Scene Adaptive Coder
An efficient single-pass adaptive bandwidth compression technique using the discrete cosine transform is described. The coding process involves a simple thresholding and normalization operation on the transform coefficients. Adaptivity is achieved by using a rate buffer for channel rate equalization...
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| Veröffentlicht in: | I.R.E. transactions on communications systems 1984-01, Vol.32 (3), p.225-232 |
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| container_end_page | 232 |
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| container_issue | 3 |
| container_start_page | 225 |
| container_title | I.R.E. transactions on communications systems |
| container_volume | 32 |
| creator | Wen-Hsiung Chen Pratt, W. |
| description | An efficient single-pass adaptive bandwidth compression technique using the discrete cosine transform is described. The coding process involves a simple thresholding and normalization operation on the transform coefficients. Adaptivity is achieved by using a rate buffer for channel rate equalization. The buffer status and input rate are monitored to generate a feedback normalization factor. Excellent results are demonstrated for coding of color images at 0.4 bits/pixel corresponding to real-time color television transmission over a 1.5 Mbit/s channel. |
| doi_str_mv | 10.1109/TCOM.1984.1096066 |
| format | Article |
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The coding process involves a simple thresholding and normalization operation on the transform coefficients. Adaptivity is achieved by using a rate buffer for channel rate equalization. The buffer status and input rate are monitored to generate a feedback normalization factor. Excellent results are demonstrated for coding of color images at 0.4 bits/pixel corresponding to real-time color television transmission over a 1.5 Mbit/s channel.</description><identifier>ISSN: 0090-6778</identifier><identifier>ISSN: 0096-2244</identifier><identifier>EISSN: 1558-0857</identifier><identifier>DOI: 10.1109/TCOM.1984.1096066</identifier><identifier>CODEN: IECMBT</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Bandwidth ; Broadcasting. Videocommunications. 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The coding process involves a simple thresholding and normalization operation on the transform coefficients. Adaptivity is achieved by using a rate buffer for channel rate equalization. The buffer status and input rate are monitored to generate a feedback normalization factor. Excellent results are demonstrated for coding of color images at 0.4 bits/pixel corresponding to real-time color television transmission over a 1.5 Mbit/s channel.</description><subject>Applied sciences</subject><subject>Bandwidth</subject><subject>Broadcasting. Videocommunications. Audiovisual</subject><subject>Color</subject><subject>Discrete cosine transforms</subject><subject>Discrete transforms</subject><subject>Exact sciences and technology</subject><subject>Feedback</subject><subject>Image coding</subject><subject>Layout</subject><subject>Monitoring</subject><subject>Pixel</subject><subject>Telecommunications</subject><subject>Telecommunications and information theory</subject><subject>Television</subject><issn>0090-6778</issn><issn>0096-2244</issn><issn>1558-0857</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1984</creationdate><recordtype>article</recordtype><recordid>eNpNj0tLw0AUhQdRMFZ3bsRNF-Iu9c4jmZllCfUBlS7sfpjM3IFImtSZVvDfm5Airi4Xzvk4HyF3FBaUgn7aVpv3BdVKLIavhLI8IxktCpWDKuQ5yQA05KWU6pJcpfQJAAI4z8jth8MO50tv94fmG-dV7zFek4tg24Q3pzsj2-fVtnrN15uXt2q5zh1n_JBLwaTwEGzNkOmAwXsrUDPGnFQewAL6INHWtC59zbj2wzYxbCzrwCXwGXmcsPvYfx0xHcyuSQ7b1nbYH5NhgiupCzoE6RR0sU8pYjD72Oxs_DEUzKhvRn0z6puT_tB5OMFtcrYN0XauSX9FXShgbNxwP8UaRPyHnSC_ThxhLA</recordid><startdate>19840101</startdate><enddate>19840101</enddate><creator>Wen-Hsiung Chen</creator><creator>Pratt, W.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SP</scope><scope>8FD</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>19840101</creationdate><title>Scene Adaptive Coder</title><author>Wen-Hsiung Chen ; Pratt, W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c323t-74274d0fab2e29fefdda4e9222c78d00a0edf7eab1b6db239d10949846bf3703</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1984</creationdate><topic>Applied sciences</topic><topic>Bandwidth</topic><topic>Broadcasting. Videocommunications. Audiovisual</topic><topic>Color</topic><topic>Discrete cosine transforms</topic><topic>Discrete transforms</topic><topic>Exact sciences and technology</topic><topic>Feedback</topic><topic>Image coding</topic><topic>Layout</topic><topic>Monitoring</topic><topic>Pixel</topic><topic>Telecommunications</topic><topic>Telecommunications and information theory</topic><topic>Television</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wen-Hsiung Chen</creatorcontrib><creatorcontrib>Pratt, W.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>I.R.E. transactions on communications systems</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Wen-Hsiung Chen</au><au>Pratt, W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Scene Adaptive Coder</atitle><jtitle>I.R.E. transactions on communications systems</jtitle><stitle>TCOMM</stitle><date>1984-01-01</date><risdate>1984</risdate><volume>32</volume><issue>3</issue><spage>225</spage><epage>232</epage><pages>225-232</pages><issn>0090-6778</issn><issn>0096-2244</issn><eissn>1558-0857</eissn><coden>IECMBT</coden><abstract>An efficient single-pass adaptive bandwidth compression technique using the discrete cosine transform is described. The coding process involves a simple thresholding and normalization operation on the transform coefficients. Adaptivity is achieved by using a rate buffer for channel rate equalization. The buffer status and input rate are monitored to generate a feedback normalization factor. Excellent results are demonstrated for coding of color images at 0.4 bits/pixel corresponding to real-time color television transmission over a 1.5 Mbit/s channel.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TCOM.1984.1096066</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | ISSN: 0090-6778 |
| ispartof | I.R.E. transactions on communications systems, 1984-01, Vol.32 (3), p.225-232 |
| issn | 0090-6778 0096-2244 1558-0857 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_24387951 |
| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Bandwidth Broadcasting. Videocommunications. Audiovisual Color Discrete cosine transforms Discrete transforms Exact sciences and technology Feedback Image coding Layout Monitoring Pixel Telecommunications Telecommunications and information theory Television |
| title | Scene Adaptive Coder |
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