Accedi

Bibliografie tematiche / Image coding standard / Articoli di riviste

Segui questo link per vedere altri tipi di pubblicazioni sul tema: Image coding standard.

Articoli di riviste sul tema "Image coding standard"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 2 febbraio 2022

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Vedi i top-50 articoli di riviste per l'attività di ricerca sul tema "Image coding standard".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Vedi gli articoli di riviste di molte aree scientifiche e compila una bibliografia corretta.

1

Dufaux, Frederic, Gary J. Sullivan, and Touradj Ebrahimi. "The JPEG XR image coding standard [Standards in a Nutshell]." IEEE Signal Processing Magazine 26, no. 6 (November 2009): 195–204. http://dx.doi.org/10.1109/msp.2009.934187.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

2

Li, Ren Chong, Yi Long You, and Feng Xiang You. "Research of Image Processing Based on Lifting Wavelet Transform." Applied Mechanics and Materials 263-266 (December 2012): 2502–9. http://dx.doi.org/10.4028/www.scientific.net/amm.263-266.2502.

Testo completo

Abstract (sommario):

This paper Study problems which based on lifting wavelet transform image processing. Coding and decoding a complete digital image by using W97-2 wavelet basis wavelet transform, combined with the embedded zerotree wavelet coding and binary arithmetic coding, and complete a lossless compression combined with the international standard test images. Experimental results show that graphics, image processing will come into a higher level because of wavelet analysis combined with image processing.

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Götting, Detlef, Achim Ibenthal, and Rolf-Rainer Grigat. "Fractal Image Coding and Magnification Using Invariant Features." Fractals 05, supp01 (April 1997): 65–74. http://dx.doi.org/10.1142/s0218348x97000644.

Testo completo

Abstract (sommario):

Fractal image coding has significant potential for the compression of still and moving images and also for scaling up images. The objective of our investigations was twofold. First, compression ratios of factor 60 and more for still images have been achieved, yielding a better quality of the decoded picture material than standard methods like JPEG. Second, image enlargement up to factors of 16 per dimension has been realized by means of fractal zoom, leading to natural and sharp representation of the scaled image content. Quality improvements were achieved due to the introduction of an extende

Gli stili APA, Harvard, Vancouver, ISO e altri

4

Tanaka, Midori, Tomoyuki Takanashi, and Takahiko Horiuchi. "Glossiness-aware Image Coding in JPEG Framework." Journal of Imaging Science and Technology 64, no. 5 (September 1, 2020): 50409–1. http://dx.doi.org/10.2352/j.imagingsci.technol.2020.64.5.050409.

Testo completo

Abstract (sommario):

Abstract In images, the representation of glossiness, translucency, and roughness of material objects (Shitsukan) is essential for realistic image reproduction. To date, image coding has been developed considering various indices of the quality of the encoded image, for example, the peak signal-to-noise ratio. Consequently, image coding methods that preserve subjective impressions of qualities such as Shitsukan have not been studied. In this study, the authors focus on the property of glossiness and propose a method of glossiness-aware image coding. Their purpose is to develop an encoding algo

Gli stili APA, Harvard, Vancouver, ISO e altri

5

Man, Hong, Alen Docef, and Faouzi Kossentini. "Performance Analysis of the JPEG 2000 Image Coding Standard." Multimedia Tools and Applications 26, no. 1 (May 2005): 27–57. http://dx.doi.org/10.1007/s11042-005-6848-5.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

6

Tsang, Sik-Ho, Yui-Lam Chan, and Wei Kuang. "Standard compliant light field lenslet image coding model using enhanced screen content coding framework." Journal of Electronic Imaging 28, no. 05 (October 23, 2019): 1. http://dx.doi.org/10.1117/1.jei.28.5.053027.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

7

Khaitu, Shree Ram, and Sanjeeb Prasad Panday. "Fractal Image Compression Using Canonical Huffman Coding." Journal of the Institute of Engineering 15, no. 1 (February 16, 2020): 91–105. http://dx.doi.org/10.3126/jie.v15i1.27718.

Testo completo

Abstract (sommario):

Image Compression techniques have become a very important subject with the rapid growth of multimedia application. The main motivations behind the image compression are for the efficient and lossless transmission as well as for storage of digital data. Image Compression techniques are of two types; Lossless and Lossy compression techniques. Lossy compression techniques are applied for the natural images as minor loss of the data are acceptable. Entropy encoding is the lossless compression scheme that is independent with particular features of the media as it has its own unique codes and symbol

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Noll, Peter, and Davis Pan. "ISO/MPEG Audio Coding." International Journal of High Speed Electronics and Systems 08, no. 01 (March 1997): 69–118. http://dx.doi.org/10.1142/s0129156497000044.

Testo completo

Abstract (sommario):

The Moving Pictures Expert Group within the International Organization of Standardization (ISO/MPEG) has developed, and is presently developing, a series of audiovisual standards. Its audio coding standard MPEG Phase 1 is the first international standard in the field of high quality digital audio compression and has been applied in many areas, both for consumer and professional audio. Typical application areas for digital audio are in the fields of audio production, program distribution and exchange, digital sound broadcasting, digital storage, and various multimedia applications. This paper w

Gli stili APA, Harvard, Vancouver, ISO e altri

9

ZHANG, YAN, and HAI-MING GU. "CONTOUR BASED MULTI-ROI MULTI-QUALITY ROI CODING FOR STILL IMAGE." International Journal of Pattern Recognition and Artificial Intelligence 25, no. 01 (February 2011): 135–45. http://dx.doi.org/10.1142/s0218001411008488.

Testo completo

Abstract (sommario):

Region-of-interest (ROI) image coding is one of the new features included in the JPEG2000 image coding standard. Two methods are defined in the standard: the Maxshift method and the generic scaling based method. In this paper, a new region-of-interest coding method called Contour-based Multi-ROI Multi-quality Image Coding (CMM) is proposed. Unlike other existing methods, the CMM method takes the contour and texture of the whole image as a special ROI, which makes the visually most important parts (in both ROI and Background) to be coded first. Experimental results indicate that the proposed me

Gli stili APA, Harvard, Vancouver, ISO e altri

10

Hussain, Ikram, Oh-Jin Kwon, and Seungcheol Choi. "Evaluating the Coding Performance of 360° Image Projection Formats Using Objective Quality Metrics." Symmetry 13, no. 1 (January 5, 2021): 80. http://dx.doi.org/10.3390/sym13010080.

Testo completo

Abstract (sommario):

Recently, 360° content has emerged as a new method for offering real-life interaction. Ultra-high resolution 360° content is mapped to the two-dimensional plane to adjust to the input of existing generic coding standards for transmission. Many formats have been proposed, and tremendous work is being done to investigate 360° videos in the Joint Video Exploration Team using projection-based coding. However, the standardization activities for quality assessment of 360° images are limited. In this study, we evaluate the coding performance of various projection formats, including recently-proposed

Gli stili APA, Harvard, Vancouver, ISO e altri

11

Tian, Hua, Ming Jun Li, and Huan Huan Liu. "Research and Exploration on Static Image Compression Technology Based on JPEG2000." Applied Mechanics and Materials 644-650 (September 2014): 4182–86. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.4182.

Testo completo

Abstract (sommario):

This article introduces GPU-accelerated image processing parallel computing technology into standard core coding system of JPEG2000 static image compression and accelerates and designs the image compression process using CUDA acceleration principle. It also establishes the algorithm of image pixel array layered and reconstruction coding and realizes the coding of this algorithm using VC software. In order to verify the effectiveness and universal applicability of the algorithm and procedures, this paper compresses four images of different sizes and pixels in the static form of the JPEG2000. Th

Gli stili APA, Harvard, Vancouver, ISO e altri

12

PRASAD, MUNAGA V. N. K., and K. K. SHUKLA. "TREE TRIANGULAR CODING IMAGE COMPRESSION ALGORITHMS." International Journal of Image and Graphics 01, no. 04 (October 2001): 591–603. http://dx.doi.org/10.1142/s0219467801000414.

Testo completo

Abstract (sommario):

This paper presents new algorithms for image compression that are an improvement on the recently published Binary Tree Triangular Coding (BTTC). These algorithms are based on recursive decomposition of the image domain into triangles where the new triangle vertex is located at the point of maximum prediction error and does not require the constraints of right-angled isosceles triangle and square image as in previous algorithm. These algorithms execute in O(n log n) for encoding and θ(n) for decoding, where n is the number of image pixels. Simulation results show that the new algorithms have a

Gli stili APA, Harvard, Vancouver, ISO e altri

13

ZHANG, Ting, Huihui BAI, Mengmeng ZHANG, and Yao ZHAO. "Standard-Compliant Multiple Description Image Coding Based on Convolutional Neural Networks." IEICE Transactions on Information and Systems E101.D, no. 10 (October 1, 2018): 2543–46. http://dx.doi.org/10.1587/transinf.2018edl8028.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

14

YUEN, CHING-HUNG, and KWOK-WO WONG. "CRYPTANALYSIS ON SECURE FRACTAL IMAGE CODING BASED ON FRACTAL PARAMETER ENCRYPTION." Fractals 20, no. 01 (March 2012): 41–51. http://dx.doi.org/10.1142/s0218348x12500041.

Testo completo

Abstract (sommario):

The vulnerabilities of the selective encryption scheme for fractal image coding proposed by Lian et al.1 are identified. By comparing multiple cipher-images of the same plain-image encrypted with different keys, the positions of unencrypted parameters in each encoded block are located. This allows the adversary to recover the encrypted depth of the quadtree by observing the length of each matched domain block. With this depth information and the unencrypted parameters, the adversary is able to reconstruct an intelligent image. Experimental results show that some standard test images can be suc

Gli stili APA, Harvard, Vancouver, ISO e altri

15

Salih, Yusra Ahmed, Aree Ali Mohammed, and Loay Edwar George. "Improved Image Compression Scheme Using Hybrid Encoding Algorithm." Kurdistan Journal of Applied Research 4, no. 2 (October 31, 2019): 90–101. http://dx.doi.org/10.24017/science.2019.2.9.

Testo completo

Abstract (sommario):

A color image compression is the most challenging task in the field of multimedia. During last decades several techniques are developed for improving the quality, coding time and compression ratio using different coding strategies. In this work, an effective compression method for hybrid images is proposed based on the discrete wavelet transformation and hybrid encoding algorithm (Huffman and SPIHT). This paper's primary participation is to take advantage of the hybrid encoding technique to maintain the quality of the reconstructed image and the reduction of time complexity. The sample test im

Gli stili APA, Harvard, Vancouver, ISO e altri

16

Pinheiro, Antonio. "JPEG column: 82nd JPEG meeting in Lisbon, Portugal." ACM SIGMultimedia Records 11, no. 1 (March 2019): 1. http://dx.doi.org/10.1145/3458462.3458468.

Testo completo

Abstract (sommario):

JPEG has been the most common representation format of digital images for more than 25 years. Other image representation formats have been standardised by JPEG committee like JPEG 2000 or more recently JPEG XS. Furthermore, JPEG has been extended with new functionalities like HDR or alpha plane coding with the JPEG XT standard, and more recently with a reference software. Another solutions have been also proposed by different players with limited success. The JPEG committee decided it is the time to create a new working item, named JPEG XL, that aims to develop an image coding standard with in

Gli stili APA, Harvard, Vancouver, ISO e altri

17

Coelho, Diego F. G., Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake, Paulo Martinez, Thiago L. T. Silveira, Raíza S. Oliveira, and Vassil S. Dimitrov. "Low-Complexity Loeffler DCT Approximations for Image and Video Coding." Journal of Low Power Electronics and Applications 8, no. 4 (November 22, 2018): 46. http://dx.doi.org/10.3390/jlpea8040046.

Testo completo

Abstract (sommario):

This paper introduced a matrix parametrization method based on the Loeffler discrete cosine transform (DCT) algorithm. As a result, a new class of 8-point DCT approximations was proposed, capable of unifying the mathematical formalism of several 8-point DCT approximations archived in the literature. Pareto-efficient DCT approximations are obtained through multicriteria optimization, where computational complexity, proximity, and coding performance are considered. Efficient approximations and their scaled 16- and 32-point versions are embedded into image and video encoders, including a JPEG-lik

Gli stili APA, Harvard, Vancouver, ISO e altri

18

Cho, Sang-Gyu, Zoran Bojkovic, Dragorad Milovanovic, Jungsik Lee, and Jae-Jeong Hwang. "Image quality evaluation: JPEG 2000 versus intra-only H.264/AVC High Profile." Facta universitatis - series: Electronics and Energetics 20, no. 1 (2007): 71–83. http://dx.doi.org/10.2298/fuee0701071c.

Testo completo

Abstract (sommario):

The objective of this work is to provide image quality evaluation for intra-only H.264/AVC High Profile (HP) standard versus JPEG2000 standard. Here, we review the structure of the two standards and the coding algorithms in the context of subjective and objective assessments. Simulations were performed on a test set of monochrome and color image. As a result of simulations, we observed that the subjective and objective image quality of H.264/AVC is superior to JPEG2000, except the blocking artifact which is inherent, since it consists of block transform rather than whole image transform. Thus,

Gli stili APA, Harvard, Vancouver, ISO e altri

19

Sowmithri, K. "An Iterative Lifting Scheme on DCT Coefficients for Image Coding." International Journal of Students' Research in Technology & Management 3, no. 4 (September 27, 2015): 317–19. http://dx.doi.org/10.18510/ijsrtm.2015.341.

Testo completo

Abstract (sommario):

Image coding is considered to be more effective, as it reduces number of bits required to store and/or to transmit image data. Transform based image coders play a significant role as they decorrelate the spatial low level information. It is found utilization in International compression standards such as JPEG, JPEG 2000, MPEG and H264. The choice of transform is an important issue in all these transforms coding schemes. Most of the literature suggests either Discrete Cosine Transform (DCT) or Discrete Wavelet Transform (DWT). In this proposed work, the energy preservation of DCT coefficients i

Gli stili APA, Harvard, Vancouver, ISO e altri

20

SREELEKHA, G., and P. S. SATHIDEVI. "A WAVELET-BASED PERCEPTUAL IMAGE CODER INCORPORATING A NEW MODEL FOR COMPRESSION OF COLOR IMAGES." International Journal of Wavelets, Multiresolution and Information Processing 07, no. 05 (September 2009): 675–92. http://dx.doi.org/10.1142/s0219691309003197.

Testo completo

Abstract (sommario):

A wavelet-based perceptual image coder for the compression of color images is proposed here in which the coding structure is coupled with Human Visual System models to produce high quality images. The major contribution is the development of a new model for the compression of the color components based on psychovisual experiments, which quantifies the optimum amount of compression that can be applied to the color components for a given rate. The model is developed for YCbCr color space and the perceptually uniform CIE Lab color space. A complete coding structure for the compression of color im

Gli stili APA, Harvard, Vancouver, ISO e altri

21

Farzamnia, Ali, Sharifah Syed-Yusof, Norsheila Fisal, and Syed Abu-Bakar. "Investigation of Error Concealment Using Different Transform Codings and Multiple Description Codings." Journal of Electrical Engineering 63, no. 3 (May 1, 2012): 171–79. http://dx.doi.org/10.2478/v10187-012-0025-7.

Testo completo

Abstract (sommario):

Investigation of Error Concealment Using Different Transform Codings and Multiple Description CodingsThere has been increasing usage of Multiple Description Coding (MDC) for error concealment in non-ideal channels. A lot of ideas have been masterminded for MDC method up to now. This paper described the attempts to conceal the error and reconstruct the lost descriptions caused by combining MDC and lapped orthogonal transform (LOT). In this work LOT and other transforms codings (DCT and wavelet) are used to decorrelate the image pixels in the transform domain. LOT has better performance at low b

Gli stili APA, Harvard, Vancouver, ISO e altri

22

Cho, Seunghyun, Dong-Wook Kim, and Seung-Won Jung. "Quality enhancement of VVC intra-frame coding for multimedia services over the Internet." International Journal of Distributed Sensor Networks 16, no. 5 (May 2020): 155014772091764. http://dx.doi.org/10.1177/1550147720917647.

Testo completo

Abstract (sommario):

In this article, versatile video coding, the next-generation video coding standard, is combined with a deep convolutional neural network to achieve state-of-the-art image compression efficiency. The proposed hierarchical grouped residual dense network exhaustively exploits hierarchical features in each architectural level to maximize the image quality enhancement capability. The basic building block employed for hierarchical grouped residual dense network is residual dense block which exploits hierarchical features from internal convolutional layers. Residual dense blocks are then combined int

Gli stili APA, Harvard, Vancouver, ISO e altri

23

Rahmat, Romi Fadillah, T. S. M. Andreas, Fahmi Fahmi, Muhammad Fermi Pasha, Mohammed Yahya Alzahrani, and Rahmat Budiarto. "Analysis of DICOM Image Compression Alternative Using Huffman Coding." Journal of Healthcare Engineering 2019 (June 17, 2019): 1–11. http://dx.doi.org/10.1155/2019/5810540.

Testo completo

Abstract (sommario):

Compression, in general, aims to reduce file size, with or without decreasing data quality of the original file. Digital Imaging and Communication in Medicine (DICOM) is a medical imaging file standard used to store multiple information such as patient data, imaging procedures, and the image itself. With the rising usage of medical imaging in clinical diagnosis, there is a need for a fast and secure method to share large number of medical images between healthcare practitioners, and compression has always been an option. This work analyses the Huffman coding compression method, one of the loss

Gli stili APA, Harvard, Vancouver, ISO e altri

24

KITAURA, Y., M. MUNEYASU, and K. NAKANISHI. "A New Progressive Image Quality Control Method for ROI Coding in JPEG2000 Standard." IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E91-A, no. 4 (April 1, 2008): 998–1005. http://dx.doi.org/10.1093/ietfec/e91-a.4.998.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

25

Descampe, Antonin, Thomas Richter, Touradj Ebrahimi, Siegfried Foessel, Joachim Keinert, Tim Bruylants, Pascal Pellegrin, Charles Buysschaert, and Gael Rouvroy. "JPEG XS—A New Standard for Visually Lossless Low-Latency Lightweight Image Coding." Proceedings of the IEEE 109, no. 9 (September 2021): 1559–77. http://dx.doi.org/10.1109/jproc.2021.3080916.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

26

Zhang, Lu. "The Design of Static Image Compression System." Advanced Materials Research 1042 (October 2014): 150–53. http://dx.doi.org/10.4028/www.scientific.net/amr.1042.150.

Testo completo

Abstract (sommario):

In this paper, a static image compression system based on DSP is introduced. The compression standard of this system is JPEG2000 that is the new image compression standard by ISO. First, the basic algorithm and key technologic of JPEG2000 are explained. Then, the realization method of the static image compression system based on JPEG2000 image coding is analyzed. Finally, the hardware of this system which is based on DSP is described. And by the verification of the system, very good static image compression effect can be get from this system.

Gli stili APA, Harvard, Vancouver, ISO e altri

27

Liu, Hai Bo, and Xiao Sheng Huang. "An Improved Error Concealment Technique Based on Multi-View Video Coding." Applied Mechanics and Materials 599-601 (August 2014): 1383–86. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.1383.

Testo completo

Abstract (sommario):

In this paper, we propose a improved error concealment technique based on multi-view video coding to recover damaged video images. At first,It uses BMA(Boundary Matching Algorithm) method to recover the lost or erroneously received motion vector or disparity vector,then combining inter-view correlation, temporal correlation and spatial correlation to recover the lost blocks. The JM12.0 model of H.264 standard is used to evaluate the algorithm. And the experimental results show that our algorithm achieved a better image reconstruction.

Gli stili APA, Harvard, Vancouver, ISO e altri

28

Zhang, Xi, and Noriaki Fukuda. "Lossy to lossless image coding based on wavelets using a complex allpass filter." International Journal of Wavelets, Multiresolution and Information Processing 12, no. 04 (July 2014): 1460002. http://dx.doi.org/10.1142/s0219691314600029.

Testo completo

Abstract (sommario):

Wavelet-based image coding has been adopted in the international standard JPEG 2000 for its efficiency. It is well-known that the orthogonality and symmetry of wavelets are two important properties for many applications of signal processing and image processing. Both can be simultaneously realized by the wavelet filter banks composed of a complex allpass filter, thus, it is expected to get a better coding performance than the conventional biorthogonal wavelets. This paper proposes an effective implementation of orthonormal symmetric wavelet filter banks composed of a complex allpass filter for

Gli stili APA, Harvard, Vancouver, ISO e altri

29

YANG, GUOAN, and NANNING ZHENG. "AN OPTIMIZATION ALGORITHM FOR BIORTHOGONAL WAVELET FILTER BANKS DESIGN." International Journal of Wavelets, Multiresolution and Information Processing 06, no. 01 (January 2008): 51–63. http://dx.doi.org/10.1142/s0219691308002215.

Testo completo

Abstract (sommario):

A new approach for designing the Biorthogonal Wavelet Filter Bank (BWFB) for the purpose of image compression is presented in this paper. The approach is broken into two steps. First, an optimal filter bank is designed in the theoretical sense, based on Vaidyanathan's coding gain criterion in the SubBand Coding (SBC) system. Then, the above filter bank is optimized based on the criterion of Peak Signal-to-Noise Ratio (PSNR) in the JPEG2000 image compression system, resulting in a BWFB in practical application sense. With the approach, a series of BWFBs for a specific class of applications rela

Gli stili APA, Harvard, Vancouver, ISO e altri

30

Song, Hong Mei, Hai Wei Mu, and Dong Yan Zhao. "Study on Nearly Lossless Compression with Progressive Decoding." Advanced Materials Research 926-930 (May 2014): 1751–54. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.1751.

Testo completo

Abstract (sommario):

A progressive transmission and decoding nearly lossless compression algorithm is proposed. The image data are grouped according to different frequencies based on DCT transform, then it uses the JPEG-LS core algorithmtexture prediction and Golomb coding on each group of data, in order to achieve progressive image transmission and decoding. Experimentation on the standard test images with this algorithm and comparing with JPEG-LS shows that the compression ratio of this algorithm is very similar to the compression ratio of JPEG-LS, and this algorithm loses a little image information but it has t

Gli stili APA, Harvard, Vancouver, ISO e altri

31

Blanes, Ian, Aaron Kiely, Miguel Hernández-Cabronero, and Joan Serra-Sagristà. "Performance Impact of Parameter Tuning on the CCSDS-123.0-B-2 Low-Complexity Lossless and Near-Lossless Multispectral and Hyperspectral Image Compression Standard." Remote Sensing 11, no. 11 (June 11, 2019): 1390. http://dx.doi.org/10.3390/rs11111390.

Testo completo

Abstract (sommario):

This article studies the performance impact related to different parameter choices for the new CCSDS-123.0-B-2 Low-Complexity Lossless and Near-Lossless Multispectral and Hyperspectral Image Compression standard. This standard supersedes CCSDS-123.0-B-1 and extends it by incorporating a new near-lossless compression capability, as well as other new features. This article studies the coding performance impact of different choices for the principal parameters of the new extensions, in addition to reviewing related parameter choices for existing features. Experimental results include data from 16

Gli stili APA, Harvard, Vancouver, ISO e altri

32

Murakami, Yuri. "Lossless and lossy coding for multispectral image based on sRGB standard and residual components." Journal of Electronic Imaging 20, no. 2 (April 1, 2011): 023003. http://dx.doi.org/10.1117/1.3574104.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

33

Narayanan, M. Rajaram, and S. Gowri. "Intelligent Vision Based Technique Using ANN for Surface Finish Assessment of Machined Components." Key Engineering Materials 364-366 (December 2007): 1251–56. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.1251.

Testo completo

Abstract (sommario):

In this work, an FPGA hardware based image processing algorithm for preprocessing the images and enhance the image quality has been developed. The captured images were processed using a FPGA chip to remove the noise and then using a neural network, the surface roughness of machined parts produced by the grinding process was estimated. To ensure the effectiveness of this approach the roughness values quantified using these image vision techniques were then compared with widely accepted standard mechanical stylus instrument values. Quantification of digital images for surface roughness was perfo

Gli stili APA, Harvard, Vancouver, ISO e altri

34

Singh, Kulwinder, Ming Ma, Dong Won Park, and Syungog An. "Image Indexing Based On Mpeg-7 Scalable Color Descriptor." Key Engineering Materials 277-279 (January 2005): 375–82. http://dx.doi.org/10.4028/www.scientific.net/kem.277-279.375.

Testo completo

Abstract (sommario):

The MPEG-7 standard defines a set of descriptors that extract low-level features such as color, texture and object shape from an image and generate metadata that represents the extracted information. In this paper we propose a new image retrieval technique for image indexing based on the MPEG-7 scalable color descriptor. We use some specifications of the scalable color descriptor (SCD) for the implementation of the color histograms. The MPEG-7 standard defines 1 l norm − based matching in the SCD. But in our approach, for distance measurement, we achieve a better result by using cosine similar

Gli stili APA, Harvard, Vancouver, ISO e altri

35

Kim, Seonjae, Dongsan Jun, Byung-Gyu Kim, Seungkwon Beack, Misuk Lee, and Taejin Lee. "Two-Dimensional Audio Compression Method Using Video Coding Schemes." Electronics 10, no. 9 (May 6, 2021): 1094. http://dx.doi.org/10.3390/electronics10091094.

Testo completo

Abstract (sommario):

As video compression is one of the core technologies that enables seamless media streaming within the available network bandwidth, it is crucial to employ media codecs to support powerful coding performance and higher visual quality. Versatile Video Coding (VVC) is the latest video coding standard developed by the Joint Video Experts Team (JVET) that can compress original data hundreds of times in the image or video; the latest audio coding standard, Unified Speech and Audio Coding (USAC), achieves a compression rate of about 20 times for audio or speech data. In this paper, we propose a pre-p

Gli stili APA, Harvard, Vancouver, ISO e altri

36

Journal, Baghdad Science. "Image Compression Using Tap 9/7 Wavelet Transform and Quadtree Coding Scheme." Baghdad Science Journal 8, no. 2 (June 12, 2011): 676–83. http://dx.doi.org/10.21123/bsj.8.2.676-683.

Testo completo

Abstract (sommario):

This paper is concerned with the design and implementation of an image compression method based on biorthogonal tap-9/7 discrete wavelet transform (DWT) and quadtree coding method. As a first step the color correlation is handled using YUV color representation instead of RGB. Then, the chromatic sub-bands are downsampled, and the data of each color band is transformed using wavelet transform. The produced wavelet sub-bands are quantized using hierarchal scalar quantization method. The detail quantized coefficient is coded using quadtree coding followed by Lempel-Ziv-Welch (LZW) encoding. While

Gli stili APA, Harvard, Vancouver, ISO e altri

37

RAITTINEN, HARRI, and KIMMO KASKI. "CRITICAL REVIEW OF FRACTAL IMAGE COMPRESSION." International Journal of Modern Physics C 06, no. 01 (February 1995): 47–66. http://dx.doi.org/10.1142/s0129183195000058.

Testo completo

Abstract (sommario):

In this paper, fractal compression methods are reviewed. Three new methods are developed and their results are compared with the results obtained using four previously published fractal compression methods. Furthermore, we have compared the results of these methods with the standard JPEG method. For comparison, we have used an extensive set of image quality measures. According to these tests, fractal methods do not yield significantly better compression results when compared with conventional methods. This is especially the case when high coding accuracy (small compression ratio) is desired.

Gli stili APA, Harvard, Vancouver, ISO e altri

38

NADARAJAH, SARALEES. "LAPLACIAN DCT COEFFICIENT MODELS." International Journal of Wavelets, Multiresolution and Information Processing 06, no. 04 (July 2008): 553–73. http://dx.doi.org/10.1142/s0219691308002483.

Testo completo

Abstract (sommario):

It is well known that the distribution of the discrete cosine transform (DCT) coefficients of most natural images follow a Laplace distribution. In this note, a collection of formulas is derived for the distribution of the actual DCT coefficient. The corresponding estimation procedures are derived by the method of moments and the method of maximum likelihood. Finally, the superior performance of the derived distributions over the standard Laplace model is illustrated. It is expected that this work could serve as a useful reference and lead to improved modeling with respect to image analysis an

Gli stili APA, Harvard, Vancouver, ISO e altri

39

Christopoulos, C., J. Askelof, and M. Larsson. "Efficient methods for encoding regions of interest in the upcoming JPEG2000 still image coding standard." IEEE Signal Processing Letters 7, no. 9 (September 2000): 247–49. http://dx.doi.org/10.1109/97.863146.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

40

Santos, Lucana, Sebastián Lopez, Gustavo M. Callico, José F. Lopez, and Roberto Sarmiento. "Performance Evaluation of the H.264/AVC Video Coding Standard for Lossy Hyperspectral Image Compression." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 5, no. 2 (April 2012): 451–61. http://dx.doi.org/10.1109/jstars.2011.2173906.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

41

Chen, Xiao, and Xiaoqing Xu. "A Fast and Efficient Adaptive Threshold Rate Control Scheme for Remote Sensing Images." Scientific World Journal 2012 (2012): 1–6. http://dx.doi.org/10.1100/2012/691413.

Testo completo

Abstract (sommario):

The JPEG2000 image compression standard is ideal for processing remote sensing images. However, its algorithm is complex and it requires large amounts of memory, making it difficult to adapt to the limited transmission and storage resources necessary for remote sensing images. In the present study, an improved rate control algorithm for remote sensing images is proposed. The required coded blocks are sorted downward according to their numbers of bit planes prior to entropy coding. An adaptive threshold computed from the combination of the minimum number of bit planes, along with the minimum ra

Gli stili APA, Harvard, Vancouver, ISO e altri

42

Poornima, G. R., and S. C. Prasanna Kumar. "Efficient H.264 Decoder Architecture using External Memory and Pipelining." Indonesian Journal of Electrical Engineering and Computer Science 12, no. 3 (December 1, 2018): 995. http://dx.doi.org/10.11591/ijeecs.v12.i3.pp995-1002.

Testo completo

Abstract (sommario):

<p>A H.264 standard is one of the most popular coding standard with significant improvement in video broadcasting and streaming application. However it’s significant in compression but needs huge calculation and complex algorithm for providing better image quality and compression rate. In H.264 coding technique, designing of decoder is a key factor for efficient coding. In this paper we are designing a decoder using a complex input. We ensured several improvement like looping arrangement, buffer upgradation, buffer supplement, memory reusability and pipelining architecture. We have modif

Gli stili APA, Harvard, Vancouver, ISO e altri

43

PhiCong, Huy, Stuart Perry, and Xiem HoangVan. "Adaptive Content Frame Skipping for Wyner–Ziv-Based Light Field Image Compression." Electronics 9, no. 11 (October 29, 2020): 1798. http://dx.doi.org/10.3390/electronics9111798.

Testo completo

Abstract (sommario):

Light field (LF) imaging introduces attractive possibilities for digital imaging, such as digital focusing, post-capture changing of the focal plane or view point, and scene depth estimation, by capturing both spatial and angular information of incident light rays. However, LF image compression is still a great challenge, not only due to light field imagery requiring a large amount of storage space and a large transmission bandwidth, but also due to the complexity requirements of various applications. In this paper, we propose a novel LF adaptive content frame skipping compression solution by

Gli stili APA, Harvard, Vancouver, ISO e altri

44

Anaraki, Marjan Sedighi, Fangyan Dong, Hajime Nobuhara, and Kaoru Hirota. "Dyadic Curvelet Transform (DClet) for Image Noise Reduction." Journal of Advanced Computational Intelligence and Intelligent Informatics 11, no. 6 (July 20, 2007): 641–47. http://dx.doi.org/10.20965/jaciii.2007.p0641.

Testo completo

Abstract (sommario):

Dyadic Curvelet transform (DClet) is proposed as a tool for image processing and computer vision. It is an extended curvelet transform that solves the problem of conventional curvelet, of decomposition into components at different scales. It provides simplicity, dyadic scales, and absence of redundancy for analysis and synthesis objects with discontinuities along curves, i.e., edges via directional basis functions. The performance of the proposed method is evaluated by removing Gaussian, Speckles, and Random noises from different noisy standard images. Average 26.71 dB Peak Signal to Noise Rat

Gli stili APA, Harvard, Vancouver, ISO e altri

45

Vasiljevic, Ivana, Dinu Dragan, Ratko Obradovic, and Veljko Petrović. "Analysis of Compression Techniques for Stereoscopic Images." SPIIRAS Proceedings 6, no. 61 (November 26, 2018): 197–220. http://dx.doi.org/10.15622/sp.61.8.

Testo completo

Abstract (sommario):

Virtual Reality (VR) and Augmented Reality (AR) Head-Mounted Displays (HMDs) have been emerging in the last years and they are gaining an increased popularity in many industries. HMDs are generally used in entertainment, social interaction, education, but their use for work is also increasing in domains such as medicine, modeling and simulation. Despite the recent release of many types of HMDs, two major problems are hindering their widespread adoption in the mainstream market: the extremely high costs and the user experience issues [1]. The illusion of a 3D display in HMDs is achieved with a

Gli stili APA, Harvard, Vancouver, ISO e altri

46

Jerbi, Khaled, Mickaël Raulet, Olivier Déforges, and Mohamed Abid. "Automatic Generation of Optimized and Synthesizable Hardware Implementation from High-Level Dataflow Programs." VLSI Design 2012 (August 16, 2012): 1–14. http://dx.doi.org/10.1155/2012/298396.

Testo completo

Abstract (sommario):

In this paper, we introduce the Reconfigurable Video Coding (RVC) standard based on the idea that video processing algorithms can be defined as a library of components that can be updated and standardized separately. MPEG RVC framework aims at providing a unified high-level specification of current MPEG coding technologies using a dataflow language called Cal Actor Language (CAL). CAL is associated with a set of tools to design dataflow applications and to generate hardware and software implementations. Before this work, the existing CAL hardware compilers did not support high-level features o

Gli stili APA, Harvard, Vancouver, ISO e altri

47

NAGARAJ, NITHIN. "HUFFMAN CODING AS A NONLINEAR DYNAMICAL SYSTEM." International Journal of Bifurcation and Chaos 21, no. 06 (June 2011): 1727–36. http://dx.doi.org/10.1142/s0218127411029392.

Testo completo

Abstract (sommario):

In this paper, source coding or data compression is viewed as a measurement problem. Given a measurement device with fewer states than the observable of a stochastic source, how can one capture their essential information? We propose modeling stochastic sources as piecewise-linear discrete chaotic dynamical systems known as Generalized Luröth Series (GLS) which has its roots in Georg Cantor's work in 1869. These GLS are special maps with the property that their Lyapunov exponent is equal to the Shannon's entropy of the source (up to a constant of proportionality). By successively approximating

Gli stili APA, Harvard, Vancouver, ISO e altri

48

Radosavljević, Miloš, Branko Brkljač, Predrag Lugonja, Vladimir Crnojević, Željen Trpovski, Zixiang Xiong, and Dejan Vukobratović. "Lossy Compression of Multispectral Satellite Images with Application to Crop Thematic Mapping: A HEVC Comparative Study." Remote Sensing 12, no. 10 (May 16, 2020): 1590. http://dx.doi.org/10.3390/rs12101590.

Testo completo

Abstract (sommario):

Remote sensing applications have gained in popularity in recent years, which has resulted in vast amounts of data being produced on a daily basis. Managing and delivering large sets of data becomes extremely difficult and resource demanding for the data vendors, but even more for individual users and third party stakeholders. Hence, research in the field of efficient remote sensing data handling and manipulation has become a very active research topic (from both storage and communication perspectives). Driven by the rapid growth in the volume of optical satellite measurements, in this work we

Gli stili APA, Harvard, Vancouver, ISO e altri

49

Ko, Hyung-Hwa. "Enhanced Binary MQ Arithmetic Coder with Look-Up Table." Information 12, no. 4 (March 26, 2021): 143. http://dx.doi.org/10.3390/info12040143.

Testo completo

Abstract (sommario):

Binary MQ arithmetic coding is widely used as a basic entropy coder in multimedia coding system. MQ coder esteems high in compression efficiency to be used in JBIG2 and JPEG2000. The importance of arithmetic coding is increasing after it is adopted as a unique entropy coder in HEVC standard. In the binary MQ coder, arithmetic approximation without multiplication is used in the process of recursive subdivision of range interval. Because of the MPS/LPS exchange activity that happens in the MQ coder, the output byte tends to increase. This paper proposes an enhanced binary MQ arithmetic coder to

Gli stili APA, Harvard, Vancouver, ISO e altri

50

Eseholi, Tarek, François-Xavier Coudoux, Patrick Corlay, Rahmad Sadli, and Maxence Bigerelle. "A Multiscale Topographical Analysis Based on Morphological Information: The HEVC Multiscale Decomposition." Materials 13, no. 23 (December 7, 2020): 5582. http://dx.doi.org/10.3390/ma13235582.

Testo completo

Abstract (sommario):

In this paper, we evaluate the effect of scale analysis as well as the filtering process on the performances of an original compressed-domain classifier in the field of material surface topographies classification. Each surface profile is multiscale analyzed by using a Gaussian Filter analyzing method to be decomposed into three multiscale filtered image types: Low-pass (LP), Band-pass (BP), and High-pass (HP) filtered versions, respectively. The complete set of filtered image data constitutes the collected database. First, the images are lossless compressed using the state-of-the art High-eff

Gli stili APA, Harvard, Vancouver, ISO e altri

Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!