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時間的冗長性の除去による調理履歴映像の要約

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  • ジカンテキ ジョウチョウセイ ノ ジョキョ ニ ヨル チョウリ リレキ エイゾウ ノ ヨウヤク
  • Cook-Log Video Summarization by Removing Temporal Redundancy

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Abstract

個人が調理過程を撮影した映像の要約手法について報告する.近年,個人の生活を記録するライフログが注目されている.しかし,ライフログは長時間に渡り記録されるものであり,データ量が膨大である.本報告では,日常的な創作活動である料理に着目し,個人が調理過程を撮影した調理履歴映像の要約手法を提案する.調理履歴映像は,ログとしての利用以外に,インターネット上で公開するなどして,他人が調理する際の参考映像として提供することもできる.そのため,映像を要約することでより効率的に検索・閲覧できると考えられる.提案手法では,映像から時間的冗長な区間として静止区間と繰り返し区間を検出し,それらを除去することで調理履歴映像を要約する.実際に調理過程を撮影した映像を用いて区間検出実験を行い,静止区間は適合率0.98,再現率0.99,繰り返し区間は適合率0.62,再現率0.92の精度が得られた. We report on a method for summarizing a video which recorded the process of cooking by an individual. In recent years, life-log which records the daily life of an individual has been attracting attention. However, since life-log is recorded over a long time, the amount of data is huge. In this report, we focus on cooking which is a creative activity in daily life, and we propose a method for summarizing a cook-log video which recorded the process of cooking by an individual. A cook-log video can not only be used as a kind of life-log, but it can also be able to be provided on the Internet as a reference for other people to cook. Thus, summarizing a cook-log video enables more efficient search and browsing. The proposed method detects the state sections and the repetitious sections as temporal redundant sections, and summarizes the cook-log video by removing them. We conducted a section detection experiment using an actual cook-log. A precision of 0.98 and a recall of 0.99 were obtained for detecting the state section, and a precision of 0.62 and a recall of 0.92 were obtained for detecting the repetitious section.

identifier:http://ci.nii.ac.jp/naid/110009588514/

identifier:http://hdl.handle.net/2237/23844

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