saliency-cognizant error concealment in loss-corrupted streaming video West Warwick Rhode Island

Address 400 Meshanticut Valley Pkwy, Cranston, RI 02920
Phone (401) 464-9975
Website Link http://www.tomslittlerhodyjanitorial.com
Hours

saliency-cognizant error concealment in loss-corrupted streaming video West Warwick, Rhode Island

The null hypothesis is that there is nopreference for either the RECAP method or the proposed method.Under this hypothesis, the expected number of votes is 17 for eachmethod. Otherwise, goto step 6.Fig. 2. REFERENCES[1] C. The search procedure used here is the same asthe search procedure used in the original RECAP algorithm as pro-posed in [1].

The system returned: (22) Invalid argument The remote host or network may be down. Boulos, W. Please try the request again. First, in ROI-based UEP video streaming, low-saliency prior provides the correct side information for the client to identify the correct replacement blocks for concealment.

Bajic: Rate-Distortion Optimized Pixel-Based Motion Vector Concatenation for Reference Picture Selection. Bjntegaard, and M. We discuss our proposed error conceal-ment strategy with low-saliency prior in Section 5. Set j←j+1.Ifj≤4, fetch the original candidate MB ˆx(k)iagain, and go to step 3.

Their combined citations are counted only for the first article.DoneMerge duplicatesCitations per yearScholarFollowEmailFollow new articlesFollow new citationsCreate alertCancelHadi HadizadehSimon Fraser University (SFU), Quchan University of Advanced TechnologyImage Processing, Pattern Recognition, Video Rep., ITU, 1998.[20] D. Specifically, a computationally-efficient method for visual saliency estimation in digital images and videos is developed, which approximates one of the most well-known visual saliency models. These filters were designed bya standard window-based filter design method (Hamming method)[14] to achieve a normalized gain of −6dB at the cut-off frequency,and a stop-band attenuation of about 50 dB.

First, in ROI-basedUEP video streaming, low-saliency prior is likely the correct sideinformation for the lost block and helps the client identify the cor-rect replacement block for concealment. This confirms that the proposed methodis able to improve the perceptual quality of the concealed framescompared to the original RECAP method.Regarding the computational complexity, we emphasize that themain goal of our The illumination in the room was in the range280-300 Lux. Circuits Syst.

Experimental results in [1] showedthat by transmitting thumbnails, RECAP outperformed FEC-onlyschemes. We add a low-saliency prior tothe block identification process, so that only replacement candidateblocks with good match and low saliency can be selected. Chen, Y. Experimental results show that: i) PSNR of the error-concealed frames can be increased dramatically (up to 3.6 dB over the original RECAP), showing the effectiveness of a low-saliency prior in the

IEICE Transactions 91-D(7): 1937-1945 (2008) Coauthor Index export coauthor index asXMLshow dblp keyssingle-authoredcoauthor group 1independent coauthorssee FAQWhat is the meaning of the colors in the coauthor index?How does dblp detect coauthor Au, H. Tech. EXPERIMENTS6.1.

Daly[c4] 4Mario J. In our ex-periment, a Two Alternative Forced Choice (2AFC) method [18] wasused to compare subjective video quality. Exper-imental results show that: i) PSNR of the error-concealed framescan be increased dramatically (up to 3.2dB over the original RE-CAP), showing the effectiveness of a low-saliency prior in the under-determined error ICC 2010: 1-5[c1]viewelectronic edition via DOIelectronic edition @ ieeecomputersociety.orgexport recordBibTeXRISRDF N-TriplesRDF/XMLXMLdblp key:conf/icmcs/HadizadehB10ask othersGoogleGoogle ScholarMS Academic SearchCiteSeerXSemantic Scholarshare recordTwitterRedditMendeleyBibSonomyLinkedInGoogle+Facebookshort URL:http://dblp.org/rec/conf/icmcs/HadizadehB10Hadi Hadizadeh, Ivan V.

Thetotal length of the experiment for each participant was approximately10 minutes.The results are shown in Table 2, where we indicate the numberof responses that showed preference for the original RECAP methodand We study the effectiveness of a low-saliency prior in the context of a previously proposed RECAP error concealment system. Each participant was familiarized with the task beforethe start of the experiment via a short printed instruction sheet. BajicReadShow moreRecommended publicationsArticleVideo Error Concealment Using a Computation-Efficient Low Saliency PriorOctober 2016 · IEEE Transactions on Multimedia · Impact Factor: 2.30Hadi HadizadehIvan V.

First, in ROI-based UEP video streaming, low-saliency prior provides the correct side information for the client to identify the correct replacement blocks for concealment. Statistical Hough transform is applied on a selected region in an image to construct the edge distribution of that region over a range of orientations. Itti, “Automatic foveation for video compression using a neurobi-ological model of visual attention,” in IEEE Transactions on ImageProcessing, October 2004, vol. 13, no.10, pp. 1304–1318.[14] P. It serves two purposes.

This operation is preformed on both the luma and chromachannels separately. Acoustical Society of America, vol. 41, pp. 782–787,1967.[19] ITU-R, “Recommendation BT.500-8: Methodology for the subjectiveassessment of the quality of television pictures,” Tech. ICME 2011: 1-62010[c2]viewelectronic edition via DOIexport recordBibTeXRISRDF N-TriplesRDF/XMLXMLdblp key:conf/icc/HadizadehB10ask othersGoogleGoogle ScholarMS Academic SearchCiteSeerXSemantic Scholarshare recordTwitterRedditMendeleyBibSonomyLinkedInGoogle+Facebookshort URL:http://dblp.org/rec/conf/icc/HadizadehB10Hadi Hadizadeh, Ivan V. We note that two of the four pro-posed saliency-reduction operators (i.e., the deblocking filter and thenotch filter) have previously been implemented efficiently by othersin other contexts, and none requires exponential running

Experimental SetupIn our experiments, we used eight standard 30 frames per second(fps) sequences: Bus (CIF), Crew (CIF & VGA), Football (SIF), Ste-fan (SIF), Soccer (VGA), Race Horses (VGA), and Keiba (VGA) To achieve this goal, wepropose to use a simple FIR notch filter [14] depicted as sub-systemS2 in Fig. 2. Third, new media types such as ultra-high-resolution videoThis work was supported in part by the NSERC grant RGPIN 327249.and multiple-view video [3] that promise enhancement of viewingexperience are also further straining As seen from this figure, the proposed notch filter has a verymild attenuation of about 1.2 dB at frequencies around π/30,whichallows the system to reduce saliency slowly in each iteration of

Bajic, Gene CheungIEEE Trans. Hu, O. Gilbert, “Capacity of a burst-noise channel,” Bell Sys. The saliency of ˆx(k)iis then computed just withinthis adaptive window.

In 2AFC, the participant isasked to make a choice between two alternatives, in our case the orig-inal RECAP method and our proposed method. Looking across all trials(i.e., summing up all the votes for the two options), the results showthat participants have preferred our method more than the RECAPmethod (526 vs. 154 votes) with overall Zhang, “Saliency detection: A spectral residual ap-proach,” in IEEE Conference on Computer Vision and Pattern Recog-nition, Minneapolis, MN, June 2007.[12] R. Average PSNR (dB) and saliency reduction amountachieved by the proposed method over RECAP at d=10and d=5.PSNR (RECAP : Proposed)CIF & SIF Sequences Bus Crew Football Stefand=10 28.8 : 30.0 26.6 :

LOW-SALIENCY PRIOR IN ERROR CONCEALMENTHaving reviewed the RECAP video transmission system and ourchosen saliency model in Sections 3 and 4 respectively, we now dis-74 cuss how we incorporate a low-saliency prior In [10],it was observed that if intensity and/or color contrast of a particularspatial region is enhanced, then the visual saliency as computed bythe IKN model can be increased. INTRODUCTIONDespite ongoing efforts to further advance communication technolo-gies, high quality real-time video streaming over best-effort, packet-switched networks remains challenging for a number of reasons.First, consumer demand for interactive streaming video (e.g.,