pain in FAI has been conducted. They were divided into 2 groups depending on the degree of the radiological examination. The criterion was the width of the joint gap. The study group involved 47 patients with hip joint gap of 2–3 mm, identified by means of the standardized X-ray examination. The control group consisted of 45 patients with hip joint gap > 3 mm. The post-operative follow-up period of the patients lasted at least 2 years. In addition, the Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) questionnaire together with Harris Hip Score (HHS) were applied. The patients were also evaluated for the post-operative time period enabling return to work. Results All the patients after hip joint arthroscopy returned to normal physical activity within 12 weeks after operation, enabling their return to work. However, it should be noted that during the post-operative follow-up, pain sensations either recurred or did not regress in 37 patients in the study group and 12 patients in the control group after treatment. The nearly equal results of the WOMAC questionnaire and HHS before operation significantly vary between both groups in the last follow up. In the study group they did not change expressively. Conclusions Despite the little invasiveness, hip joint arthroscopy in patients with joint gap stenosis brings about the far from satisfactory results. This procedure is not worth considering. Despite unsatisfactory pain relief, patients decided to returned to work, due to their occupational position and for fear of losing the job due to long absenteeism. Int J Occup Med Environ Health. 2019;32(1):115–20
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2019, 32, 1; 115-120
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Postural stability disorders in patients with osteoarthritis of the hip
Autorzy:
Truszczyńska, A.
Rąpała, K.
Gmitrzykowska, E.
Trzaskoma, Z.
Drzał-Grabiec, J.
Powiązania:
https://bibliotekanauki.pl/articles/306214.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
postural stability
Biodex
coxarthrosis
Harris Hip Score
WOMAC
stabilność postawy
koksartroza
postawa ciała
Opis:
The osteoarthritis of the hip dominant symptom is pain that leads to disability and to postural and gait disorders. The aim of this study was to analyze postural stability and its impact on disability and pain. The study population consisted of 60 patients and control group of 30. Group 1 (n = 30) included patients with unilateral coxarthrosis, aged 56.2 (±12.3) years, BMI 25.17 (±2.87) kg/m2. There were 16 men (53.3%). The mean age of patients in group 2 (n = 30) with bilateral coxarthrosis was 62.3 (±12.1) years; the mean BMI was 24.87 (±2.06) kg/m2. There were 15 men in this group (50%). The patients were evaluated using the WOMAC, the Harris Hip Score, VAS and the Biodex Balance System. Both study groups had stability index results different than the control group. There was a significant correlation between the stability indexes and BMI. VAS correlated with the M-L plane variance. In group 2, there were significant differences related to disability for the disability scales for all measured parameters. Balance disorder is a basic parameter found in coxathrosis. There is a statistically significant correlation between balance disorders and BMI, VAS and functional scales.
Źródło:
Acta of Bioengineering and Biomechanics; 2014, 16, 1; 45-50
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sky Warden – nowa odsłona rolniczego AT-802
Autorzy:
Strembski, Marcin.
Powiązania:
Lotnictwo 2021, nr 5, s. 8-9
Data publikacji:
2021
Tematy:
L3Harris Technologies
Air Tractor
Lotnictwo operacyjne
Rozpoznanie lotnicze
Samoloty rozpoznawcze
Air Tractor-L3Harris AT-802U Sky Warden (samolot)
Budowa i konstrukcje
Artykuł z czasopisma fachowego
Opis:
W artykule przedstawiono nowy projekt współpracujących ze sobą amerykańskich firm Air Tractor i L3Harris Technologies: samolotu AT-802U Sky Warden, który ma być przeznaczony do zadań zwiadu powietrznego, obserwacji i rozpoznania (ISR) oraz misji bliskiego wsparcia. Konstrukcja Sky Wardena oparta jest na rolniczym AT-802, który ma największą masę użyteczną spośród pozostałych samolotów turbośmigłowych z jednym silnikiem. Opisano budowę samolotu, jej możliwości, zalety oraz zainstalowane systemy. Autor wskazuje, że maszyna ta, mimo swojego archaicznego wyglądu wykorzystuje wiele nowoczesnych technologii.
Fotografie.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Gaston Gross, héritier et continuateur de Maurice Gross et de Zellig Harris
Gaston Gross, heir and successor of Maurice Gross and Zellig Harris
Autorzy:
Le Pesant, Denis
Powiązania:
https://bibliotekanauki.pl/articles/31341262.pdf
Data publikacji:
2023
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
Gaston Gross
history of Distributional and Transformational Grammars
Zellig S. Harris
Maurice Gross
Jean Dubois
Françoise Dubois-Charlier
Opis:
Cet article entend situer le plus précisément possible les travaux de Gaston Gross et de son équipe au sein de ce qu’on peut appeler « L’École des Grammaires Distributionnelles et Transformationnelles », dont les principaux représentants sont Zellig S. Harris, Maurice Gross, Jean Dubois & Françoise Dubois-Charlier, et Gaston Gross. Après avoir évoqué la collaboration de Maurice Gross avec Zellig Harris dans le processus d’élaboration de la théorie des Grammaires Distributionnelles et Transformationnelles, nous mettrons en évidence ce que Gaston Gross emprunte à Maurice Gross et ce en quoi il innove, allant même jusqu’à aborder un aspect du projet initial de Harris qui avait été laissé de côté par Maurice Gross.
This article intends to situate as precisely as possible the work of Gaston Gross and his team within what can be called “The School of Distributional and Transformational Grammars”, whose main representatives are Zellig S. Harris, Maurice Gross, Jean Dubois and Françoise Dubois-Charlier, and Gaston Gross. After discussing the collaboration of Maurice Gross with Zellig Harris in the process of developing the theory of Distributional and Transformational Grammars, we will highlight what Gaston Gross borrows from Maurice Gross and what he innovates, even going so far as to address an aspect of Harris’ original project that had been left out by Maurice Gross.
Źródło:
Neophilologica; 2023, 35; 1-15
0208-5550
2353-088X
Pojawia się w:
Neophilologica
Dostawca treści:
Biblioteka Nauki
Artykuł

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