IEEE Trans Image Process - Two-dimensional orthogonal DCT expansion in trapezoid and triangular blocks and modified JPEG image compression.

Tópicos

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

Resumo

In the conventional JPEG algorithm, an image is divided into eight by eight blocks and then the 2-D DCT is applied to encode each block. In this paper, we find that, in addition to rectangular blocks, the 2-D DCT is also orthogonal in the trapezoid and triangular blocks. Therefore, instead of eight by eight blocks, we can generalize the JPEG algorithm and divide an image into trapezoid and triangular blocks according to the shapes of objects and achieve higher compression ratio. Compared with the existing shape adaptive compression algorithms, as we do not try to match the shape of each object exactly, the number of bytes used for encoding the edges can be less and the error caused from the high frequency component at the boundary can be avoided. The simulations show that, when the bit rate is fixed, our proposed algorithm can achieve higher PSNR than the JPEG algorithm and other shape adaptive algorithms. Furthermore, in addition to the 2-D DCT, we can also use our proposed method to generate the 2-D complete and orthogonal sine basis, Hartley basis, Walsh basis, and discrete polynomial basis in a trapezoid or a triangular block.

Resumo Limpo

convent jpeg algorithm imag divid eight eight block d dct appli encod block paper find addit rectangular block d dct also orthogon trapezoid triangular block therefor instead eight eight block can general jpeg algorithm divid imag trapezoid triangular block accord shape object achiev higher compress ratio compar exist shape adapt compress algorithm tri match shape object exact number byte use encod edg can less error caus high frequenc compon boundari can avoid simul show bit rate fix propos algorithm can achiev higher psnr jpeg algorithm shape adapt algorithm furthermor addit d dct can also use propos method generat d complet orthogon sine basi hartley basi walsh basi discret polynomi basi trapezoid triangular block

Resumos Similares

IEEE Trans Image Process - Efficient multiview depth coding optimization based on allowable depth distortion in view synthesis. ( 0,86606997966213 )
IEEE Trans Image Process - Regional bit allocation and rate distortion optimization for multiview depth video coding with view synthesis distortion model. ( 0,864860415960084 )
IEEE Trans Image Process - Fingerprint Compression Based on Sparse Representation. ( 0,861885788556325 )
IEEE Trans Vis Comput Graph - Autostereoscopic 3D Display with Long Visualization Depth using Referential Viewing Area based Integral Photography. ( 0,857181925345652 )
IEEE Trans Image Process - Direction-adaptive partitioned block transform for color image coding. ( 0,856848790973342 )
IEEE Trans Image Process - Depth no-synthesis-error model for view synthesis in 3-D video. ( 0,856396493649091 )
IEEE Trans Image Process - Smoothlets--multiscale functions for adaptive representation of images. ( 0,846563887904168 )
IEEE Trans Image Process - High efficiency 3D video coding using new tools based on view synthesis. ( 0,837317858879824 )
IEEE Trans Image Process - Sliding-window raptor codes for efficient scalable wireless video broadcasting with unequal loss protection. ( 0,835774972421853 )
IEEE Trans Image Process - Context coding of depth map images under the piecewise-constant image model representation. ( 0,833062813792045 )
IEEE Trans Image Process - A novel fractal image compression scheme with block classification and sorting based on Pearson's correlation coefficient. ( 0,832968192935925 )
IEEE Trans Image Process - Multiview-video-plus-depth coding based on the advanced video coding standard. ( 0,831439611770482 )
IEEE Trans Image Process - domain rate control algorithm for high efficiency video coding. ( 0,828940135693024 )
IEEE Trans Image Process - Image deblurring and super-resolution by adaptive sparse domain selection and adaptive regularization. ( 0,828630263442997 )
IEEE Trans Image Process - Enhanced compressed sensing recovery with level set normals. ( 0,828341563378281 )
IEEE Trans Image Process - Rate control scheme for consistent video quality in scalable video codec. ( 0,826725878810207 )
IEEE Trans Image Process - An innovative lossless compression method for discrete-color images. ( 0,823604071000657 )
IEEE Trans Image Process - Intra prediction based on Markov process modeling of images. ( 0,823499172960384 )
IEEE Trans Image Process - Arbitrarily shaped motion prediction for depth video compression using arithmetic edge coding. ( 0,819849763747358 )
IEEE Trans Image Process - Learning doubly sparse transforms for images. ( 0,818544003715678 )
IEEE Trans Image Process - Mode-dependent templates and scan order for H.264/AVC-based intra lossless coding. ( 0,817782939343191 )
Comput Math Methods Med - Improved compressed sensing-based algorithm for sparse-view CT image reconstruction. ( 0,817460317460317 )
IEEE Trans Image Process - Rate-distortion optimized rate control for depth map-based 3-D video coding. ( 0,816452969483094 )
IEEE Trans Image Process - Resolution scalable image coding with reversible cellular automata. ( 0,814906227743605 )
IEEE Trans Image Process - Affine Legendre moment invariants for image watermarking robust to geometric distortions. ( 0,809874780009365 )
IEEE Trans Image Process - Real-time scalable depth sensing with hybrid structured light illumination. ( 0,80769909100394 )
IEEE Trans Image Process - Image super-resolution via sparse representation. ( 0,804023578289436 )
IEEE Trans Image Process - Single-image super-resolution reconstruction via learned geometric dictionaries and clustered sparse coding. ( 0,802007325185789 )
Comput. Biol. Med. - Medical ultrasound image compression using contextual vector quantization. ( 0,80051438011301 )
IEEE Trans Image Process - A New Pansharpening Method Based on Spatial and Spectral Sparsity Priors. ( 0,800452600107289 )
IEEE Trans Image Process - Dual-geometric neighbor embedding for image super resolution with sparse tensor. ( 0,798849651080345 )
IEEE Trans Image Process - High-resolution imaging via moving random exposure and its simulation. ( 0,795522241176021 )
IEEE Trans Image Process - Rotated orthogonal transform (ROT) for motion-compensation residual coding. ( 0,7938161203464 )
IEEE Trans Image Process - Directional filtering transform for image/intra-frame compression. ( 0,78860037234564 )
IEEE Trans Image Process - Color-guided depth recovery from RGB-D data using an adaptive autoregressive model. ( 0,787155826115826 )
IEEE Trans Pattern Anal Mach Intell - Estimation of Alpha Mattes for Multiple Image Layers. ( 0,785953142640468 )
IEEE Trans Image Process - Scanned compound document encoding using multiscale recurrent patterns. ( 0,785814695941738 )
IEEE Trans Image Process - Concatenated block codes for unequal error protection of embedded bit streams. ( 0,784261934676032 )
IEEE Trans Image Process - Video compressive sensing using Gaussian mixture models. ( 0,783388647164102 )
IEEE Trans Image Process - QR images: optimized image embedding in QR codes. ( 0,783154353282145 )
IEEE Trans Image Process - l2 Restoration of l8-decoded images via soft-decision estimation. ( 0,781759123547031 )
Comput Math Methods Med - Compressed sensing MR image reconstruction exploiting TGV and wavelet sparsity. ( 0,781696078534943 )
IEEE Trans Image Process - Improving various reversible data hiding schemes via optimal codes for binary covers. ( 0,780741254421105 )
IEEE Trans Image Process - Video quality pooling adaptive to perceptual distortion severity. ( 0,780729629475226 )
IEEE Trans Image Process - Theoretical analysis of view interpolation with inaccurate depth information. ( 0,77941027044522 )
IEEE Trans Image Process - Rank minimization code aperture design for spectrally selective compressive imaging. ( 0,779320987654321 )
IEEE Trans Image Process - Correspondence map-aided neighbor embedding for image intra prediction. ( 0,778811067658934 )
IEEE Trans Image Process - Multiresolution graph Fourier transform for compression of piecewise smooth images. ( 0,778594089002316 )
IEEE Trans Image Process - Modifying JPEG binary arithmetic codec for exploiting inter/intra-block and DCT coefficient sign redundancies. ( 0,77812276682902 )
Comput Math Methods Med - Accelerating Dynamic Cardiac MR imaging using structured sparse representation. ( 0,777215642094314 )
IEEE Trans Image Process - Learning component-level sparse representation for image and video categorization. ( 0,776530649390569 )
IEEE Trans Image Process - Compressive sensing of sparse tensors. ( 0,771753309571557 )
IEEE Trans Image Process - 1-D transforms for the motion compensation residual. ( 0,771470572119525 )
IEEE Trans Image Process - Scalable coding of depth maps with R-D optimized embedding. ( 0,77091533351809 )
IEEE Trans Image Process - An estimation-theoretic framework for spatially scalable video coding. ( 0,767329332451921 )
IEEE Trans Image Process - Monocular depth ordering using T-junctions and convexity occlusion cues. ( 0,766521355174224 )
IEEE Trans Pattern Anal Mach Intell - Stereo Seam Carving A Geometrically Consistent Approach. ( 0,765327639901966 )
IEEE Trans Image Process - Compression artifact reduction by overlapped-block transform coefficient estimation with block similarity. ( 0,765261402142139 )
IEEE Trans Image Process - On dependent bit allocation for multiview image coding with depth-image-based rendering. ( 0,763281808339968 )
IEEE Trans Image Process - Sparse/DCT (S/DCT) two-layered representation of prediction residuals for video coding. ( 0,763167244071863 )
IEEE Trans Image Process - Joint compression/watermarking scheme using majority-parity guidance and halftoning-based block truncation coding. ( 0,763118064137214 )
Comput. Biol. Med. - Super resolution SPECT reconstruction with non-uniform attenuation. ( 0,75948506127444 )
IEEE Trans Image Process - User-action-driven view and rate scalable multiview video coding. ( 0,758749187973298 )
IEEE Trans Image Process - Group-based sparse representation for image restoration. ( 0,758307534509955 )
IEEE Trans Image Process - Distributed representation of geometrically correlated images with compressed linear measurements. ( 0,756747824353132 )
IEEE Trans Image Process - A variational model for histogram transfer of color images. ( 0,756411505241567 )
IEEE Trans Image Process - Compressive source separation: theory and methods for hyperspectral imaging. ( 0,755212634651734 )
IEEE Trans Image Process - Plenoptic layer-based modeling for image based rendering. ( 0,754433536154318 )
IEEE Trans Image Process - Full-reference quality estimation for images with different spatial resolutions. ( 0,754129409749621 )
IEEE Trans Image Process - Visually lossless encoding for JPEG2000. ( 0,753689151625593 )
IEEE Trans Image Process - 2-Step scalar deadzone quantization for bitplane image coding. ( 0,752101433090355 )
IEEE Trans Pattern Anal Mach Intell - Compressive Structured Light for Recovering Inhomogeneous Participating Media. ( 0,75060811575516 )
IEEE Trans Image Process - Graph regularized sparse coding for image representation. ( 0,74900544544446 )
IEEE Trans Image Process - Simplified 2-D cubic spline interpolation scheme using direct computation algorithm. ( 0,748139293438685 )
IEEE Trans Image Process - Estimation-theoretic approach to delayed decoding of predictively encoded video sequences. ( 0,747231490492433 )
IEEE Trans Image Process - Nonseparable shearlet transform. ( 0,745390451065053 )
IEEE Trans Image Process - A flexible content-adaptive mesh-generation strategy for image representation. ( 0,745336869864672 )
IEEE Trans Image Process - Generalized PCM coding of images. ( 0,743898991087677 )
IEEE Trans Image Process - Adaptive image warping for hole prevention in 3D view synthesis. ( 0,743407513709368 )
IEEE Trans Image Process - Dictionary learning for stereo image representation. ( 0,742344313234717 )
Med Biol Eng Comput - NSCT-based multimodal medical image fusion using pulse-coupled neural network and modified spatial frequency. ( 0,742124240613727 )
IEEE Trans Image Process - Sparse feature fidelity for perceptual image quality assessment. ( 0,741178863066103 )
IEEE J Biomed Health Inform - SPIHT-based echocardiogram compression: clinical evaluation and recommendations of use. ( 0,741118592813143 )
IEEE Trans Image Process - Jointly optimized spatial prediction and block transform for video and image coding. ( 0,740563474904153 )
IEEE Trans Image Process - Automatic view synthesis by image-domain-warping. ( 0,739792893753962 )
IEEE Trans Image Process - Prediction of transmission distortion for wireless video communication: analysis. ( 0,738901441614364 )
IEEE Trans Image Process - Learning-based hierarchical graph for unsupervised matting and foreground estimation. ( 0,737494022203788 )
IEEE Trans Image Process - Joint registration and super-resolution with omnidirectional images. ( 0,736704441234706 )
IEEE Trans Image Process - Distributed multiple description video coding on packet loss channels. ( 0,733454575515419 )
IEEE Trans Image Process - Rate-distortion analysis of directional wavelets. ( 0,733393854631204 )
IEEE Trans Image Process - Text segmentation for MRC document compression. ( 0,732578656153449 )
IEEE Trans Image Process - Low distortion transform for reversible watermarking. ( 0,731126155013931 )
IEEE Trans Image Process - 3D high-efficiency video coding for multi-view video and depth data. ( 0,730818168213767 )
Comput Math Methods Med - A rate-distortion-based merging algorithm for compressed image segmentation. ( 0,730624838556127 )
IEEE Trans Image Process - Spread spectrum image watermarking based on perceptual quality metric. ( 0,729723082319518 )
IEEE Trans Image Process - Regularized robust coding for face recognition. ( 0,727150616119125 )
IEEE Trans Image Process - The discrete shearlet transform: a new directional transform and compactly supported shearlet frames. ( 0,726956345273087 )
IEEE Trans Image Process - Nonlocally centralized sparse representation for image restoration. ( 0,726698247302015 )
IEEE Trans Image Process - Multiview image coding using depth layers and an optimized bit allocation. ( 0,726317735485041 )
Neural Comput - Dependency reduction with divisive normalization: justification and effectiveness. ( 0,724640721154124 )