JP5318115B2 - 場所別画像分類 - Google Patents
場所別画像分類 Download PDFInfo
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- JP5318115B2 JP5318115B2 JP2010539448A JP2010539448A JP5318115B2 JP 5318115 B2 JP5318115 B2 JP 5318115B2 JP 2010539448 A JP2010539448 A JP 2010539448A JP 2010539448 A JP2010539448 A JP 2010539448A JP 5318115 B2 JP5318115 B2 JP 5318115B2
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
- G06F16/583—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
- G06F16/587—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using geographical or spatial information, e.g. location
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
- G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
- G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
- G06V10/757—Matching configurations of points or features
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- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- Library & Information Science (AREA)
- General Physics & Mathematics (AREA)
- Data Mining & Analysis (AREA)
- General Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Software Systems (AREA)
- General Health & Medical Sciences (AREA)
- Evolutionary Computation (AREA)
- Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Computing Systems (AREA)
- Artificial Intelligence (AREA)
- Medical Informatics (AREA)
- Image Analysis (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
(a)画像コレクションを受け入れるステップと、
(b)同じ画像が複数通りのイベントに重複分類されることがないようその画像コレクションに属する画像をイベント別に分類するステップと、
(c)イベント毎に画像を解析してそのイベントを代表する特徴的構成要素を1個又は複数個抽出するステップと、
(d)イベント間でその特徴的構成要素を比較して開催場所が同一か否かを調べるステップと、
を有する。
(1)画像から背景領域を検出するステップ10
(2)その背景領域を特徴付ける構成要素(色や模様)を抽出するステップ20
(3)背景間の色、模様又はその双方の類似性に基づきクラスタを生成するステップ30
(4)背景上の共通点に基づき画像に索引を付与するステップ40
(5)付与した索引に基づきコレクション内画像をサーチするステップ42
をその主要構成要素としている。
0.データポイントをランダムに1個選択し、そのデータポイントを基準ポイントとするクラスタを初期生成する
1.ほかのデータポイントそれぞれについて
2.既存クラスタの基準ポイントまでの最小距離を求める
3.最小距離<しきい値ならば
4.その最小距離に係るクラスタにそのデータポイントを追加し、更に
5.当該最小距離に係るクラスタの基準ポイントを更新する
6.それ以外の場合はそのデータポイントで新たなクラスタを生成する
という簡略なアルゴリズムで実行することができる。なお、基準ポイントとしてはクラスタ内データの平均値を使用すればよい。
Claims (3)
- 照合元画像と照合先画像の間でその背景領域を照合する方法であって、
(a)照合元,照合先双方の画像からその背景領域を検出するステップと、
(b)照合元,照合先双方の画像の背景領域から特徴ポイントを抽出するステップと、
(c)照合元画像内の特徴ポイントと照合先画像内の特徴ポイントを照合するステップと、
(d)符合するとされた特徴ポイントに基づき空間的にコンパクトなクラスタを生成するステップと、
(e)符合するとされたが同じ被写体上の領域に属していない特徴ポイントを除外するステップと、
(f)前記ステップ(e)により抽出された特徴ポイントから照合元・照合先画像間の符合度を求めるステップと、
を有する方法。 - 請求項1記載の方法であって、ステップ(e)が、
(i)照合先画像内の照合先クラスタに対する強い相関を欠くクラスタを除外するステップと、
(ii)特徴ポイント群の大域的軌跡から外れている特徴ポイントを除外するステップと、
(iii)クラスタ内でコンパクトにまとまっていない特徴ポイントを除外するステップと、
を含む方法。 - 請求項1記載の方法であって、さらに、
(g)前記照合元・照合先画像間の符号度を用いて、前記照合元・照合先画像が同じ場所で撮影されたものであるか否かを調べるステップと、
(h)前記照合元・照合先画像に、同じ場所で撮影されたことを示す説明ラベルを付与するステップと、
を有する方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/960,800 US8150098B2 (en) | 2007-12-20 | 2007-12-20 | Grouping images by location |
| US11/960,800 | 2007-12-20 | ||
| PCT/US2008/013732 WO2009085142A2 (en) | 2007-12-20 | 2008-12-16 | Grouping images by location |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2011508310A JP2011508310A (ja) | 2011-03-10 |
| JP2011508310A5 JP2011508310A5 (ja) | 2012-02-09 |
| JP5318115B2 true JP5318115B2 (ja) | 2013-10-16 |
Family
ID=40652237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010539448A Expired - Fee Related JP5318115B2 (ja) | 2007-12-20 | 2008-12-16 | 場所別画像分類 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8150098B2 (ja) |
| EP (2) | EP2208152A2 (ja) |
| JP (1) | JP5318115B2 (ja) |
| WO (1) | WO2009085142A2 (ja) |
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| US6915011B2 (en) | 2001-03-28 | 2005-07-05 | Eastman Kodak Company | Event clustering of images using foreground/background segmentation |
| JP2003330941A (ja) * | 2002-05-08 | 2003-11-21 | Olympus Optical Co Ltd | 類似画像分類装置 |
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| US20040126038A1 (en) * | 2002-12-31 | 2004-07-01 | France Telecom Research And Development Llc | Method and system for automated annotation and retrieval of remote digital content |
| US7298895B2 (en) * | 2003-04-15 | 2007-11-20 | Eastman Kodak Company | Method for automatically classifying images into events |
| EP1622081A1 (en) * | 2003-04-21 | 2006-02-01 | NEC Corporation | Video object recognition device and recognition method, video annotation giving device and giving method, and program |
| US7872669B2 (en) * | 2004-01-22 | 2011-01-18 | Massachusetts Institute Of Technology | Photo-based mobile deixis system and related techniques |
| EP1736928A1 (en) * | 2005-06-20 | 2006-12-27 | Mitsubishi Electric Information Technology Centre Europe B.V. | Robust image registration |
| JP4976036B2 (ja) * | 2006-03-29 | 2012-07-18 | パナソニック株式会社 | 画像検索支援装置 |
| US8611673B2 (en) * | 2006-09-14 | 2013-12-17 | Parham Aarabi | Method, system and computer program for interactive spatial link-based image searching, sorting and/or displaying |
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2007
- 2007-12-20 US US11/960,800 patent/US8150098B2/en not_active Expired - Fee Related
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2008
- 2008-12-16 JP JP2010539448A patent/JP5318115B2/ja not_active Expired - Fee Related
- 2008-12-16 EP EP08865994A patent/EP2208152A2/en not_active Withdrawn
- 2008-12-16 EP EP10159662.5A patent/EP2224372A3/en not_active Withdrawn
- 2008-12-16 WO PCT/US2008/013732 patent/WO2009085142A2/en not_active Ceased
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|---|---|
| US8150098B2 (en) | 2012-04-03 |
| EP2224372A8 (en) | 2011-01-19 |
| WO2009085142A2 (en) | 2009-07-09 |
| EP2208152A2 (en) | 2010-07-21 |
| WO2009085142A3 (en) | 2009-11-05 |
| EP2224372A2 (en) | 2010-09-01 |
| JP2011508310A (ja) | 2011-03-10 |
| US20090161962A1 (en) | 2009-06-25 |
| EP2224372A3 (en) | 2014-05-07 |
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