Pub Date : 2002-06-18DOI: 10.1109/ICCE.2002.1013964
H. Kato, H. Yanagihara, Y. Nakajima, Y. Hatori
A fast motion estimation algorithm for digital video (DV) to MPEG-2 conversion is described. Since DCT information is available from DV data and 2/spl times/2 IDCT can be achieved by simple summation and subtraction operations, a low-resolution image is constructed and used for a coarse motion search. Then a fine search is performed using an extended two step search in the original image domain. The experimental results show that the proposed method is more than 160 times faster than the full search whereas the PSNR and search speed are greatly improved when compared with the conventional method.
{"title":"A fast motion estimation algorithm for DV to MPEG-2 conversion","authors":"H. Kato, H. Yanagihara, Y. Nakajima, Y. Hatori","doi":"10.1109/ICCE.2002.1013964","DOIUrl":"https://doi.org/10.1109/ICCE.2002.1013964","url":null,"abstract":"A fast motion estimation algorithm for digital video (DV) to MPEG-2 conversion is described. Since DCT information is available from DV data and 2/spl times/2 IDCT can be achieved by simple summation and subtraction operations, a low-resolution image is constructed and used for a coarse motion search. Then a fine search is performed using an extended two step search in the original image domain. The experimental results show that the proposed method is more than 160 times faster than the full search whereas the PSNR and search speed are greatly improved when compared with the conventional method.","PeriodicalId":168349,"journal":{"name":"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125249438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-06-18DOI: 10.1109/ICCE.2002.1013957
G. Voulgaris, J. Jiang
In this paper we describe two methods for the improvement of the speed of image retrieval systems. The methods include alterations over the typical calculation of the L2 distance and a strategy for prefiltering of the feature signatures database. The paper concludes with representative experimental results.
{"title":"Faster distance calculation in image retrieval systems","authors":"G. Voulgaris, J. Jiang","doi":"10.1109/ICCE.2002.1013957","DOIUrl":"https://doi.org/10.1109/ICCE.2002.1013957","url":null,"abstract":"In this paper we describe two methods for the improvement of the speed of image retrieval systems. The methods include alterations over the typical calculation of the L2 distance and a strategy for prefiltering of the feature signatures database. The paper concludes with representative experimental results.","PeriodicalId":168349,"journal":{"name":"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126135494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-06-18DOI: 10.1109/ICCE.2002.1013967
V. Tawil
In January of 2001, the Advanced Television System Committee (ATSC) issued a request for proposals (RFP) soliciting the development of enhancements to the ATSC VSB digital television standard (A/53). The Committee received a number of proposals, which were subsequently developed into hardware for evaluation. This paper presents results of laboratory and field test measurements of these proposed enhancements conducted over a six-month period during the winter of 2001 and the spring of 2002. The primary objective of this measurement program is to evaluate the performance of these enhancements relative to the existing ATSC Standard under controlled (laboratory) and real world (field) conditions. Data regarding the compatibility of transmitting these enhanced signals on the existing population of DTV receivers (legacy receivers) are also presented.
{"title":"Testing enhancements to the ATSC VSB terrestrial digital television standard","authors":"V. Tawil","doi":"10.1109/ICCE.2002.1013967","DOIUrl":"https://doi.org/10.1109/ICCE.2002.1013967","url":null,"abstract":"In January of 2001, the Advanced Television System Committee (ATSC) issued a request for proposals (RFP) soliciting the development of enhancements to the ATSC VSB digital television standard (A/53). The Committee received a number of proposals, which were subsequently developed into hardware for evaluation. This paper presents results of laboratory and field test measurements of these proposed enhancements conducted over a six-month period during the winter of 2001 and the spring of 2002. The primary objective of this measurement program is to evaluate the performance of these enhancements relative to the existing ATSC Standard under controlled (laboratory) and real world (field) conditions. Data regarding the compatibility of transmitting these enhanced signals on the existing population of DTV receivers (legacy receivers) are also presented.","PeriodicalId":168349,"journal":{"name":"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126396091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-06-18DOI: 10.1109/ICCE.2002.1013936
B. Fong, G. Hong, A. Fong
Wireless wideband communication systems provide high data transmission rates suitable for fast Internet access. This paper presents a modulation scheme for Local Multipoint Distribution Service (LMDS), which improves coverage under rainy weather conditions. Following a comparison of a number of modulation schemes with a 26 GHz carrier, a 16-QAM system is found to offer good compromise between coverage and receiver structure complexity. The effects of rain attenuation increase with carrier frequency. System performance varies significantly depending on whether the system is operated on a dry day or under heavy rain.
{"title":"A QAM scheme for fast wireless Internet and multimedia services","authors":"B. Fong, G. Hong, A. Fong","doi":"10.1109/ICCE.2002.1013936","DOIUrl":"https://doi.org/10.1109/ICCE.2002.1013936","url":null,"abstract":"Wireless wideband communication systems provide high data transmission rates suitable for fast Internet access. This paper presents a modulation scheme for Local Multipoint Distribution Service (LMDS), which improves coverage under rainy weather conditions. Following a comparison of a number of modulation schemes with a 26 GHz carrier, a 16-QAM system is found to offer good compromise between coverage and receiver structure complexity. The effects of rain attenuation increase with carrier frequency. System performance varies significantly depending on whether the system is operated on a dry day or under heavy rain.","PeriodicalId":168349,"journal":{"name":"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132456852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-06-18DOI: 10.1109/ICCE.2002.1014014
Ming-Chang Liu, I. Tsukagoshi, M. Kutner
This paper describes very cost-effective algorithms to detect scene changes and field repetition in video sequences for a real-time MPEG encoder. It also provides a scheme to support a dynamic GOP structure reflecting the detection outcome on the fly. With these features, the encoder can encode video more efficiently in either quality or bitrate aspect. The proposed detection methods only utilize the existing information, field motion vectors and picture coding type, from MPEG coding and are very suitable for (but not limited to) software-based encoders.
{"title":"Real-time MPEG video encoder with embedded scene change detection and telecine inverse","authors":"Ming-Chang Liu, I. Tsukagoshi, M. Kutner","doi":"10.1109/ICCE.2002.1014014","DOIUrl":"https://doi.org/10.1109/ICCE.2002.1014014","url":null,"abstract":"This paper describes very cost-effective algorithms to detect scene changes and field repetition in video sequences for a real-time MPEG encoder. It also provides a scheme to support a dynamic GOP structure reflecting the detection outcome on the fly. With these features, the encoder can encode video more efficiently in either quality or bitrate aspect. The proposed detection methods only utilize the existing information, field motion vectors and picture coding type, from MPEG coding and are very suitable for (but not limited to) software-based encoders.","PeriodicalId":168349,"journal":{"name":"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134599506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-06-18DOI: 10.1109/ICCE.2002.1013926
P. Swartz, H. Mallapur, Xu Dong
This paper presents a SoC solution that will provide video format conversion for television sets and DVD players, which provides the highest quality image. The chip accepts and provides various video formats and employs motion adaptive de-interlacing, image conversion and enhancement.
{"title":"Video format conversion in a single chip","authors":"P. Swartz, H. Mallapur, Xu Dong","doi":"10.1109/ICCE.2002.1013926","DOIUrl":"https://doi.org/10.1109/ICCE.2002.1013926","url":null,"abstract":"This paper presents a SoC solution that will provide video format conversion for television sets and DVD players, which provides the highest quality image. The chip accepts and provides various video formats and employs motion adaptive de-interlacing, image conversion and enhancement.","PeriodicalId":168349,"journal":{"name":"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132374148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-06-18DOI: 10.1109/ICCE.2002.1014043
Woo-Seop Kim, Lok-Won Kim, Chang-Eun Lee, Kyeong-Deok Moon, Suki Kim
This paper presents a LonTalk protocol architecture that can alleviate the burden of data communications in the Neuron chip. The proposed protocol is implemented with partly hardware and partly software. The physical layer and the MAC layer of the LonTalk protocol are implemented in hardware. The upper link layer of the LonTalk protocol is implemented with software. We verified the commercial feasibility of the proposed system through the power line tests with the existing LonWorks network. As a result, it is concluded that the proposed architecture provides increasing flexibility and decreasing cost of the system.
{"title":"A control protocol architecture based on LonTalk protocol for power line data communications","authors":"Woo-Seop Kim, Lok-Won Kim, Chang-Eun Lee, Kyeong-Deok Moon, Suki Kim","doi":"10.1109/ICCE.2002.1014043","DOIUrl":"https://doi.org/10.1109/ICCE.2002.1014043","url":null,"abstract":"This paper presents a LonTalk protocol architecture that can alleviate the burden of data communications in the Neuron chip. The proposed protocol is implemented with partly hardware and partly software. The physical layer and the MAC layer of the LonTalk protocol are implemented in hardware. The upper link layer of the LonTalk protocol is implemented with software. We verified the commercial feasibility of the proposed system through the power line tests with the existing LonWorks network. As a result, it is concluded that the proposed architecture provides increasing flexibility and decreasing cost of the system.","PeriodicalId":168349,"journal":{"name":"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133052496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-06-18DOI: 10.1109/ICCE.2002.1014046
Y. Hatayama, K. Nakaoka, M. Kato, H. Takemura
This paper proposes a new content distribution system over Bluetooth. We experimentally developed a distribution system that expands an existing one by using Bluetooth. This system makes it possible to provide users with the means to download content such as music quickly and cheaply, and it expands the opportunities for content delivery businesses.
{"title":"The new content distribution system over Bluetooth","authors":"Y. Hatayama, K. Nakaoka, M. Kato, H. Takemura","doi":"10.1109/ICCE.2002.1014046","DOIUrl":"https://doi.org/10.1109/ICCE.2002.1014046","url":null,"abstract":"This paper proposes a new content distribution system over Bluetooth. We experimentally developed a distribution system that expands an existing one by using Bluetooth. This system makes it possible to provide users with the means to download content such as music quickly and cheaply, and it expands the opportunities for content delivery businesses.","PeriodicalId":168349,"journal":{"name":"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114250017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-06-18DOI: 10.1109/ICCE.2002.1013912
G. Stone, B. Fairman, J. Laake
General purpose operating systems do not provide a quality of service (QoS) guarantee for processing isochronous A/V data streams. The TrueTime software architecture provides a model for guaranteed processing of isochronous streams. The TrueTime architecture integrates with an OS kernel to exploit the streaming nature of isochronous data streams.
{"title":"TrueTime software architecture","authors":"G. Stone, B. Fairman, J. Laake","doi":"10.1109/ICCE.2002.1013912","DOIUrl":"https://doi.org/10.1109/ICCE.2002.1013912","url":null,"abstract":"General purpose operating systems do not provide a quality of service (QoS) guarantee for processing isochronous A/V data streams. The TrueTime software architecture provides a model for guaranteed processing of isochronous streams. The TrueTime architecture integrates with an OS kernel to exploit the streaming nature of isochronous data streams.","PeriodicalId":168349,"journal":{"name":"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114643775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-06-18DOI: 10.1109/ICCE.2002.1014048
Soyeon Min, K. Jang, Myungjin Bae
We develop a computation reduction method for the real root method that is mainly used in the CELP (code excited linear prediction) vocoder. The real root method is that if polynomial equations have real roots, we are able to find those and transform them into LSP (line spectrum pairs). However, this method takes much time to compute, because the root searching is processed sequentially in the frequency region. But the important characteristic of LSP is that most coefficients occur in a specific frequency region. We suggest a method for reducing the LSP transformation time using voice characteristics. In the case of the silence period, the distribution of LSP parameters is uniform. In the case of the voice activity period, distribution of LSP parameters is not sequential. The proposed method applies search order and interval differently according to the distribution of LSP parameters. Also in the case of vowels, the search band can be controlled by the relation between the first formant and the second formant. When we compare this proposed method with the conventional real root method, the experimental result is that the searching time was reduced about 46% on average.
{"title":"A study on the reduction of LSP (line spectrum pair) computation using adjustment of search band sequence and interval","authors":"Soyeon Min, K. Jang, Myungjin Bae","doi":"10.1109/ICCE.2002.1014048","DOIUrl":"https://doi.org/10.1109/ICCE.2002.1014048","url":null,"abstract":"We develop a computation reduction method for the real root method that is mainly used in the CELP (code excited linear prediction) vocoder. The real root method is that if polynomial equations have real roots, we are able to find those and transform them into LSP (line spectrum pairs). However, this method takes much time to compute, because the root searching is processed sequentially in the frequency region. But the important characteristic of LSP is that most coefficients occur in a specific frequency region. We suggest a method for reducing the LSP transformation time using voice characteristics. In the case of the silence period, the distribution of LSP parameters is uniform. In the case of the voice activity period, distribution of LSP parameters is not sequential. The proposed method applies search order and interval differently according to the distribution of LSP parameters. Also in the case of vowels, the search band can be controlled by the relation between the first formant and the second formant. When we compare this proposed method with the conventional real root method, the experimental result is that the searching time was reduced about 46% on average.","PeriodicalId":168349,"journal":{"name":"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116545324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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