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Wyszukujesz frazę "human vision" wg kryterium: Temat


Tytuł:
Digital luminance photometry in the context of the human visual system
Autorzy:
Słomiński, Sebastian
Powiązania:
https://bibliotekanauki.pl/articles/2173705.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
human vision
luminance distribution measurements
glare
lighting technology
widzenie ludzkie
pomiar rozkładu luminancji
blask
technologia oświetleniowa
Opis:
Almost all solutions in modern lighting systems are based on LED technology. Luminance and obvious ease of control are the key characteristics of this light source. At the same time, luminances at the level of 108 cd/m2 are a significant advantage of LED in design applications, where high luminous intensity amplification is important. However, in general and in road lighting applications, LED luminaires represent a source of potential discomfort glare. Unfortunately, lighting technology’s metrology lags behind LED parameter development and optimization. The results of luminance measurements of the same luminaires, made with a luminance camera and meters with a measuring field, differ. The differences even appear for the same imaging luminance measuring devices with different lenses. This article presents the results of experiments and detailed analyzes related to modern digital luminance photometry based on the use of digital image sensors. Luminance tests were conducted on multi-source research models of luminaires. Traditional luminance measuring equipment with a measuring field was used in the experiment. The research was also supplemented with the measurements made using CCD/CMOS luminance cameras with selected components where the angular field of view of each pixel was a 0.45 min arc corresponding to the highest average human sight parameters. The results confirm that the average luminance value for multi-source luminaires depends on the measurement system configuration. It has been proposed to standardize the angular field of view parameters of all measurement systems, where the measurement aims to obtain a value that directly relates to human visual impressions (e.g. glare).
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 5; art. no. e143103
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spectral sensitivity of human vision to the light pulses
Czułość widmowa wzroku ludzkiego na impulsy światła
Autorzy:
Brailovsky, V.
Pyslar, I.
Rozhdestvenska, M.
Michalska, M.
Powiązania:
https://bibliotekanauki.pl/articles/408315.pdf
Data publikacji:
2018
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
RGB LED
light puls
human vision
information system
dioda RGB LED
impuls świetlny
ludzki wzrok
system informacyjny
Opis:
In the paper we represent experimental results of the research of human vision sensitivity to pulsed radiation of discrete light emitting diodes (LEDs) of different colors when their dissipated electrical power was the same. We used color components of RGB LED matrix and determined the values of the dissipated power at which resultant LED radiation was perceived as white light. These power values were used to investigate sensitivity of human eye to radiation of each color of RGB matrix. Spectral characteristic of RGB LED under investigation was checked for presence of additional spectral components. The results we obtained give the possibility to develop information systems with concealment of the data transfer process using white light which color components are informative.
W artykule zostały przedstawione wyniki badań eksperymentalnych czułości wzroku ludzkiego na promieniowanie impulsowe diod LED o różnych kolorach światła przy jednakowych rozpraszanych na nich mocach elektrycznych. Za pomocą macierzy RGB określa się wielkości mocy rozpraszanej na diodach LED macierzy, przy których wynikające promieniowanie diod LED jest odbierane jako białe. W tak określonych mocach elektrycznych została zbadana czułość ludzkiego widzenia na pulsacyjne promieniowanie każdej z diod LED matrycy RGB. Charakterystyka widmowa badanej diody RGB LED została sprawdzona pod kątem obecności dodatkowych składowych widmowych. Uzyskane wyniki umożliwią opracowanie systemów ukrytej transmisji informacji za pomocą światła białego, którego składowe widmowe mają charakter informacyjny.
Źródło:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2018, 8, 1; 32-35
2083-0157
2391-6761
Pojawia się w:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wizja człowieka ponowoczesnego a tomistyczna teoria osoby
The vision of postmodern man and Thomistic theory of the person
Autorzy:
Wolska, Urszula
Powiązania:
https://bibliotekanauki.pl/articles/452636.pdf
Data publikacji:
2015
Wydawca:
Naukowe Towarzystwo Tomistyczne
Tematy:
postmodernizm
beznadzieja
człowiek ponowoczesny
ujęcie osobowe
tomistyczne ujęcie
ochrona osób
post-modernism hopelessness
postmodern man
human vision
personal approach
Thomistic approach
persons protection
Opis:
The Article tries to extract from the available literature a postmodern vision of man, understand him and his efforts to search for identity in an ever-changing world. It is first and foremost the manifestation of that specific antidote for the disease post-modernism convenience or, in the words of Giovanni Reale, ills and “evil afflicting modern man”, that we’ll find in the Thomistic theory of the person. The work includes an introduction, four parts and a conclusion. The first part, Human vision in postmodernism opens with an introduction to postmodernism. Shown are different personalities postmodern and a single phenomenon, as an expression of the glorification of individuality and the freedom of individuals. In the second part, Negative phenomena afflicting human postmodern, we show details about the adverse human phenomena of the world around us. It shows the source and the main issues, such as nihilism, scientism, human identity crisis, the infantile culture and human civilization, excess and lack of civilization and the problem of deteriorating human spiritual condition postmodern. The main emphasis on problems related to materialize, utilitarianism and fragmentation resulting in loneliness, loss of security, loss, anxiety and meaninglessness of life aimlessly, losing any value, negating the difference between good and bad, and true and false. As well as the exclusion of the poor and broken interpersonal relationships in families and social groups, the enslavement of man by the infantile culture, lack of confidence and identity, anti-humanism and spirituality skipping. Emphasized the impact of these phenomena on the health and condition of the human spirit as well as the helplessness of the human person in society risks and also breaking relationships within families and social groups, anti-humanism and skipping spirituality. In the third part, The vision of man as a person is shown Thomistic definitions of the person and the problems associated with the Thomistic vision of man as a person, such as the existence, subjectivity, autonomy and dignity of the person, the personal relations, community of people, a person as a creator of culture and the culture of protecting people. Fourth part, The man recognized as the person in the face of postmodern vision of man, analyzed contents from the second and third part, and confronted them with the Thomistic theory of the person. All this is to show that the Thomistic shot of a man as a person can be helpful in reducing the negative effects of post-modernism and all ills postmodern.
Źródło:
Rocznik Tomistyczny; 2015, 4; 191-214
2300-1976
Pojawia się w:
Rocznik Tomistyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intuitive User Interfaces for Mobile Manipulation Tasks
Autorzy:
Zubrycki, I.
Granosik, G.
Powiązania:
https://bibliotekanauki.pl/articles/950996.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
Intefraces
human-robot interaction
ROS
Vision Systems
Opis:
This article describes interactive methods that can ease difficult manipulation tasks in Search & Rescue operations. We discuss the requirements that are necessary for a telemanipulation system to be successfully used. These include not just correctness of generated motion but also ergonomy, mobility and interactivity of the operator’s interface. We show that grippers with one or more degrees of freedom can be intuitively controlled by different interface mechanisms, supported by 3D vision systems. Tests are performed both in the simulation environment and with real grippers. A practical pipeline for a direct control and learning the system is also presented.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2015, 9, 1; 41-52
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Human–robot cooperation in sorting of randomly distributed objects
Autorzy:
Jezierski, Edward
Łuczak, Piotr
Smyczyński, Paweł
Zarychta, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/229240.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
human–robot cooperation
vision system
collaborative robots
Opis:
The paper presents the possibilities of teaching a robot controller to perform operations of autonomous segregation of objects differing in features that can be identified using a vision system. Objects can be arranged freely on the robot scene also covered with others. In the learning phase, a robot operator presents the segregation method by moving subsequent objects held in a human hand, e. g. a red object to container A, a green object to container B, etc. The robot system, after recognizing the idea of segregation that is being done using the vision system, continues this work in an autonomous way, until all identified objects will be removed from robotic scene. There are no restrictions on the dimensions, shapes and placement of containers collecting segregated objects. The developed algorithms were verified on a test bench equipped with two modern robots KUKA LBR iiwa 14 R820.
Źródło:
Archives of Control Sciences; 2019, 29, 4; 603-615
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tracking Exercise Motions of Older Adults Using Contours
Autorzy:
Havens, T C
Alexanderson, G L
Abbott, C C
Keller, J M
Skubic, M
Rantz, M
Powiązania:
https://bibliotekanauki.pl/articles/108766.pdf
Data publikacji:
2009
Wydawca:
Społeczna Akademia Nauk w Łodzi
Tematy:
Computer vision
human factors
human motion capture
swarm optimization
contour extraction
Opis:
In this paper we describe the development of a novel markerless motion capture system and explore its use in documenting elder exercise routines in a health club. This system uses image contour tracking and swarm intelligence methods to track the location of the spine and shoulders during three exercises — treadmill, exercise bike, and overhead lateral pull-down. Validation results show that our method has a mean error of approximately 2 degrees when measuring the angle of the spine or shoulders relative to the horizontal. Qualitative study results demonstrate that our system is capable of providing important feedback about the posture and stability of elders while they are performing exercises. Study participants indicated that feedback from our system would add value to their exercise routines.
Źródło:
Journal of Applied Computer Science Methods; 2009, 1 No. 2; 21-42
1689-9636
Pojawia się w:
Journal of Applied Computer Science Methods
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Small batch size robot programming with human in the loop
Autorzy:
Takarics, B.
Sziebig, G.
Korondi, P.
Powiązania:
https://bibliotekanauki.pl/articles/385086.pdf
Data publikacji:
2009
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
robot programming
vision system
sme robots
human-machine communication
Opis:
Robot programming methodologies are moving from the traditional to more human friendly, rapid and flexible programming alternatives. In this paper a new robot programming methodology is introduced. The proposed programming methodology physically disconnects the robot programmer from the robot itself. Applications of the proposed methodology in grinding and welding operations with experimental results as well are presented.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 4; 228-231
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cooling fan controlled by embedded vision system
Autorzy:
Kula, Sebastian
Powiązania:
https://bibliotekanauki.pl/articles/376210.pdf
Data publikacji:
2020
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
computer vision
deep neural networks
electromechanical systems
human computer interaction
Opis:
The HMI (human machine interaction) systems are widely used to control machines and variety of devices. Currently the HMI solutions, based on touch screens are almost commonly used in many domains, however the number of devices, which interaction with the user is based on speech recognition or user gesture recognition increases systematically. The paper focuses on the electromechanical system, which applies gestures and handwritten digits to control the speed of the DC cooling fan. The system crucial elements are the AVR microcontroller and the developer board, equipped with the embedded supercomputer NVIDIA Jetson TX1. To create the software part of the system artificial intelligence algorithms and deep neural networks were applied. The paper describes the complete routine of data preprocessing, deep neural network training and testing with the use of the GPU Tesla K20 and with the use of the DIGITS (Deep Learning GPU Training System), deployment of the trained model on Jetson TX1 board and the system execution. The system enables to control the fan through the two gestures (“stone”, ”paper”) or through four handwritten digits.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2020, 104; 7-16
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Madagaskar nad przepaścią. Obraz rozpadającego się świata w nowelach Raharimanany
Madagascar Over the Precipice. The World Falling Apart in Raharimanana’s Short Stories
Autorzy:
Kalinowska, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/522740.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Warszawski. Katedra Języków i Kultur Afryki. Polskie Towarzystwo Afrykanistyczne
Tematy:
Madagascar
Raharimanana
short story
human misery
tragic vision of the world
Opis:
This paper aims to shed light on short stories of Raharimanana – a Malagasy writer, poet, playwright and novelist (born in 1967) – as well as the image of reality of Madagascar and its inhabitants. The analysis is based on two literary works by Raharimanana, which are ones of his earliest: the series of short stories – Lucarne (1996) and Rêves sous le linceul (1998). The author analyses the situation of his mother island by pointing out all its dark sides: poverty, dirt, abjection and squalor. Human beings are wandering in the moral and material darkness; no hope of a feasible exit seems possible; there are hardly ever any signs of tenderness or love visible. Raharimanana’s style, with its rhetorical forms and a specific vocabulary, enhances the expression of his short stories and the image of Madagascar that they reflect.
Źródło:
Afryka; 2015, 42; 63-78
1234-0278
Pojawia się w:
Afryka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Crisis of Social Ties as a Challenge for the Christian Vision of Social Life
Autorzy:
Głąbiński, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/668774.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Papieski Jana Pawła II w Krakowie
Tematy:
Society
social life
a human being
Christian vision of social life
Opis:
The author of this article analyses the crisis of social ties as a huge challenge for the Christian vision of social life. Firstly, he refers to the moral and religious crisis of the post-modern era, and the depreciation of the social status of the human. Then, he presents the uniqueness of human being as well as potentiality. According to the Christian integral anthropology, presented by personalism, man remains a spiritual and material coexistence. In the last part, the author underlines the Christian idea that a society should acknowledge the dignity of each of its members, as well as guarantee the optimal functioning of human communities. Consequently, social procedures and institutions should be preceded by a consensus assuring the ethical minimum. If a society does not accept the fundamental values like: the dignity of every human being, the protection of their life, justice, equality, solidarity, it cannot function, at least not as a community of persons.
Źródło:
The Person and the Challenges. The Journal of Theology, Education, Canon Law and Social Studies Inspired by Pope John Paul II; 2018, 8, 2
2391-6559
2083-8018
Pojawia się w:
The Person and the Challenges. The Journal of Theology, Education, Canon Law and Social Studies Inspired by Pope John Paul II
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A lightweight multi-person pose estimation scheme based on Jetson Nano
Autorzy:
Liu, Lei
Blancaflor, Eric B.
Abisado, Mideth
Powiązania:
https://bibliotekanauki.pl/articles/30148243.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
human pose estimation
lightweight model
Edge AI
deep learning
computer vision
Opis:
As the basic technology of human action recognition, pose estimation is attracting more and more researchers' attention, while edge application scenarios pose a higher challenge. This paper proposes a lightweight multi-person pose estimation scheme to meet the needs of real-time human action recognition on the edge end. This scheme uses AlphaPose to extract human skeleton nodes, and adds ResNet and Dense Upsampling Revolution to improve its accuracy. Meanwhile, we use YOLO to enhance AlphaPose’s support for multi-person pose estimation, and optimize the proposed model with TensorRT. In addition, this paper sets Jetson Nano as the Edge AI deployment device of the proposed model and successfully realizes the model migration to the edge end. The experimental results show that the speed of the optimized object detection model can reach 20 FPS, and the optimized multi-person pose estimation model can reach 10 FPS. With the image resolution of 320×240, the model’s accuracy is 73.2%, which can meet the real-time requirements. In short, our scheme can provide a basis for lightweight multi-person action recognition scheme on the edge end.
Źródło:
Applied Computer Science; 2023, 19, 1; 1-14
1895-3735
2353-6977
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vision-based biomechanical markerless motion classification
Autorzy:
Liew, Yu Liang
Chin, Jeng Feng
Powiązania:
https://bibliotekanauki.pl/articles/2204259.pdf
Data publikacji:
2023
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Instytut Informatyki Technicznej
Tematy:
vision
single camera
markerless
stick model
human motion
motion classification
data mining
Opis:
This study used stick model augmentation on single-camera motion video to create a markerless motion classification model of manual operations. All videos were augmented with a stick model composed of keypoints and lines by using the programming model, which later incorporated the COCO dataset, OpenCV and OpenPose modules to estimate the coordinates and body joints. The stick model data included the initial velocity, cumulative velocity, and acceleration for each body joint. The extracted motion vector data were normalized using three different techniques, and the resulting datasets were subjected to eight classifiers. The experiment involved four distinct motion sequences performed by eight participants. The random forest classifier performed the best in terms of accuracy in recorded data classification in its min-max normalized dataset. This classifier also obtained a score of 81.80% for the dataset before random subsampling and a score of 92.37% for the resampled dataset. Meanwhile, the random subsampling method dramatically improved classification accuracy by removing noise data and replacing them with replicated instances to balance the class. This research advances methodological and applied knowledge on the capture and classification of human motion using a single camera view.
Źródło:
Machine Graphics & Vision; 2023, 32, 1; 3--24
1230-0535
2720-250X
Pojawia się w:
Machine Graphics & Vision
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lifelogging system based on averaged Hidden Markov Models: dangerous activities recognition for caregiver support
Autorzy:
Postawka, A.
Rudy, J.
Powiązania:
https://bibliotekanauki.pl/articles/305668.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
lifelogging
abnormal human activity recognition
machine vision
Microsoft Kinect
Hidden Markov Models
Opis:
In this paper, a prototype lifelogging system for monitoring people with cognitive disabilities and elderly people as well as a method for the automatic detection of dangerous activities are presented. The system allows for the remote monitoring of observed people via an Internet website and respects the privacy of the people by displaying their silhouettes instead of their actual images. The application allows for the viewing of both real-time and historical data. The lifelogging data (skeleton coordinates) needed for posture and activity recognition are acquired using Microsoft Kinect 2.0. Several activities are marked as potentially dangerous and generate alarms sent to caregivers upon detection. Recognition models are developed using Averaged Hidden Markov Models with multiple learning sequences. Action recognition includes methods for dierentiating between normal and potentially dangerous activities (e.g., self-aggressive autistic behavior) using the same motion trajectory. Some activity recognition examples and results are presented.
Źródło:
Computer Science; 2018, 19 (3); 257-278
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
WOLNOŚĆ I JEJ ZAFAŁSZOWANE WIZJE W ŚWIETLE DOKUMENTÓW KOŚCIOŁA KATOLICKIEGO
Liberty and its distorted vision in the light of the documents of the Catholic Church
Autorzy:
STEFANIAK, Artur
Powiązania:
https://bibliotekanauki.pl/articles/483379.pdf
Data publikacji:
2020-01-02
Wydawca:
Wyższe Seminarium Duchowne im. św. Jana Pawła II Diecezji Siedleckiej
Tematy:
wolność
wolność wyboru
sumienie
wizja Boża ludzkiej wolności
wolność w Bogu
liberty
freedom of choice
conscience
the Divine vision of human free- dom
freedom in God
Opis:
Liberty and its distorted vision in the light of the documents of the Catholic Church One of the fundamental values in human life is freedom. In order to feel truly free, a lifelong process of education for freedom is needed, which presumes the existence of appropriate foundations and the necessity of the truth about man. The desire to be free is inscribed in the heart of man. The teachings of Catechism of the Catholic Church show that freedom is rooted in the mind and will of man with the possibility to act or not to act, to do something, therefore, to take voluntary action. The fundamental elements in the definition of freedom are external freedom and internal freedom. In the internal aspect, it is simply the power of an individual to make choices and decisions concerning the world of his own beliefs, views, etc. Freedom in this aspect refers to the internal autonomy of the person. The second is the external aspect called external or social freedom. It is choice of actions as part of mans everyday existence, undertaken within the framework of function- ing in society. The third fundamental element of Christian understanding of freedom is good. The core of freedom is not to do what man can do by nature, or do anything, because the real boundaries are defined by good. Man, as he was created with his freedom participating in the freedom of God, should not demand complete moral autonomy separated from the existential reference to the Creator. As a person, man has been blessed with intelligence and free will, and may therefore use these qualities to oppose his Creator claiming complete sovereignty. The problem with freedom of today’s man is frequently connected with the problem of sexuality. In a convenient way man wants to decide what is good and what is bad. He wants to decide how he will use his sexuality. It should also be said that man of- ten wants to use his sexuality and its attributes for narrow purposes, which are in apparent contradiction with the widely held beliefs.
Źródło:
Teologiczne Studia Siedleckie; 2019, XVI/16; 73-85
1733-7496
Pojawia się w:
Teologiczne Studia Siedleckie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
THE GOSPEL’S VISION FOR WOMEN AND THE FEMININE GENIUS
Autorzy:
Cathey, Alexandra
Powiązania:
https://bibliotekanauki.pl/articles/507630.pdf
Data publikacji:
2017-12-30
Wydawca:
International Étienne Gilson Society
Tematy:
Gospel vision for women
Feminine Genius
culture of life
authentic human relationships
spiritual motherhood
Opis:
The spiritual impoverishment of humanity is directly tied to the marginalization of women that has prevented them from fully expressing their feminine genius in both the home and in society. What is need to remove obstacles to the feminine genius is the adoption of the Gospel vision for women and the espousal of Jesus Christ’s attitude toward women. By showing openness, respect, acceptance, and tenderness towards women, the feminine gifts will make an indispensable contribution to the growth of a culture that promotes a culture worthy of persons, a world in which human relationships are more honest and authentic. Women, beginning with their daily relationships with people, offer to humanity the richness of their sensitivity, intuitiveness, generosity, and fidelity. The family and society, as John Paul II noted, direly need the maternal and healing embrace of women.
Źródło:
Studia Gilsoniana; 2017, 6, 4; 511-526
2300-0066
Pojawia się w:
Studia Gilsoniana
Dostawca treści:
Biblioteka Nauki
Artykuł

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