An efficient parallel video transmission system including codecs with functions of failure detection and coding noise evaluation
For contribution and primary distribution of television, i.e., television transmission to broadcasting stations, parallel transmission links that include codecs are often set up for reliability. However, this configuration still faces the following issues: 1) during normal periods, the reserve link...
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| Veröffentlicht in: | IEEE transactions on circuits and systems for video technology 2005-11, Vol.15 (11), p.1341-1353 |
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| container_title | IEEE transactions on circuits and systems for video technology |
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| creator | Kawada, R. Koike, A. Wada, M. Matsumoto, S. |
| description | For contribution and primary distribution of television, i.e., television transmission to broadcasting stations, parallel transmission links that include codecs are often set up for reliability. However, this configuration still faces the following issues: 1) during normal periods, the reserve link is totally wasted and 2) when a failure occurs, the disrupted signal continues to be transmitted until the system switches to the reserve link. In addition, in digital video transmission, automatic assessment of received video quality is an important issue. To address these issues, the authors developed a processing system for parallelly transmitted video signals, which mainly consists of the following three elements: 1) when both links are normal, outputting the average signal of both links reduces compression coding noise and improves picture quality compared to only one link (efficiency); 2) comparison of the pictures from the two links enables failure detection in either link, to switch to the normal link (support of failure detection); and 3) comparison of the two normally decoded pictures enables evaluation of picture quality (automatic coding noise evaluation). This unique system improves the reliability and operational efficiency of conventional parallel video transmission links. |
| doi_str_mv | 10.1109/TCSVT.2005.856930 |
| format | Article |
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However, this configuration still faces the following issues: 1) during normal periods, the reserve link is totally wasted and 2) when a failure occurs, the disrupted signal continues to be transmitted until the system switches to the reserve link. In addition, in digital video transmission, automatic assessment of received video quality is an important issue. To address these issues, the authors developed a processing system for parallelly transmitted video signals, which mainly consists of the following three elements: 1) when both links are normal, outputting the average signal of both links reduces compression coding noise and improves picture quality compared to only one link (efficiency); 2) comparison of the pictures from the two links enables failure detection in either link, to switch to the normal link (support of failure detection); and 3) comparison of the two normally decoded pictures enables evaluation of picture quality (automatic coding noise evaluation). 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However, this configuration still faces the following issues: 1) during normal periods, the reserve link is totally wasted and 2) when a failure occurs, the disrupted signal continues to be transmitted until the system switches to the reserve link. In addition, in digital video transmission, automatic assessment of received video quality is an important issue. To address these issues, the authors developed a processing system for parallelly transmitted video signals, which mainly consists of the following three elements: 1) when both links are normal, outputting the average signal of both links reduces compression coding noise and improves picture quality compared to only one link (efficiency); 2) comparison of the pictures from the two links enables failure detection in either link, to switch to the normal link (support of failure detection); and 3) comparison of the two normally decoded pictures enables evaluation of picture quality (automatic coding noise evaluation). This unique system improves the reliability and operational efficiency of conventional parallel video transmission links.</description><subject>Applied sciences</subject><subject>Codec</subject><subject>Codecs</subject><subject>Coding</subject><subject>Coding noise evaluation</subject><subject>Coding, codes</subject><subject>Computerized monitoring</subject><subject>Condition monitoring</subject><subject>Decoding</subject><subject>Degradation</subject><subject>efficiency</subject><subject>Exact sciences and technology</subject><subject>Failure detection</subject><subject>Information, signal and communications theory</subject><subject>Links</subject><subject>Noise</subject><subject>parallel transmission</subject><subject>Pictures</subject><subject>Product introduction</subject><subject>Remote monitoring</subject><subject>Reserves</subject><subject>Signal and communications theory</subject><subject>Signal processing</subject><subject>Switches</subject><subject>Systems, networks and services of telecommunications</subject><subject>Telecommunications</subject><subject>Telecommunications and information theory</subject><subject>television transmission</subject><subject>Transmission and modulation (techniques and equipments)</subject><subject>Video compression</subject><subject>Video transmission</subject><issn>1051-8215</issn><issn>1558-2205</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kcFqFTEUhgdRsFYfQNwEQV3NbXIymUmW5WKrUHDh1W2IyYmm5CbXZKbSnY_eTG-h4MJVQs73H_Lzdd1rRjeMUXW22379vtsApWIjxag4fdKdMCFkD0DF03angvUSmHjevaj1mlI2yGE66f6eJ4LeBxswzeRgiokRI7kJDjOZi0l1H2oNOZF6W2fck5BsXFxIP4nNDm0lf8L8i_gl2blRlWRPvAlxKUgcznj_SkxyK76mUg4VCd6YuJh19rJ75k2s-OrhPO2-XXzcbT_1V18uP2_Pr3rLpZh7bKU8TOiUAc7cyIySPzgOznjnBiek4QjCjwIUKiqniTHFuKGSg1QOkZ92H457DyX_XrDOuhWzGKNJmJeqpRqBDopCI9__lwRJxUCFauDbf8DrvJTUWmjFgEqlpqFB7AjZkmst6PWhhL0pt5pRvarT9-r0qk4f1bXMu4fFploTfdNgQ30MTgBCTusH3hy5gIiPYwEAI-N3Og2kOQ</recordid><startdate>20051101</startdate><enddate>20051101</enddate><creator>Kawada, R.</creator><creator>Koike, A.</creator><creator>Wada, M.</creator><creator>Matsumoto, S.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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However, this configuration still faces the following issues: 1) during normal periods, the reserve link is totally wasted and 2) when a failure occurs, the disrupted signal continues to be transmitted until the system switches to the reserve link. In addition, in digital video transmission, automatic assessment of received video quality is an important issue. To address these issues, the authors developed a processing system for parallelly transmitted video signals, which mainly consists of the following three elements: 1) when both links are normal, outputting the average signal of both links reduces compression coding noise and improves picture quality compared to only one link (efficiency); 2) comparison of the pictures from the two links enables failure detection in either link, to switch to the normal link (support of failure detection); and 3) comparison of the two normally decoded pictures enables evaluation of picture quality (automatic coding noise evaluation). 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| ispartof | IEEE transactions on circuits and systems for video technology, 2005-11, Vol.15 (11), p.1341-1353 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Codec Codecs Coding Coding noise evaluation Coding, codes Computerized monitoring Condition monitoring Decoding Degradation efficiency Exact sciences and technology Failure detection Information, signal and communications theory Links Noise parallel transmission Pictures Product introduction Remote monitoring Reserves Signal and communications theory Signal processing Switches Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory television transmission Transmission and modulation (techniques and equipments) Video compression Video transmission |
| title | An efficient parallel video transmission system including codecs with functions of failure detection and coding noise evaluation |
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