Results 21 to 30 of about 18,574 (304)

Modelling and hardware implementation of quantization levels of digital cameras in DCT based image compression

open access: yesEngineering Science and Technology, an International Journal, 2019
In today’s world of computation, data compression takes vigorous part in most of the real–time and embedded system applications. Some of such end uses are essentially derived for specific task, however their realization are not described and delineated ...
Mahendra M. Dixit, C. Vijaya
doaj   +1 more source

Perbandingan Algoritma Backpropagation Dan Learning Vector Quantization (LVQ) dalam Pengenalan Pola Bangun Ruang Geometri

open access: yesInvotek: Jurnal Inovasi Vokasional dan Teknologi, 2020
Penelitian ini bertujuan untuk memberikan rekomendasi dari hasil perbandingan antara metode jaringan syaraf tiruan menggunakan metode backpropagation dan learning vector quantization (LVQ) dalam melakukan pengenalan pola.
Yeka Hendriyani
doaj   +1 more source

Light-cone quantization of scalar field on time-dependent backgrounds

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
We discuss what is light-cone quantization on a curved spacetime also without a null Killing vector. Then we consider as an example the light-cone quantization of a scalar field on a background with a Killing vector and the connection with the second ...
Andrea Arduino, Igor Pesando
doaj   +1 more source

Adaptive multistage vector quantization [PDF]

open access: yesProceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering', 2003
The authors present a novel multiple-stage vector-quantization method that allows the adaptation of the quantizer to the signal to be coded. This adaptation is computationally very simple and is made with no increase in bit rate. The resulting quantizer provides a robust performance across different speakers and environments. It has been applied to the
Rodríguez Fonollosa, José Adrián   +1 more
openaire   +2 more sources

Approximate Nearest Neighbor Search by Residual Vector Quantization

open access: yesSensors, 2010
A recently proposed product quantization method is efficient for large scale approximate nearest neighbor search, however, its performance on unstructured vectors is limited.
Cheng Wang, Tao Guan, Yongjian Chen
doaj   +1 more source

Media Pembelajaran Learning Vector Quantization Berbasis Multimedia Untuk Memudahkan Pemahaman Mahasiswa Dalam Matakuliah Jaringan Saraf Tiruan

open access: yesJurnal Sarjana Teknik Informatika, 2019
Materi Learning vector quantization pada mata kuliah jaringan saraf tiruan bagi sebagian mahasiswa dirasa sulit untuk dipahami. Materi learning vector quantization dirasa sulit oleh mahasiswa pada soal penyelesaian langkah-langkah menentukan pengkodean ...
Cahyoko Hariya Pamilu, Ardi Pujiyanta
doaj   +1 more source

Vektorių kvantavimo metodų ir daugiamačių skalių junginys daugiamačiams duomenims vizualizuoti

open access: yesInformacijos Mokslai, 2009
Darbe pateikiama lyginamoji dviejų vektorių kvantavimo metodų (saviorganizuojančių neuroninių tinklų ir neuroninių dujų) analizė. Neuronai nugalėtojai, kurie gaunami vektorių kvantavimo metodais, yra vizualizuojami daugiamačių skalių metodu.
Alma Molytė, Olga Kurasova
doaj   +1 more source

Network Vector Quantization [PDF]

open access: yesIEEE Transactions on Information Theory, 2004
We present an algorithm for designing locally optimal vector quantizers for general networks. We discuss the algorithm's implementation and compare the performance of the resulting "network vector quantizers" to traditional vector quantizers (VQs) and to rate-distortion (R-D) bounds where available.
Fleming, Michael   +2 more
openaire   +3 more sources

Image Vector Quantization codec indexes filtering [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2012
Vector Quantisation (VQ) is an efficient coding algorithm that has been widely used in the field of video and image coding, due to its fast decoding efficiency.
Lakhdar Moulay Abdelmounaim   +4 more
doaj   +1 more source

Multiple Watermarking Algorithms for Vector Geographic Data Based on Multiple Quantization Index Modulation

open access: yesApplied Sciences, 2023
Multiple digital watermarking is an important and challenging task in geographic information science and data security. Vector geographic data are a basic data format for digital geographic data storage, and the security protection of these data involves
Yingying Wang   +2 more
doaj   +1 more source

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