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Evaluating the Practicality of Learned Image Compression [article]

Hongjiu Yu, Qiancheng Sun, Jin Hu, Xingyuan Xue, Jixiang Luo, Dailan He, Yilong Li, Pengbo Wang, Yuanyuan Wang, Yaxu Dai, Yan Wang, Hongwei Qin
2022 arXiv   pre-print
Optimized using a hybrid loss of PSNR and MS-SSIM for better visual quality, we obtain much higher MS-SSIM than JPEG, JPEG XL and AVIF over all bit rates, and PSNR between that of JPEG XL and AVIF.  ...  In this paper, we introduce neural architecture search (NAS) to designing more efficient networks with lower latency, and leverage quantization to accelerate the inference process.  ...  It also defeats JPEG XL at low bit rates. Its performance is still comparable to JPEG XL when bpp exceeds 1.0. For AVIF, our LIC model is comparable at low bit rates but lags as bit rate increases.  ... 
arXiv:2207.14524v1 fatcat:wpdi6axprnbc5nmdg7w3vmgu4y

Compressed Histogram of Gradients: A Low-Bitrate Descriptor

Vijay Chandrasekhar, Gabriel Takacs, David M. Chen, Sam S. Tsai, Yuriy Reznik, Radek Grzeszczuk, Bernd Girod
2011 International Journal of Computer Vision  
We propose a framework for computing low bit-rate feature descriptors with a 20× reduction in bit rate compared to state-of-theart descriptors.  ...  Transmission and storage of these descriptors are of critical importance in the context of mobile visual search applications.  ...  Retrieval Experiments In this section, we show how the low bit-rate CHoG descriptors enable novel, efficient mobile visual search applications.  ... 
doi:10.1007/s11263-011-0453-z fatcat:int36ohowvhkdhucbnupw4kjy4

Quantization schemes for low bitrate Compressed Histogram of Gradients descriptors

Vijay Chandrasekhar, Yuriy Reznik, Gabriel Takacs, David Chen, Sam Tsai, Radek Grzeszczuk, Bernd Girod
2010 2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Workshops  
We construct optimal Entropy Constrained Vector Quantization (ECVQ) code-books and show that Type Coding comes close to achieving optimal performance.  ...  We study different quantization schemes for the Compressed Histogram of Gradients (CHoG) image feature descriptor.  ...  We construct optimal Entropy Constrained Vector Quantization (ECVQ) code-books and show that Type Coding comes close to achieving optimal performance.  ... 
doi:10.1109/cvprw.2010.5543242 dblp:conf/cvpr/ChandrasekharRT10 fatcat:vjebpymaj5a4filvpobm76jrci

Mobile Visual Search

Bernd Girod, Vijay Chandrasekhar, David Chen, Ngai-Man Cheung, Radek Grzeszczuk, Yuriy Reznik, Gabriel Takacs, Sam Tsai, Ramakrishna Vedantham
2011 IEEE Signal Processing Magazine  
Second, we observe that the performance of the JPEG scheme rapidly deteriorates at low bit rates.  ...  CONCLUDING REMARKS Mobile visual search is ready for prime time.  ...  His research interests include large-scale content-based image and video retrieval for mobile visual search applications.  ... 
doi:10.1109/msp.2011.940881 fatcat:gqhnss45g5cx7dtld7q6rrai3m

Source Coding and Channel Coding for Mobile Multimedia Communication [chapter]

Hammad Dilpazir, Hasan Mahmood, Tariq Shah, Hafiz Malik
2012 Mobile Multimedia - User and Technology Perspectives  
The bit allocation is a tradeoff between quantization level and the channel coding rate.  ...  Quantization: The wavelet coefficients are scalar-quantized to reduce the number of bits to represent them, at the expense of quality using weighting functions optimized for the human eye.  ...  Source Coding and Channel Coding for Mobile Multimedia Communication, Mobile Multimedia -User and Technology Perspectives, Dr.  ... 
doi:10.5772/26153 fatcat:lfgocw3onrajdbojb5rwepv5zq

On the design of a novel JPEG quantization table for improved feature detection performance

Jianshu Chao, Hu Chen, Eckehard Steinbach
2013 2013 IEEE International Conference on Image Processing  
The detection performance of the state-ofthe-art detectors is, however, strongly influenced by compression artifacts, especially at low bit rates.  ...  In this paper, we design a novel quantization table for the widely-used JPEG compression standard which leads to improved feature detection performance.  ...  ., in digital camera or mobile visual search applications, images are typically compressed after their acquisition.  ... 
doi:10.1109/icip.2013.6738345 dblp:conf/icip/ChaoCS13 fatcat:5x47sf7cs5epjpnal6fhkyzxom

Selective aggregated descriptors for robust mobile image retrieval

Jie Lin, Zhe Wang, Yitong Wang, Vijay Chandrasekhar, Liyuan Li
2015 2015 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA)  
Towards low latency query transmission via wireless link, methods have been proposed to extract compact visual descriptors on mobile device and then send these descriptors to the server at low bit rates  ...  In addition, the proposed method allows fast descriptor matching and less storage of visual descriptors for large database.  ...  bit rates in recent mobile image retrieval systems.  ... 
doi:10.1109/apsipa.2015.7415497 dblp:conf/apsipa/LinWWCL15 fatcat:mjzl3uxwe5g4fgfuc6uh5oimka

JPEG: Still Image Compression Standard [chapter]

2005 Image Processing  
PSNR (in dB) for the color image "ski" (of size 720 × 576 pixels per component) L 16. ROI encoding results by means of the general scaling method.  ...  His research interests include still, moving, and three-dimensional image processing and coding, and visual information security.  ...  JPEG 2000, and the best paper award of IEEE Transactions on Consumer Electronics.  ... 
doi:10.1002/0471745790.ch16 fatcat:clkbtavk6fgbpdquwcrxle62la

State-Of-The-Art In Video Processing: Compression, Optimization And Retrieval

G. Megala, Et. al.
2021 Turkish Journal of Computer and Mathematics Education  
Nowadays high-resolution video data are transferred through the communication channel having high bit rate in order to send multiple compressed videos.  ...  A survey on various block matching algorithms, quantization and entropy coding are focused. It is found that many of the methods having computational complexities needs improvement with optimization.  ...  It is also used to deliver good video quality by means of low and high latency, at low bit rate and high bit rate for low and high resolution.  ... 
doi:10.17762/turcomat.v12i5.1793 fatcat:q3ocrh73xva5znrewith5opftm

JPEG - Still Image Compression Standard [chapter]

2005 JPEG2000 Standard for Image Compression  
PSNR (in dB) for the color image "ski" (of size 720 × 576 pixels per component) L 16. ROI encoding results by means of the general scaling method.  ...  His research interests include still, moving, and three-dimensional image processing and coding, and visual information security.  ...  JPEG 2000, and the best paper award of IEEE Transactions on Consumer Electronics.  ... 
doi:10.1002/0471653748.ch3 fatcat:4xaxxnlmufdgvfhmdyfhalbr24

The JPEG 2000 still image compression standard

A. Skodras, C. Christopoulos, T. Ebrahimi
2001 IEEE Signal Processing Magazine  
PSNR (in dB) for the color image "ski" (of size 720 × 576 pixels per component) L 16. ROI encoding results by means of the general scaling method.  ...  His research interests include still, moving, and three-dimensional image processing and coding, and visual information security.  ...  JPEG 2000, and the best paper award of IEEE Transactions on Consumer Electronics.  ... 
doi:10.1109/79.952804 fatcat:5vng7rfq3rgtfl7it7oyjcqkly

Overview of the MPEG CDVS Standard

Ling-Yu Duan, Tiejun Huang, Wen Gao
2015 2015 Data Compression Conference  
Compact Descriptors for Visual Search (CDVS) is a recently completed standard from the ISO/IEC Moving Pictures Experts Group (MPEG).  ...  Normally, a mobile visual search system transmits JPEG-encoded query images from the mobile end to the remote server, where a visual search is performed over a reference image database.  ...  The requirements for mobile visual search, such as faster searches, higher accuracy and better user experience, pose a unique set of challenges.  ... 
doi:10.1109/dcc.2015.72 dblp:conf/dcc/DuanHG15 fatcat:wha6iw5vvbannkh2mqmwmd6dym

JPEG 2000: A Potential Solution for Archiving HDTV Content

Adi Kouadio
2009 SMPTE Motion Imaging Journal  
Because each system delivers a different level of visual quality (they use different settings, bit rates, etc.), it is neces sary to find the optimal JPEG 2000 settings that allow visually loss- less preservation  ...  on the quantization, but in JPEG 2000, the rate-control algorithm will drop packets (blocks in the bit stream which do not contribute to a particular quality level below the re quested encoding rate.  ... 
doi:10.5594/j14888 fatcat:mqrihcvotjcubfv26fvp4t434u

Guetzli: Perceptually Guided JPEG Encoder [article]

Jyrki Alakuijala, Robert Obryk, Ostap Stoliarchuk, Zoltan Szabadka, Lode Vandevenne, Jan Wassenberg
2017 arXiv   pre-print
Guetzli is a new JPEG encoder that aims to produce visually indistinguishable images at a lower bit-rate than other common JPEG encoders.  ...  It optimizes both the JPEG global quantization tables and the DCT coefficient values in each JPEG block using a closed-loop optimizer.  ...  A global quantization table is an array of 192 values. It is infeasible to perform anything that approximates an exhaustive search of that space.  ... 
arXiv:1703.04421v1 fatcat:cu6y3fjk2vgdfohnaoxxhg4alm

Overview of the MPEG-CDVS Standard

Ling-Yu Duan, Vijay Chandrasekhar, Jie Chen, Jie Lin, Zhe Wang, Tiejun Huang, Bernd Girod, Wen Gao
2016 IEEE Transactions on Image Processing  
Compact Descriptors for Visual Search (CDVS) is a recently completed standard from the ISO/IEC Moving Pictures Experts Group (MPEG).  ...  Normally, a mobile visual search system transmits JPEG-encoded query images from the mobile end to the remote server, where a visual search is performed over a reference image database.  ...  The requirements for mobile visual search, such as faster searches, higher accuracy and better user experience, pose a unique set of challenges.  ... 
doi:10.1109/tip.2015.2500034 pmid:26571532 fatcat:hk5afng2wza4va46ujxrpo3exy
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