JP2023033168A - 複数のイメージセンサを含む映像獲得装置、それを含む電子装置、及び映像獲得装置の制御方法 - Google Patents
複数のイメージセンサを含む映像獲得装置、それを含む電子装置、及び映像獲得装置の制御方法 Download PDFInfo
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Abstract
Description
110 第1センサ層
120 カラーフィルタ
130 第1マイクロレンズアレイ
190 第1イメージング光学系
200 第2イメージセンサ
210 第2センサ層
220 分光フィルタ
230 第2マイクロレンズアレイ
290 第2イメージング光学系
300 第1メモリ
310 第2メモリ
500 プロセッサ
510 映像整合部
520 照明推定部
530 色相変換部
700 映像抽出部
1000 映像獲得装置
Claims (20)
- 第1波長帯域に基づく第1映像を獲得する第1イメージセンサと、
10nmないし1,000nmの第2波長帯域に基づく第2映像を獲得する第2イメージセンサと、
前記第1イメージセンサ及び前記第2イメージセンサからそれぞれ出力された前記第1映像と前記第2映像とを整合し、前記第2映像から推定された照明値を利用し、前記整合された映像について色変換を行うプロセッサと、を含む、映像獲得装置。 - 前記プロセッサは、
前記第1映像を一または複数の領域に分割し、
前記第1映像の分割されたそれぞれの領域に対応する第2映像の領域毎に、それぞれの照明値を推定し、
前記第2映像の領域毎に推定されたそれぞれの照明値を利用し、前記第1映像の分割されたそれぞれの領域について前記色変換を行う、請求項1に記載の映像獲得装置。 - 前記プロセッサは、
前記第2映像の領域毎に推定されたそれぞれの照明値のうち、隣接した領域の照明値との差が第1臨界値以上である場合、
前記差が、前記第1臨界値より小さくなるように、隣接した領域の照明値のうち、いずれか1つの照明値を調整する、請求項2に記載の映像獲得装置。 - 前記プロセッサは、
前記色変換を行った後、前記隣接した領域の境界部分につき、後処理を行う、請求項3に記載の映像獲得装置。 - 前記プロセッサは、
前記第1イメージセンサ及び前記第2イメージセンサそれぞれの解像度、画角及び焦点距離のうちの少なくとも一つに基づいて、前記第1映像と前記第2映像との整合のためのパラメータを算出する、請求項1に記載の映像獲得装置。 - 前記プロセッサは、
前記第2イメージセンサから出力された複数のチャネルから得られたスペクトル情報を利用し、前記照明値を推定する、請求項1に記載の映像獲得装置。 - 前記プロセッサは、
既定の照明値に係わる第2映像が学習されたニューラルネットワークを利用し、前記第2イメージセンサから獲得された第2映像に係わる前記照明値を推定する、請求項1に記載の映像獲得装置。 - 前記プロセッサは、
前記第1映像及び前記第2映像それぞれの特徴を抽出し、前記抽出された特徴をマッチングさせることにより、前記第1映像と前記第2映像との整合を行う、請求項1に記載の映像獲得装置。 - 前記プロセッサは、
前記第1映像及び前記第2映像の画素グループ単位、画素単位またはサブ画素単位でもって、前記第1映像と前記第2映像との整合を行う、請求項1に記載の映像獲得装置。 - 前記第1イメージセンサは、
複数の第1センシング要素がアレイされた第1センサ層と、
前記第1センサ層上に配され、交互配列された赤色フィルタ、緑色フィルタ、青色フィルタを含むカラーフィルタと、を具備する第1画素アレイを含み、
前記第2イメージセンサは、
複数の第2センシング要素がアレイされた第2センサ層と、
前記第2センサ層上に配され、透過波長帯域が異なる複数のユニットフィルタからなるフィルタグループが反復配列された分光フィルタと、を具備する第2画素アレイを含む、請求項1に記載の映像獲得装置。 - 前記複数のユニットフィルタそれぞれの透過波長帯域は、
可視光線を含み、可視光線より広い範囲の波長帯域であり、
前記フィルタグループは、4×4アレイ形態に配列される16個のユニットフィルタを含む、請求項10に記載の映像獲得装置。 - 前記第1画素アレイと前記第2画素アレイは、同じ回路基板上に、水平に離隔されて配される、請求項10に記載の映像獲得装置。
- 前記第1センサ層からの信号を処理する第1回路要素と、前記第2センサ層からの信号を処理する第2回路要素とが、前記回路基板に具備される、請求項12に記載の映像獲得装置。
- 前記第1回路要素、前記第2回路要素の動作を同期させるタイミングコントローラをさらに含む、請求項13に記載の映像獲得装置。
- 前記第1映像に係わるデータを保存する第1メモリと、
前記第2映像に係わるデータを保存する第2メモリと、をさらに含む、請求項12に記載の映像獲得装置。 - 前記第1メモリ及び前記第2メモリが、前記回路基板内に具備される、請求項15に記載の映像獲得装置。
- 被写体の光学像を前記第1イメージセンサに形成するものであり、1以上のレンズを含む第1イメージング光学系と、
前記被写体の光学像を前記第2イメージセンサに形成するものであり、1以上のレンズを含む第2イメージング光学系と、をさらに含む、請求項1に記載の映像獲得装置。 - 前記第1イメージング光学系と前記第2イメージング光学系は、同じ焦点距離、及び同じ画角を有するように設定される、請求項17に記載の映像獲得装置。
- 請求項1ないし18のうちいずれか1項に記載の映像獲得装置を含む、電子装置。
- 複数のイメージセンサを利用した映像獲得装置の制御方法において、
第1イメージセンサ及び第2イメージセンサからそれぞれ第1映像及び第2映像を獲得する段階と、
前記獲得された第1映像と第2映像とを整合する段階と、
前記第2映像から推定された照明値を利用し、前記整合された映像について色変換を行う段階と、を含む、映像獲得装置の制御方法。
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