Temat: human detection - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Detection of human faces in thermal infrared images
Autorzy:: Kowalski, Marcin Ł.
Grudzień, Artur
Ciurapiński, Wiesław
Powiązania:: https://bibliotekanauki.pl/articles/1849135.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: thermal infrared
face detection
biometrics
human detection
Opis:: The presented study concerns development of a facial detection algorithm operating robustly in the thermal infrared spectrum. The paper presents a brief review of existing face detection algorithms, describes the experiment methodology and selected algorithms. For the comparative study of facial detection three methods presenting three different approaches were chosen, namely the Viola-Jones, YOLOv2 and Faster-RCNN. All these algorithms were investigated along with various configurations and parameters and evaluated using three publicly available thermal face datasets. The comparison of the original results of various experiments for the selected algorithms is presented.
Źródło:: Metrology and Measurement Systems; 2021, 28, 2; 307-321
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Histogram of Oriented Gradients with Cell Average Brightness for Human Detection
Autorzy:: Wójcikowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/221424.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: digital image processing
object detection
human detection
Opis:: A modification of the descriptor in a human detector using Histogram of Oriented Gradients (HOG) and Support Vector Machine (SVM) is presented. The proposed modification requires inserting the values of average cell brightness resulting in the increase of the descriptor length from 3780 to 3908 values, but it is easy to compute and instantly gives ≈ 25% improvement of the miss rate at 10‒4 False Positives Per Window (FPPW). The modification has been tested on two versions of HOG-based descriptors: the classic Dalal-Triggs and the modified one, where, instead of spatial Gaussian masks for blocks, an additional central cell has been used. The proposed modification is suitable for hardware implementations of HOG-based detectors, enabling an increase of the detection accuracy or resignation from the use of some hardware-unfriendly operations, such as a spatial Gaussian mask. The results of testing its influence on the brightness changes of test images are also presented. The descriptor may be used in sensor networks equipped with hardware acceleration of image processing to detect humans in the images.
Źródło:: Metrology and Measurement Systems; 2016, 23, 1; 27-36
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Human Detection in Thermal Images Using Low-level Features
Autorzy:: Budzan, S.
Powiązania:: https://bibliotekanauki.pl/articles/114333.pdf
Data publikacji:: 2015
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: human detection
infrared
feature extraction
HOG
Opis:: In this work the human detection method in infrared has been presented. The proposed solution focuses on the use low-level features and detecting parts of the human body. Low–level processing is based on modified HOG (Histogram of Oriented Gradients) algorithm. First, the only squared cells have been used, also calculation of the gradient has been improved. Next, the model of the head from the dataset IR (Infra Red) images has been created, also the model of the human body. Finally, the probability matrix has been examined using minimal distance classifier. The novelty of the proposed solution focuses on the combination of the pixel-gradient and body parts processing, also three stage classification process (head modelling, human modelling and classifier), which has been proposed to reduce the false detection. The experiments were performed on self-created IR images database, which contains images with most of the possible difficult situations such as overlapped people, different pose, small and high resolution of the people. The performance of the proposed algorithm was evaluated using Precision and Recall quality measure.
Źródło:: Measurement Automation Monitoring; 2015, 61, 6; 191-194
2450-2855
Pojawia się w:: Measurement Automation Monitoring
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Crowd Size Estimation and Detecting Social Distancing using Raspberry Pi and OpenCV
Autorzy:: Milton, Davidson Kamala Dhas
Velraj, Arun Ra
Powiązania:: https://bibliotekanauki.pl/articles/2200720.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Haar features
human detection
distance checking
raspberry pi
opencv
Opis:: In this covid19 pandemic the number of people gathering at public places and festivals are restricted and maintaining social distancing is practiced throughout the world. Managing the crowd is always a challenging task. It requires monitoring technology. In this paper, we develop a device that detects and provide human count and detects people who are not maintaining social distancing. The work depicted above was finished using a Raspberry Pi 3 board with OpenCV-Python. This method can effectively manage crowds.
Źródło:: International Journal of Electronics and Telecommunications; 2023, 69, 1; 19--24
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Two-stage classification approach for human detection in camera video in bulk ports
Autorzy:: Mi, C.
Zhang, Z.
He, X.
Huang, Y.
Mi, W.
Powiązania:: https://bibliotekanauki.pl/articles/259499.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: Human Detection
Histograms of Oriented Gradients
Support Vector Machine
classification
Opis:: With the development of automation in ports, the video surveillance systems with automated human detection begun to be applied in open-air handling operation areas for safety and security. The accuracy of traditional human detection based on the video camera is not high enough to meet the requirements of operation surveillance. One of the key reasons is that Histograms of Oriented Gradients (HOG) features of the human body will show great different between front & back standing (F&B) and side standing (Side) human body. Therefore, the final training for classifier will only gain a few useful specific features which have contribution to classification and are insufficient to support effective classification, while using the HOG features directly extracted by the samples from different human postures. This paper proposes a two-stage classification method to improve the accuracy of human detection. In the first stage, during preprocessing classification, images is mainly divided into possible F&B human body and not F&B human body, and then they were put into the second-stage classification among side human and non-human recognition. The experimental results in Tianjin port show that the two-stage classifier can improve the classification accuracy of human detection obviously.
Źródło:: Polish Maritime Research; 2015, S 1; 163-170
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Research on human silhouette detection methods for a non-cooperative biometric system
Autorzy:: Kacperski, D.
Włodarczyk, M.
Grabowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/397871.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:: biometrics
human silhouette detection
noncooperative detection
Viola-Jones
histogram of gradients
background subtraction
biometria
detekcja sylwetki człowieka
histogram gradientów
odejmowanie tła
Opis:: Together with the development of effective and efficient people identification algorithms, biometric authentication systems become increasingly popular and widespread, leading to a significant growth in the number of institutions interested in implementing and using such systems. Although, several research works focused their efforts on these type of solutions, none of the commonly available systems provide a non-cooperative approach to object identification. For this reason, they are not suitable for use in some specific situations, such as people entering the stadium. Therefore, we decided to go up against these limitations and develop biometric identification system for less constrained scenarios. In this paper, we present an evaluation of different algorithms suitable for human silhouette detection in such environment. We focus on investigating their effectiveness and performance under unconstrained conditions, such as different lighting.
Źródło:: International Journal of Microelectronics and Computer Science; 2015, 6, 1; 10-13
2080-8755
2353-9607
Pojawia się w:: International Journal of Microelectronics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The influence of natural and anthropogenic factors on grain size distribution along the southeastern Baltic spits
Autorzy:: Žilinskas, G.
Jarmalavičius, D.
Pupienis, D.
Powiązania:: https://bibliotekanauki.pl/articles/2059756.pdf
Data publikacji:: 2018
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: longshore sediment transport
human activity
geological framework
lithological anomalies
shift regime detection
Opis:: The influence of natural and anthropogenic factors on the distribution of sand grain size along sandy beaches is assessed, based on study of three spits of the southeastern Baltic Sea: the Curonian, Vistula and the Hel. 330 sand samples were collected from the beach and foredune at 1 km intervals. Our findings show that although the three spits have some characteristics in common, e.g. a predominance of fine- and medium-grained marine sand on their beaches and foredunes, the grain size distribution patterns of the recent sediments along these spits differ significantly. The key factors determining the grain size distribution include the dominant hydrometeorological regime, anthropogenic activity and geological framework. Trends in the mean grain size differentiation along the Vistula and Curonian spits directly correlate with the direction of the longshore sediment transport: as the distance from sources of the longshore sediment transport increases, the size of sand particles, both on the beach and the foredune, decreases. By contrast, on the Hel Spit, this pattern is disturbed in areas of hydrotechnical construction and artificial beach nourishment. Sand differentiation along the beach can also be predetermined by the geological framework, particularly in lithologically anomalous sections, such as the Juodkrantè settlement on the Curonian Spit.
Źródło:: Geological Quarterly; 2018, 62, 2; 375--384
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Optical diagnostic system for visualization subcutaneous blood vessels
Autorzy:: Opilski, Zbigniew
Pustelny, Tadeusz
Pach, M.
Hejczyk, T.
Powiązania:: https://bibliotekanauki.pl/articles/1818253.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:: detection of subcutaneous blood vessels
light transmission through human skin
stereoscopic vision of blood vessels
Opis:: The paper presents a research concerning the issue of visualization of blood vessels in the human body. In the initial phase of the investigations the focus was on understanding the optical properties of human body tissues. Optical transmittance of human skin was measured. Skin transmittance reaches the maximum at around 670–850 nm and 970–1100 nm. The optimal wavelength suitable for work in reflected and transmitted light was chosen. It was based on extracting blood vessels from the image for using them further in a developed system. A unique measuring system with an integrated illuminator and highly sensitive light detectors for medical imaging and stereoscopic observation was created. The high usable value of the developed system was largely gained by the original numerical program for development of measurement results. The elaborated system of blood vessels’ visualization is a mobile device. It was tested for imaging subcutaneous blood vessels. Three-dimensional observation of circulation and microcirculation in subcutaneous breast tissues is possible. Practical tests of the elaborated device for blood vessels’ medical stereoscopic observations were presented. Tests at a wavelength of 850 nm were performed. It is planned to conduct patient tests in the future at the Maria Skłodowska-Curie Institute - Oncology Center (MSCI), the Branch in Gliwice, Poland.
Źródło:: Opto-Electronics Review; 2020, 28, 2; 64--68
1230-3402
Pojawia się w:: Opto-Electronics Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Detection of coliforms in drinking water and its effect on human health - a review
Autorzy:: Pal, P.
Powiązania:: https://bibliotekanauki.pl/articles/11602.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: detection
coliform bacteria
drinking water
human health
Escherichia coli
water contamination
health hazard
public health
Opis:: The coliform group has been used extensively as an indicator of water quality and has historically led to the public health protection concept. Total coliforms are a group of bacteria commonly found in the environment, for example in soil or vegetation, as well as the intestines of mammals, including humans. Total coliform bacteria are not likely to cause illness, but their presence indicates that the water supply may be vulnerable to contamination by more harmful microorganisms. Escherichia coli (E. coli) is the only member of the total coliform group of bacteria that is found only in the intestines of mammals, including humans. The presence of E. coli in water indicates recent fecal contamination and may indicate the possible presence of disease-causing pathogens, such as bacteria, viruses, and parasites. Although most strains of E. coli bacteria are harmless, certain strains, such as E.coli 0157:H7, may cause illness. About 80 % of communicable diseases in the world are waterborne. According to WHO estimate about 80 % of water pollution in developing country, like India is carried by domestic waste. In India 70 % of the water is seriously polluted and 75 % of illness and 80 % of the child mortality is attributed to water pollution. The improper management of water systems may cause serious problems in availability and quality of water. The major pathogenic bacteria responsible for water borne disease are spread by the faeco-oral route, in which water may play an intermediate role. The aim of this review is to examine methods currently in use for the detection of coliforms in drinking water and also to evaluate the possible health hazards associated with drinking water contaminated with coliforms.
Źródło:: International Letters of Natural Sciences; 2014, 12, 2
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Detection of Giardia intestinalis assemblages in formalin fixed stool samples collected from school children in the Ghazni Province, eastern Afghanistan
Autorzy:: Lass, A.
Korzeniewski, K.
Powiązania:: https://bibliotekanauki.pl/articles/6510.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: detection
Giardia intestinalis
child
school child
intestinal parasite
parasitic disease
human disease
prevalence
Ghazni province
Afghanistan
Źródło:: Annals of Parasitology; 2016, 62, Suppl.
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Application of a duplex-PCR for detection of cows' milk in goats' milk
Autorzy:: Kotowicz, M
Adamczyk, E.
Bania, J.
Powiązania:: https://bibliotekanauki.pl/articles/51721.pdf
Data publikacji:: 2007
Wydawca:: Instytut Medycyny Wsi
Tematy:: cow milk
human disease
goat milk
food
allergy
polymerase chain reaction
species identification
milk-derived product
detection
milk
Opis:: A duplex-PCR method, with 2 pairs of primers recognizing sequences of mitochondrial D-loop region, was developed to identify cows’ milk in the milk of goats. The PCR was shown to be specifi c and sensitive, enabling the detection of less than 1% of cows’ milk added to the milk of goats. Simultaneous use of a primer pair for goats’ and cows’ mitochondrial DNA fragment prevented false negative results. The method was applied to track the presence of cow DNA in goat milk available on the Polish market. A total of 54 milk samples from 3 Polish (34) and one foreign producer (20) were examined. In 33 samples, cow DNA was detected, while 21 samples, including all of the 20 samples from foreign producers, produced the goat-specific product only.
Źródło:: Annals of Agricultural and Environmental Medicine; 2007, 14, 2
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Error Detection in the Navigational Watch Based on the Behavior Analysis of Navigators
Autorzy:: Nishizaki, C.
Takemoto, T.
Powiązania:: https://bibliotekanauki.pl/articles/116923.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: Navigators’ Situation Awareness Model
Human Factor
Situation Awareness
safety at sea
Sea Service
Navigational Watch
Error Detection
watchkeeping
Opis:: Poor lookouts, i.e. one of errors in situation awareness, are pointed out as the major cause of collisions of ships, through investigations of collision accidents. In order to evaluate safety measures for preventing collisions caused by poor lookouts, it is necessary to understand background factors, so called “contexts”, of errors in situation awareness regardless of occurrence of collisions. The purpose of this study is to point out the possible significant contexts, using a navigator’s situation awareness model. As a result, we point out that one of the possible significant contexts is a problem on judgment of priority levels of other ships with regard to attention.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 2; 163-168
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Detection of Borrelia burgdorferi sensu lato, Anaplasma phagocytophilum and Babesia microti in Ixodes ricinus collected on selected recreational areas of Krakow- Czestochowa Upland
Autorzy:: Asman, M.
Szilman, E.
Szilman, P.
Jakubas-Zawalska, J.
Solarz, K.
Powiązania:: https://bibliotekanauki.pl/articles/5623.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: detection
Borrelia burgdorferi
Anaplasma phagocytophilum
Babesia microti
Ixodes ricinus
Lyme disease
human disease
granulocytic anaplasmosis
babesiosis
recreational area
Krakow-Czestochowa Upland
Źródło:: Annals of Parasitology; 2016, 62, Suppl.
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Human-social interaction robots to improve shared attention in children with autism
Wykorzystanie interakcji człowiek-robot w celu poprawy rozproszonej uwagi u dzieci z autyzmem
Autorzy:: Ashrafi, Ali
Powiązania:: https://bibliotekanauki.pl/articles/1837811.pdf
Data publikacji:: 2021
Wydawca:: Politechnika Lubelska. Instytut Informatyki
Tematy:: social assistant robots
autism
pupil detection
human-robot interaction
fuzzy decision making
roboty społeczne
autyzm
interakcja człowiek-robot
system rozmyty
podejmowanie decyzji
Opis:: The motivation behind the momentum research is use of robots explicitly human robots which has filled drastically in various domains, including treatment. In this examination, a humanoid robot was used to improve open consideration in children with mental imbalance. One of the troubles of this system is that contamination makes remarkable conditions for the patient that the presence of the guide and some other new thing isn't easily recognized. The subsequent test is to pick appropriate figuring and systems for following the head and understudy of the eye in youthful steers with mental awkwardness. One of the credits of which is obligatory and uncontrolled improvements of the head and eyes to the sides. The third issue is the treatment and investigation strategies. The treatment cycle and the arranged tests should not to reason extravagant instigation in the youth. The aim is to beat the referred to troubles, not-withstanding the high-block progressing understudy following count, without the use of business gear. Fleecy decision tree has been used to join clinical and planning information during therapy, ultimately the possibility of instinctive therapy for the improvement of restoratively withdrawn young people has been introduced.
Źródło:: Journal of Computer Sciences Institute; 2021, 18; 49-54
2544-0764
Pojawia się w:: Journal of Computer Sciences Institute
Dostawca treści:: Biblioteka Nauki