JP2008187480A - Imaging device and imaging method - Google Patents

Imaging device and imaging method Download PDF

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JP2008187480A
JP2008187480A JP2007019669A JP2007019669A JP2008187480A JP 2008187480 A JP2008187480 A JP 2008187480A JP 2007019669 A JP2007019669 A JP 2007019669A JP 2007019669 A JP2007019669 A JP 2007019669A JP 2008187480 A JP2008187480 A JP 2008187480A
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light
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receiving element
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JP4922776B2 (en
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Meiji Ito
明治 伊藤
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Fujifilm Corp
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<P>PROBLEM TO BE SOLVED: To provide an imaging device capable of outputting at a high speed the image data of a region, where a meaningful pixel signals are obtained. <P>SOLUTION: The imaging device comprises a plurality of first light-receiving elements which receive the light from a subject; a plurality of second light receiving elements which receive the light from a position identical with the position of a subject whose light is received by the plurality of first light-receiving elements, otherwise the light from the position adjoining the position of the subject whose light is received by the plurality of first light-receiving elements; and a received light quantity detecting part for detecting the quantity of received light that has been received by the plurality of second light-receiving elements. The device further comprises a pixel data acquiring part which acquires the received light quantity, as an electric signal, that is received by the first light-receiving element which receives light from the position identical with the position of the subject whose light is received by the second light-receiving element, of which the received light quantity detected by the received light quantity detecting part is equal to or more than the predetermined received light quantity, or the light from the position adjoining the position of the subject whose light is received by the second light-receiving element, of which the received light quantity detected by the received light quantity detecting part is equal to or more than the predetermined received light quantity. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、撮像装置及び撮像方法に関する。特に本発明は、画像を撮像する撮像装置、撮像方法に関する。   The present invention relates to an imaging apparatus and an imaging method. In particular, the present invention relates to an imaging apparatus and an imaging method for imaging an image.

蓄積型光電変換器の蓄積時間制御方法として、受光素子群に複数のモニタ受光素子を隣接して配設し、受光素子群の蓄積中に各モニタ受光素子のいずれかの受光光量が所定のレベルに到達した時点で、受光素子群の蓄積を終了させる制御方法が知られている(例えば、特許文献1参照。)。
特許第2514314号公報
As a storage time control method for the storage photoelectric converter, a plurality of monitor light receiving elements are arranged adjacent to the light receiving element group, and the received light amount of each monitor light receiving element is at a predetermined level during the light receiving element group storage. A control method is known in which the accumulation of the light receiving element group is terminated when reaching (for example, see Patent Document 1).
Japanese Patent No. 2514314

上記特許文献1に記載の蓄積時間制御方法では、モニタ受光素子の受光光量が所定のレベルに到達した時点で受光素子群への電荷蓄積を終了することによって、安定した受光量を得ることができる。しかしながら、撮像する画素数が多くなればなるほど、画素データを読み出すのにより多くの時間を要してしまい、出力される画像のデータ量も増大してしまう。   In the accumulation time control method described in Patent Document 1, a stable amount of received light can be obtained by ending charge accumulation in the light receiving element group when the amount of light received by the monitor light receiving element reaches a predetermined level. . However, as the number of pixels to be imaged increases, it takes more time to read out the pixel data, and the data amount of the output image increases.

そこで本発明は、上記課題を解決することができる撮像装置及び撮像方法を提供することを目的とする。この目的は特許請求の範囲における独立項に記載の特徴の組み合わせにより達成される。また従属項は本発明の更なる有利な具体例を規定する。   Therefore, an object of the present invention is to provide an imaging apparatus and an imaging method that can solve the above-described problems. This object is achieved by a combination of features described in the independent claims. The dependent claims define further advantageous specific examples of the present invention.

上記課題を解決するために、本発明の第1の形態における撮像装置は、被写体からの光をそれぞれ受光する複数の第1受光素子と、複数の第1受光素子のそれぞれが光を受光する被写体の位置と同一の位置、又は複数の第1受光素子のそれぞれが光を受光する被写体の位置に隣接する位置からの光をそれぞれ受光する複数の第2受光素子と、複数の第2受光素子のそれぞれが受光した受光量を検出する受光量検出部と、受光量検出部が検出した受光量が予め定められた受光量以上である第2受光素子が光を受光する被写体の位置と同一の位置、又は受光量検出部が検出した受光量が予め定められた受光量以上である第2受光素子が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子が受光した受光量を電気信号で取得する画素データ取得部とを備える。   In order to solve the above problems, an imaging apparatus according to a first aspect of the present invention includes a plurality of first light receiving elements that respectively receive light from a subject, and a subject that each of the plurality of first light receiving elements receives light. A plurality of second light receiving elements that respectively receive light from a position adjacent to the position of the subject that receives the light, or a plurality of second light receiving elements. The received light amount detecting unit for detecting the received light amount and the received light amount detected by the received light amount detecting unit equal to or greater than the position of the subject receiving the light by the second light receiving element in which the received light amount is equal to or greater than the predetermined received light amount. Alternatively, the first light receiving element that receives light from a position adjacent to the position of the subject that receives the light is received by the second light receiving element in which the received light amount detected by the received light amount detection unit is equal to or greater than a predetermined received light amount. Obtaining the amount of received light as an electrical signal And a pixel data acquiring unit that.

複数の第2受光素子のそれぞれは、複数の第1受光素子のそれぞれに隣接して配置され、画素データ取得部は、受光量検出部が検出した受光量が予め定められた受光量以上である第2受光素子に隣接して配置された第1受光素子が受光した受光量を電気信号で取得してよい。   Each of the plurality of second light receiving elements is disposed adjacent to each of the plurality of first light receiving elements, and the pixel data acquisition unit has a light reception amount detected by the light reception amount detection unit equal to or greater than a predetermined light reception amount. The amount of light received by the first light receiving element disposed adjacent to the second light receiving element may be acquired as an electrical signal.

第2受光素子の受光感度は、第1受光素子より受光感度が小さくてよい。被写体からの特定の色成分の光を透過して第2受光素子に受光させる色フィルタをさらに備えてよい。   The light receiving sensitivity of the second light receiving element may be lower than that of the first light receiving element. You may further provide the color filter which permeate | transmits the light of the specific color component from a to-be-photographed object, and makes a 2nd light receiving element light-receive.

本発明の第2の形態における撮像方法は、被写体からの光をそれぞれ受光する複数の第1受光素子のそれぞれが光を受光する被写体の位置と同一の位置、又は複数の第1受光素子のそれぞれが光を受光する被写体の位置に隣接する位置からの光をそれぞれ受光する複数の第2受光素子のそれぞれが受光した受光量を検出する受光量検出段階と、受光量検出段階において検出された受光量が予め定められた受光量以上である第2受光素子が光を受光する被写体の位置と同一の位置、又は受光量検出部が検出した受光量が予め定められた受光量以上である第2受光素子が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子が受光した受光量を電気信号で取得する画素データ取得段階とを備える。   In the imaging method according to the second aspect of the present invention, each of the plurality of first light receiving elements that respectively receive light from the subject is the same position as the position of the subject that receives the light, or each of the plurality of first light receiving elements. Receives the light received by each of the plurality of second light receiving elements that respectively receive light from positions adjacent to the position of the subject that receives the light, and the received light detected in the received light amount detection stage. The second light receiving element whose amount is greater than or equal to a predetermined amount of received light is the same position as the subject that receives light, or the amount of received light detected by the received light amount detection unit is greater than or equal to a predetermined amount of received light. A pixel data acquisition step of acquiring, by an electrical signal, the amount of light received by the first light receiving element that receives light from a position adjacent to the position of the subject on which the light receiving element receives light.

本発明の第3の形態における撮像装置は、被写体からの光をそれぞれ受光する複数の第1受光素子と、複数の第1受光素子のそれぞれが光を受光する被写体の位置と同一の位置、又は複数の第1受光素子のそれぞれが光を受光する被写体の位置に隣接する位置からの光をそれぞれ受光する複数の第2受光素子と、複数の第2受光素子のそれぞれが受光した受光量を検出する受光量検出部と、受光量検出部が検出した受光量が予め定められた受光量以下である第2受光素子が光を受光する被写体の位置と同一の位置、又は受光量検出部が検出した受光量が予め定められた受光量以下である第2受光素子が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子が受光した受光量を電気信号で取得する画素データ取得部とを備える。   The imaging apparatus according to the third aspect of the present invention includes a plurality of first light receiving elements that respectively receive light from a subject and a position that is the same as the position of the subject that each of the plurality of first light receiving elements receives light, or Each of the plurality of first light receiving elements detects the amount of light received by each of the plurality of second light receiving elements that respectively receive light from positions adjacent to the position of the subject that receives the light, and each of the plurality of second light receiving elements. The received light amount detection unit and the received light amount detected by the received light amount detection unit are equal to or less than a predetermined light reception amount, or detected by the received light amount detection unit. The received light amount received by the first light receiving element that receives light from a position adjacent to the position of the subject where the second light receiving element that receives the light is equal to or less than the predetermined received light amount is acquired as an electrical signal. With pixel data acquisition unit That.

本発明の第4の形態における撮像方法は、被写体からの光をそれぞれ受光する複数の第1受光素子のそれぞれが光を受光する被写体の位置と同一の位置、又は複数の第1受光素子のそれぞれが光を受光する被写体の位置に隣接する位置からの光をそれぞれ受光する複数の第2受光素子のそれぞれが受光した受光量を検出する受光量検出段階と、受光量検出段階において検出された受光量が予め定められた受光量以下である第2受光素子が光を受光する被写体の位置と同一の位置、又は受光量検出部が検出した受光量が予め定められた受光量以下である第2受光素子が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子が受光した受光量を電気信号で取得する画素データ取得段階とを備える。   In the imaging method according to the fourth aspect of the present invention, each of the plurality of first light receiving elements that respectively receive light from the subject is the same position as the position of the subject that receives the light, or each of the plurality of first light receiving elements. Receives the light received by each of the plurality of second light receiving elements that respectively receive light from positions adjacent to the position of the subject that receives the light, and the received light detected in the received light amount detection stage. The second light receiving element whose amount is less than or equal to a predetermined amount of received light is the same position as the subject receiving light, or the amount of received light detected by the received light amount detection unit is equal to or less than the predetermined amount of received light. A pixel data acquisition step of acquiring, by an electrical signal, the amount of light received by the first light receiving element that receives light from a position adjacent to the position of the subject on which the light receiving element receives light.

なお、上記の発明の概要は、本発明の必要な特徴の全てを列挙したものではなく、これらの特徴群のサブコンビネーションもまた、発明となりうる。   The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

本発明によれば、有意な画素信号が得られた領域の画像データを高速に出力することができる撮像装置を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the imaging device which can output the image data of the area | region where the significant pixel signal was obtained at high speed can be provided.

以下、発明の実施の形態を通じて本発明を説明するが、以下の実施形態は特許請求の範囲にかかる発明を限定するものではなく、また実施形態の中で説明されている特徴の組み合わせの全てが発明の解決手段に必須であるとは限らない。   Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the scope of claims, and all combinations of features described in the embodiments are included. It is not necessarily essential for the solution of the invention.

図1は、一実施形態に係る撮像装置100のブロック構成の一例を示す。撮像装置100は、複数の第1受光素子110a及びb(以下、第1受光素子110と総称する)、第2受光素子120a及びb(以下、第2受光素子120と総称する)、受光量検出部130a及びb(以下、受光量検出部130と総称する)、読み出し制御部140a及びb(以下、読み出し制御部140と総称する)、画素データ取得部170a及びb(以下、画素データ取得部170と総称する)を備える。読み出し制御部140aは、スイッチ制御部150a及びスイッチ部160aを有し、読み出し制御部140bは、スイッチ制御部150b及びスイッチ部160bを有する。なお、スイッチ制御部150a及びbをスイッチ制御部150と総称し、スイッチ部160a及びbをスイッチ部160と総称する。   FIG. 1 shows an example of a block configuration of an imaging apparatus 100 according to an embodiment. The imaging apparatus 100 includes a plurality of first light receiving elements 110a and 110b (hereinafter collectively referred to as first light receiving elements 110), second light receiving elements 120a and b (hereinafter collectively referred to as second light receiving elements 120), and detection of received light amount. Units 130a and b (hereinafter collectively referred to as received light amount detection unit 130), readout control units 140a and b (hereinafter collectively referred to as readout control unit 140), pixel data acquisition units 170a and b (hereinafter referred to as pixel data acquisition unit 170). Generically). The read control unit 140a includes a switch control unit 150a and a switch unit 160a, and the read control unit 140b includes a switch control unit 150b and a switch unit 160b. The switch control units 150a and 150b are collectively referred to as the switch control unit 150, and the switch units 160a and 160b are collectively referred to as the switch unit 160.

複数の第1受光素子110は、被写体からの光をそれぞれ受光する。複数の第2受光素子120は、複数の第1受光素子110のそれぞれが光を受光する被写体の位置と同一の位置、又は複数の第1受光素子110のそれぞれが光を受光する被写体の位置に隣接する位置からの光をそれぞれ受光する。そして、受光量検出部130は、複数の第2受光素子120のそれぞれが受光した受光量を検出する。   The plurality of first light receiving elements 110 respectively receive light from the subject. The plurality of second light receiving elements 120 are located at the same position as the subject where each of the plurality of first light receiving elements 110 receives light, or at the position of the subject where each of the plurality of first light receiving elements 110 receives light. Light from adjacent positions is received. The received light amount detection unit 130 detects the received light amount received by each of the plurality of second light receiving elements 120.

そして、画素データ取得部170は、受光量検出部130が検出した受光量が予め定められた受光量A以上である第2受光素子120が光を受光する被写体の位置と同一の位置、又は受光量検出部130が検出した受光量が予め定められた受光量A以上である第2受光素子120が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子110が受光した受光量を電気信号で取得する。なお、画素データ取得部170は、受光量検出部130が検出した受光量が予め定められた受光量A以上である第2受光素子120が光を受光する被写体の位置と同一の位置、又は受光量検出部130が検出した受光量が予め定められた受光量A以上である第2受光素子120が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子110の位置を示すアドレス情報と、当該第1受光素子110が受光した受光量とを対応づけて取得してよい。これにより、撮像装置100は、取得したアドレス情報と受光量とに基づいて、所定量以上の光量の光を発する被写体領域の画像を生成することができる。   Then, the pixel data acquisition unit 170 receives the light received by the second light receiving element 120 whose light reception amount detected by the light reception amount detection unit 130 is equal to or greater than a predetermined light reception amount A, or receives light. The first light receiving element 110 that receives light from a position adjacent to the position of the subject that receives the light is received by the second light receiving element 120 whose light receiving amount detected by the amount detection unit 130 is equal to or greater than the predetermined light receiving amount A. The received light amount is acquired with an electrical signal. Note that the pixel data acquisition unit 170 receives the light received by the second light receiving element 120 whose light reception amount detected by the light reception amount detection unit 130 is greater than or equal to a predetermined light reception amount A, or receives light. The position of the first light receiving element 110 that receives the light from the position adjacent to the position of the subject on which the second light receiving element 120 whose light receiving amount detected by the amount detection unit 130 is equal to or larger than the predetermined light receiving amount A is received. And the received light amount received by the first light receiving element 110 may be acquired in association with each other. As a result, the imaging apparatus 100 can generate an image of a subject area that emits light of a predetermined amount or more based on the acquired address information and the amount of received light.

具体的には、読み出し制御部140は、受光量検出部130が検出した受光量が予め定められた受光量A以上である第2受光素子120が光を受光する被写体の位置と同一の位置、又は受光量検出部130が検出した受光量が予め定められた受光量A以上である第2受光素子120が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子110が受光した受光量を、電気信号で画素データ取得部170に供給する。なお、読み出し制御部140は、受光量検出部130が検出した受光量が予め定められた受光量A以上である第2受光素子120が光を受光する被写体の位置と同一の位置、又は受光量検出部130が検出した受光量が予め定められた受光量A以上である第2受光素子120が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子110が受光した受光量を、第1受光素子110から読み出して画素データ取得部170に供給する。   Specifically, the read control unit 140 has the same position as the position of the subject on which the second light receiving element 120 whose light reception amount detected by the light reception amount detection unit 130 is equal to or greater than a predetermined light reception amount A, Alternatively, the first light receiving element 110 that receives light from a position adjacent to the position of the subject on which the second light receiving element 120 whose received light amount detected by the received light amount detection unit 130 is equal to or greater than a predetermined received light amount A is received. The amount of received light is supplied to the pixel data acquisition unit 170 as an electrical signal. Note that the reading control unit 140 receives the light received by the second light receiving element 120 whose received light amount detected by the received light amount detecting unit 130 is equal to or greater than a predetermined received light amount A, or the received light amount. The first light receiving element 110 that receives light from a position adjacent to the position of the subject on which the second light receiving element 120 whose light reception amount detected by the detection unit 130 is equal to or greater than a predetermined light reception amount A is received. The received light amount is read from the first light receiving element 110 and supplied to the pixel data acquisition unit 170.

より具体的には、複数のスイッチ部160は、複数の第1受光素子110にそれぞれ接続され、複数の第1受光素子110が受光した受光量を電気信号で画素データ取得部170に出力する。また、スイッチ制御部150は、受光量検出部130が検出した受光量が予め定められた受光量A以上である第2受光素子120が光を受光する位置と同一の位置、又は受光量検出部130が検出した受光量が予め定められた受光量A以上である第2受光素子120が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子110に接続されたスイッチ部160を導通状態にすることによって、当該第1受光素子110が受光した受光量を電気信号で画素データ取得部170に供給する。   More specifically, the plurality of switch units 160 are connected to the plurality of first light receiving elements 110, respectively, and output the amount of light received by the plurality of first light receiving elements 110 to the pixel data acquisition unit 170 as an electrical signal. In addition, the switch control unit 150 has the same position as the position where the second light receiving element 120 that receives the light received by the received light amount detection unit 130 is equal to or greater than the predetermined received light amount A, or the received light amount detection unit. A switch connected to the first light receiving element 110 that receives light from a position adjacent to the position of the subject on which the second light receiving element 120 whose light reception amount detected by the light receiver is equal to or greater than a predetermined light reception amount A is received. By making the unit 160 conductive, the amount of light received by the first light receiving element 110 is supplied to the pixel data acquisition unit 170 as an electrical signal.

なお、受光量検出部130は、複数の第2受光素子120のそれぞれが受光した受光量を電圧値に変換して検出する容量素子であってよい。例えば、受光量検出部130は、第2受光素子120が露光される前に予め定められた量の電荷を蓄積しておく。そして、受光量検出部130は、第2受光素子120の露光量が増加するにつれて、蓄積しておいた電荷が消滅していくことにより低い電圧値を出力する。そして、スイッチ制御部150は、受光量検出部130が検出した電圧値が、受光量Aを示す電圧値V1未満である第2受光素子120が光を受光する位置と同一の位置、又は受光量検出部130が検出した電圧値が電圧値V1未満である第2受光素子120が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子110に接続されたスイッチ部160を導通状態にするコンパレータであってよい。   The received light amount detector 130 may be a capacitive element that detects the amount of received light received by each of the plurality of second light receiving elements 120 by converting the received light amount into a voltage value. For example, the received light amount detection unit 130 accumulates a predetermined amount of charge before the second light receiving element 120 is exposed. The received light amount detector 130 outputs a low voltage value as the accumulated charge disappears as the exposure amount of the second light receiving element 120 increases. Then, the switch control unit 150 has the same position as the position where the second light receiving element 120 receiving the light whose voltage value detected by the received light amount detecting unit 130 is less than the voltage value V1 indicating the received light amount A, or the received light amount. The switch unit 160 connected to the first light receiving element 110 that receives light from a position adjacent to the position of the subject on which the second light receiving element 120 whose voltage value detected by the detection unit 130 is less than the voltage value V1 receives light. It may be a comparator that puts in a conductive state.

フィルタ部180は、被写体からの特定の色成分の光を透過して第2受光素子120に受光させる色フィルタであってよい。例えば、フィルタ部180は、人間に特徴的な色を示す色成分の光を透過して第2受光素子120に受光させる色フィルタであってよい。また、フィルタ部180は、赤色の色成分を示す周波数以下の周波数成分を含む光を透過して第2受光素子120に受光させる色フィルタであってよい。フィルタ部180は、特に赤外線領域より周波数の小さい光を透過して第2受光素子120に受光させる色フィルタであってよい。このようにすれば、画素データ取得部170は、第2受光素子120によって人物等が含まれる領域の被写体からの光を受光する画素データを優先的に読み出すことができる。このため、撮像装置100によると、撮像する画素数が増大しても人物等の所望の被検体の存在を迅速に検出して、その被検体の画像を迅速に提供することができる。また、フィルタ部180は、特定の偏光方向の光を透過して第2受光素子120に受光させる偏光フィルタであってもよい。   The filter unit 180 may be a color filter that transmits light of a specific color component from the subject and causes the second light receiving element 120 to receive the light. For example, the filter unit 180 may be a color filter that transmits light of a color component indicating a color characteristic of a human and causes the second light receiving element 120 to receive the light. The filter unit 180 may be a color filter that transmits light including a frequency component equal to or lower than the frequency indicating the red color component and causes the second light receiving element 120 to receive the light. The filter unit 180 may be a color filter that transmits light having a frequency lower than that of the infrared region and causes the second light receiving element 120 to receive the light. In this way, the pixel data acquisition unit 170 can preferentially read out pixel data that receives light from a subject in a region including a person or the like by the second light receiving element 120. For this reason, according to the imaging apparatus 100, even if the number of pixels to be captured increases, the presence of a desired subject such as a person can be quickly detected, and an image of the subject can be quickly provided. The filter unit 180 may be a polarization filter that transmits light in a specific polarization direction and causes the second light receiving element 120 to receive the light.

なお、複数の第2受光素子120のそれぞれは、複数の第1受光素子110のそれぞれに隣接して配置されている。そして、画素データ取得部170は、受光量検出部130が検出した受光量が予め定められた受光量A以上である第2受光素子120に隣接して配置された第1受光素子110が受光した受光量を電気信号で取得する。   In addition, each of the plurality of second light receiving elements 120 is disposed adjacent to each of the plurality of first light receiving elements 110. The pixel data acquisition unit 170 receives the first light receiving element 110 disposed adjacent to the second light receiving element 120 whose light reception amount detected by the light reception amount detection unit 130 is equal to or greater than a predetermined light reception amount A. The amount of received light is acquired with an electrical signal.

第2受光素子120の受光感度は、第1受光素子110より受光感度が小さくてよい。例えば、第2受光素子120の受光面積は、第1受光素子110より受光面積が小さくてよい。   The light receiving sensitivity of the second light receiving element 120 may be lower than that of the first light receiving element 110. For example, the light receiving area of the second light receiving element 120 may be smaller than that of the first light receiving element 110.

また、画素データ取得部170は、受光量検出部130が検出した受光量が予め定められた第1受光量以上であり、第1受光量より大きい予め定められた第2受光量以下である第2受光素子120が光を受光する被写体の位置と同一の位置、又は受光量検出部130が検出した受光量が第1受光量以上であり第2受光量以下である第2受光素子120が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子110が受光した受光量を電気信号で取得する。   Further, the pixel data acquisition unit 170 has a light reception amount detected by the light reception amount detection unit 130 that is equal to or greater than a predetermined first light reception amount and is equal to or smaller than a predetermined second light reception amount that is greater than the first light reception amount. The second light receiving element 120 whose light receiving amount detected by the light receiving amount detection unit 130 is equal to or larger than the first light receiving amount and smaller than or equal to the second light receiving amount is light. The amount of light received by the first light receiving element 110 that receives light from a position adjacent to the position of the subject that receives the light is acquired as an electrical signal.

なお、読み出し制御部140は、XYアドレス方式によって第1受光素子110から画素信号を読み出してよい。これにより、撮像装置100は、特定の色成分の光を所定量以上受光した画素だけを読み出すことができるので高速な読み出しが可能になる。例えば、第1受光素子110はCMOS型素子であってよい。   Note that the read control unit 140 may read the pixel signal from the first light receiving element 110 by the XY address method. As a result, the imaging apparatus 100 can read out only pixels that have received a predetermined amount or more of light of a specific color component, so that high-speed reading is possible. For example, the first light receiving element 110 may be a CMOS type element.

その他にも、第1受光素子110は、CCD型素子であってよい。この場合、画素データ取得部170は、受光量検出部130が検出した受光量が予め定められた受光量A以上である第2受光素子120に隣接して配置された第1受光素子110が受光した受光量を示す画素データを記録し、受光量検出部130が検出した受光量が予め定められた受光量A未満である第2受光素子120に隣接して配置された第1受光素子110が受光した受光量を示す画素データを記録しない。これにより、撮像装置100は、特定の色成分の光が所定量以上ある画像領域の画像だけを画像データとして記録することができるので、画像を記録するデータ量を削減することができる。   In addition, the first light receiving element 110 may be a CCD type element. In this case, in the pixel data acquisition unit 170, the first light receiving element 110 disposed adjacent to the second light receiving element 120 whose light reception amount detected by the light reception amount detection unit 130 is equal to or greater than a predetermined light reception amount A is received. The pixel data indicating the received light amount is recorded, and the first light receiving element 110 disposed adjacent to the second light receiving element 120 whose received light amount detected by the received light amount detection unit 130 is less than the predetermined received light amount A is provided. Pixel data indicating the amount of received light is not recorded. Thereby, the imaging apparatus 100 can record only the image of the image area where the light of the specific color component is a predetermined amount or more as the image data, so that the data amount for recording the image can be reduced.

なお、画素データ取得部170は、受光量検出部130が検出した受光量が予め定められた受光量B以下である第2受光素子120が光を受光する被写体の位置と同一の位置、又は受光量検出部130が検出した受光量が予め定められた受光量B以下である第2受光素子120が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子110が受光した受光量を電気信号で取得してもよい。予め定められた受光量Bとは、受光量Aより大きく、第1受光素子110の受光量が飽和してしまう受光量を示す第2受光素子120の受光量であってよい。このように制御すると、撮像装置100は、受光量が飽和した画素を読み出したり、受光量が飽和した画素の画素データを記録したりしてしまうことを未然に防ぐことができる。このため、撮像装置100によると、必要な領域の画素データを高速に読み出したり、必要な領域の画素データだけを記録することができる。   The pixel data acquisition unit 170 receives the light received by the second light receiving element 120 whose light reception amount detected by the light reception amount detection unit 130 is equal to or less than a predetermined light reception amount B, or receives light. The first light receiving element 110 that receives light from the position adjacent to the position of the subject that receives the light is received by the second light receiving element 120 whose light receiving amount detected by the amount detection unit 130 is equal to or smaller than the predetermined light receiving amount B. The received light amount may be acquired by an electrical signal. The predetermined amount of received light B may be the amount of received light of the second light receiving element 120 that is larger than the amount of received light A and indicates the amount of received light that saturates the amount of received light of the first light receiving element 110. By controlling in this way, the imaging apparatus 100 can prevent a pixel with a saturated light reception amount from being read or pixel data of a pixel with a saturated light reception amount from being recorded. For this reason, according to the imaging apparatus 100, pixel data in a necessary area can be read at high speed, or only pixel data in a necessary area can be recorded.

なお、画素データ取得部170は、受光量検出部130が検出した受光量が予め定められた受光量B以下である第2受光素子120が光を受光する被写体の位置と同一の位置、又は受光量検出部130が検出した受光量が予め定められた受光量B以下である第2受光素子120が光を受光する被写体の位置に隣接する位置からの光を受光する第1受光素子110の位置を示すアドレス情報と、当該第1受光素子110が受光した受光量とを対応づけて取得してよい。これにより、撮像装置100は、取得したアドレス情報と受光量とに基づいて、画素値が飽和しない光量の光を発する被写体領域の画像を生成することができる。   The pixel data acquisition unit 170 receives the light received by the second light receiving element 120 whose light reception amount detected by the light reception amount detection unit 130 is equal to or less than a predetermined light reception amount B, or receives light. The position of the first light receiving element 110 that receives the light from the position adjacent to the position of the subject on which the second light receiving element 120 whose light receiving amount detected by the amount detection unit 130 is equal to or less than the predetermined light receiving amount B is received. And the received light amount received by the first light receiving element 110 may be acquired in association with each other. Accordingly, the imaging apparatus 100 can generate an image of a subject area that emits light having a light amount that does not saturate the pixel value, based on the acquired address information and the amount of received light.

図2は、第1受光素子110及び第2受光素子120の配列の一例を示す。受光素子210a〜f(以下、受光素子210と総称する)は第1受光素子110の一例であり、受光素子220a〜f(以下、受光素子220と総称する)は第2受光素子120の一例である。受光素子220の単位面積あたりの受光感度は、受光素子210の単位面積あたりの受光感度と略同一であってよく、受光素子220の受光面積は受光素子210の受光面積より小さい。   FIG. 2 shows an example of the arrangement of the first light receiving element 110 and the second light receiving element 120. The light receiving elements 210a to 210f (hereinafter collectively referred to as the light receiving element 210) are examples of the first light receiving element 110, and the light receiving elements 220a to 220f (hereinafter collectively referred to as the light receiving element 220) are examples of the second light receiving element 120. is there. The light receiving sensitivity per unit area of the light receiving element 220 may be substantially the same as the light receiving sensitivity per unit area of the light receiving element 210, and the light receiving area of the light receiving element 220 is smaller than the light receiving area of the light receiving element 210.

受光素子210aは、受光素子220aと同一の位置、又は受光素子220aが光を受光する被写体の位置に隣接する位置からの光を受光すべく受光素子210a及び受光素子220aは隣接して配置されており、受光素子210a及び受光素子220aは1つの画素200aをなす。そして、読み出し制御部140は、受光素子220aの受光量が受光量A以上である場合に、受光素子210aが受光した受光量を電気信号で画素データ取得部170に供給する。   In the light receiving element 210a, the light receiving element 210a and the light receiving element 220a are disposed adjacent to each other so as to receive light from the same position as the light receiving element 220a or a position adjacent to the position of the subject on which the light receiving element 220a receives light. The light receiving element 210a and the light receiving element 220a form one pixel 200a. Then, when the amount of light received by the light receiving element 220a is equal to or greater than the amount of received light A, the read control unit 140 supplies the amount of received light received by the light receiving element 210a to the pixel data acquisition unit 170 as an electrical signal.

なお、他の受光素子210b〜f及び受光素子220b〜fも受光素子210aと受光素子220aとの間の位置関係と同様の位置関係で配置されていて画素200b〜fをなす。なお、読み出し制御部140の動作は、画素200に対する動作と略同一であるので説明を省略する。なお、画素200a〜fは、色フィルタ(図示せず)を通じて被写体の光を検出することによって、異なる複数の色の光を検出してよい。例えば、画素200a、d、及びeは緑色の光を通過するフィルタを通過した光を受光し、画素200b及び220fはそれぞれ青色及び赤色の光を通過するフィルタを通過した光を検出してよい。   The other light receiving elements 210b to 210f and the light receiving elements 220b to 220f are also arranged in the same positional relationship as the positional relationship between the light receiving elements 210a and 220a to form the pixels 200b to 200f. Note that the operation of the readout control unit 140 is substantially the same as the operation for the pixel 200, and thus description thereof is omitted. The pixels 200a to 200f may detect light of a plurality of different colors by detecting the light of the subject through a color filter (not shown). For example, the pixels 200a, d, and e may receive light that has passed through a filter that passes green light, and the pixels 200b and 220f may detect light that has passed through a filter that passes blue and red light, respectively.

図3は、第1受光素子110及び第2受光素子120の配列の他の一例を示す。受光素子310a〜f(以下、受光素子310と総称する)は第1受光素子110の一例であり、受光素子320a〜f(以下、受光素子320と総称する)は第2受光素子120の一例である。図2と同様に、受光素子320の単位面積あたりの受光感度は、受光素子310の単位面積あたりの受光感度と略同一であってよく、受光素子320の面積は受光素子310の面積より小さい。本図で示される受光素子310及び受光素子320の配列は、受光素子310と受光素子320とが独立しているという点を除き、図2に示す配列と略同一である。   FIG. 3 shows another example of the arrangement of the first light receiving elements 110 and the second light receiving elements 120. The light receiving elements 310 a to f (hereinafter collectively referred to as the light receiving element 310) are examples of the first light receiving element 110, and the light receiving elements 320 a to 320 f (hereinafter collectively referred to as the light receiving element 320) are examples of the second light receiving element 120. is there. As in FIG. 2, the light receiving sensitivity per unit area of the light receiving element 320 may be substantially the same as the light receiving sensitivity per unit area of the light receiving element 310, and the area of the light receiving element 320 is smaller than the area of the light receiving element 310. The arrangement of the light receiving elements 310 and 320 shown in this figure is substantially the same as the arrangement shown in FIG. 2 except that the light receiving elements 310 and 320 are independent.

なお、読み出し制御部140は、受光素子310cに隣接する受光素子320c、受光素子320d、受光素子320e、及び受光素子320fの受光量の平均値が受光量A以上である場合に、受光素子310aが受光した受光量を電気信号で画素データ取得部170に供給してよい。その他にも、読み出し制御部140は、受光素子310cに隣接する受光素子320c、受光素子320d、受光素子320e、及び受光素子320fのいずれかの受光量が受光量A以上である場合に、受光素子310aが受光した受光量を電気信号で画素データ取得部170に供給してもよい。   The read control unit 140 determines that the light receiving element 310a has a light receiving element 310a that is equal to or greater than the light receiving amount A when the light receiving element 320c, the light receiving element 320d, the light receiving element 320e, and the light receiving element 320f are adjacent to the light receiving element 310c. The amount of received light may be supplied to the pixel data acquisition unit 170 as an electrical signal. In addition, the reading control unit 140 receives the light receiving element 320c, the light receiving element 320d, the light receiving element 320e, and the light receiving element 320f adjacent to the light receiving element 310c when the received light amount is greater than or equal to the received light amount A. The amount of light received by 310a may be supplied to the pixel data acquisition unit 170 as an electrical signal.

図4は、第1受光素子110及び第2受光素子120の配列の更なる他の一例を示す。本図の配置例では、受光素子410a〜fは、単位面積あたりの受光感度が略同一であり、かつ略同一の受光面積を有する。本例においては、受光素子410a、b、d〜fが第1受光素子110の一例であり、受光素子320cが第2受光素子120の一例である。そして、読み出し制御部140は、例えば受光素子410cが受光した受光量が受光量A以上である場合に、受光素子410cに隣接する受光素子410a、b、d、及びeが受光した受光量を電気信号で画素データ取得部170に供給する。   FIG. 4 shows still another example of the arrangement of the first light receiving elements 110 and the second light receiving elements 120. In the arrangement example of this figure, the light receiving elements 410a to 410f have substantially the same light receiving sensitivity per unit area and substantially the same light receiving area. In this example, the light receiving elements 410 a, b, and d to f are examples of the first light receiving element 110, and the light receiving element 320 c is an example of the second light receiving element 120. Then, for example, when the light reception amount received by the light receiving element 410c is equal to or greater than the light reception amount A, the read control unit 140 electrically calculates the light reception amount received by the light receiving elements 410a, 410b, 410d, and e adjacent to the light receiving element 410c. The signal is supplied to the pixel data acquisition unit 170 as a signal.

以上、図2から図4にかけて、第2受光素子120が第1受光素子110に隣接して設けられた配列を例に挙げて受光素子の配列の一例を説明した。しかしながら、以上に説明したような、第2受光素子120が第1受光素子110の近傍に設けられた配列以外にも、多様な受光素子配列によってこの発明を実施することができる。例えば被写体からの光を分光して得られた各色の光を異なる基板に形成された受光素子アレイで受光する3板式カメラのように、撮像装置100は、第1受光素子110が設けられた基板と、第1受光素子110が設けられた基板と異なる場所に設けられた第2受光素子120が設けられた基板と、被写体からの光を分割するビームスプリッタとを備えてよい。そして第1受光素子110はビームスプリッタによって分割された一方の光を受光し、第2受光素子120はビームスプリッタによって分割された他方の光を受光する。   As described above, an example of the arrangement of the light receiving elements has been described with reference to FIGS. 2 to 4 taking the arrangement in which the second light receiving element 120 is provided adjacent to the first light receiving element 110 as an example. However, in addition to the arrangement in which the second light receiving element 120 is provided in the vicinity of the first light receiving element 110 as described above, the present invention can be implemented by various light receiving element arrangements. For example, the imaging apparatus 100 is a substrate on which a first light receiving element 110 is provided, such as a three-plate camera that receives light of each color obtained by separating light from a subject with a light receiving element array formed on a different substrate. And a substrate provided with the second light receiving element 120 provided at a different location from the substrate provided with the first light receiving element 110, and a beam splitter for dividing light from the subject. The first light receiving element 110 receives one light divided by the beam splitter, and the second light receiving element 120 receives the other light divided by the beam splitter.

なお、第1受光素子110の受光感度、第2受光素子120の受光感度、及びビームスプリッタによる光強度の分割比は、ビームスプリッタが第1受光素子110に供給する光の強度に対する第2受光素子120に供給する光の強度の比が、第2受光素子120の受光感度に対する第1受光素子110の受光感度の比より小さくなるよう定められてよい。具体的には、ビームスプリッタはハーフミラーであり、第2受光素子120の受光感度は第1受光素子110の受光感度より小さくてよい。また、第2受光素子120の受光感度は第1受光素子110の受光感度と略同一であり、ビームスプリッタは第2受光素子120に供給する光の強度より強い強度の光を第1受光素子110に供給してよい。なお、この場合でも、第2受光素子120の受光感度は第1受光素子110の受光感度より小さくてもよい。   Note that the light receiving sensitivity of the first light receiving element 110, the light receiving sensitivity of the second light receiving element 120, and the light intensity division ratio by the beam splitter are the second light receiving element with respect to the intensity of light supplied to the first light receiving element 110 by the beam splitter. The ratio of the intensity of light supplied to 120 may be set to be smaller than the ratio of the light receiving sensitivity of the first light receiving element 110 to the light receiving sensitivity of the second light receiving element 120. Specifically, the beam splitter is a half mirror, and the light receiving sensitivity of the second light receiving element 120 may be smaller than the light receiving sensitivity of the first light receiving element 110. The light receiving sensitivity of the second light receiving element 120 is substantially the same as the light receiving sensitivity of the first light receiving element 110, and the beam splitter emits light having a stronger intensity than that of the light supplied to the second light receiving element 120. May be supplied. Even in this case, the light receiving sensitivity of the second light receiving element 120 may be smaller than the light receiving sensitivity of the first light receiving element 110.

以上、本発明を実施の形態を用いて説明したが、本発明の技術的範囲は上記実施の形態に記載の範囲には限定されない。上記実施の形態に、多様な変更または改良を加え得ることが当業者に明らかである。その様な変更または改良を加えた形態も本発明の技術的範囲に含まれ得ることが、特許請求の範囲の記載から明らかである。   As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

撮像装置100のブロック構成の一例を示す図である。1 is a diagram illustrating an example of a block configuration of an imaging apparatus 100. FIG. 第1受光素子110及び第2受光素子120の配列の一例を示す図である。3 is a diagram illustrating an example of an arrangement of a first light receiving element 110 and a second light receiving element 120. FIG. 第1受光素子110及び第2受光素子120の配列の他の一例を示す図である。FIG. 6 is a diagram illustrating another example of the arrangement of the first light receiving element 110 and the second light receiving element 120. 第1受光素子110及び第2受光素子120の配列の更なる他の一例を示す図である。It is a figure which shows another example of the arrangement | sequence of the 1st light receiving element 110 and the 2nd light receiving element 120. FIG.

符号の説明Explanation of symbols

110 第1受光素子
120 第2受光素子
130 受光量検出部
140 読み出し制御部
150 スイッチ制御部
160 スイッチ部
170 画素データ取得部
180 フィルタ部
110 first light receiving element 120 second light receiving element 130 received light amount detection unit 140 read control unit 150 switch control unit 160 switch unit 170 pixel data acquisition unit 180 filter unit

Claims (11)

被写体からの光をそれぞれ受光する複数の第1受光素子と、
前記複数の第1受光素子のそれぞれが光を受光する前記被写体の位置と同一の位置、又は前記複数の第1受光素子のそれぞれが光を受光する前記被写体の位置に隣接する位置からの光をそれぞれ受光する複数の第2受光素子と、
前記複数の第2受光素子のそれぞれが受光した受光量を検出する受光量検出部と、
前記受光量検出部が検出した受光量が予め定められた受光量以上である前記第2受光素子が光を受光する前記被写体の位置と同一の位置、又は前記受光量検出部が検出した受光量が予め定められた受光量以上である前記第2受光素子が光を受光する前記被写体の位置に隣接する位置からの光を受光する前記第1受光素子が受光した受光量を電気信号で取得する画素データ取得部と
を備える撮像装置。
A plurality of first light receiving elements that respectively receive light from the subject;
Each of the plurality of first light receiving elements receives light from a position that is the same as the position of the subject that receives light, or a position that is adjacent to the position of the subject that each of the plurality of first light receiving elements receives light. A plurality of second light receiving elements each receiving light;
A received light amount detection unit for detecting a received light amount received by each of the plurality of second light receiving elements;
The received light amount detected by the received light amount detection unit is equal to or greater than a predetermined received light amount, the same position as the subject where the second light receiving element receives light, or the received light amount detected by the received light amount detection unit The amount of light received by the first light receiving element that receives light from a position adjacent to the position of the subject where the second light receiving element receives light is greater than or equal to a predetermined amount of received light. An imaging apparatus comprising a pixel data acquisition unit.
前記複数の第2受光素子のそれぞれは、前記複数の第1受光素子のそれぞれに隣接して配置され、
前記画素データ取得部は、前記受光量検出部が検出した受光量が予め定められた受光量以上である前記第2受光素子に隣接して配置された前記第1受光素子が受光した受光量を電気信号で取得する
請求項1に記載の撮像装置。
Each of the plurality of second light receiving elements is disposed adjacent to each of the plurality of first light receiving elements,
The pixel data acquisition unit receives the received light amount received by the first light receiving element disposed adjacent to the second light receiving element, wherein the received light amount detected by the received light amount detection unit is equal to or greater than a predetermined received light amount. The imaging device according to claim 1, which is acquired by an electrical signal.
前記複数の第1受光素子にそれぞれ接続され、前記複数の第1受光素子が受光した受光量を電気信号で前記画素データ取得部に出力する複数のスイッチ部と、
前記受光量検出部が検出した受光量が予め定められた受光量以上である前記第2受光素子が光を受光する位置と同一の位置、又は前記受光量検出部が検出した受光量が予め定められた受光量以上である前記第2受光素子が光を受光する前記被写体の位置に隣接する位置からの光を受光する前記第1受光素子に接続された前記スイッチ部を導通状態にすることによって、当該第1受光素子が受光した受光量を電気信号で前記画素データ取得部に供給するスイッチ制御部と
をさらに備える請求項1に記載の撮像装置。
A plurality of switch units connected to the plurality of first light receiving elements, respectively, for outputting the received light amounts received by the plurality of first light receiving elements to the pixel data acquisition unit as electrical signals;
The received light amount detected by the received light amount detection unit is equal to or larger than a predetermined received light amount, or the same position as the position where the second light receiving element receives light, or the received light amount detected by the received light amount detection unit is predetermined. The second light receiving element that is greater than or equal to the amount of received light receives the light from a position adjacent to the position of the subject to receive light, and makes the switch portion connected to the first light receiving element conductive. The imaging apparatus according to claim 1, further comprising: a switch control unit that supplies an amount of light received by the first light receiving element to the pixel data acquisition unit using an electrical signal.
前記第2受光素子の受光感度は、前記第1受光素子より受光感度が小さい
請求項1に記載の撮像装置。
The imaging device according to claim 1, wherein the light receiving sensitivity of the second light receiving element is lower than that of the first light receiving element.
前記第2受光素子の受光面積は、前記第1受光素子より受光面積が小さい
請求項4に記載の撮像装置。
The imaging device according to claim 4, wherein a light receiving area of the second light receiving element is smaller than that of the first light receiving element.
前記被写体からの特定の色成分の光を透過して前記第2受光素子に受光させる色フィルタ
をさらに備える請求項1に記載の撮像装置。
The imaging apparatus according to claim 1, further comprising a color filter that transmits light of a specific color component from the subject and causes the second light receiving element to receive the light.
特定の偏光方向の光を透過して前記第2受光素子に受光させる偏光フィルタ
をさらに備える請求項1に記載の撮像装置。
The imaging apparatus according to claim 1, further comprising a polarization filter that transmits light having a specific polarization direction and causes the second light receiving element to receive the light.
前記画素データ取得部は、前記受光量検出部が検出した受光量が予め定められた第1受光量以上であり、前記第1受光量より大きい予め定められた第2受光量以下である前記第2受光素子が光を受光する前記被写体の位置と同一の位置、又は前記受光量検出部が検出した受光量が前記第1受光量以上であり前記第2受光量以下である前記第2受光素子が光を受光する前記被写体の位置に隣接する位置からの光を受光する前記第1受光素子が受光した受光量を電気信号で取得する
請求項1に記載の撮像装置。
The pixel data acquisition unit has a light reception amount detected by the light reception amount detection unit that is equal to or greater than a predetermined first light reception amount and less than a predetermined second light reception amount that is greater than the first light reception amount. The second light receiving element in which the two light receiving elements receive the light at the same position as the position of the subject, or the received light amount detected by the received light amount detection unit is greater than or equal to the first received light quantity and less than or equal to the second received light quantity. The imaging apparatus according to claim 1, wherein the received light amount received by the first light receiving element that receives light from a position adjacent to the position of the subject that receives light is acquired as an electrical signal.
被写体からの光をそれぞれ受光する複数の第1受光素子のそれぞれが光を受光する前記被写体の位置と同一の位置、又は前記複数の第1受光素子のそれぞれが光を受光する前記被写体の位置に隣接する位置からの光をそれぞれ受光する複数の第2受光素子のそれぞれが受光した受光量を検出する受光量検出段階と、
前記受光量検出部が検出した受光量が予め定められた受光量以上である前記第2受光素子が光を受光する前記被写体の位置と同一の位置、又は前記受光量検出部が検出した受光量が予め定められた受光量以上である前記第2受光素子が光を受光する前記被写体の位置に隣接する位置からの光を受光する前記第1受光素子が受光した受光量を電気信号で取得する画素データ取得段階と
を備える撮像方法。
Each of the plurality of first light receiving elements that respectively receive light from the subject is at the same position as the position of the subject that receives the light, or each of the plurality of first light receiving elements is at the position of the subject that receives the light. A received light amount detection stage for detecting a received light amount received by each of the plurality of second light receiving elements that respectively receive light from adjacent positions;
The received light amount detected by the received light amount detection unit is equal to or greater than a predetermined received light amount, the same position as the subject where the second light receiving element receives light, or the received light amount detected by the received light amount detection unit The amount of light received by the first light receiving element that receives light from a position adjacent to the position of the subject where the second light receiving element receives light is greater than or equal to a predetermined amount of received light. An imaging method comprising: a pixel data acquisition stage.
被写体からの光をそれぞれ受光する複数の第1受光素子と、
前記複数の第1受光素子のそれぞれが光を受光する前記被写体の位置と同一の位置、又は前記複数の第1受光素子のそれぞれが光を受光する前記被写体の位置に隣接する位置からの光をそれぞれ受光する複数の第2受光素子と、
前記複数の第2受光素子のそれぞれが受光した受光量を検出する受光量検出部と、
前記受光量検出部が検出した受光量が予め定められた受光量以下である前記第2受光素子が光を受光する前記被写体の位置と同一の位置、又は前記受光量検出部が検出した受光量が予め定められた受光量以下である前記第2受光素子が光を受光する前記被写体の位置に隣接する位置からの光を受光する前記第1受光素子が受光した受光量を電気信号で取得する画素データ取得部と
を備える撮像装置。
A plurality of first light receiving elements that respectively receive light from the subject;
Each of the plurality of first light receiving elements receives light from a position that is the same as the position of the subject that receives light, or a position that is adjacent to the position of the subject that each of the plurality of first light receiving elements receives light. A plurality of second light receiving elements each receiving light;
A received light amount detection unit for detecting a received light amount received by each of the plurality of second light receiving elements;
The received light amount detected by the received light amount detection unit is equal to or less than a predetermined received light amount, the same position as the subject where the second light receiving element receives light, or the received light amount detected by the received light amount detection unit The amount of light received by the first light receiving element that receives light from a position adjacent to the position of the subject on which the second light receiving element receives light is acquired by an electrical signal. An imaging apparatus comprising a pixel data acquisition unit.
被写体からの光をそれぞれ受光する複数の第1受光素子のそれぞれが光を受光する前記被写体の位置と同一の位置、又は前記複数の第1受光素子のそれぞれが光を受光する前記被写体の位置に隣接する位置からの光をそれぞれ受光する複数の第2受光素子のそれぞれが受光した受光量を検出する受光量検出段階と、
前記受光量検出段階において検出された受光量が予め定められた受光量以下である前記第2受光素子が光を受光する前記被写体の位置と同一の位置、又は前記受光量検出部が検出した受光量が予め定められた受光量以下である前記第2受光素子が光を受光する前記被写体の位置に隣接する位置からの光を受光する前記第1受光素子が受光した受光量を電気信号で取得する画素データ取得段階と
を備える撮像方法。
Each of the plurality of first light receiving elements that respectively receive light from the subject is at the same position as the position of the subject that receives the light, or each of the plurality of first light receiving elements is at the position of the subject that receives the light. A received light amount detection stage for detecting a received light amount received by each of the plurality of second light receiving elements that respectively receive light from adjacent positions;
The received light amount detected in the received light amount detection step is equal to or less than a predetermined received light amount, the same position as the subject where the second light receiving element receives light, or the received light amount detected by the received light amount detector. The amount of light received by the first light-receiving element that receives light from a position adjacent to the position of the subject on which the second light-receiving element receives light is less than a predetermined amount of light received by an electrical signal And a pixel data acquisition stage.
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