@techreport{oai:ipsj.ixsq.nii.ac.jp:00041447, author = {越井, 剛 and 杉浦, 麻貴 and 花村, 剛 and 富永, 英義 and Go, Koshii and Maki, Sugiura and Tsuyoshi, Hanamura and Hideyoshi, Tominaga}, issue = {60(2001-AVM-033)}, month = {Jun}, note = {ディジタル放送の開始,ネットに接続できる携帯電話及びPCの普及等により様々な状態で映像を取得できる環境が整いつつある.しかし現在のシステムでは携帯端末でのみ有効的であり,ユーザがその情報を再度取得しようとした場合,プロバイダーの提供する検索エンジンを用いたり,アドレス入力により検索・特定し,ダウンロードするには多大な労力を必要とする.そこで容易に高速に画像にアクセスするため,映像の特徴を示す情報(インデックス)を自動的に抽出することが必要とされている.本稿では携帯端末に代表される狭帯域と,PCに代表される広帯域を両用する映像配信システムを提案し,携帯端末への映像配信の際に想定されるMPEG-2/MPEG-4フォーマット変換での原画像からの縮小及び切り出し処理での有効な映像特徴抽出について検討する., Since the beginning of digital broadcast, the cellular phone whose connection is possible to the Internet and the personal computer have spread, the environment where an image is distributed to us also in various situations has been built. However, the information acquired with the personal digital assistant in the present system is effective only at the personal digital assistant. When a user tries to acquire the information again, a search engine is used, or an address input is carried out, and after specifying, reference and a great labor called download are needed. In order to realize access to a picture easily and at high speed, to extract the information which shows the feature of an image is needed. In this paper, a system which uses both narrow transmission channel which a personal digital assistant represents, and large transmission channel which PC represents and which carries out image distribution is proposed. When the format when assuming the image distribution to a personal digital assistant changes, the extraction method of the effective image feature in the reduction processing and cut processing from an original picture image is considered.}, title = {多フォーマット利用の映像配信システムにおけるシーン同定に関する検討}, year = {2001} }