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Wyszukujesz frazę "SIFT" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
PCA based modification of SIFT-like methods for object class recognition
Autorzy:
Owczarek, A.
Powiązania:
https://bibliotekanauki.pl/articles/115449.pdf
Data publikacji:
2011
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
object recognition
principle component analysis
SIFT
Opis:
This paper discusses a novel PCA based modification of standard SIFT and PCA-SIFT algorithms for the purpose of object class recognition. New descriptors intended to be simultaneously distinctive enough to describe the difference between features belonging to separate categories and general enough to capture the variations among features from the same class are proposed. The experimental results, gained for a test database, showing the reliability of introduced approach are presented.
Źródło:
Challenges of Modern Technology; 2011, 2, 1; 23-26
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A binary representation for real-valued, local feature descriptors
Autorzy:
Oszust, M.
Powiązania:
https://bibliotekanauki.pl/articles/384335.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
SIFT
SURF
LDAHash
binary tests
image matching
image recognition
Opis:
The usage of real-valued, local descriptors in computer vision applications is ofen constrained by their large memory requirements and long matching time. Typical approaches to the reduction of their vectors map the descriptor space to the Hamming space in which the obtained binary strings can be efficiently stored and compared. In contrary to such techniques, the approach proposed in this paper does not require a data-driven binarisation process, but can be seen as an extension of the floating-point descriptor computation pipeline with a step that allows turning it into a binary descriptor. In this step, binary tests are performed on values determined for pixel blocks from the described image patch. In the paper, the proposed approach is described and applied to two popular real-valued descriptors, SIFT and SURF. The paper also contains a comparison of the approach with state-of-the-art binarisation techniques and popular binary descriptors. The results demonstrate that the proposed representation for real-valued descriptors outperforms other methods on four demanding benchmark image datasets.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2017, 11, 1; 3-9
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of Garbage in the River Based on The YOLO Algorithm
Autorzy:
Suprapto, Bhakti Yudho
Kelvin
Kurniawan, Muhammad Arief
Ardela, Muhammad Kevin
Hikmarika, Hera
Husin, Zainal
Dwijayanti, Suci
Powiązania:
https://bibliotekanauki.pl/articles/2055273.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
control
identification
HSV and sift method
USV
yolo algorithm
Opis:
This paper discusses the identification of garbage using the YOLO algorithm. In the rivers, it is usually difficult to distinguish between garbage and plants, especially when it is done in real-time and at the time of too much light. Therefore, there is a need of an appropriate method. The HSV and SIFT methods were used as preliminary tests. The tests were quite successful even in close condition, however, there were still many problems faced in using this method since it is only based on pixel and shape readings. Meanwhile, YOLO algorithm was able to identify garbage and water hyacinth even though they were closed to each other.
Źródło:
International Journal of Electronics and Telecommunications; 2021, 67, 4; 727--733
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A hybrid statistical approach for texture images classification based on scale invariant features and mixture gamma distribution
Autorzy:
Benlakhdar, Said
Rziza, Mohammed
Thami, Rachid Oulad Haj
Powiązania:
https://bibliotekanauki.pl/articles/29520269.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
statistical image modeling
SIFT
mixture gamma distribution
uniform discrete curvelet transform
classification
Opis:
Image classification refers to an important process in computer vision. The purpose of this paper is to propose a novel approach named GGD-GMM and based on statistical modeling in wavelet domain to describe textured images and rely on number of principles which give its internal coherence and originality. Firstly, we propose a robust algorithm based on the combination of the wavelet transform and Scale Invariant Feature Transform. Secondly, we implement the aforementioned algorithm and fit the result using the finite mixture gamma distribution (GMM). The results, obtained for two benchmark datasets, show that the proposed algorithm has a good relevance as it provides higher classification accuracy compared to some other well known models see (Kohavi, 1995). Moreover, it shows other advantages relied to Noise-resistant and rotation invariant.
Źródło:
Computer Methods in Materials Science; 2020, 20, 3; 95-106
2720-4081
2720-3948
Pojawia się w:
Computer Methods in Materials Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Classification of animals to determine the migration potential at the construction of new infrastructure
Autorzy:
Matuska, S.
Hudec, R.
Benco, M.
Zachariasova, M.
Powiązania:
https://bibliotekanauki.pl/articles/393291.pdf
Data publikacji:
2013
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
SIFT
SURF descriptor
SVM classifier
animal classification
deskryptor SURF
klasyfikator SVM
klasyfikacja zwierząt
Opis:
At the planning and construction of new infrastructures, the information about migration potential of animals in a target area is needed. This information will be used to design of migration corridors for wild animals. To determine the migration potential of animals based on distributed video camera system, new methods for object recognition and classification are developed. In general, an object recognition system consists of three steps, namely, the image feature extraction from the training database, training the classifier and evaluation of query image of object/animal. In this paper, an extraction of local key point by SIFT or SURF descriptors, bags of key points method in combination with SVM classifier and two hybrid key points detection methods are proposed in detail.
Źródło:
Archives of Transport System Telematics; 2013, 6, 4; 26-30
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vision analysis system for autonomous landing of micro drone
Autorzy:
Skoczylas, M.
Powiązania:
https://bibliotekanauki.pl/articles/386669.pdf
Data publikacji:
2014
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
unmanned aerial vehicle
micro drone
image analysis
CCD camera
keypoints descriptors
SIFT
SURF
BRISK
object tracking
CAMSHIFT
bezzałogowy obiekt latający
dron
analiza obrazów
śledzenie obiektu
Opis:
This article describes a concept of an autonomous landing system of UAV (Unmanned Aerial Vehicle). This type of device is equipped with the functionality of FPV observation (First Person View) and radio broadcasting of video or image data. The problem is performance of a system of autonomous drone landing in an area with dimensions of 1m × 1m, based on CCD camera coupled with an image transmission system connected to a base station. Captured images are scanned and landing marker is detected. For this purpose, image features detectors (such as SIFT, SURF or BRISK) are utilized to create a database of keypoints of the landing marker and in a new image keypoints are found using the same feature detector. In this paper results of a framework that allows detection of definedmarker for the purpose of drone landing field positioning will be presented.
Źródło:
Acta Mechanica et Automatica; 2014, 8, 4; 199-203
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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