JP2019035736A - 航空機用レーザスペックルのシステム及び方法 - Google Patents
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Abstract
Description
Claims (15)
- 複数の点群をレジストレーションするためのシステムであって、前記システムは、
第1のレーザスペックルパターン(308、400)を表面(206)上に投影するスペックル生成器(202)と、
前記表面(206)をスキャンするための少なくとも1つの3次元(3D)スキャナ(112)であって、前記表面(206)の複数の点群を生成し且つ前記第1のレーザスペックルパターン(308、400)の少なくとも一部を画像化するように構成された少なくとも1つの3Dスキャナ(112)と、
少なくとも部分的に前記第1のレーザスペックルパターン(308、400)に基づいて、前記複数の点群をレジストレーションして前記表面(206)の3Dモデルを生成するために、前記少なくとも1つの3Dスキャナ(112)に通信可能に連結されたプロセッサ(116)とを備える、システム。 - 前記スペックル生成器(202)は、レーザビームを生成するレーザ源(302)と、前記レーザビームを複数の次数の複数のレーザビームに回折させる光学要素(304)であって、前記複数のレーザビームが前記第1のレーザスペックルパターン(308、400)を画定する、光学要素(304)とを含む、請求項1に記載のシステム。
- 前記少なくとも1つの3次元(3D)スキャナ(112)は、ディフューザー(208)及び、前記プロセッサ(116)と通信可能に連結された下向きのカメラであって、前記ディフューザー(208)の第1の表面(206)を画像化するように構成された下向きのカメラを有する、航空機(100)に連結されている、請求項1に記載のシステム。
- 前記スペックル生成器(202)は、前記ディフューザー(208)の第2の表面(206)上に第2のレーザスペックルパターン(308、400)を投影するように構成されている、請求項3に記載のシステム。
- 前記プロセッサ(116)は、前記第1のレーザスペックルパターン(308、400)から複数のランダムな最近隣点(402)を選択することによって、スペックルパターン(308、400)を特定するように構成されている、請求項1に記載のシステム。
- 前記プロセッサ(116)は、前記スペックルパターン(308、400)を複数の既知のスペックルパターン(308、400)と比較して、前記複数の既知のスペックルパターン(308、400)から最もマッチするスペックルパターン(308、400)を特定するように構成されている、請求項5に記載のシステム。
- 前記スペックル生成器(202)の物理的な位置が既知になっており、前記プロセッサ(116)は、前記最もマッチするスペックルパターン(308、400)に少なくとも部分的に基づいて、前記スペックル生成器(202)に対する航空機(100)の位置を同定するように構成されている、請求項6に記載のシステム。
- 前記プロセッサ(116)は、少なくとも部分的に前記第1のレーザスペックルパターン(308、400)に基づいて、前記複数の点群に関する概略のレジストレーションを実施するように構成されている、請求項1に記載のシステム。
- 前記プロセッサ(116)は、2つの点群間の差異を最小化するための1つ以上のアルゴリズムを用いて、前記複数の点群に関する精細なレジストレーションを実施するように構成されている、請求項8に記載のシステム。
- 着陸ゾーン内で航空機(100)用の接地ゾーンを特定するためのシステムであって、
表面(206)上にレーザスペックルパターン(308、400)を投影するために前記着陸ゾーンに配置されたスペックル生成器(202)であって、レーザビームを生成するレーザ源(302)及び、前記レーザビームを、前記レーザスペックルパターン(308、400)を画定する複数の次数の複数のレーザビームに回折させる光学要素(304)を含む、スペックル生成器(202)と、
前記航空機(100)に連結される少なくとも1つの光学的キャプチャ装置であって、前記表面(206)上に投影された前記レーザスペックルパターン(308、400)の少なくとも一部を画像化するように構成された少なくとも1つの光学的キャプチャ装置と、
少なくとも部分的に前記レーザスペックルパターン(308、400)の前記少なくとも一部に基づいて、前記着陸ゾーン内の前記接地ゾーンに対する前記航空機(100)の位置を同定するために、前記少なくとも1つの光学的キャプチャ装置に通信可能に連結されたプロセッサ(116)とを備える、システム。 - 前記航空機(100)は、第1の平面内に存在する第1の表面(206)と、前記第1の平面にほぼ平行な第2の平面内に存在する第2の表面(206)を有する不透明なディフューザー(208)であって、前記不透明なディフューザー(208)の前記第2の表面(206)が、上に投影された前記レーザスペックルパターン(308、400)を有する表面(206)である、不透明なディフューザー(208)を備えている、請求項10に記載のシステム。
- 前記少なくとも1つの光学的キャプチャ装置は、前記第2の表面(206)上に投影された前記レーザスペックルパターン(308、400)をキャプチャするために、前記不透明なディフューザー(208)の前記第1の表面(206)を画像化するように構成された下向きのカメラである、請求項11に記載のシステム。
- 前記プロセッサ(116)は、少なくとも部分的に、前記レーザスペックルパターン(308、400)の少なくとも一部に基づいて、前記航空機(100)を前記接地ゾーンに着陸させる命令を生成するように構成されている、請求項10に記載のシステム。
- 前記プロセッサ(116)は、少なくとも部分的に、既知の座標系における前記レーザスペックルパターン(308、400)の位置に基づいて、前記航空機(100)の横位置を決定するように構成されている、請求項10に記載のシステム。
- 前記レーザスペックルパターン(308、400)は、複数の点(402)を含んでおり、前記プロセッサ(116)は、(1)前記複数の点(402)のうちの少なくとも1つの直径を測定することによって、第2のレーザスペックルパターン(308、400)の点のサイズを決定するか、または(2)前記複数の点(402)のうちの少なくとも2つの間の距離を測定することによって、点の距離を決定するように構成されている、請求項10に記載のシステム。
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Application Number | Priority Date | Filing Date | Title |
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US15/645,148 US10527711B2 (en) | 2017-07-10 | 2017-07-10 | Laser speckle system and method for an aircraft |
US15/645,148 | 2017-07-10 |
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JP2019035736A true JP2019035736A (ja) | 2019-03-07 |
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US (2) | US10527711B2 (ja) |
EP (1) | EP3435282B1 (ja) |
JP (1) | JP7175652B2 (ja) |
KR (1) | KR102669474B1 (ja) |
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