JP7114666B2 - 構造化照明画像およびレギュラー画像をキャプチャするための単一イメージセンサ - Google Patents
構造化照明画像およびレギュラー画像をキャプチャするための単一イメージセンサ Download PDFInfo
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Description
140:カウンタ
150:レジスタ
310:画素アレイ
320:出力回路
330:アナログ/デジタル変換器
340a、340b:タイミング制御回路
Claims (7)
- 受け付けた光エネルギーに応じて画素信号を生成し、受け付けた光のエネルギーによって前記画素信号の電圧レベルが決められる画素アレイと、
前記画素アレイに接続されて前記画素アレイが生成した前記画素信号をアクセスする少なくとも1つの出力回路と、
第2ダイナミックレンジ、および、前記第2ダイナミックレンジよりも低減された第1ダイナミックレンジを有する少なくとも1つのアナログ/デジタル変換器と、
前記画素アレイ、前記少なくとも1つの出力回路、前記少なくとも1つのアナログ/デジタル変換器、またはそれらの組み合わせに接続される少なくとも1つのタイミング制御回路と、を備え、
前記少なくとも1つのタイミング制御回路は、
前記画素アレイにより、第1フレーム期間において、第1リセット信号を前記画素アレイに印加することにより前記画素アレイの画素列をリセットして、前記画素アレイの前記画素列を構造化照明に露出して第1アナログ信号を生成し、前記少なくとも1つのアナログ/デジタル変換器を用いて前記画素アレイの前記画素列からの前記第1アナログ信号を構造化照明画像の第1デジタル出力信号に変換することにより、コモン画像平面に形成される前記構造化照明画像をキャプチャし、
前記画素アレイにより、前記第1フレーム期間よりも長い第2フレーム期間において、第2リセット信号を前記画素アレイに印加することにより前記画素アレイの前記画素列をリセットして、前記画素列を非構造化照明に露出して第2アナログ信号を形成し、前記少なくとも1つのアナログ/デジタル変換器を用いて前記画素列からの第2アナログ信号をレギュラー画像の第2デジタル出力信号に変換することにより、前記コモン画像平面と同じ画像平面に形成される前記レギュラー画像をキャプチャする、ように構成され、
前記構造化照明画像は、前記レギュラー画像よりも前または後にキャプチャされ、前記レギュラー画像に関する深度または形状の情報の導出に用いられ、
前記少なくとも1つのタイミング制御回路は、前記第1ダイナミックレンジおよび前記レギュラー画像よりも低い空間解像度で前記構造化照明画像をキャプチャするように構成される、
統合イメージセンサ。 - 前記少なくとも1つのアナログ/デジタル変換器は、前記第1および第2ダイナミックレンジ両方を提供できる設定可能なアナログ/デジタル変換器である請求項1に記載の統合イメージセンサ。
- 前記少なくとも1つのアナログ/デジタル変換器は、前記第1および第2ダイナミックレンジをそれぞれ提供する2つのアナログ/デジタル変換器を有する請求項1に記載の統合イメージセンサ。
- 受け付けた光エネルギーに反応して画素信号を生成し、受け付けた光のエネルギーによって前記画素信号の電圧値が決められる画素アレイと、
構造化照明光源と、
非構造化照明光源と、
前記画素アレイに接続されて前記画素アレイが生成した前記画素信号をアクセスする少なくとも1つの出力回路と、
第2ダイナミックレンジ、および、前記第2ダイナミックレンジよりも低減された第1ダイナミックレンジを有する少なくとも1つのアナログ/デジタル変換器と、
前記画素アレイ、前記少なくとも1つの出力回路、前記少なくとも1つのアナログ/デジタル変換器、またはそれらの組み合わせに接続される少なくとも1つのタイミング制御回路と、を備え、
前記少なくとも1つのタイミング制御回路は、
前記画素アレイにより、第1フレーム期間において、第1リセット信号を前記画素アレイに印加することにより前記画素アレイの画素列をリセットして、前記画素アレイの前記画素列を前記構造化照明光源からの第1の光に露出して前記画素列からの第1アナログ信号を形成し、前記少なくとも1つのアナログ/デジタル変換器を用いて前記画素アレイの前記画素列からの前記第1アナログ信号を構造化照明画像の第1デジタル出力信号に変換することにより、コモン画像平面に形成される前記構造化照明画像をキャプチャし、
前記画素アレイにより、前記第1フレーム期間よりも長い第2フレーム期間において、第2リセット信号を前記画素アレイに印加することにより前記画素アレイの前記画素列をリセットして、前記画素列を非構造化照明光源の第2の光に露出して前記画素列からの第2アナログ信号を形成し、前記少なくとも1つのアナログ/デジタル変換器を用いて前記画素列からの前記第2アナログ信号をレギュラー画像の第2デジタル出力信号に変換することにより、前記コモン画像平面と同じ画像平面に形成される前記レギュラー画像をキャプチャする、ように構成され、
前記構造化照明画像は、前記レギュラー画像よりも前または後にキャプチャされ、前記レギュラー画像に関する深度または形状の情報の導出に用いられ、
前記構造化照明画像は、前記第1ダイナミックレンジおよび前記レギュラー画像よりも低い空間解像度でキャプチャされる、
内視鏡。 - 飲み込みに適し、前記画素アレイ、前記構造化照明光源、前記非構造化照明光源、前記少なくとも1つの出力回路、および前記少なくとも1つのタイミング制御回路が内部に封入されて密封されるハウジング、をさらに備える請求項4に記載の内視鏡。
- 前記少なくとも1つのアナログ/デジタル変換器は、前記第1および第2ダイナミックレンジ両方を提供できる調整可能なアナログ/デジタル変換器である請求項4に記載の内視鏡。
- 前記少なくとも1つのアナログ/デジタル変換器は、前記第1および第2ダイナミックレンジをそれぞれ提供する2つのアナログ/デジタル変換器を有する請求項4に記載の内視鏡。
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US14/884,788 US9936151B2 (en) | 2015-10-16 | 2015-10-16 | Single image sensor for capturing mixed structured-light images and regular images |
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US9741754B2 (en) | 2013-03-06 | 2017-08-22 | Apple Inc. | Charge transfer circuit with storage nodes in image sensors |
US10531074B2 (en) * | 2015-10-16 | 2020-01-07 | CapsoVision, Inc. | Endoscope employing structured light providing physiological feature size measurement |
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