Results 1 to 10 of about 38,586 (315)
Fast DCT-I, DCT-III, and DCT-IV via Moments [PDF]
EURASIP Journal on Advances in Signal Processing, 2005 Summary: This paper presents a novel approach to compute DCT-I, DCT-III, and DCT-IV. By using a modular mapping and truncating, DCTs are approximated by linear sums of discrete moments computed fast only through additions. This enables us to use computational techniques developed for computing moments to compute DCTs efficiently. We demonstrate this by
G. Y. Wang, Y. Z. Liu, J. G. Liu
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Secured Medical Image Hashing Based on Frequency Domain with Chaotic Map [PDF]
Engineering and Technology Journal, 2021 Recently, online-medicine got increased global interest, particularly during COVID19 pandemic. Data protection is important in the medical field since when promoting telemedicine applications, it is necessary to protect the patient data and personal ...
Amira Jabbar +2 more
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A Novel Hybrid Watermarking scheme with Image authentication based on frequency domain, 2- Level SVD using chaotic map [PDF]
EAI Endorsed Transactions on Energy Web, 2021 INTRODUCTION: In order to protect the owner’s visual multimedia data, various watermarking methods have introducedin the last few years. In image watermarking techniques, a secret watermark image inserted into another image.OBJECTIVES: The main aim of ...
Shahzad Alam, Tanvir Ahmad, M. Doja
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Indagatio Didactica, 2023 Este estudo foca-se na utilização de pequenas histórias com História da Matemática por futuros professores do 1.º Ciclo do Ensino Básico (1.º CEB) e do modo como estes propõem incluí-las em sala de aula.
João Eiras de Matos +2 more
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A Novel Content-based Image Retrieval System using Fusing Color and Texture Features [PDF]
Journal of Artificial Intelligence and Data Mining, 2022 Content based image retrieval (CBIR) systems compare a query image with images in a dataset to find similar images to a query image. In this paper a novel and efficient CBIR system is proposed using color and texture features.
S. Asadi Amiri +2 more
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ORFEO, THE PLEIADES ACCOMPANIMENT PROGRAM AND ITS USERS THEMATIC COMMISSIONING [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 ORFEO, the PLEIADES Accompaniment Program, was set up by CNES, the French Space Agency, to prepare, accompany and promote the use and the exploitation of the images acquired by this Very High Resolution optical sensor. It was initiated in 2004 and will
C. Tinel +4 more
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The Use of Two Transform Methods in Fingerprints Recognition [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2012 Finger prints are the oldest and most widely used form of biometric identification. Despite the widespread use of fingerprints, there is little statistical theory on the uniqueness of fingerprint minutiae.
Baraa Tareq Hammad +3 more
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Hematology, Transfusion and Cell Therapy, 2021 Resumo: Levantamento do quantitativo de hemocomponentes transfundidos no Pós-operatório de pacientes submetidos à cirurgia de grande porte e que se encontram alocados na Unidade de Terapia Intensiva de um Hospital Filantrópico de Brasília.
DCT Leite, LEB Oliveira, MRM Soares
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A Coding-Based Steganography Using Multiple Frequency Domains [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2009 :In this paper, a new technique for hiding text in a bitmap images will be present. The technique based on using an index of the dictionary representing the characters of the secret messages instead of the characters themselves.
Omed Salim Khalind +2 more
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ViSTORY: Effective Video Storyboard Generation with Visual Keyframes using Discrete Cosine Transform
International Journal of Technology, 2023 Nowadays, multimedia content utility is increasing rapidly. Multimedia search engines like Google, Yahoo, Bing, etc., are available just a click away to all users. There are around 500-600 hours of video uploads per unit of time to the Internet.
Ashvini Tonge, Sudeep Thepade
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