JP2006520972A - 画像パターン認識システム及び方法 - Google Patents
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Abstract
Description
ここに記載する実施形態は、パターン認識システム及び方法を提供する。例えば、ここに記載する一つの方法は、複数の画像カーネル(image kernels)に分割されるデジタル化された画像を考慮に入れている。画像カーネルは、カーネルにおける各画素の光の強度(intensity)を判断するように分析される。画像カーネルに関する画素の強度は、ベクトルに結合され、該ベクトルは、画像における他のベクトルとともにデータ構造内に格納される。各ベクトルは、インデックス及びベクトルを使用して後に復元可能なデジタル画像用のコンポジットインデックスを生成するために、索引が付けられる
特徴部を示す領域におけるベクトルの観察(observe)回数/全ベクトル観察回数
a)サイズ:一般的に直径で少なくとも20μm(通常の白血球は10〜15μm)。
b)核サイズ:大きく通常丸い(通常の核はより小さく、及び/又は形状が不規則)。
c)核形態学:通常一若しくは複数の核小体が存在する(細胞核内の小さいダークブルー色の領域)。
d)核着色:通常の白血球と比して通常明るく(ヘマトキシリンより明るくない)着色されている。
e)細胞質着色:通常の白血球と比して、あるいは青く(好塩基性よりも青く)着色されている。
f)核と細胞質との比:おおきな細胞核を示す通常の白血球に比べて通常高い。
Claims (26)
- 画像を一又は複数の画像カーネルに分割し、ここで各カーネルは複数の画素を有し、
カーネルにおける各画素の強度を測定し、
上記カーネル内の各画素について測定強度を有するベクトルを生成し、
複数のベクトルを備えたボキャブラリーに上記ベクトルを格納し、
上記ベクトルについてインデックスを生成し、
上記ボキャブラリー内の上記複数のベクトルに対応する複数のインデックスを備えたベクトルインデックスファイルに上記インデックスを付加する、
ことを備えた、コンピュータにより実行されるデジタル画像の符号化方法。 - 既に格納されているベクトルが新しく生成されたベクトルに一致するか否かを決定するため、上記新たに生成されたベクトルと上記ボキャブラリー内の上記複数のベクトルとを比較することをさらに備えた、請求項1記載の符号化方法。
- RGBカラー空間からYCRCBカラー空間へ上記画像を伝送することをさらに備えた、請求項2記載の符号化方法。
- 上記比較の工程は、上記強度の範囲の実質上中央に近いYチャンネル値の画素マッチングに関して厳しい公差を使用することを備える、請求項3記載の符号化方法。
- 上記ベクトルを生成する工程は、上記画素の測定強度と、上記画素に近い3つの画素の平均Cチャンネル強度測定との間の差にて、Cチャンネルの前部の各画素における強度測定を置き換えることを備える、請求項3記載の符号化方法。
- 上記比較により、上記新たに生成されたベクトルと上記ボキャブラリー内に以前に格納されていたベクトルとの間で一致が確認されたときには、以前に格納されたベクトルを使用することをさらに備える、請求項2記載の符号化方法。
- 請求項2記載の符号化方法。
- 上記比較により、上記新たに生成されたベクトルと上記ボキャブラリー内に以前に格納されていたベクトルとの間で一致が確認されないときには、上記新たに生成されたベクトルを上記ボキャブラリーに追加する。
- 上記インデックスを付加する工程は、上記ボキャブラリー内の上記複数のベクトルをベクトルツリーデータ構造に加えることをさらに備える、請求項2記載の符号化方法。
- 上記比較の工程は、上記新たに生成されたベクトルと上記ベクトルツリーデータ構造とを比較することをさらに備える、請求項8記載の符号化方法。
- 上記ベクトルツリーデータ構造の各リーフノードは、上記ベクトルにおける次の寸法に関する別のベクトルツリーのルーツを備える、請求項8記載の符号化方法。
- ラインスキャンカメラにより画像を得ることをさらに備える、請求項1記載の符号化方法。
- 上記画像は、顕微鏡スライドガラスの少なくとも一部を有する、請求項1記載の符号化方法。
- カーネルは、上記画像の方形状の領域を備える、請求項1記載の符号化方法。
- ベクトルは、スカラーの1次元のアレイであり、各スカラーは、上記カーネル内の画素の色チャンネル強度を表す、請求項1記載の符号化方法。
- 上記インデックスを付加する工程は、一意の4バイトの整数をベクトルに付与することをさらに備える、請求項1記載の符号化方法。
- 上記分割、上記測定、上記ベクトル生成、及び上記格納の工程は、通信ネットワークを介してサーバーマシンに伝達用に接続されるクライエントマシンにて実行される、請求項2記載の符号化方法。
- 上記インデックス生成、上記付加、及び上記比較の工程は、上記サーバーマシンにて実行される、請求項16記載の符号化方法。
- 複数の画像特徴部ベクトルを備えたベクトルセットを生成し、ここで、上記ベクトルセットは画像特徴部に対応し、
画像の候補領域を特定し、ここで上記候補領域は複数の候補領域ベクトルを備え、
上記ベクトルセットにおける各画像特徴部により上記複数の候補領域ベクトルにおける各ベクトルに関する相関関係を決定し、
上記候補領域が上記画像特徴部を示す確率を決定するため上記相関関係を平均化する、
ことを備えた、コンピュータにて実行されるデジタル画像におけるパターンの認識方法。 - 上記決定する工程は、上記候補領域にてベクトルが観察される回数を全体にてベクトルが観察される回数で割ることをさらに備える、請求項18記載のパターン認識方法。
- 画像を複数のカーネルに分割するように構成された、ここで各カーネルは複数の画素を有する、画像区分部と、
各画素の強度値を測定するように構成された強度測定部と、
上記複数のカーネルのそれぞれに関してベクトルを生成するように構成された、ここでベクトルはカーネルにおける各画素の強度値を有する、スカラーコンパイラーと、
上記複数のカーネルに対応した複数のベクトルを格納するように構成されたボキャブラリーと、
上記複数のベクトルにおける各ベクトルに関してインデックスを生成するように構成されたインデックス付加部と、
上記複数のインデックスを格納するように構成された、ここで上記複数のインデックスは複数のベクトルに対応する、ベクトルインデックスファイルと、
を備えた、デジタル画像の符号化システム。 - 新たに生成されたベクトルと、上記ボキャブラリー内の上記複数のベクトルとを比較するように構成されたベクトル比較モジュールをさらに備えた、請求項20記載の符号化システム。
- 上記ベクトルインデックスファイル内のインデックス及び上記ボキャブラリー内の対応のベクトルから上記画像を再構成するように構成された画像デコーダーをさらに備えた、請求項21記載の符号化システム。
- 上記デジタル画像を取り込むための顕微鏡スライドガラススキャナーをさらに備えた、請求項21記載の符号化システム。
- 上記顕微鏡スライドガラススキャナーは、上記デジタル画像を取り込むラインスキャンセンサを備える、請求項23記載の符号化システム。
- 画像を複数のカーネルに分割する手段と、
上記複数のカーネルのそれぞれに関してベクトルを生成する手段と、
複数のベクトルをボキャブラリー内に格納する、ここで上記複数のベクトルは上記複数のカーネルに対応する、手段と、
上記複数のベクトルにおける各ベクトルに関してインデックスを生成する手段と、
複数のインデックスをベクトルインデックスファイルに格納する、ここで上記複数のインデックスは複数のベクトルに対応する、手段と、
を備えた、デジタル画像の符号化システム。
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CA2516894A1 (en) | 2004-09-16 |
US20070274603A1 (en) | 2007-11-29 |
US20090169118A1 (en) | 2009-07-02 |
US7844125B2 (en) | 2010-11-30 |
US7257268B2 (en) | 2007-08-14 |
US20040170325A1 (en) | 2004-09-02 |
JP4607100B2 (ja) | 2011-01-05 |
JP2011040073A (ja) | 2011-02-24 |
JP5113227B2 (ja) | 2013-01-09 |
EP1599824A1 (en) | 2005-11-30 |
WO2004079636A1 (en) | 2004-09-16 |
US7502519B2 (en) | 2009-03-10 |
EP1599824A4 (en) | 2008-02-27 |
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