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Lossless Compression of Pharynx and Esophagus in Fluoroscopic Medical Images

Arif Sameh Arif, Sarina Mansor, Rajasvaran Logeswaran, Hezerul Abdul Karim
2013 International Journal of Bioscience Biochemistry and Bioinformatics  
From the experimental results obtained, the proposed method achieved improved performance with a compression ratio of 12.2 for the proposed combination of Run-length and Huffman coding (R.  ...  Otherwise, the shifted images moved to a shifted group and compress separately.  ...  Huff-S) compression of the images. For example, images 30 and 31, the standard combination method (R. Huff-S) only produced CR of 1.35.  ... 
doi:10.7763/ijbbb.2013.v3.260 fatcat:hga77z44pjhphf5cirp24jey2y

Application of Image Compression to Multiple-Shot Pictures Using Similarity Norms With Three Level Blurring

Mohammed Omari, Souleymane Ouled Jaafri
2019 Computers Materials & Continua  
In the process of extracting the different sub-images, we used the mean squared error for comparison and three blurring methods (simple, middle and majority blurring) to increase the compression ratio.  ...  All images that belong to the same group are compressed based on dividing the images of the same group into sub-images of equal sizes and saving the references into a codebook.  ...  Our contribution: picture group compression Picture group compression (PGC), is a new proposed method that takes advantage of the redundancy and the duplication not only in one image but in a set of images  ... 
doi:10.32604/cmc.2019.06576 fatcat:vfrrthaq65c4rjm2hjdhqkzsiy

Detecting and coding region of interests in bi-level images for data reduction in Wireless Visual Sensor Network

Khursheed Khursheed, Naeem Ahmad, Muhammad Imran, Mattias O'Nils
2012 2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)  
We concluded that CCITT Group 4 is a better choice for coding the ROIs in the Bi-level images because of its comparatively good compression performance and less computational complexity.  ...  The CCITT Group 4, JBIG2 and Gzip are used for coding the detected ROIs.  ...  Figure 12 (b) shows that the compressed file size for compressing ROIs of various shapes using CCITT Group 4 is almost similar.  ... 
doi:10.1109/wimob.2012.6379153 dblp:conf/wimob/KhursheedASO12 fatcat:ta27wwcdirgnzkv252macucfhy


Amanpreet Kaur
2017 International Journal of Advanced Research in Computer Science  
They concluded that fractal coding was better method for image compression as compared to Huffman coding and Discrete Wavelet Transform in terms of PSNR and Compression Ratio parameter.  ...  III.PROPOSED METHOD The proposed lossless compression method used the decision tree for compression of a grey scale images.  ... 
doi:10.26483/ijarcs.v8i8.4812 fatcat:xwa3ou3uxbexloikg2aoudhcsu


Shashank Kumar .
2016 International Journal of Research in Engineering and Technology  
Image compression is the method of converting data file into smaller compact files for efficiency of storage and transmission.  ...  DCT transform individual 8*8 pixel groups .In this paper PCA and JPEG compression are applied to the image and various parameter like PSNR and MSE is calculated for both of the compression technique.  ...  Area Coding: Area coding is a method or improved form of run length coding. In Area Coding rectangular area of similar characteristics is extracted. vectors.  ... 
doi:10.15623/ijret.2016.0518002 fatcat:ta2yzjq3tbeh5bm7z4vwj2rozy

Exploring correlation information for image compression of four-dimensional computed tomography

Hui Yan, Yexiong Li, Jianrong Dai
2019 Quantitative Imaging in Medicine and Surgery  
The video encoder with inter-frame prediction coding algorithm and LP ordering method would be highly suitable for 4DCT image compression.  ...  The LP ordering method would result in higher compression ratio than the PP ordering method for 4DCT image compression.  ...  For few cases the compression ratios of LP ordering method were similar to those of PP ordering method.  ... 
doi:10.21037/qims.2019.06.19 pmid:31448212 pmcid:PMC6685803 fatcat:3lzfvvv6ffg4dovyg3ubbfcfri

Data Mining Un-Compressed Images from cloud with Clustering Compression technique using Lempel-Ziv-Welch

C. Parthasarathy, K. Srinivasan, R. Saravanan
2013 International Journal of Artificial Intelligence & Applications  
We are going to mine the un-compressed image from the cloud and use k-means clustering grouping the uncompressed image and compress it with Lempel-ziv-welch coding technique so that the un-compressed images  ...  Cloud computing is a highly discussed topic in the technical and economic world, and many of the big players of the software industry have entered the development of cloud services.  ...  Methods of Image compression have been studied for almost four decades. An enhanced scaling algorithm was devised.  ... 
doi:10.5121/ijaia.2013.4413 fatcat:plueb2inybft7k5hv7k5mzhowq

Image Compression using Fractal Image Compression with Multi-Layer Feed Forward Artificial Neural Network

Shamina Khatun
2019 International Journal for Research in Applied Science and Engineering Technology  
It is a block based image compression; it is used to detecting and coding the existing similarities between different regions in the image.  ...  The experimental results show that the performance of our Neural Network based Fractal Image compression is deeply improved in terms of encoding time without degrading the image quality as compared to  ...  Fractal image compression is a comparatively recent image compression method which is based on similarities in unlike parts of the image.  ... 
doi:10.22214/ijraset.2019.7131 fatcat:la5iqowjmnfetoekg6monczyeu

1-D chaincode pattern matching for compression of Bi-level printed farsi and arabic textual images

Hadi Grailu, Mojtaba Lotfizad, Hadi Sadoghi-Yazdi
2009 Image and Vision Computing  
In this paper, a lossy/lossless compression method is proposed for bi-level printed text images in archiving applications.  ...  Experimental results show that the compression performance of the proposed method is considerably better than those of the existing bi-level printed text image compression methods as high as 1.8-4.2 times  ...  Table 2 The compression performance of the proposed lossy compression method and the lossy jb2 method for the six text images.  ... 
doi:10.1016/j.imavis.2009.04.006 fatcat:d3wl2kkbxjb5bendd7md37kg2m

Bi-Level Video Codec for Machine Vision Embedded Applications

K. Khursheed, M. Imran, N. Ahmad, M. O'Nils
2013 Elektronika ir Elektrotechnika  
The focus is to determine a compression method which can efficiently compress bi-level images and its processing complexity is suitable for the embedded platforms usually used for the implementation of  ...  This paper is intended to be a resource for the researcher interested in using bi-level image compression methods in energy constrained real time embedded systems.  ...  CCITT Group 3 (2D) and Group 4 CCITT Group 3 2-Dimensional (2D) and Group 4 are based on the Huffman coding and are almost similar except few differences.  ... 
doi:10.5755/j01.eee.19.8.5401 fatcat:psi3fxt4mjhfnmlyhgg4cwrwde

Learning Context-Based Non-local Entropy Modeling for Image Compression [article]

Mu Li, Kai Zhang, Wangmeng Zuo, Radu Timofte, David Zhang
2020 arXiv   pre-print
The entropy of the codes usually serves as the rate loss in the recent learned lossy image compression methods.  ...  the existing image compression standards and recent deep image compression models.  ...  ACKNOWLEDGMENT The authors would like to thank the NVIDIA Corporation for donating a TITAN Xp GPU used in this research.  ... 
arXiv:2005.04661v1 fatcat:r5ytixquz5h3df5xhcfo3inoli

Document retrieval from compressed images

Yue Lu, Chew Lim Tan
2003 Pattern Recognition  
Aiming at the popular compression standard-CCITT Group 4 which is widely used for compressing document images, we present an approach to retrieve the documents from CCITT Group 4 compressed document images  ...  Document vectors are built by the occurrence frequency of the word object classes, and the pair-wise similarity of two document images is represented by the scalar product of the document vectors.  ...  Acknowledgements This project is supported by the National Science and Technology Board and Ministry of Education of Singapore under research grant R255-000-071-112=303.  ... 
doi:10.1016/s0031-3203(02)00127-9 fatcat:pe7eb3ceqbdghn45hgcaolwaem

Arabic Textual Images Compression Approach

Jassem Mtimet, Hamid Amiri
2014 Procedia Computer Science  
In this paper, a novel compression approach for large Arabic textual images is proposed. Initially, input texts are segmented into patterns which represent sub-words.  ...  Then, patterns-matching procedure is used in order to find similar patterns within the image.  ...  Proposed system In this paper, we propose a compression method for large text contained in Arabic documents. One of the test documents is shown as Fig.1 .  ... 
doi:10.1016/j.procs.2014.08.091 fatcat:7euuh7xjujfs5ipta3vjat53be

Segmentation based coding of human face images for retrieval

Ömer Nezih Gerek, Hatice Çınar
2004 Signal Processing  
The overall method is found to achieve comparable compression ratios with compatible image coding methods.  ...  A coding method for face images by segmenting face regions such as eyes, mouth, etc. is introduced.  ...  Consider the construction of compressed image database as illustrated in Fig. 5 . The compressed data contains information such as "left eye = group 2", "right eye = group 5", "lips = group 7", etc.  ... 
doi:10.1016/j.sigpro.2004.03.007 fatcat:kiituwi6czh57eqrmumlbpin5u

Light Field Image Compression with Sub-apertures Reordering and Adaptive Reconstruction [chapter]

Chuanmin Jia, Yekang Yang, Xinfeng Zhang, Shiqi Wang, Shanshe Wang, Siwei Ma
2018 Lecture Notes in Computer Science  
adaptive filters which extracts the non-local similarities for collaborative filtering to promote the quality of reconstructed lenslet images.  ...  Extensive experimental results show that the proposed method achieves up to 15.7% coding gain in terms of BD-rate.  ...  Young Talents Program of China, which are gratefully acknowledged.  ... 
doi:10.1007/978-3-319-77380-3_5 fatcat:dcjktkuaa5hwnmaet54chyleoy
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