Tài liệu 53 Image and Video Restoration pdf

... in Section 53. 4.3. Adaptive restoration for ringing suppression and blind restoration are covered in Sections 53. 4.4 and 53. 4.5,respectively. Restoration of multispectral images and space-varyingblurred ... LLCImageandVideoRestorationA.MuratTekalpUniversityofRochester 53. 1Introduction 53. 2ModelingIntra-FrameObservationModel•MultispectralObserva-tionModel•MultiframeObservationModel•RegularizationModels 53. 3ModelParameterEstimationBlurIdentification•EstimationofRegularizationParameters•EstimationoftheNoiseVariance 53. 4Intra-FrameRestorationBasicRegularizedRestorationMethods•RestorationofIm-agesRecordedbyNonlinearSensors•RestorationofImagesDegradedbyRandomBlurs•AdaptiveRestorationforRing-ingReduction•BlindRestoration(Deconvolution)•Restora-tionofMultispectralImages•RestorationofSpace-VaryingBlurredImages 53. 5MultiframeRestorationandSuperresolutionMultiframeRestoration•Superresolution•SuperresolutionwithSpace-VaryingRestoration 53. 6ConclusionReferences 53. 1 IntroductionDigitalimagesandvideo,acquiredbystillcameras,consumercamcorders,orevenbroadcast-qualityvideocameras,areusuallydegradedbysomeamountofblurandnoise.Inaddition,mostelectroniccamerashavelimitedspatialresolutiondeterminedbythecharacteristicsofthesensorarray.Commoncausesofblurareout-of-focus,relativemotion,andatmosphericturbulence.Noisesourcesincludefilmgrain,thermal,electronic,andquantizationnoise.Further,manyimagesensorsandmediahaveknownnonlinearinput-outputcharacteristicswhichcanberepresentedaspointnonlinearities.Thegoalofimageandvideo(imagesequence)restorationistoestimateeachimage(frameorfield)asitwouldappearwithoutanydegradations,byfirstmodelingthedegradationprocess,andthenapplyinganinverseprocedure.Thisisdistinctfromimageenhancementtechniqueswhicharedesignedtomanipulateanimageinordertoproducemorepleasingresultstoanobserverwithoutmakinguseofparticulardegradationmodels.Ontheotherhand,superresolutionreferstoestimatinganimageataresolutionhigherthanthatoftheimagingsensor.Imagesequencefiltering (restoration andsuperresolution)becomesespeciallyimportantwhenstillimagesfromvideoaredesired.Thisisbecausetheblurandnoisecanbecomeratherobjectionablewhenobservinga“freeze-frame”,althoughtheymaynotbevisibletothehumaneyeattheusualframerates.Sincemanyvideosignalsencounteredinpracticeareinterlaced,weaddressthecasesofbothprogressiveandinterlacedvideo.c1999byCRCPressLLCTheproblemofimagerestorationhassparkedwidespreadinterestinthesignalprocessingcommu-nityoverthe ... Y.,Recursivehigh-resolutionreconstructionofblurredmultiframeimages,IEEE Trans. Image Proc., 2(4), 534 539 , 1993.[84] Irani, M. and Peleg, S., Improving resolutionbyimage registration,CVGIP: Graphical Models and Image Proc., 53, 231–239,...

... consulting and computer/web based testing. They market a cognitive ability /personality system (ASSESS) which can be used for selection or development. Cognitive tests are Watson-Glaser and Raven's ... in-house. Two-thirds of BHA's employees are designers and programmers. BHA's strategy is to grow by adding to its product line- and several are close to completion. Example: Job Tango ... the personality demands of different types of jobs. BHA has job requirements profiled from their knowledge base. The person assesses themself on those same characteristics and compares their...

... Do video không nén chiếm một dung lượng ổ cứng rất lớn nên người ta nghĩ ra nhiều kiểu nén video khác nhau để giảm dung lượng, thuật toán nén gọi nôm na là Codec, Chất lượng của digital video ... có thể chứa được 1 giờ video trên 1 dĩa DVD dung lượng 4,7GB Máy quay sử dụng băng DV nén video theo chuẩn DV25 với bitrate 25Mbps 1 cuộn băng miniDV chứa được 1 giờ Video và có dung lượng ... Full Screen video, ở mục full screen video controls chọn second display, click ok. đến đây hoàn thành bước setup cho VGA, để test bạn thử dùng windows media player play 1 file video nào đó,...

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... circuits provide demonstrations of the major features on the board, such as its audio and video capabilities, and USB and Ethernet connectivity. For each demonstration the Cyclone II FPGA (or EPCS16 ... graphical interface is used to issue commands to the control circuitry. The provided IP handles all requests and performs data transfers between the computer and the DE2 board. DE2 User Manual ... 8 power and ground lines, are brought out to two 40-pin expansion connectors • 40-pin header is designed to accept a standard 40-pin ribbon cable used for IDE hard drives • Diode and resistor...

... $35,968Costs and expenses:Cost of sales 23,045 20,255 23,438Sales and marketing 7,476 7,261 6,840Research and development 5,043 5,105 3,323General and administrative 1,9511,788 1,722Total cost and ... and accounts re-ceivable.• Inventories: Kmart is a retailer of consumer products and maintains inventories of merchandise in regional ware-houses and retail stores. HBO is a service firm and, ... producer and supplier of natural gas and petroleum-based prod-ucts. Its condensed statements of operations for the first quarters of 1998 and 1999 are shown below (dollars in thousands):1999...

... lab, you configure both IBGP and EBGP. In order for IBGP peers to correctly exchange routing information, you must also use the next-hop-self and aggregate-address commands. Scenario The International ... BGP internally between two of its routers, ISP1A and ISP1B. Your job is to configure both EBGP and IBGP for this internetwork. Step 1 Build and configure the network according to the diagram, ... update-source lo0 command instructs the router to use interface loopback 0 for TCP connections. This command is typically used in all IBGP configurations. Without this command, BGP routers can...

... FORmula TRANslation. This language is used for solving scientific and mathematical problems. It consists of algebraic formulae and English phrases. It was first introduced in the United States ... used for mathematical and scientific purposes. ALGO was first introduced in Europe in 1960. PL/1 Programming Language 1. Developed in 1964 to combine features of COBOL and ALGOL. Consequently, ... language to begin programming. Other such langauges are APL (developed in 1962) and PASCAL (named after Blaise Pascal and developed in 1971) When a program written in one of these high-level...

... Publications (London, Thousand Oaks, CA and New Delhi)ever developed (Fukuyama, 1992) and the economic growth and efficiency thatappears to sustain it.We attempt to enhance the understanding of the indirect ... Economies 6: 335–76.Schmitter, Philippe C. and Karl, Terry Lynn (1991). “What Democracy Is . . . And Is Not,”Journal of Democracy, summer 75–88.Shleifer, Andrei and Vishny, Robert W. (1993). “Corruption,” ... richer societies have undergone substantial political and socialmodernization, and are hence more likely to be simultaneously democratic and lesscorrupt.6. Kurzman et al. (2002), for instance,...

... Populate DropDown and ListBox Controls I saw in this chapter's first How-To how to bind a ListBox control to a dataset that was created in the design. How do I populate DropDown and ListBox ... controls. Steps Open and run the Visual Basic .NET-Chapter 5 solution. From the main page, click on the hyperlink with the caption How-To 5.3: Populate DropDown and ListBox controls. When ... BuildCnnStr, the function can been seen in Listing 5.5. This function takes a server and database name passed to it and creates a connection string. Listing 5.5 modGeneralRoutines.vb: Creating a...