TV2Web：メタデータ付きビデオのWeb コンテンツへの自動変換 Mahendren Munisamy，角谷和俊，田中克己 京都大学 情報学研究科 社会情報学専攻 制御 • 映像とメタデータからWebを生成 – ズーム操作で映像とWebコンテンツの切り替え • 映像データの画面サイズの変化 – フォーカス操作で指定範囲の中心点を移動 Zoom in Focus Zoom out メタデータと画像データの格納 • 与えられたデータ – ビデオ映像 • ショット，シーン，セグメントに分割 • 各区間から適切な映像データの抽出 – タイムコード付きメタデータ • ビデオ映像におけるショットレベルの字幕データ – 下位層の字幕を結合上位層のメタデータを生成 セグメント区間 シーン区間 ショット区間 画像とメタデータデータの生成 ビデオ映像の分割 Shot Scene Segment 映像データ メタデータ (1)ショット：30fps (2)シーン:15fps (3)セグメント:5fps (1)番組タイトル ex:CNN Headline News (2)セグメントタイトル ex:天気，スポーツ…… (3)ショットの字幕データ ex: 0-4: Not many singers are nominated アプローチ •各区間(ショット，シーン，セグメント)をブロック構造に変換 •ブロックはセルから構成 ex:ショットのブロックにおいてあるセルは一つのショットを代表 •セルは映像データとメタデータを格納 ビデオ映像 セル 映像データ メタデータ Not many singers are nominated for a Grammy for their very first What’s so great about you is that you’re no different from the What’s so great about you is that you’re no different from the ブロック ブロック構造の性質 • ブロックの観察範囲 – ブロック内のコンテンツに限定 ブロックから出ている 領域の観察が不可能 •複数のブロックの可視状態 –ディスプレー上によるブロック重複の解決 表示中の ブロック 他のブロック 非常時 ブラウジング機能 Shot Scene 指定区間 Segment Zoom-Out Zoom in Focus Zoom out •Zoom-In -映像データ：面積が増加 -メタデータ: LODが低下 •Zoom-Out -映像データ：面積が低下 -メタデータ: LODが増加 Focus Zoom out Focus •Focus -指定範囲の中心点の移動 Zoom-Out機能 面積の下界 （１）観察中のブロックにおいて全て のセルの映像データの縦と横の長 さを一定の値で低下 新たな面積の上界 新たな面積 の下界 (2)メタデータのフォントサイズを一 定の値で増加 （３）セルの映像データの縦或いは 横の長さはある値域値より小さくな ると上位層のブロックを表示 面積の上界 Zoom-In機能 （１）観察中のブロックにおいて全て のセルの映像データの縦と横の長 さを一定の値で増加 新たな面積の上界 新たな面積 の下界 (2)メタデータのフォントサイズを一 定の値で低下 （３）セルの映像データの縦或いは 横の長さはある値域値より大きくな ると下位層のブロックを表示 Focus機能 Focus操作で指定範囲の中心点を移動centering ブロック Not many singers are nomin ated for a Gramy What’s so great about you is that you’re no C: Yeah, this is my third album, it’s called It’s incredi ble becaus e to be nomin ated for a セル Not many singers are nomin ated for a Gramy Focus Focus Not many singers are nomin ated for a Gramy What’s so great about you is that you’re no C: Yeah, this is my third album, it’s called It’s incredi ble becaus e to be nomin ated for a What’s so great about you is that you’re no C: Yeah, this is my third album, it’s called It’s incredi ble becaus e to be nomin ated for a ズームアウト CNN Headline News Not many singers are CNN Headline News ズームアウト Not many singers are CNN Headline News CNN Headline News ズームアウト CNN Headline News ズームアウト CNN Headline News ズームアウト ズームアウト CNN Headline News ズームアウト Interview with Billy Gillman ズームアウト A: Not many singers are nominated for a Grammy for their very first record but Billy Gillman did it before he was old enough to drive. Laura Bolter reports. B: What’s so great about you is that you’re no different from the first time I met you before you’d sold over a million albums, this is your third album C: Yeah, this is my third album, it’s called daily dreaming. It’s just been released in May 8 and I’m really proud of it. Making this album was so much easier because I know what to do, I know what to say, if I wanted to change something, I’d change it one weekend before we started recording. Like every songwriter in Nashville got together in my producers house. And they all got together in my producers house CNN Headline News ズームアウト Interview with Billy Gillman ズームアウト A: Not many singers are nominated for a Grammy for their very first record but Billy Gillman did it before he was old enough to drive. Laura Bolter reports. B: What’s so great about you is that you’re no different from the first time I met you before you’d sold over a million albums, this is your third album C: Yeah, this is my third album, it’s called daily dreaming. It’s just been released in May 8 and I’m really proud of it. Making this album was so much easier because I know what to do, I know what to say, if I wanted to change something, I’d change it one weekend before we started recording. Like every songwriter in Nashville got together in my producers house. And they all got together in my producers house Focus C: Yeah, this is my third album, it’s called daily dreaming. It’s just been released in May 8 and I’m really proud of it. Making this album was so much easier because I know what to do, I know what to say, if I wanted to change something, I’d change it one weekend before we started recording. Like every songwriter in Nashville got together in my producers house. And they all got together in my producers house and they just made song after song after song and we just picked 12 of them from a 50 album best. She’s my girl is really funny because it’s not an acting concept like voice video was when Oklahoma was released. I’m not staring, I don’t have to concentrate so much. It’s a concert so we’re just having fun being my video self, just having fun with the audience. B: So you’re nominated for a Grammy this year. C: Yes B: Some people wait an entire lifetime for it. C: It’s incredible because to be nominated for a Grammy is the pinnacle. Like I said, it’s such a privilege, I’m at such an age where I love everything minute of it just incase it ends. There’s nothing like the feeling of having the audience smiling and listening to you. It gives you the most uplifting feeling you can imagine. C: Yeah, this is my third album, it’s called daily dreaming. It’s just been released in May 8 and I’m really proud of it. Making this album was so much easier because I know what to do, I know what to say, if I wanted to change something, I’d change it one weekend before we started recording. Like every songwriter in Nashville got together in my producers house. And they all got together in my producers house and they just made song after song after song and we just picked 12 of them from a 50 album best. She’s my girl is really funny because it’s not an acting concept like voice video was when Oklahoma was released. I’m not staring, I don’t have to concentrate so much. It’s a concert so we’re just having fun being my video self, just having fun with the audience. Focus B: So you’re nominated for a Grammy this year. C: Yes B: Some people wait an entire lifetime for it. C: It’s incredible because to be nominated for a Grammy is the pinnacle. Like I said, it’s such a privilege, I’m at such an age where I love everything minute of it just incase it ends. There’s nothing like the feeling of having the audience smiling and listening to you. It gives you the most uplifting feeling you can imagine. CNN Headline News ズームアウト Interview with Billy Gillman ズームアウト A: Not many singers are nominated for a Grammy for their very first record but Billy Gillman did it before he was old enough to drive. Laura Bolter reports. B: What’s so great about you is that you’re no different from the first time I met you before you’d sold over a million albums, this is your third album C: Yeah, this is my third album, it’s called daily dreaming. It’s just been released in May 8 and I’m really proud of it. Making this album was so much easier because I know what to do, I know what to say, if I wanted to change something, I’d change it one weekend before we started recording. Like every songwriter in Nashville got together in my producers house. And they all got together in my producers house CNN Headline News ズームアウト Interview with Billy Gillman ズームイン ズームアウト A: Not many singers are nominated for a Grammy for their very first record but Billy Gillman did it before he was old enough to drive. Laura Bolter reports. B: What’s so great about you is that you’re no different from the first time I met you before you’d sold over a million albums, this is your third album C: Yeah, this is my third album, it’s called daily dreaming. It’s just been released in May 8 and I’m really proud of it. Making this album was so much easier because I know what to do, I know what to say, if I wanted to change something, I’d change it one weekend before we started recording. Like every songwriter in Nashville got together in my producers house. And they all got together in my producers house CNN Headline News ズームアウト CNN Headline News ズームアウト ズームイン CNN Headline News CNN Headline News ズームイン CNN Headline News Not many singers are CNN Headline News ズームイン Not many singers are
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