JP2010161572A5 - - Google Patents

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JP2010161572A5
JP2010161572A5 JP2009001827A JP2009001827A JP2010161572A5 JP 2010161572 A5 JP2010161572 A5 JP 2010161572A5 JP 2009001827 A JP2009001827 A JP 2009001827A JP 2009001827 A JP2009001827 A JP 2009001827A JP 2010161572 A5 JP2010161572 A5 JP 2010161572A5
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synchronization signal
image
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synchronization
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上述した課題を解決し、目的を達成するために、本発明に係わる撮像装置は、被写体像を結像させる光学系により結像された被写体像を画像信号に変換する撮像素子と、第１の同期信号と該第１の同期信号とは非同期の第２の同期信号を外部からの指示に応じて選択し、該選択された同期信号に基づいて前記撮像素子に蓄積動作を行わせる駆動手段と、前記撮像素子の出力信号を前記第１の同期信号または前記第２の同期信号に応じて処理する信号処理手段と、前記外部からの指示に応じて前記第１の同期信号から前記第２の同期信号に切り替わるとき、前記第１の同期信号と前記第２の同期信号の位相ずれに応じて前記信号処理手段の動作を切り替える制御手段と、を備えることを特徴とする。 To solve the above problems and achieve the object, an imaging apparatus according to the present invention includes an imaging device for converting an object image formed by the optical system for forming an object image into an image signal, a first a synchronization signal and the first synchronization signal is selected according to the instruction from the outside the second synchronizing signal asynchronous, the selected drive means to I line the accumulation operation in the imaging device based on the synchronizing signal And a signal processing means for processing an output signal of the image sensor in accordance with the first synchronization signal or the second synchronization signal, and from the first synchronization signal to the second in response to an instruction from the outside . Rutoki switched to the synchronization signal, characterized in that it comprises a control means for switching the operation of said signal processing means according to the phase shift of the first synchronization signal and the second synchronization signal.

また、本発明に係わる撮像装置の制御方法は、被写体像を結像させる光学系により結像された被写体像を画像信号に変換する撮像素子を有する撮像装置を制御する方法であって、第１の同期信号と該第１の同期信号とは非同期の第２の同期信号を外部からの指示に応じて選択し、該選択された同期信号に基づいて前記撮像素子に蓄積動作を行わせる駆動工程と、前記撮像素子の出力信号を前記第１の同期信号または前記第２の同期信号に応じて処理する信号処理工程と、前記外部からの指示に応じて前記第１の同期信号から前記第２の同期信号に切り替わるとき、前記第１の同期信号と前記第２の同期信号の位相ずれに応じて前記信号処理工程の動作を切り替える制御工程と、を備えることを特徴とする。 An image pickup apparatus control method according to the present invention is a method for controlling an image pickup apparatus having an image pickup element for converting a subject image formed by an optical system for forming a subject image into an image signal . drive of the synchronization signal and the first synchronizing signal selected in response to an instruction from the outside of the second synchronizing signal asynchronous to I row accumulation operation on the imaging element based on the selected synchronization signal A step of processing, a signal processing step of processing an output signal of the image sensor in accordance with the first synchronization signal or the second synchronization signal, and the first synchronization signal from the first synchronization signal in response to an instruction from the outside Rutoki switches to the second synchronizing signal, characterized in that it comprises a control step of switching the operation of the signal processing step in response to the phase shift of the first synchronization signal and the second synchronization signal.

Claims (8)

被写体像を結像させる光学系により結像された被写体像を画像信号に変換する撮像素子と、
第１の同期信号と該第１の同期信号とは非同期の第２の同期信号を外部からの指示に応じて選択し、該選択された同期信号に基づいて前記撮像素子に蓄積動作を行わせる駆動手段と、
前記撮像素子の出力信号を前記第１の同期信号または前記第２の同期信号に応じて処理する信号処理手段と、
前記外部からの指示に応じて前記第１の同期信号から前記第２の同期信号に切り替わるとき、前記第１の同期信号と前記第２の同期信号の位相ずれに応じて前記信号処理手段の動作を切り替える制御手段と、
を備えることを特徴とする撮像装置。 An image sensor that converts a subject image formed by an optical system that forms a subject image into an image signal;
First synchronization signal and the first synchronizing signal selected in response to an instruction from the outside of the second synchronizing signal asynchronous line Align the accumulation operation in the imaging device based on the selected synchronization signal and a driving means that,
Signal processing means for processing an output signal of the image sensor in accordance with the first synchronization signal or the second synchronization signal ;
Rutoki switches to the second synchronizing signal from said first synchronizing signal in response to an instruction from the external, the signal processing means according to the phase shift of the first synchronization signal and the second synchronization signal Control means for switching the operation of
An imaging apparatus comprising: 前記信号処理手段は、点滅光源に起因する前記画像信号の信号レベルの変動成分を検出するフリッカ検出手段と、該フリッカ検出手段による検出結果に基づいて、前記信号レベルの変動成分を補正する補正値を生成するフリッカ補正値推定手段と、該フリッカ補正値推定手段により生成された補正値により、前記信号レベルの変動成分を補正するフリッカ補正手段とを有し、前記制御手段は、前記第１の同期信号と前記第２の同期信号の切り替わりに応じて、前記補正値の生成方法を変更するように前記信号処理手段を制御することを特徴とする請求項１に記載の撮像装置。   The signal processing means includes a flicker detection means for detecting a signal level fluctuation component of the image signal caused by the blinking light source, and a correction value for correcting the signal level fluctuation component based on a detection result by the flicker detection means. And a flicker correction means for correcting the fluctuation component of the signal level using the correction value generated by the flicker correction value estimation means, and the control means includes the first control means. The imaging apparatus according to claim 1, wherein the signal processing unit is controlled to change a generation method of the correction value according to switching between a synchronization signal and the second synchronization signal. 前記補正値の生成方法の変更とは、前記第１の同期信号と前記第２の同期信号の位相ずれに応じて前記補正値を変更することであることを特徴とする請求項２に記載の撮像装置。 The change of the correction value generation method is to change the correction value according to a phase shift between the first synchronization signal and the second synchronization signal. Imaging device. 前記信号処理手段は、前記画像信号から特定の被写体情報を検出する被写体検出手段と、前記特定の被写体情報を検出する領域を設定する検出領域設定手段と、前記被写体検出手段により検出された特定の被写体情報を所定期間保持する保持手段と、前記光学系の焦点調節のための評価値を生成する評価値生成手段と、前記評価値に基づいて前記焦点調節の制御を行う焦点調節制御手段とを有し、前記制御手段は、前記第１の同期信号と前記第２の同期信号の切り替わりに応じて、前記特定の被写体情報を検出する領域を変更するように前記信号処理手段を制御することを特徴とする請求項１に記載の撮像装置。   The signal processing means includes a subject detection means for detecting specific subject information from the image signal, a detection area setting means for setting an area for detecting the specific subject information, and a specific detection detected by the subject detection means. Holding means for holding subject information for a predetermined period; evaluation value generating means for generating an evaluation value for focus adjustment of the optical system; and focus adjustment control means for controlling the focus adjustment based on the evaluation value. And the control means controls the signal processing means so as to change a region for detecting the specific subject information in accordance with switching between the first synchronization signal and the second synchronization signal. The imaging apparatus according to claim 1, wherein the imaging apparatus is characterized. 前記特定の被写体情報を検出する領域の変更とは、前記第１の同期信号と前記第２の同期信号の位相ずれに応じて、前記検出する領域のサイズを変更することであることを特徴とする請求項４に記載の撮像装置。 The change of the area for detecting the specific subject information is to change the size of the area to be detected according to a phase shift between the first synchronization signal and the second synchronization signal. The imaging device according to claim 4. 前記特定の被写体情報を検出する領域の変更とは、前記第１の同期信号と前記第２の同期信号の位相ずれに応じて、前記検出する領域の位置を変更することであることを特徴とする請求項４に記載の撮像装置。 The change of the area for detecting the specific subject information is to change the position of the area to be detected according to a phase shift between the first synchronization signal and the second synchronization signal. The imaging device according to claim 4. 被写体像を結像させる光学系により結像された被写体像を画像信号に変換する撮像素子を有する撮像装置を制御する方法であって、
第１の同期信号と該第１の同期信号とは非同期の第２の同期信号を外部からの指示に応じて選択し、該選択された同期信号に基づいて前記撮像素子に蓄積動作を行わせる駆動工程と、
前記撮像素子の出力信号を前記第１の同期信号または前記第２の同期信号に応じて処理する信号処理工程と、
前記外部からの指示に応じて前記第１の同期信号から前記第２の同期信号に切り替わるとき、前記第１の同期信号と前記第２の同期信号の位相ずれに応じて前記信号処理工程の動作を切り替える制御工程と、
を備えることを特徴とする撮像装置の制御方法。 A method for controlling an image pickup apparatus having an image pickup element for converting a subject image formed by an optical system for forming a subject image into an image signal,
First synchronization signal and the first synchronizing signal selected in response to an instruction from the outside of the second synchronizing signal asynchronous line Align the accumulation operation in the imaging device based on the selected synchronization signal and a driving step that,
A signal processing step of processing an output signal of the image sensor in accordance with the first synchronization signal or the second synchronization signal ;
Rutoki switches to the second synchronizing signal from said first synchronizing signal in response to an instruction from the external, the signal processing step in response to the phase shift of the first synchronization signal and the second synchronization signal A control process for switching the operation of
An image pickup apparatus control method comprising: 請求項７に記載の制御方法をコンピュータに実行させるためのプログラム。   A program for causing a computer to execute the control method according to claim 7.
JP2009001827A 2009-01-07 2009-01-07 Imaging apparatus, control method thereof, and program Expired - Fee Related JP5215879B2 (en)

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JP5581968B2 (en) * 2010-10-25 2014-09-03 株式会社ニコン Imaging device
JP7336186B2 (en) * 2018-11-27 2023-08-31 キヤノン株式会社 IMAGING DEVICE AND CONTROL METHOD THEREOF, PROGRAM, STORAGE MEDIUM
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