电视广告监测是媒体、广告主、数据公司等诸多机构了解掌握广告真实播放情况的主要方式。近年来,随着科技的发展,广告监测的技术手段不断发展完善,本文通过对数字水印和视频基因DWVD(Digital Watermarking Video DNA)新技术的介绍,阐述...电视广告监测是媒体、广告主、数据公司等诸多机构了解掌握广告真实播放情况的主要方式。近年来,随着科技的发展,广告监测的技术手段不断发展完善,本文通过对数字水印和视频基因DWVD(Digital Watermarking Video DNA)新技术的介绍,阐述了基于该技术的广告监测系统在电视媒体的实际应用情况和现实意义。展开更多
The recognition and retrieval of identical videos by combing through entire video files requires a great deal of time and memory space. Therefore, most current video-matching methods analyze only a part of each video&...The recognition and retrieval of identical videos by combing through entire video files requires a great deal of time and memory space. Therefore, most current video-matching methods analyze only a part of each video's image frame information. All these methods, however, share the critical problem of erroneously categorizing identical videos as different if they have merely been altered in resolution or converted with a different codec. This paper deals instead with an identical-video-retrieval method using the low-peak feature of audio data. The low-peak feature remains relatively stable even with changes in bit-rate or codec. The proposed method showed a search success rate of 93.7% in a video matching experiment. This approach could provide a technique for recognizing identical content on video file share sites.展开更多
文摘电视广告监测是媒体、广告主、数据公司等诸多机构了解掌握广告真实播放情况的主要方式。近年来,随着科技的发展,广告监测的技术手段不断发展完善,本文通过对数字水印和视频基因DWVD(Digital Watermarking Video DNA)新技术的介绍,阐述了基于该技术的广告监测系统在电视媒体的实际应用情况和现实意义。
文摘The recognition and retrieval of identical videos by combing through entire video files requires a great deal of time and memory space. Therefore, most current video-matching methods analyze only a part of each video's image frame information. All these methods, however, share the critical problem of erroneously categorizing identical videos as different if they have merely been altered in resolution or converted with a different codec. This paper deals instead with an identical-video-retrieval method using the low-peak feature of audio data. The low-peak feature remains relatively stable even with changes in bit-rate or codec. The proposed method showed a search success rate of 93.7% in a video matching experiment. This approach could provide a technique for recognizing identical content on video file share sites.
