JP7699249B2 - 手続き的な世界の生成 - Google Patents
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Description
本PCT国際出願は、2018年10月17日に出願された米国特許出願第16/163,478号の優先権の継続および主張であり、これは、2018年8月9日に出願された「Procedural World and Agent Generation」と題する米国仮特許出願第62/716,839の優先権を主張する。また、本PCT国際出願は、2018年10月17日に出願された米国特許出願第16/163,466号の優先権の継続および主張である。前述のすべての出願の内容全体は、参照により本明細書に組み込まれる。
さらに、ある例示において、模擬環境に関連付けられるセンサーデータは、(例えば、オクルージョン、ノイズ、ドリフトなどに起因して)実際の環境に関連付けられるセンサーデータより正確である場合があり、それ故、模擬環境は、実際の環境に関連して得られた観測を検証することに用いられてよい。ある例示において、模擬環境は、(例えば、自律走行車に搭載された1つまたは複数のセンサーシステムの)較正に用いられてよい。上記のように、本明細書で説明される技術は、さまざまな状況において、模擬環境を生成することおよび模擬環境に用いられることに向けられている。
A.コンピュータ実装方法は、実際の環境内で複数のデータ収集デバイスからセンサーデータを受信することと、実際の環境に関連付けられる道路ネットワークデータを実際の環境に関連付けられる道路ネットワークデータにアクセスすることと、少なくとも部分的にセンサーデータに基づいて実際の環境に関連付けられる道路メッシュを生成することと、道路ネットワークデータを道路メッシュと統合させて、模擬環境を生成することと、格納されたオブジェクトのフットプリントのデータストレージにアクセスすることと、格納されたオブジェクトのフットプリントのデータストレージから格納されたオブジェクトのフットプリントを選択することと、格納されたオブジェクトのフットプリントに対応する少なくとも1つのオブジェクトを模擬環境へとレンダリングすることと、少なくとも1つのオブジェクトに関連付けられる表面の詳細をレンダリングすることと、模擬環境を自律ロボットコンピューティングデバイスによって用いられるアルゴリズムのテスト、認証、または訓練のうちの少なくとも1つのために、ナビゲーション、プラニング、または意思決定のうちの少なくとも1つに対して出力することとを備える。
本明細書で説明される技術の1つまたは複数の例示が記載されているが、さまざまな変更、追加、置換、およびそれらの均等物が本明細書で説明される技術の範囲内に含まれる。
Claims (20)
- 1つまたは複数のプロセッサと、
実行された場合に、前記1つまたは複数のプロセッサに、
第1のアライメントとして、道路メッシュに関連付けられた第1の領域と、模擬環境に関連付けられた補足データに関連付けられた第2の領域とを整列させることと、
前記第1のアライメントに少なくとも部分的に基づいて、前記道路メッシュと前記補足データとの間の誤差を決定することと、
前記誤差に少なくとも部分的に基づいて、前記誤差を低減するための混合されたデータを生成するために前記道路メッシュ及び前記補足データを混合すること、または前記第1のアライメントと異なる第2のアライメントとして、前記道路メッシュを前記補足データと実質的に整列させるために前記道路メッシュを変形すること、のうちの少なくとも1つを実行することと、
前記混合することまたは前記変形することに少なくとも部分的に基づいて、自律ロボットコンピューティングデバイスによって使用される修正された模擬環境を出力することと、
を含む動作を実行させるコンピュータ実行可能命令を格納する1つまたは複数の非一時的なコンピュータ可読媒体と、
を備えるシステム。 - 前記補足データは、標高データを含む地理空間ファイルフォーマットを含む、請求項1に記載のシステム。
- 前記誤差は、単一の測定値、複数の測定値の平均値、領域にわたる最大値、領域にわたる最小値、または前記道路メッシュの第1の部分と前記補足データの第2の部分との間の差を表す合計誤差のうちの少なくとも1つを含む、請求項1に記載のシステム。
- 前記動作は、
前記誤差を誤差の閾値量と比較することと、
前記誤差の閾値量を超えない誤差に少なくとも部分的にさらに基づいて前記混合すること、または
前記誤差の閾値量の誤差を満たす、または超えることに少なくとも部分的に基づいて前記変形すること、
のうちの少なくとも1つを実行することと、をさらに含む、請求項1に記載のシステム。 - 前記動作は、前記混合することまたは前記変形することに少なくとも部分的に基づいて修正された模擬環境を生成すること、をさらに含む、請求項1に記載のシステム。
- 前記誤差は、垂直距離誤差または水平距離誤差である、請求項1に記載のシステム。
- 前記誤差は、前記道路メッシュの第1の部分と前記補足データの第2の部分との間の誤差を含む、請求項1に記載のシステム。
- コンピュータ実装方法であって、
第1のアライメントとして、道路メッシュに関連付けられた第1の領域と、模擬環境に関連付けられた補足データに関連付けられた第2の領域とを整列させるステップと、
前記第1のアライメントに少なくとも部分的に基づいて、前記道路メッシュと前記補足データとの間の誤差を決定するステップと、
前記誤差に少なくとも部分的に基づいて、前記誤差を低減するための混合されたデータを生成するために前記道路メッシュ及び前記補足データを混合するステップ、または前記第1のアライメントと異なる第2のアライメントとして、前記道路メッシュを前記補足データと実質的に整列させるために前記道路メッシュを変形するステップ、のうちの少なくとも1つを実行するステップと、
前記混合するステップまたは前記変形するステップに少なくとも部分的に基づいて、自律ロボットコンピューティングデバイスによって使用される修正された模擬環境を出力するステップと、
を含むコンピュータ実装方法。 - 前記補足データは、標高データを含む地理空間ファイルフォーマットを含む、請求項8に記載のコンピュータ実装方法。
- 前記模擬環境は、少なくとも1つのデータ収集デバイスからのセンサーデータから決定された実際の環境に関連付けられる、請求項8に記載のコンピュータ実装方法。
- 前記道路メッシュは、複数の3次元タイルを含む、請求項8に記載のコンピュータ実装方法。
- 前記誤差を誤差の閾値量と比較するステップと、
前記誤差の閾値量を超えない誤差に少なくとも部分的にさらに基づいて前記混合するステップ、または
前記誤差の閾値量の誤差を満たす、または超えることに少なくとも部分的に基づいて前記変形するステップ、
のうちの少なくとも1つを実行するステップと、をさらに含む、請求項8に記載のコンピュータ実装方法。 - 前記道路メッシュと前記補足データとの間の前記誤差を決定するステップは、前記道路メッシュと前記補足データとの間の前記誤差を定期的に測定して、複数の測定値の平均値、領域にわたる最大値、または領域にわたる最小値を決定するステップを含む、請求項8に記載のコンピュータ実装方法。
- 前記誤差を測定するステップは、前記道路メッシュ内の指定された位置で前記誤差を測定するステップを含み、
前記指定された位置は、道路中心線を含む、請求項8に記載のコンピュータ実装方法。 - 前記混合するステップは、前記道路メッシュと前記補足データとを混合するためのグローバル混合、ローカル混合、線形混合、滑らかな曲線混合のうちの少なくとも1つを含む、請求項8に記載のコンピュータ実装方法。
- 混合のレベルが、前記道路メッシュの中心線と前記補足データの領域との間の距離に少なくとも部分的に基づいている、請求項8に記載のコンピュータ実装方法。
- 前記道路メッシュの境界と前記補足データの境界との間の遷移を平滑化するステップをさらに含む、請求項8に記載のコンピュータ実装方法。
- 前記補足データは、第三者のソースまたはシステムによって収集された標高データを含む、請求項8に記載のコンピュータ実装方法。
- 前記補足データは、米国地質調査所(USGS)データ評価モデル(DEM)標準に関連付けられた地理空間ファイルフォーマットを含む、請求項8に記載のコンピュータ実装方法。
- 前記補足データは、少なくとも1つのオクルージョンのために少なくとも1つのデータ収集デバイスが利用できない実際の環境に関連付けられた情報を提供する、請求項8に記載のコンピュータ実装方法。
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