JP6423449B2 - 口内走査のためのシステムの作動方法 - Google Patents
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Description
本特許出願は、米国特許法119条(e)の下で、2014年5月7日出願の米国仮特許出願第61/990004号の利益を主張するものであり、上記仮特許出願は参照により本出願に援用される。
105 計算デバイス
108 口内走査アプリケーション
110 データストア
115 関心領域識別モジュール
118 フラグ付けモジュール
120 訓練モジュール
125 モデル生成モジュール
135 口内画像データ
138 基準データ
150 スキャナ
700 コンピュータデバイス
702 処理デバイス
704 メインメモリ
706 スタティックメモリ
708 バス
710 ビデオ表示ユニット
712 英数字入力デバイス
714 カーソル制御デバイス
720 信号生成デバイス
722 ネットワークインタフェースデバイス
724 コンピュータ可読ストレージ媒体
726 命令
728 データストレージデバイス
750 口内走査アプリケーション
764 ネットワーク
Claims (23)
- 口内走査のためのシステムの作動方法であって、
前記システムの処理デバイスが、口内走査セッション中に歯科的部位の第1の口内画像を受信するステップ;
前記処理デバイスが、前記第1の口内画像から第1の口内関心領域候補を識別するステップ;
前記処理デバイスが、前記第1の口内関心領域候補に関連する値を決定するステップ;
前記処理デバイスが、前記口内走査セッション中に、前記歯科的部位の第2の口内画像を受信するステップ;
前記処理デバイスが、前記第1の口内画像と前記第2の口内画像を比較するステップ;
前記処理デバイスが、a)前記第2の口内画像が前記第1の口内関心領域候補を承認すること、及び、b)前記値が閾値を超えることを決定することに応じて、前記第1の口内関心領域候補を口内関心領域として確認するステップ;及び
前記処理デバイスが、前記口内走査セッション中に、前記口内関心領域の指標を提供するステップを行う、
口内走査のためのシステムの作動方法。 - 前記第1の口内関心領域候補を前記口内関心領域として確認する前記ステップは:
前記第1の口内画像及び前記第2の口内画像が共有する幾何学的特徴に基づいて、前記第1の口内画像と前記第2の口内画像との間の整列を決定するステップ;並びに
前記第2の口内画像が、前記第1の口内関心領域候補に対応する表面を備えていないことを決定するステップ
を含む、請求項1に記載の口内走査のためのシステムの作動方法。 - 前記処理デバイスが、前記第1の口内画像から第2の口内関心領域候補を識別するステップ;
前記処理デバイスが、前記第1の口内画像に対する前記第2の口内画像の比較に基づき、前記第2の口内関心領域候補が前記第2の口内画像の表面に対応することを決定するステップ;及び
前記処理デバイスが、前記決定の実施に応答して、前記第2の口内関心領域候補は追加の口内関心領域ではないと結論付けるステップを行う、
請求項1又は2に記載の口内走査のためのシステムの作動方法。 - 前記第1の口内関心領域候補を識別する前記ステップは:
ある基準を満たす、前記第1の口内画像内の複数のボクセルを識別するステップ;
互いに近接している前記複数のボクセルのサブセットを決定するステップ;及び
前記複数のボクセルの前記サブセットを、前記第1の口内関心領域候補を含むボリュームへとグループ化するステップ
を含む、請求項1から3のいずれか一項に記載の口内走査のためのシステムの作動方法。 - 前記基準は、画像データの欠如を含み、
前記第1の口内関心領域候補は、前記第1の口内画像中のボイドを含む、請求項4に記載の口内走査のためのシステムの作動方法。 - 前記処理デバイスが、前記第1の口内画像又は前記第2の口内画像のうちの少なくとも一方において、前記ボイドを取り囲む幾何学的特徴に基づいて、前記ボイドに関する形状を内挿するステップであって、前記口内関心領域の前記指標は前記ボイドの前記形状を含む、ステップを行う、請求項5に記載の口内走査のためのシステムの作動方法。
- 前記処理デバイスが、前記口内走査セッションの完了後に、複数の口内画像に基づいて、前記歯科的部位の仮想モデルを計算するステップであって、前記複数の口内画像は、前記第1の口内画像及び前記第2の口内画像を含む、ステップを行う、請求項1から6のいずれか一項に記載の口内走査のためのシステムの作動方法。
- 前記処理デバイスが、前記口内関心領域に対応する領域を含む、新規の口内画像を受信するステップ;
前記処理デバイスが、前記新規の口内画像と、前記第1の口内画像又は前記第2の口内画像のうちの少なくとも一方との間の整列を決定するステップ;
前記処理デバイスが、前記口内関心領域が、前記新規の口内画像内の前記領域の表面に対応することを決定するステップ;及び
前記処理デバイスが、前記口内関心領域の指標を除去するステップを行う、
請求項1から7のいずれか一項に記載の口内走査のためのシステムの作動方法。 - 前記口内関心領域の前記指標は、前記口内関心領域を指示するフラグを含み、
前記口内関心領域は、前記歯科的部位の1つ又は複数の視野において隠れており、
前記フラグは前記1つ又は複数の視野において視認可能である、請求項1から8のいずれか一項に記載の口内走査のためのシステムの作動方法。 - 前記処理デバイスが、前記第1の口内画像及び前記第2の口内画像を生成した口内スキャナのユーザにフィードバックを提供するステップであって、前記フィードバックは、前記口内走査セッションの品質を改善する、前記口内スキャナの運動又は前記口内スキャナの速度のうちの少なくとも一方の変化を示す、ステップを行う、請求項1から9のいずれか一項に記載の口内走査のためのシステムの作動方法。
- 前記口内関心領域は、前記第1の口内画像と前記第2の口内画像との間の衝突表面を含む、請求項1から10のいずれか一項に記載の口内走査のためのシステムの作動方法。
- 前記第1の口内関心領域候補を口内関心領域として確認する前記ステップは:
前記口内関心領域候補が、幾何学的基準から外れた1つ又は複数の寸法を有することを決定するステップ
を更に含む、請求項1から11のいずれか一項に記載の口内走査のためのシステムの作動方法。 - 口内走査のためのシステムの作動方法であって、
前記システムの処理デバイスが、歯科的部位の複数の口内画像を受信するステップ;
前記処理デバイスが、前記複数の口内画像に基づき、ある基準を満たす複数のボクセルを識別するステップ;
前記処理デバイスが、互いに近接している前記複数のボクセルのサブセットを決定するステップ;
前記処理デバイスが、前記複数のボクセルの前記サブセットを、口内関心領域へとグループ化するステップ;及び
前記処理デバイスが、前記口内関心領域の指標を生成するステップであって、前記口内関心領域は、前記歯科的部位の1つ又は複数の視野において隠れており、前記口内関心領域の前記指標は、前記1つ又は複数の視野において視認可能である、ステップを行う、
口内走査のためのシステムの作動方法。 - 前記処理デバイスが、前記口内関心領域に関する分類を決定するステップ;
前記処理デバイスが、前記分類に基づいて、文、色又はアイコンのうちの少なくとも1つを決定するステップ;及び
前記処理デバイスが、前記文、前記色又は前記アイコンのうちの少なくとも1つを用いて、前記指標中で前記口内画像に関する前記分類を提示するステップを行う、
請求項13に記載の口内走査のためのシステムの作動方法。 - 前記処理デバイスが、最初に実施された前記歯科的部位の第1の走査セッションに基づいて、前記歯科的部位の第1の仮想モデルを生成するステップ;
前記処理デバイスが、2回目に実施された前記歯科的部位の第2の走査セッションに基づいて、前記歯科的部位の第2の仮想モデルを生成するステップであって、前記歯科的部位の前記複数の口内画像は、前記第2の走査セッションに関連している、ステップ;及び
前記処理デバイスが、前記第1の仮想モデルに対する前記第2の仮想モデルの比較に基づいて、前記歯科的部位の変化を決定するステップであって、前記口内関心領域は前記変化を含む、ステップを行う、
請求項13又は14に記載の口内走査のためのシステムの作動方法。 - 前記変化は、齲歯、歯肉の後退、歯の摩耗、歯の破損、歯肉の疾患、歯肉の色、痣、病変、歯の色調、歯の色、歯列矯正整列の改善又は歯列矯正整列の劣化のうちの少なくとも1つを含む、請求項15に記載の口内走査のためのシステムの作動方法。
- 前記処理デバイスが、前記複数の口内画像に基づいて、前記歯科的部位の仮想モデルを生成するステップであって、前記口内関心領域は、前記仮想モデルから決定される、ステップを行う、請求項13から16のいずれか一項に記載の口内走査のためのシステムの作動方法。
- 前記処理デバイスが、仮想モデルを生成することなく、前記複数の口内画像のうちの2つ以上の整列を決定するステップ;及び
前記処理デバイスが、前記2つ以上の口内画像の比較に基づいて、前記口内関心領域を識別するステップを行う、
請求項13から16のいずれか一項に記載の口内走査のためのシステムの作動方法。 - 前記複数のボクセルの前記サブセットを、前記口内関心領域へとグループ化する前記ステップは:
前記複数のボクセルを口内関心領域候補へとグループ化するステップ;
前記口内関心領域候補の幾何学的特徴に基づいて、前記口内関心領域候補が臨床的重要性を有するかどうかを決定するステップ;及び
前記口内関心領域候補が臨床的重要性を有するとの決定に応答して、前記口内関心領域候補を前記口内関心領域として確認するステップ
を含む、請求項13から18のいずれか一項に記載の口内走査のためのシステムの作動方法。 - 前記口内関心領域は、再走査するべき口内領域、歯科的病変が示唆される口内領域、歯科的改善が示唆される口内領域、歯科的劣化が示唆される口内領域、又は異物が示唆される口内領域のうちの少なくとも1つを含む、請求項13から19のいずれか一項に記載の口内走査のためのシステムの作動方法。
- 前記口内関心領域の前記指標は、再走査シーケンス、臨床的重要性又はサイズのうちの少なくとも1つを含む、請求項13から20のいずれか一項に記載の口内走査のためのシステムの作動方法。
- 前記処理デバイスが、1つ以上の患者の症例の詳細に基づいて前記閾値を選択するステップを行い、前記1つ以上の患者の症例の詳細は、前記歯科的部位の処置を含む、請求項1に記載の口内走査のためのシステムの作動方法。
- 前記値は、前記口内関心領域候補のサイズに少なくとも部分的に基づいて決定され、前記閾値を選択するステップは、
前記処置が歯列矯正処置又は歯科補綴処置であることを決定するステップ;
前記処置が歯列矯正処置であると決定することに応じて第1の閾値を選択するステップ;及び
前記処置が歯科補綴処置であると決定することに応じて第2の閾値を選択するステップを含む、請求項22に記載の口内走査のためのシステムの作動方法。
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