optical amplifiers for analog video transmission

... terms of the system performance and video quality for all video categories ATMV1 is suitable for the slight movement video and can support up to concurrent flows However, the video quality has been ... requested TSPEC The details of other videos can be seen in Table 4.3 Video quality evaluation Video Receiver QAP Video Sender #1 QSTA1 ããã ããã QSTA2 Video Sender #2 Video Sender Figure Configuration ... Container (d) Coastguard (c) Foreman (e) Highway Figure Selected videos for performance evaluation While MOS (mean opinion score) is one of the popular metrics [19] for video quality measurement,...

Ngày tải lên: 20/06/2014, 22:20

... protocols for video transmission to better utilize system resources for performance improvement Moreover, because of the broadcast nature of the phase in cooperative transmission, the source information ... (3D-SPIHT) video coding [16], the proposed cooperative video transmission protocol has a significant PSNR gain over the traditional direct video transmission Especially by employing the cooperative video ... employing the cooperative video transmission with side information, we have obtained up to dB gain over the amplify-and-forward or decode-and-forward protocols For the multiuser case, we concentrate...

Ngày tải lên: 21/06/2014, 20:20

... minimising the overall transmission video distortion has been presented for low-latency video transmission Models were used to estimate the local rate distortion performance at the video encoder and ... without regard for delay and retransmission For video transmission where a strong reliance on ARQ is not desirable, a completely error-free communication is not essential when robust video compression ... Actual transmission Estimated transmission (current rate) Estimated transmission (from lower rate) Estimated transmission (from higher rate) Actual lower rate Actual higher rate Actual transmission...

Ngày tải lên: 22/06/2014, 01:20

... also be used as a forward error correction (FEC) mechanism This idea has been initially suggested in [2] for analog transmission enhanced with WZencoded digital information The analog version serves ... 200 kBit/s for Hall Monitor and 80, 100, 150, 200, 250, 500, and 1000 kBit/s for Foreman Figures 18 and 19 show the performances of the 3B F-DMDC scheme at the central decoder for Foreman and ... performances of the 3B F-DMDC scheme at the side decoder This time, the 3B F-DMDC scheme slightly outperforms the 3B MDC scheme with or without extra information, especially for Foreman and for...

Ngày tải lên: 22/06/2014, 19:20

... delay for a specified data flow In the video server, MPEG video sequences were transmitted to the video receiver using the VideoLAN Server (VLS) [35] FEC-on-TQM EMs were constructed in the video ... payload format for generic forward error correction,” Internet Draft draft-ietf-avt-ulp-18, IETF, work in progress, June 2006 [32] J Rosenberg and H Schulzrinne, “An RTP payload format for generic forward ... temporal scaling approach, the video frames with less importance level are discarded before transmission to match the available TCP-friendly transmission rate For instance, the frame discarding...

Ngày tải lên: 22/06/2014, 19:20

... subjective quality of the video sequence, Figure 4a shows the 44th frame of the (a) R-D Curve for Akiyo (b) R-D Curve for Claire (c) R-D Curve for Carphone (d) R-D Curve for Foreman Figure R-D curves ... fully utilize FMO for low bit rate video transmission, the trade-offs must be considered in the Page of 11 operation of the rate control The video encoder rate control is responsible for allocating ... control (a) Comparison of PSNR for Carphone, 32 kbps, FMO8 (a) Foreman sequence using the proposed method (b) Comparison of PSNR for Foreman, 32 kbps, FMO8 (b) Foreman sequence using JM rate...

Ngày tải lên: 20/06/2014, 22:20

... JSCC approach Many video applications belong to the video streaming category involving prestored video, while the other category is real-time interactive video application For the video streaming ... with M = 2m , for example, for 8-PSK, M = 8, and m = For the information in the enhancement layer (i.e., the encoder output component sent using the fine modulation of the nonuniform MPSK constellation) ... error concealment for video In Section 3, we briefly describe the channel models used and provide the performance analysis for the coded and uncoded systems employing nonuniform MPSK over Rician...

Ngày tải lên: 22/06/2014, 19:20

... Figure 1: Communication chain for video transmission 2.1 Scalable video coding The scalable video codec considered in this paper is based on the wavelet transform performed in temporal and spatial ... condition is critical for the overall performance of JSCC Furthermore, the performance of the DBTC is also significantly influenced by its packet size For example, the performance of DBTC with ... optimize the overall system performance subject to a constraint on the overall transmission bitrate budget As mentioned before, a more effective error resilient video transmission can be achieved...

Ngày tải lên: 22/06/2014, 19:20

... Motion information γ(t) averaged over the underlying GoP 2.2.2 Advanced video trace entries For each video frame t, we add three parameter values to the existing video traces (1) The motion information ... methodology for shots of motion activity is higher than for the other shot activity levels The average accuracy for video programs such as Tonight Show is better than that for other video programs ... Original video sequence Video Conventional encoding video trace Advanced video trace Quality predictor Reconstructed quality Visual content Visual descriptors analysis Figure 1: Proposed advanced video...

Ngày tải lên: 22/06/2014, 23:20

... The SARC Protocol for Multicast Layered Video Transmission Layered transmission has been proposed to cope with receivers heterogeneity [1, ... congestion and loss control mechanism for multicast layered video transmission is described The strategy relies on a mechanism that aggregates feedback information in the networks nodes However, ... layered rate controller and the FEC module For each video sequence prestored on the server, we have two separate bitstreams (i.e., one for BL and one for EL) coupled with its respective descriptors...

Ngày tải lên: 23/06/2014, 01:20

... resulted from the transmission of “Foreman” sequence with different number of slices per video frame in high-error channel … …………47 4.4 PSNR performances resulted from the transmission of “Foreman” sequence ... requirement for wireless transmission, the video data are usually compressed prior to transmission This compressed video Chapter Introduction data are error sensitive so that it poses many challenges for ... and packet loss) of video applications With a best-effort approach, the current IP core network was originally designed for data transmission, which has no guarantee of QoS for video applications...

Ngày tải lên: 26/09/2015, 11:07

... telephone network (PSTN) for voice and video (BRI), and a T1 between locations for data-only traffic Figure 1.2 An Existing Infrastructure Before an AVVID Implementation Video Conferencing BRI T1 ... convert your video network, which is usually H.320, into an Ethernet standard for video, which is H.323 The H.320 to H.323 conversion can be performed by implementing a device called a Video Terminal ... business! AVVID—An Architecture of Voice, Video, and Integrated Data AVVID is, quite simply, a Cisco Systems, Inc acronym that stands for Architecture for Voice, Video, and Integrated Data In practical...

Ngày tải lên: 21/12/2013, 06:16

... sensitivity for biosensors as well as depth-gating capabilities to optically section living tissue Optical Interferometry for Biology and Medicine presents the physical principles of optical interferometry ... by the optical properties of biomolecules, and by the optical properties of the parts of the cell The structure and dynamics of the cell are also key players in many optical experiments For these ... for integrated on-chip waveguide interferometers, and for fiber-based interferometers Integrated optical interferometers have much more stable path differences and phase bias than free-space optical...

Ngày tải lên: 05/03/2014, 10:20

... Programs for TB Support Surveillance and Clinical Care TB screening programs provide critical information for caring for individual HCWs and information that facilitates detection of M tuberculosis transmission ... policies should include appropriate screening for LTBI and TB disease for dental HCWs, education on the risk for transmission to the dental HCWs, and provisions for 25 detection and management of patients ... Treatment for LTBI or TB Disease Additional tests for M tuberculosis infection not need to be performed for HCWs with a documented history of TB disease, documented previously positive test result for...

Ngày tải lên: 06/03/2014, 04:20

... are as follows; Mes for pH 6.0, Hepes for pH 7.0, Tris for pH 8.0 and 9.0, TAPS for pH 10.0 The reaction was incubated for 24 h with I-CsmI(237) and I-CsmI(200), and incubated for h with I-CsmI(217), ... parasitic elements that exhibit horizontal transmission Regular invasional transmission is likely essential for both homing introns and inteins In fact, for the target site of intein homing endonuclease ... discuss the adaptation for successful horizontal transfer Investigations performed for the intronic homing enzymes that have a recognition sequence in ribosomal RNA genes are less informative to answer...

Ngày tải lên: 07/03/2014, 17:20

... numbers, 75% of the samples were used for training and 25% for testing and the performance of each classifier is presented in Table 3.1 Table Labelled data for each class generated from matches ... covariance matrices were constrained to be diagonal for each individual mixture For each mixture number, Fig 2, there was a ‘levelling off’ in performance at approximately states Increasing the number ... report, forming the ground truth against which our system could be compared The match reports also indicated approximate time points for each event, which aided this process Using this information,...

Ngày tải lên: 23/03/2014, 13:20

... determining the form of transformation performed by any electron device 2.1 Introduction Operational amplifiers serve basic elements for various electron devices, which perform different transformations ... phase-response (PRC) characteristics should have a certain form, providing for some marginal stability Therefore, the op-amp GFC is corrected For example, for correction of the K157UD2 amplifier, the circuit ... Therefore, it suits for computations as a PSpice macromodel in the Electronics Workbench and DesignLab software Such a model can be easily constructed not only for the VCCS structure, but also for...

Ngày tải lên: 31/03/2014, 18:20

... (S3D) Video 6.2.2 Multiview Video (MVV) 6.2.3 Video- Plus-Depth 6.2.4 Multiview Video- Plus-Depth (MVD) 6.2.5 Layered Depth Video (LDV) 6.3 Three-Dimensional Video Formats 6.3.1 Simulcast 6.3.2 ... Chichester, West Sussex, PO19 8SQ, United Kingdom For details of our global editorial offices, for customer services and for information about how to apply for permission to reuse the copyright material ... as video games, immersive video conferences, medicine, video surveillance, and engineering With this growing interest, 3D video is often considered as one of the major upcoming innovations in video...

Ngày tải lên: 05/05/2014, 13:32

... standard for analog- to-digital video editing NTSC DV and DVD image dimensions NTSC SD video dimensions used for professional digital formats such as Digital Betacam, D-1, and D-5 PAL SD video dimensions ... and D-5 PAL SD video dimensions used for digital formats such as Digital Betacam, D-1, and D-5 as well as DVD and DV HD video format Higher-resolution HD video format Cineon half resolution Cineon ... format? If your title sequence requires the use of previously shot video or film footage, you must find out its source format What is the deliverable format? Knowing the destination and platform...

Ngày tải lên: 30/05/2014, 23:22

... Optical Amplifiers for Passive Optical Networks 405 Ken-Ichi Suzuki Chapter 19 Cascaded Nonlinear Optical Mixing in a Noncollinear Optical Parametric Amplifier 423 Chao-Kuei Lee VII Preface Optical ... Miliou and Nikos Pleros Part Semiconductor Optical Amplifiers: Wavelength Converters 79 Chapter Semiconductor Optical Amplifiers and their Application for All Optical Wavelength Conversion 81 Oded ... Advances in Optical Amplifiers and to provide a good signal quality for transmission over any path in all -optical networks Sartorius (2001), Zhu (2007), Leem (2006), Kanellos (2007) Optical regeneration...

Ngày tải lên: 19/06/2014, 23:20