JP7140849B2 - 確率的オブジェクト追跡及び予測フレームワーク - Google Patents
確率的オブジェクト追跡及び予測フレームワーク Download PDFInfo
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Description
車両1954が車線1953Aに移動するように、経路1956に対応する「左車線への変更」)を関連付け得る。
P(p、t=T+dt)=(t=T+dtにおける測定尤度)*P(p、t=T) (2)
Claims (18)
- 自律走行車による世界オブジェクトの追跡及び予測のための方法であって、
前記自律走行車のプロセッサによって、前記自律走行車のセンサから第1の観測データを受信するステップと、
前記プロセッサによって、前記第1の観測データを第1の世界オブジェクトに関連付けるステップであって、
前記プロセッサによって、前記第1の観測データの周囲のゲート領域を使用して、前記ゲート領域内において複数の世界オブジェクトを検索することであって、前記複数の世界オブジェクトは、車両交通ネットワークの複数のユーザであり、かつ前記自律走行車のモジュールに維持されていることであって、前記複数の世界オブジェクトに各予測位置が関連付けられており、前記第1の観測データを受信したときの前記複数の世界オブジェクトの前記各予測位置が前記ゲート領域内にあるという決定に基づいて、前記複数の世界オブジェクトは前記ゲート領域内にあると決定されること、及び
第1の世界オブジェクトが前記複数の世界オブジェクトに含まれる場合、前記プロセッサによって、前記第1の世界オブジェクトの動力学に基づいて前記第1の観測データが前記第1の世界オブジェクトに対応する関連付け尤度を決定すること
によって行われるステップと、
前記プロセッサによって、前記第1の世界オブジェクトに関する複数の仮説を決定するステップであって、各仮説が前記第1の世界オブジェクトの各意図に対応するステップと、
前記プロセッサによって、前記各仮説の各仮説尤度を決定するステップであって、前記各仮説尤度は、前記第1の世界オブジェクトが前記各仮説尤度に対応する意図に従う尤度を示すステップと、
前記プロセッサによって、前記複数の仮説のうちの少なくとも1つの仮説について、各状態を決定するステップであって、前記各状態は前記第1の世界オブジェクトの予測位置を含むステップと、
前記プロセッサによって、クエリに応答して、前記各仮説の前記各仮説尤度に基づいて前記少なくとも1つの仮説のうちの1つの仮説を提供するステップと
を含む、方法。 - 前記複数の仮説のうちの1つの仮説は、地図情報を使用して決定される、請求項1に記載の方法。
- 前記自律走行車の前記センサから第2の観測データを受信するステップと、
前記第2の観測データを前記第1の世界オブジェクトに関連付けるステップと、
前記第2の観測データに基づいて前記各状態を更新するステップと
をさらに含む、請求項1に記載の方法。 - 前記第1の世界オブジェクトの運動モデルに基づいて、前記複数の仮説の少なくとも一部に関して各軌道を予測するステップ
をさらに含む、請求項1に記載の方法。 - 前記第1の世界オブジェクトの前記運動モデルに基づいて、前記各軌道を予測するステップは、
軌道プランナを使用して、前記第1の世界オブジェクトに関する基準走行線を決定すること、及び
前記第1の世界オブジェクトの現在の予測経路が基準走行線と一致するように、前記運動モデルに基づいて前記各軌道を予測すること
を含む、請求項4に記載の方法。 - 前記自律走行車の前記センサから第2の観測データを受信するステップと、
前記第2の観測データを、前記第1の世界オブジェクト及び第2の世界オブジェクトのうちの1つに関連付けるステップと
をさらに含む、請求項4に記載の方法。 - 前記関連付け尤度に基づいて前記各仮説の前記各仮説尤度を更新するステップと、
前記第1の世界オブジェクトの前記各状態を更新するステップと
をさらに含む、請求項6に記載の方法。 - 前記自律走行車の前記センサから第2の観測データを受信するステップと、
前記第2の観測データが基準を満たすことを条件として、前記第2の観測データを第2の世界オブジェクトに関連付けるステップと、
前記第2の観測データが前記基準を満たさないことを条件として、前記第2の観測データを無視するステップと
をさらに含む、請求項1に記載の方法。 - 自律走行車による世界オブジェクトの追跡及び予測のためのシステムであって、
世界モデルモジュールを備えており、前記世界モデルモジュールは、
前記自律走行車のセンサから第1の観測データを受信すること、
前記第1の観測データを第1の世界オブジェクトに関連付けることであって、
前記第1の観測データの周囲のゲート領域を使用して、前記ゲート領域内において複数の世界オブジェクトを検索することであって、前記複数の世界オブジェクトに各予測位置が関連付けられており、前記第1の観測データを受信したときの前記複数の世界オブジェクトの前記各予測位置が前記ゲート領域内にあるという決定に基づいて、前記複数の世界オブジェクトは前記ゲート領域内にあると決定されること、及び
第1の世界オブジェクトが前記複数の世界オブジェクトに含まれる場合、前記第1の世界オブジェクトの動力学に基づいて前記第1の観測データが前記第1の世界オブジェクトに対応する関連付け尤度を決定すること
を含むこと、
前記第1の世界オブジェクトに関する複数の仮説を決定することであって、各仮説が前記第1の世界オブジェクトの各可能な経路に対応し、前記可能な経路は前記第1の世界オブジェクトが横断する道路の車線構造に基づいて決定されること、
前記各仮説の各仮説尤度を決定することであって、前記仮説尤度は前記第1の世界オブジェクトが前記可能な経路に従う尤度を示すこと、
前記複数の仮説のうちの少なくとも1つの仮説について、各状態を決定することであって、前記各状態は前記第1の世界オブジェクトの予測位置を含むこと、及び
クエリに応答して、前記各仮説の前記各仮説尤度に基づいて前記少なくとも1つの仮説のうちの1つの仮説を提供すること
を行うように構成される、システム。 - 前記複数の仮説の中の1つの仮説は、地図情報を使用して決定される、請求項9に記載のシステム。
- 前記世界モデルモジュールは、
前記自律走行車の前記センサから第2の観測データの受信すること、前記第2の観測データを前記第1の世界オブジェクトに関連付けること、及び
前記第2の観測データに基づいて前記各状態を更新すること
を行うようにさらに構成される、請求項9に記載のシステム。 - 前記世界モデルモジュールは、
前記第1の世界オブジェクトの運動モデルに基づいて、前記複数の仮説の少なくとも一部に関して各軌道を予測すること
を行うようにさらに構成される、請求項9に記載のシステム。 - 前記第1の世界オブジェクトの前記運動モデルに基づいて、前記各軌道を予測することは、
軌道プランナを使用して、前記第1の世界オブジェクトに関する基準走行線を決定すること、及び
前記第1の世界オブジェクトの現在の予測経路が基準走行線と一致するように、前記運動モデルに基づいて前記各軌道を予測すること
を含む、請求項12に記載のシステム。 - 前記世界モデルモジュールは、
前記自律走行車の前記センサから第2の観測データを受信すること、及び
前記第2の観測データを、前記第1の世界オブジェクト及び第2の世界オブジェクトのうちの1つに関連付けること
を行うようにさらに構成される、請求項12に記載のシステム。 - 前記世界モデルモジュールは、
前記関連付け尤度に基づいて前記各仮説の前記各仮説尤度を更新すること、及び
前記第1の世界オブジェクトの前記各状態を更新すること
を行うようにさらに構成される、請求項14に記載のシステム。 - 前記世界モデルモジュールは、
前記自律走行車の前記センサから第2の観測データを受信すること、
前記第2の観測データが基準を満たすことを条件として、前記第2の観測データを第2の世界オブジェクトに関連付けること、及び
前記第2の観測データが前記基準を満たさないことを条件として、前記第2の観測データを無視すること
を行うようにさらに構成される、請求項9に記載のシステム。 - 自律走行車による世界オブジェクトの追跡及び予測のためのシステムであって、
世界モデルモジュールを備えており、前記世界モデルモジュールは、
複数の実世界オブジェクトに関する複数の仮説をそれぞれ作成及び維持することであって、前記複数の実世界オブジェクトは、前記自律走行車と共に、車両交通ネットワークの複数のユーザであること、
前記実世界オブジェクトに関する各軌道を予測すること、
受信したセンサ観測の周囲のゲート領域を使用して、前記ゲート領域内において複数の世界オブジェクトを検索する動作であって、前記複数の世界オブジェクトに各予測位置が関連付けられており、前記受信したセンサ観測を受信したときの前記複数の世界オブジェクトの前記各予測位置が前記ゲート領域内にあるという決定に基づいて、前記複数の世界オブジェクトは前記ゲート領域内にあると決定される動作、及び前記複数の実世界オブジェクトの少なくとも1つが前記複数の世界オブジェクトに含まれる場合、前記複数の実世界オブジェクトの少なくとも1つの動力学に基づいて前記受信したセンサ観測が前記複数の実世界オブジェクトの少なくとも1つに対応する関連付け尤度を決定する動作によって、前記受信したセンサ観測を前記複数の実世界オブジェクトの少なくとも1つと関連付けること、
前記複数の仮説の少なくとも1つの各尤度を更新することであって、前記各尤度は、前記複数の仮説の少なくとも1つに関連付けられる前記複数の実世界オブジェクトのうちの1つの世界オブジェクトが前記仮説によって示された軌道に従う尤度を示すこと、及び
前記複数の仮説の前記少なくとも1つに関連する各状態を更新することであって、前記各状態は、前記複数の仮説の少なくとも1つに関連する前記複数の実世界オブジェクトの1つ以上の予測位置を含むこと
を行うように構成される、システム。 - 前記世界モデルモジュールは、
新しいセンサ観測を受信すること、及び
前記新しいセンサ観測に基づいて新しい実世界オブジェクトを作成すること
を行うようにさらに構成される、請求項17に記載のシステム。
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