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On the Computation of PSNR for a Set of Images or Video
[article]
2021
arXiv
pre-print
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However, there does not exist a generally agreed upon practice to compute PSNR for sets of images or video. ...
We show the difference between computing the PSNR based on arithmetic vs. geometric mean of MSE depends on the distribution of MSE over the set of images or video, and that this distribution is task-dependent ...
Alternatively, one can first compute an MSE or PSNR value for each video and then obtain a PSNR for the set of N videos. We discuss these options in the following.
A. ...
arXiv:2104.14868v1
fatcat:g4ayu3rsznenlmu2t6zjmqmpdi
Content-weighted video quality assessment using a three-component image model
2010
Journal of Electronic Imaging (JEI)
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In this work, we propose a new content-weighted method for fullreference (FR) video quality assessment using a three-component image model. ...
Experimental results on the Video Quality Experts Group (VQEG) FR-TV Phase 1 test dataset show that the proposed algorithm outperforms existing video quality assessment methods. ...
Acknowledgement This research is supported by the Self-determined Research Program of Jiangnan University ͑No. JUSRP20915͒. ...
doi:10.1117/1.3267087
fatcat:5uvsqivvibhdni64wfhnxjurqe
Perception-Oriented Methodology for Robust Motion Estimation Design
2014
IEEE Journal on Selected Topics in Signal Processing
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This proof involved a user rating of 93 MEs in 3 video sequences. The 93 MEs were systematically selected from a total of 7000 ME alternatives. ...
Optimizing a motion estimator (ME) for picture rate conversion is challenging. ...
ACKNOWLEDGMENT The authors would like to thank Tim Nederhoff and Ingrid Heynderickx for their contribution to this work. ...
doi:10.1109/jstsp.2014.2317289
fatcat:75zk34rdhzf2xmojq2oqkuhndy
Super-resolution-based enhancement for real-time ultra-low-bit-rate video coding
2007
Mobile Multimedia/Image Processing for Military and Security Applications 2007
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To lower the level of noise and retain the sharpness of the video frames, we build on our previous work in super-resolution-based video enhancement and propose a new version that is suitable for real-time ...
The adopted super-resolution-based enhancement uses a constrained set of motion vectors that is computed from the original (uncompressed) video at the encoder. ...
Based on different network settings, the server and client communicate either via two separate network channels or via a single network channel. ...
doi:10.1117/12.720065
fatcat:juzdng2e2ba4fkzf3tk6uaiktq
Analysis of the image quality transmitted by an IPTV system
2018
International Journal of Engineering and Technology
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However, this client is only available for computers, so if you want to establish a session or request content within this environment from a TV, you must use a Top Box Set that integrates an IMS agent ...
For this reason, this article presents the results found when evaluating the PSNR metric in order to determine the relationship between the maximum energy of a signal (image) versus background noise; and ...
The first will be the IMS architecture mentioned for the visualization of content in computers while for televisions a platform without NGN or IMS will be used, that is, the Top Box Set will connect directly ...
doi:10.21817/ijet/2018/v10i5/181005068
fatcat:tjdpmlovw5goraimaaese2eyee
Testbed for subjective evaluation of omnidirectional visual content
2016
2016 Picture Coding Symposium (PCS)
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Along with virtual reality, omnidirectional imaging is becoming a very important type of the modern media content. ...
More specifically, the ability to assess quality of omnidirectional images in reliable manner is a crucial step to provide a rich quality of immersive experience. ...
The metrics were PSNR, WS-PSNR and CPP-PSNR [5] . PSNR was computed between images of the same projection (for equirectangular and cubic). WS-PSNR is only suitable for equirectangular projection. ...
doi:10.1109/pcs.2016.7906378
dblp:conf/pcs/UpenikRE16
fatcat:dz6olfwvnbf6jkblsg3bzwgd4q
Shape-Adaptive Motion Estimation Algorithm for MPEG-4 Video Coding
[article]
2010
arXiv
pre-print
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This paper presents a gradient based motion estimation algorithm based on shape-motion prediction, which takes advantage of the correlation between neighboring Binary Alpha Blocks (BABs), to match with ...
The PSNR and computation time achieved by the proposed algorithm seem to be better than those obtained by most popular motion estimation techniques. ...
is a threshold value which decreases the sensitivity of pixel recursion to noise; it is usually set to a value of two or three [10] . ...
arXiv:1002.1168v1
fatcat:vdpgj2ejfbggldy37xwuvhkdkq
Hiding Data in video Sequences using LSB with Elliptic Curve Cryptography
2015
International Journal of Computer Applications
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This paper focus on utilization of digital video/images as a cover to hide data and for insisting more security encryption is done with steganography. ...
In the proposed method encrypting message image with ECC and hiding encrypted image using LSB within cover video. ...
Video/Image Steganography A video consist of set of frames (digital images)that are played back at certain frame rates based on video standards. ...
doi:10.5120/20658-3296
fatcat:mq7io2duxregnhy73vncnnoijm
Hybrid Approach for Video Compression using Ant Colony Optimization and Modified Fast Haar Wavelet Transform
2014
International Journal of Computer Applications
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In order to fulfill the requirement of growing demand of video on internet like its streaming, digital library and also due to limited channel bandwidth, video compression has become a necessity and in ...
One of the popular methods for motion estimation is intensity based block matching which determines the movement of blocks between the adjacent frames, but a common drawback with this block motion estimation ...
It gives a flat reduction in computation by a factor of 9. So that for p = 7, ES will compute cost for 225 macro blocks whereas TSS computes cost for 25 macro blocks [10] . ...
doi:10.5120/17100-7684
fatcat:wcxcdq2wffaclknkznlnwaaegm
Construction Method of Efficient Database for Learning-Based Video Super-Resolution
2009
IPSJ Transactions on Computer Vision and Applications
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One is that they require a large amount of memory to store examples; while the other is the high computational cost of finding the nearest neighbors in the database. ...
In order to alleviate these problems, it is helpful to reduce the dimensionality of examples and to store only a small number of examples that contribute to the synthesis of a high quality video. ...
However, PCA is itself computationally expensive and is thus unsuitable for video SR, which must process a large amount of data. ...
doi:10.2197/ipsjtcva.1.277
fatcat:6d7uhb5cejcojmjydtp3ytuqyq
Video quality assessment using a statistical model of human visual speed perception
2007
Optical Society of America. Journal A: Optics, Image Science, and Vision
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Motion is one of the most important types of information contained in natural video, but direct use of motion information in the design of video quality assessment algorithms has not been deeply investigated ...
Consistent improvement over existing video quality assessment algorithms is observed in our validation with the video quality experts group Phase I test data set. ...
One explanation might be that the absolute error map (the first step in computing MSE/PSNR) gives a very poor indication of local image quality, as exemplified by Fig. 4 . ...
doi:10.1364/josaa.24.000b61
pmid:18059915
fatcat:hzf6ubjyqbh5niuvuyjlvcuwdu
Comparison of HDTV formats using objective video quality measures
2010
Multimedia tools and applications
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In this paper we compare some of the objective quality measures with subjective, in several HDTV formats, to be able to grade the quality of the objective measures. ...
Also, comparison of objective and subjective measures between progressive and interlaced video signal will be presented to determine which scanning emission format is better, even if it has different resolution ...
There are two possibilities to calculate PSNR of a video sequence from PSNR of each of the images: average or global (or overall) PSNR. ...
doi:10.1007/s11042-009-0441-2
fatcat:cmimev45ybcvzgx3abldq4ltri
Content-aware objective video quality assessment
2016
Journal of Electronic Imaging (JEI)
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Recently, we proposed a method to predict PVQ by introducing relevant video content features in the computation of video distortion measures. ...
Since the end-user of video-based systems is often a human observer, prediction of user-perceived video quality (PVQ) is an important task for increasing the user satisfaction. ...
Acknowledgments Parts of this work were performed within the Telesurgery project (cofunded by iMinds, a Digital Research Institute founded by the Flemish Government; project partners are Unilabs Teleradiology ...
doi:10.1117/1.jei.25.1.013011
fatcat:7armubbg7zhbpdrjrlsnkbd4aq
Higher order prediction for sub-pixel motion estimation
2009
2009 16th IEEE International Conference on Image Processing (ICIP)
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Estimating motion between two frames of a video sequence, up to sub-pixel accuracy, is a critical task for many image processing applications. ...
Initial experiments have proved promising results of about 50% more improvement in PSNR compared to quadratic prediction with only a marginal increase in the computational cost. ...
However these techniques are either deficient or computationally exhaustive to be applied for general video sequences with arbitrary motions, for instance in video encoding or super-resolution applications ...
doi:10.1109/icip.2009.5413398
dblp:conf/icip/MudugamuwaHAY09
fatcat:eigusjbr7zgjnd5pd726zhu42i
Experimental Comparison of Video Streaming Platforms and Devices with Objective Quality of Experience Metrics Towards Reliable Multimedia Applications in Education
2019
Journal of Physics, Conference Series
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In the first two scenarios, Data video at two different settings were engaged at the encoding end and PotPlayer was used for decoding and recording of the transmitted videos. ...
The objective metrics considered for the comparison of these media are the Peak Signal-to-Noise Ratio (PSNR), Structural Similarity (SSIM), Visual Information Fidelity (VIF), Information Fidelity Criterion ...
The MSE simply measures the average of the squares of the deviations (E. L. Lehmann et al. 1998). A higher PSNR value generally indicates a distorted or compressed image of better quality. ...
doi:10.1088/1742-6596/1378/3/032087
fatcat:zpkplelsabaerl7wvd2gd3kdhy
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