IEEE Trans Image Process - Composite model-based DC dithering for suppressing contour artifacts in decompressed video.

Tópicos

{ imag(2830) propos(1344) filter(1198) }
{ imag(2675) segment(2577) method(1081) }
{ imag(1947) propos(1133) code(1026) }
{ data(3963) clinic(1234) research(1004) }
{ method(1557) propos(1049) approach(1037) }
{ process(1125) use(805) approach(778) }
{ detect(2391) sensit(1101) algorithm(908) }
{ error(1145) method(1030) estim(1020) }
{ model(2656) set(1616) predict(1553) }
{ group(2977) signific(1463) compar(1072) }
{ method(1219) similar(1157) match(930) }
{ featur(3375) classif(2383) classifi(1994) }
{ algorithm(1844) comput(1787) effici(935) }
{ model(2220) cell(1177) simul(1124) }
{ system(1050) medic(1026) inform(1018) }
{ studi(1119) effect(1106) posit(819) }
{ cost(1906) reduc(1198) effect(832) }
{ data(3008) multipl(1320) sourc(1022) }
{ use(2086) technolog(871) perceiv(783) }
{ structur(1116) can(940) graph(676) }
{ system(1976) rule(880) can(841) }
{ sequenc(1873) structur(1644) protein(1328) }
{ assess(1506) score(1403) qualiti(1306) }
{ clinic(1479) use(1117) guidelin(835) }
{ data(1714) softwar(1251) tool(1186) }
{ control(1307) perform(991) simul(935) }
{ research(1085) discuss(1038) issu(1018) }
{ import(1318) role(1303) understand(862) }
{ spatial(1525) area(1432) region(1030) }
{ signal(2180) analysi(812) frequenc(800) }
{ patient(1821) servic(1111) care(1106) }
{ health(1844) social(1437) communiti(874) }
{ survey(1388) particip(1329) question(1065) }
{ model(3404) distribut(989) bayesian(671) }
{ can(774) often(719) complex(702) }
{ data(1737) use(1416) pattern(1282) }
{ inform(2794) health(2639) internet(1427) }
{ measur(2081) correl(1212) valu(896) }
{ imag(1057) registr(996) error(939) }
{ bind(1733) structur(1185) ligand(1036) }
{ network(2748) neural(1063) input(814) }
{ patient(2315) diseas(1263) diabet(1191) }
{ take(945) account(800) differ(722) }
{ studi(2440) review(1878) systemat(933) }
{ motion(1329) object(1292) video(1091) }
{ treatment(1704) effect(941) patient(846) }
{ surgeri(1148) surgic(1085) robot(1054) }
{ framework(1458) process(801) describ(734) }
{ problem(2511) optim(1539) algorithm(950) }
{ chang(1828) time(1643) increas(1301) }
{ learn(2355) train(1041) set(1003) }
{ concept(1167) ontolog(924) domain(897) }
{ extract(1171) text(1153) clinic(932) }
{ design(1359) user(1324) use(1319) }
{ care(1570) inform(1187) nurs(1089) }
{ general(901) number(790) one(736) }
{ method(984) reconstruct(947) comput(926) }
{ search(2224) databas(1162) retriev(909) }
{ featur(1941) imag(1645) propos(1176) }
{ case(1353) use(1143) diagnosi(1136) }
{ howev(809) still(633) remain(590) }
{ studi(1410) differ(1259) use(1210) }
{ risk(3053) factor(974) diseas(938) }
{ perform(999) metric(946) measur(919) }
{ model(2341) predict(2261) use(1141) }
{ visual(1396) interact(850) tool(830) }
{ compound(1573) activ(1297) structur(1058) }
{ perform(1367) use(1326) method(1137) }
{ blood(1257) pressur(1144) flow(957) }
{ record(1888) medic(1808) patient(1693) }
{ health(3367) inform(1360) care(1135) }
{ model(3480) simul(1196) paramet(876) }
{ monitor(1329) mobil(1314) devic(1160) }
{ ehr(2073) health(1662) electron(1139) }
{ state(1844) use(1261) util(961) }
{ research(1218) medic(880) student(794) }
{ patient(2837) hospit(1953) medic(668) }
{ data(2317) use(1299) case(1017) }
{ age(1611) year(1155) adult(843) }
{ medic(1828) order(1363) alert(1069) }
{ sampl(1606) size(1419) use(1276) }
{ gene(2352) biolog(1181) express(1162) }
{ first(2504) two(1366) second(1323) }
{ intervent(3218) particip(2042) group(1664) }
{ activ(1138) subject(705) human(624) }
{ time(1939) patient(1703) rate(768) }
{ can(981) present(881) function(850) }
{ analysi(2126) use(1163) compon(1037) }
{ high(1669) rate(1365) level(1280) }
{ cancer(2502) breast(956) screen(824) }
{ use(976) code(926) identifi(902) }
{ use(1733) differ(960) four(931) }
{ drug(1928) target(777) effect(648) }
{ result(1111) use(1088) new(759) }
{ implement(1333) system(1263) develop(1122) }
{ estim(2440) model(1874) function(577) }
{ decis(3086) make(1611) patient(1517) }
{ activ(1452) weight(1219) physic(1104) }
{ method(1969) cluster(1462) data(1082) }
{ method(2212) result(1239) propos(1039) }

Resumo

Because of the outstanding contribution in improving compression efficiency, block-based quantization has been widely accepted in state-of-the-art image/video coding standards. However, false contour artifacts are introduced, which result in reducing the fidelity of the decoded image/video especially in terms of subjective quality. In this paper, a block-based decontouring method is proposed to reduce the false contour artifacts in the decoded image/video by automatically dithering its direct current (DC) value according to a composite model established between gradient smoothness and block-edge smoothness. Feature points on the model with the corresponding criteria in suppressing contour artifacts are compared to show a good consistency between the model and the actual processing effects. Discrete cosine transform (DCT)-based block level contour artifacts detection mechanism ensures the blocks within the texture region are not affected by the DC dithering. Both the implementation method and the algorithm complexity are analyzed to present the feasibility in integrating the proposed method into an existing video decoder on an embedded platform or system-on-chip (SoC). Experimental results demonstrate the effectiveness of the proposed method both in terms of subjective quality and processing complexity in comparison with the previous methods.

Resumo Limpo

outstand contribut improv compress effici blockbas quantiz wide accept stateoftheart imagevideo code standard howev fals contour artifact introduc result reduc fidel decod imagevideo especi term subject qualiti paper blockbas decontour method propos reduc fals contour artifact decod imagevideo automat dither direct current dc valu accord composit model establish gradient smooth blockedg smooth featur point model correspond criteria suppress contour artifact compar show good consist model actual process effect discret cosin transform dctbase block level contour artifact detect mechan ensur block within textur region affect dc dither implement method algorithm complex analyz present feasibl integr propos method exist video decod embed platform systemonchip soc experiment result demonstr effect propos method term subject qualiti process complex comparison previous method

Resumos Similares

Comput Math Methods Med - Segmentation of choroidal boundary in enhanced depth imaging OCTs using a multiresolution texture based modeling in graph cuts. ( 0,773951125086512 )
IEEE Trans Image Process - Nonlocal transform-domain filter for volumetric data denoising and reconstruction. ( 0,74590169093139 )
J Digit Imaging - Dual-pass feature extraction on human vessel images. ( 0,736903010991517 )
J Clin Monit Comput - A comparison of two algorithms for automated stone detection in clinical B-mode ultrasound images of the abdomen. ( 0,729840587249806 )
IEEE Trans Image Process - Adaptive regularization of the NL-means: application to image and video denoising. ( 0,729580583736318 )
J Med Syst - An image processing application for the localization and segmentation of lymphoblast cell using peripheral blood images. ( 0,722821592258575 )
Comput. Biol. Med. - Fully automated gradient based breast boundary detection for digitized X-ray mammograms. ( 0,719590372030443 )
Comput Math Methods Med - An improved FCM medical image segmentation algorithm based on MMTD. ( 0,718339116898684 )
IEEE Trans Image Process - An efficient MRF embedded level set method for image segmentation. ( 0,713185300181433 )
IEEE Trans Image Process - A new color filter array with optimal properties for noiseless and noisy color image acquisition. ( 0,712918915035404 )
IEEE Trans Image Process - Unified framework for automated iris segmentation using distantly acquired face images. ( 0,703486133914851 )
Comput. Biol. Med. - Estimation of the breast skin-line in mammograms using multidirectional Gabor filters. ( 0,702985834360529 )
IEEE Trans Image Process - Image denoising with 2D scale-mixing complex wavelet transforms. ( 0,70071646197911 )
IEEE Trans Image Process - Ultrasound despeckling for contrast enhancement. ( 0,697700832873347 )
Comput. Biol. Med. - Boundary detection in carotid ultrasound images using dynamic programming and a directional Haar-like filter. ( 0,69155129637265 )
IEEE Trans Image Process - Improved block truncation coding using optimized dot diffusion. ( 0,688363484813844 )
Med Biol Eng Comput - Exploiting sparsity and low-rank structure for the recovery of multi-slice breast MRIs with reduced sampling error. ( 0,687119673519788 )
J Am Med Inform Assoc - Multiscale segmentation of the skull in MR images for MRI-based attenuation correction of combined MR/PET. ( 0,685716405580428 )
IEEE Trans Image Process - Huber fractal image coding based on a fitting plane. ( 0,684721867664201 )
IEEE Trans Image Process - Saliency detection in the compressed domain for adaptive image retargeting. ( 0,68108380522625 )
Int J Comput Assist Radiol Surg - Patch-based label fusion segmentation of brainstem structures with dual-contrast MRI for Parkinson's disease. ( 0,679222689991244 )
IEEE Trans Image Process - Adaptive Perona-Malik model based on the variable exponent for image denoising. ( 0,675625363894818 )
IEEE Trans Image Process - Noise-resistant local binary pattern with an embedded error-correction mechanism. ( 0,675408065274354 )
Comput. Biol. Med. - Automated retinal layers segmentation in SD-OCT images using dual-gradient and spatial correlation smoothness constraint. ( 0,675123423286214 )
IEEE Trans Image Process - Adaptive fingerprint image enhancement with emphasis on preprocessing of data. ( 0,675040759872629 )
J Med Syst - Morphological multiscale enhancement, fuzzy filter and watershed for vascular tree extraction in angiogram. ( 0,673010543896473 )
Comput Math Methods Med - Improved DCT-based nonlocal means filter for MR images denoising. ( 0,671545768113984 )
Comput Methods Programs Biomed - Segmentation of cervical cell nuclei in high-resolution microscopic images: A new algorithm and a web-based software framework. ( 0,669687722346463 )
IEEE Trans Image Process - Mixed noise removal by weighted encoding with sparse nonlocal regularization. ( 0,668807457435702 )
Int J Comput Assist Radiol Surg - Usability of unbiased nonlocal means for de-noising intraoperative magnetic resonance images in neurosurgery. ( 0,668541191297167 )
Comput Math Methods Med - Ultrasound image enhancement using structure-based filtering. ( 0,662158159051364 )
IEEE Trans Image Process - Oriented modulation for watermarking in direct binary search halftone images. ( 0,658847443063245 )
Comput Math Methods Med - Vascular tree segmentation in medical images using Hessian-based multiscale filtering and level set method. ( 0,658539366162392 )
IEEE Trans Image Process - Edge-based perceptual image coding. ( 0,655658380815732 )
Comput Math Methods Med - Improving the performance of the prony method using a wavelet domain filter for MRI denoising. ( 0,654635537010739 )
IEEE Trans Pattern Anal Mach Intell - FAIR: a Fast Algorithm for Document Image Restoration. ( 0,654437296623361 )
Comput Methods Programs Biomed - Application of detector precision characteristics and histogram packing for compression of biological fluorescence micrographs. ( 0,653893991230751 )
IEEE Trans Image Process - Shadow removal using bilateral filtering. ( 0,653542488922104 )
Med Biol Eng Comput - Enhancement of the ultrasound images by modified anisotropic diffusion method. ( 0,653010203212353 )
IEEE Trans Image Process - Robust automatic rodent brain extraction using 3-D pulse-coupled neural networks (PCNN). ( 0,652963657786302 )
Comput. Biol. Med. - Breast cancer detection from MR images through an auto-probing discrete Fourier transform system. ( 0,652640206829369 )
J Med Syst - 3-D surface rendering of myocardial SPECT images segmented by level set technique. ( 0,650170499604249 )
IEEE Trans Image Process - Segmented gray-code kernels for fast pattern matching. ( 0,650164751450262 )
IEEE J Biomed Health Inform - Microarray image denoising using complex Gaussian scale mixtures of complex wavelets. ( 0,648757591600839 )
IEEE Trans Image Process - Optimal inversion of the generalized Anscombe transformation for Poisson-Gaussian noise. ( 0,647199279394652 )
Comput Math Methods Med - Nonlocal means-based denoising for medical images. ( 0,64510544495699 )
IEEE Trans Image Process - Probabilistic exposure fusion. ( 0,644977925744884 )
IEEE Trans Image Process - Image noise reduction via geometric multiscale ridgelet support vector transform and dictionary learning. ( 0,64373595818924 )
Comput. Biol. Med. - Fully automatic brain extraction algorithm for axial T2-weighted magnetic resonance images. ( 0,641610262201847 )
IEEE Trans Image Process - Automatic craniofacial structure detection on cephalometric images. ( 0,640465188907714 )
IEEE Trans Image Process - Hybrid no-reference natural image quality assessment of noisy, blurry, JPEG2000, and JPEG images. ( 0,640439426325038 )
IEEE Trans Image Process - Efficient reversible watermarking based on adaptive prediction-error expansion and pixel selection. ( 0,639550264516314 )
Comput Methods Programs Biomed - A marker-based watershed method for X-ray image segmentation. ( 0,638617362898619 )
IEEE Trans Image Process - JUDOCA: junction detection operator based on circumferential anchors. ( 0,636560285308275 )
IEEE Trans Image Process - Sparse texture active contour. ( 0,636353453829249 )
Comput. Biol. Med. - Prioritization of brain MRI volumes using medical image perception model and tumor region segmentation. ( 0,635483377033805 )
IEEE Trans Image Process - LLSURE: local linear SURE-based edge-preserving image filtering. ( 0,633622488429208 )
IEEE Trans Image Process - Myocardial motion estimation from medical images using the monogenic signal. ( 0,632691160298642 )
IEEE Trans Image Process - An edge-sensing generic demosaicing algorithm with application to image resampling. ( 0,632609588923019 )
Comput Math Methods Med - Distributed reconstruction via alternating direction method. ( 0,632441158897261 )
Comput Math Methods Med - Feature and contrast enhancement of mammographic image based on multiscale analysis and morphology. ( 0,631690939541989 )
AMIA Annu Symp Proc - Window classification of brain CT images in biomedical articles. ( 0,628734750859245 )
IEEE Trans Image Process - Nonlocal image editing. ( 0,628722915575998 )
IEEE Trans Image Process - Anisotropic diffusion filter with memory based on speckle statistics for ultrasound images. ( 0,628685766148988 )
IEEE Trans Image Process - Scanned image descreening with image redundancy and adaptive filtering. ( 0,628202325561926 )
Comput Methods Programs Biomed - Efficient inhomogeneity compensation using fuzzy c-means clustering models. ( 0,627850944784686 )
IEEE Trans Image Process - Interactive image segmentation using Dirichlet process multiple-view learning. ( 0,62684543717932 )
Comput Methods Programs Biomed - Supervised restoration of degraded medical images using multiple-point geostatistics. ( 0,626802701858147 )
IEEE Trans Image Process - Sharing visual secrets in single image random dot stereograms. ( 0,625886546384032 )
Comput Math Methods Med - An approach for the visualization of temperature distribution in tissues according to changes in ultrasonic backscattered energy. ( 0,624507709193606 )
Comput Methods Programs Biomed - Wavelet-based de-noising techniques in MRI. ( 0,623547506631695 )
IEEE Trans Image Process - Onboard low-complexity compression of solar stereo images. ( 0,621051905498339 )
IEEE Trans Image Process - Image fusion with guided filtering. ( 0,620754093781864 )
Comput Math Methods Med - Coronary artery center-line extraction using second order local features. ( 0,620535442828826 )
IEEE Trans Image Process - Bi-exponential edge-preserving smoother. ( 0,619728773793798 )
Comput Math Methods Med - A fusion algorithm for GFP image and phase contrast image of Arabidopsis cell based on SFL-contourlet transform. ( 0,618481503136751 )
Int J Comput Assist Radiol Surg - Left ventricular myocardium segmentation on delayed phase of multi-detector row computed tomography. ( 0,61821506517227 )
Comput. Biol. Med. - Segmentation of female pelvic organs in axial magnetic resonance images using coupled geometric deformable models. ( 0,61702325047465 )
IEEE Trans Image Process - A new scheme for robust gradient vector estimation in color images. ( 0,616859628810422 )
IEEE Trans Image Process - Noise reduction based on partial-reference, dual-tree complex wavelet transform shrinkage. ( 0,616668444836603 )
Comput. Biol. Med. - Unsupervised tumour segmentation in PET using local and global intensity-fitting active surface and alpha matting. ( 0,616607301950038 )
IEEE Trans Image Process - Robust carotid artery recognition in longitudinal B-mode ultrasound images. ( 0,615990149840843 )
Comput Math Methods Med - Retinal image graph-cut segmentation algorithm using multiscale Hessian-enhancement-based nonlocal mean filter. ( 0,613988675200185 )
IEEE Trans Image Process - Fusion of median and bilateral filtering for range image upsampling. ( 0,613139706997272 )
IEEE Trans Image Process - Optimizing the error diffusion filter for blue noise halftoning with multiscale error diffusion. ( 0,612986981725883 )
IEEE Trans Image Process - Fourier transform based scalable image quality measure. ( 0,612636921882438 )
IEEE Trans Image Process - Adaptive quantization-parameter clip scheme for smooth quality in H.264/AVC. ( 0,612625871433306 )
J Med Syst - Computer assisted diagnostic system in tumor radiography. ( 0,61257506868358 )
IEEE Trans Image Process - Symmetric smoothing filters from global consistency constraints. ( 0,611870631077707 )
IEEE Trans Image Process - Multiple descriptions coinciding lattice vector quantizer for wavelet image coding. ( 0,610398121757623 )
IEEE Trans Image Process - Commutability of blur and affine warping in super-resolution with application to joint estimation of triple-coupled variables. ( 0,609750751901549 )
Comput. Biol. Med. - EEG-based motor imagery classification using enhanced active segment selection and adaptive classifier. ( 0,609396260703506 )
IEEE Trans Image Process - Fast 2-D distance transformations. ( 0,608787777016364 )
IEEE Trans Image Process - 3D steerable wavelets in practice. ( 0,608281876007266 )
Int J Comput Assist Radiol Surg - Wavelet denoising for quantum noise removal in chest digital tomosynthesis. ( 0,608235572804674 )
IEEE Trans Image Process - Joint color decrosstalk and demosaicking for CFA cameras. ( 0,608232951716376 )
IEEE Trans Image Process - Detail-enhanced exposure fusion. ( 0,607414884161601 )
IEEE Trans Image Process - Efficient improvements on the BDND filtering algorithm for the removal of high-density impulse noise. ( 0,607166914300804 )
IEEE Trans Image Process - New families of Fourier eigenfunctions for steerable filtering. ( 0,60701395266658 )
IEEE Trans Image Process - Artifact removal for GLS map makers by means of post-processing. ( 0,605747041632764 )