{"title":"基于LDPC编码的无线传输音频水印增强算法","authors":"Yôiti Suzuki, R. Nishimura, Hao Tao","doi":"10.1109/IIH-MSP.2006.61","DOIUrl":null,"url":null,"abstract":"A decrease in the watermark detection rate is a fatal problem in employing audio watermarks for applications in which a watermarked signal is transmitted through the air. The enforcement of watermarks using an error-correcting code is a solution to this problem. Low-density Parity Check (LDPC) coding is a recent error-correcting code; it shows good performance close to Shannon¿s limit. Therefore, in the present study, watermark detection rates when the watermarks were coded combined with and without LDPC coding were evaluated through computer simulations and experiments in a real room. The results showed that employing LDPC coding raised the watermark detection rate by around 15 percentage points for an additive white Gaussian noise and by around 20 points from around 60% to around 80% in an actual reverberation environment.","PeriodicalId":272579,"journal":{"name":"2006 International Conference on Intelligent Information Hiding and Multimedia","volume":"63 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"21","resultStr":"{\"title\":\"Audio Watermark Enhanced by LDPC Coding for Air Transmission\",\"authors\":\"Yôiti Suzuki, R. Nishimura, Hao Tao\",\"doi\":\"10.1109/IIH-MSP.2006.61\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A decrease in the watermark detection rate is a fatal problem in employing audio watermarks for applications in which a watermarked signal is transmitted through the air. The enforcement of watermarks using an error-correcting code is a solution to this problem. Low-density Parity Check (LDPC) coding is a recent error-correcting code; it shows good performance close to Shannon¿s limit. Therefore, in the present study, watermark detection rates when the watermarks were coded combined with and without LDPC coding were evaluated through computer simulations and experiments in a real room. The results showed that employing LDPC coding raised the watermark detection rate by around 15 percentage points for an additive white Gaussian noise and by around 20 points from around 60% to around 80% in an actual reverberation environment.\",\"PeriodicalId\":272579,\"journal\":{\"name\":\"2006 International Conference on Intelligent Information Hiding and Multimedia\",\"volume\":\"63 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2006-12-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"21\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2006 International Conference on Intelligent Information Hiding and Multimedia\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IIH-MSP.2006.61\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2006 International Conference on Intelligent Information Hiding and Multimedia","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IIH-MSP.2006.61","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Audio Watermark Enhanced by LDPC Coding for Air Transmission
A decrease in the watermark detection rate is a fatal problem in employing audio watermarks for applications in which a watermarked signal is transmitted through the air. The enforcement of watermarks using an error-correcting code is a solution to this problem. Low-density Parity Check (LDPC) coding is a recent error-correcting code; it shows good performance close to Shannon¿s limit. Therefore, in the present study, watermark detection rates when the watermarks were coded combined with and without LDPC coding were evaluated through computer simulations and experiments in a real room. The results showed that employing LDPC coding raised the watermark detection rate by around 15 percentage points for an additive white Gaussian noise and by around 20 points from around 60% to around 80% in an actual reverberation environment.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
