Error Resilient
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Error Concealment
Privacy Policy and User Agreement for details. SlideShare Explore Search You Upload Login Signup Home Technology Education More error resilience wikipedia Topics For Uploaders Get Started Tips & Tricks Tools Error Resilient Video Communication Upcoming SlideShare Loading in …5 × 1 1 of 24 Like this presentation? Why not share! error resilient video coding techniques Share Email Error Resiliency and Concealment in... bycoldfire7 12873views Convolutional Codes And Their Decoding byKakali Saharia 1714views Satya commercial project gurgaon di... bysahasbedi 8views 11-02 Oklahoma City Tale of the Tape bychicagowolves 197views La innovación byIcampos Camposl 87views Healthy Behavior To Help Keep Your ... byspyroll7 138views Share SlideShare Facebook Twitter LinkedIn Google+ Email Email sent successfully! Embed Size (px) Start on Show related SlideShares at end WordPress Shortcode Link Error Resilient Video Communication 1,036 views Share Like Download Tariq Tauheed, Liscenced Photographer at Airliners.net Follow 0 0 0 Published on Nov 1, 2013 An inherent problem with any communication system is that information may be altered or lost during transmission, due to channel noise. This presentation aims to assess multiple error resilient techniques in video transmission. ----------- Presentation as a part of seminar coursework. ... Published in: Technology, Business 0 Comments 2 Likes Statistics Notes Full Name Comment goes here. 12 hours ago Delete Reply Spam Block Are you sure you want to Yes No Your message goes here Post Be the first to comment Rakshith babu 5 months ago Duke Gold , Coordinator at AMURoboclub 2 years ago No Downloads Views Total views 1,036 On SlideShare 0 From Embeds 0 Number of Embeds 2 Actions Shares 0 Downloads 29 Comments 0 Likes 2 Embeds 0 No embeds No notes for slide Error Resilient Video Communicat
A signal is a message sent from a transmitter to a receiver in multiple small packets. Packet loss occurs when these packets are misdirected, delayed, resequenced, or corrupted.[2] Contents 1 Receiver-Based Techniques 1.1 Waveform substitution 1.2 Zero Insertion 1.3 Interpolation 1.4 Buffer 2 Transmitter-Based Techniques 2.1 Retransmission 2.2 Packet Repetition 2.3 Interleaving 3 Applications 3.1 Analog Applications 3.2 Digital Applications 4 See also 5 References Receiver-Based Techniques[edit] When error recovery occurs at the receiving end of the signal, it is receiver-based. These techniques focus on correcting corrupted or missing data. Waveform substitution[edit] Preliminary attempts at receiver-based http://www.slideshare.net/iamaproudindian/error-resilient-video error concealment involved packet repetition, replacing lost packets with copies of previously received packets. This function is computationally simple and is performed by a device on the receiver end called a "drop-out compensator".[3][4] Zero Insertion[edit] When this technique is used, if a packet is lost, its entries are replaced with 0s. Interpolation[edit] Interpolation involves making educated guesses about the nature of a missing packet. For example, https://en.wikipedia.org/wiki/Error_concealment by following speech patterns in audio or faces in video. Buffer[edit] Data buffers are used for temporarily storing data while waiting for delayed packets to arrive. They are common in internet browser loading bars and video applications, like YouTube. Transmitter-Based Techniques[edit] Rather than attempting to recover lost packets, other techniques involve anticipating data loss, manipulating the data prior to transmission.[4] Retransmission[edit] The simplest transmitter-based technique is retransmission, sending the message multiple times. Although this idea is simple, because of the extra time required to send multiple signals, this technique is incapable of supporting real-time applications.[2] Packet Repetition[edit] Packet repetition, also called forward error correction (FEC), adds redundant data, which the receiver can use to recover lost packets. This minimizes loss, but increases the size of the packet.[5][6] Interleaving[edit] Interleaving involves scrambling the data before transmission. When a packet is lost, rather than losing an entire set of data, small portions of several sets will be gone. At the receiving end, the message is then deinterleaved to reveal the original message with minimal loss. Transmission without interleaving: Original transmitted sentence: ThisIsNotAnExampleOfInterleaving Received sentence with a burst error: ThisIsNot______pleOfInterleaving The term "AnExample" ends up mostly unintell
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