JPH06125562A - Image pickup device - Google Patents
Image pickup deviceInfo
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- JPH06125562A JPH06125562A JP4297727A JP29772792A JPH06125562A JP H06125562 A JPH06125562 A JP H06125562A JP 4297727 A JP4297727 A JP 4297727A JP 29772792 A JP29772792 A JP 29772792A JP H06125562 A JPH06125562 A JP H06125562A
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- Prior art keywords
- signal
- color
- image pickup
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はビデオカメラ等の撮像装
置に関し、特に単板式固体撮像素子の色コーディング及
び処理に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image pickup device such as a video camera, and more particularly to color coding and processing of a single-plate type solid-state image pickup device.
【０００２】[0002]
【従来の技術】従来この種の撮像装置においては、図９
に示すような補色モザイクフィルタ方式による信号生成
が行われていた。すなわちフィールド蓄積を基本として
おり、各信号は垂直２画素が固体センサ（ＣＣＤ等の撮
像素子）内で加算される。図９の（ａ）という組み合わ
せラインでは、図１０（ａ）に示すように Ｍｇ＋Ｃｙ，Ｇ＋Ｙｅ，Ｍｇ＋Ｃｙ，Ｇ＋Ｙｅ・・・ という信号が出力される。2. Description of the Related Art Conventionally, in this type of image pickup apparatus, FIG.
Signal generation has been performed by the complementary color mosaic filter method as shown in FIG. That is, it is based on field accumulation, and vertical 2 pixels of each signal are added in a solid-state sensor (image pickup device such as CCD). In the combination line (a) in FIG. 9, signals Mg + Cy, G + Ye, Mg + Cy, G + Ye ... Are output as shown in FIG. 10 (a).
【０００３】また、図９の（ｂ）という組み合わせライ
ンでは図１０（ｂ）に示すように Ｍｇ＋Ｙｅ，Ｇ＋Ｃｙ，Ｍｇ＋Ｙｅ，Ｇ＋Ｃｙ・・・ という信号が出力される。In the combination line of FIG. 9B, signals of Mg + Ye, G + Cy, Mg + Ye, G + Cy ... Are output as shown in FIG. 10B.
【０００４】図１１に示すように、センサ１から出力さ
れた上記各信号はＣＤＳ回路（相関２重サンプリング回
路）２でクロックノイズ等を除去された後、ＬＰＦ（ロ
ーパスフィルタ）３を経て輝度信号Ｙが出力される。ま
た、色信号についてはＣＤＳ回路２の出力がサンプルホ
ールド回路４、５を経て減算回路６に加えられることに
より、上記（ａ）の場合には （Ｍｇ＋Ｃｙ）−（Ｇ＋Ｙｅ）≒２Ｂ−ＧAs shown in FIG. 11, each signal output from the sensor 1 is subjected to a CDS circuit (correlation double sampling circuit) 2 to remove clock noise and the like, and then passed through an LPF (low pass filter) 3 to obtain a luminance signal. Y is output. As for the color signal, the output of the CDS circuit 2 is added to the subtraction circuit 6 via the sample hold circuits 4 and 5, so that (Mg + Cy) − (G + Ye) ≈2B−G in the case of (a).
【０００５】（ｂ）の場合には （Ｍｇ＋Ｙｅ）−（Ｇ＋Ｃｙ）≒２Ｒ−Ｇ という色信号Ｃが形成される。以上から得られた輝度信
号Ｙ、色信号Ｃは後段のプロセス回路等を経てビデオ信
号となる。In the case of (b), a color signal C of (Mg + Ye)-(G + Cy) ≉2R-G is formed. The luminance signal Y and the color signal C obtained as described above become a video signal through a process circuit in the subsequent stage.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら上記従来
例においては、水平・垂直方向に２画素ずつ、計４画素
を繰り返しパターンとしているために、水平方向の解像
度が損なわれてしまうという欠点があった。例えば、Ｎ
ＴＳＣ方式において、水平７８０画素（サンプリング周
波数１４ＭＨＺ）のセンサにこの方式を用いた場合、限
界解像度は ７８０×０．６３≒４９０ （本）程度 となり、十分とはいえない。However, in the above-mentioned conventional example, there is a drawback that the resolution in the horizontal direction is impaired because the pattern has a repeating pattern of two pixels in the horizontal and vertical directions and a total of four pixels. . For example, N
In the TSC system, when this system is used for a sensor of horizontal 780 pixels (sampling frequency 14 MHz), the limit resolution is about 780 × 0.63≈490 (lines), which is not sufficient.
【０００７】本発明は上記のような問題を解決するため
になされたもので、高解像度を得ることのできる撮像装
置を提供することを目的としている。The present invention has been made to solve the above problems, and an object of the present invention is to provide an image pickup apparatus capable of obtaining high resolution.
【０００８】[0008]
【課題を解決するための手段】本発明においては、格子
状に配列された複数の画素を有し、上記各画素に対して
水平方向に同一色、垂直方向に３つ以上のくり返しで相
異なる色フィルタを配置して成る撮像素子を設けてい
る。According to the present invention, a plurality of pixels arranged in a grid pattern are provided, and each pixel has the same color in the horizontal direction and three or more repetitions in the vertical direction, which are different from each other. An image sensor including color filters is provided.
【０００９】また、本発明においては、１ライン毎に水
平方向にオフセット状に配列された複数の画素を有し、
上記各画素に対して水平方向に同一色、垂直方向に３つ
以上のくりかえしで相異なる色フィルタを配置して成る
撮像素子を設けている。Further, in the present invention, each pixel has a plurality of pixels arranged in an offset shape in a horizontal direction for each line,
An image pickup device is provided in which the respective pixels have the same color in the horizontal direction and three or more different color filters are repeatedly arranged in the vertical direction.
【００１０】[0010]
【作用】本発明によれば、色フィルタを水平ストライプ
状に配列したことにより、垂直方向３画素の信号を加算
して輝度信号を作ることで高解像度が得られる。According to the present invention, by arranging the color filters in a horizontal stripe shape, signals of three pixels in the vertical direction are added to form a luminance signal, so that high resolution can be obtained.
【００１１】また、本発明によれば、オフセット配置さ
れた固体センサにおいて色フィルタを水平ストライプ状
に配列したことにより、輝度信号を垂直方向３画素を用
いて作ることで高解像度が得られる。Further, according to the present invention, since the color filters are arranged in a horizontal stripe shape in the offset-positioned solid state sensor, a high-resolution can be obtained by forming a luminance signal using three pixels in the vertical direction.
【００１２】[0012]
【実施例】以下、第１の発明の実施例を図面に従って説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the first invention will be described below with reference to the drawings.
【００１３】図１に示すように、固体センサ上において
水平方向にイエロー色（以下Ｙｅ）、グリーン色（以下
Ｇ）、シアン色（以下Ｃｙ）の色フィルタ３色の繰り返
しで水平ストライプ状に配置されている。As shown in FIG. 1, three color filters of yellow color (hereinafter Ye), green color (hereinafter G) and cyan color (hereinafter Cy) are horizontally arranged on a solid-state sensor in a horizontal stripe pattern. Has been done.
【００１４】図２においてセンサ１からの信号出力はＡ
／Ｄ変換器７に入力してデジタル信号になる。その１水
平ライン分の信号は３本の１Ｈラインメモリを用いたラ
インメモリ回路８に貯えられる。そして順次２水平ライ
ン分、計３水平ライン分の信号が貯えられる。色の繰り
返しは３色ごとであるため、３水平ライン分のメモリに
は必ずＹｅ、Ｇ、Ｃｙの組み合わせで信号が貯えられる
ことになる。そしてその３ライン分のデジタルデータか
らＹ信号生成回路９を経て輝度信号が、また減算回路１
０を経て色信号が作り出され、それぞれＤ／Ａ変換器１
１、１２を経てアナログの輝度信号Ｙ及び色信号Ｃとし
て出力される。In FIG. 2, the signal output from the sensor 1 is A
It is input to the / D converter 7 and becomes a digital signal. The signal for one horizontal line is stored in the line memory circuit 8 using three 1H line memories. Then, signals for two horizontal lines, that is, a total of three horizontal lines are sequentially stored. Since the colors are repeated every three colors, the signals for the combinations of Ye, G, and Cy are always stored in the memory for three horizontal lines. Then, the luminance signal is subtracted from the digital data of the three lines through the Y signal generation circuit 9 and the subtraction circuit 1
A color signal is created through 0, and each D / A converter 1
It is output as analog luminance signal Y and color signal C via 1 and 12.
【００１５】次に図３を用いて輝度信号Ｙの作り方につ
いて説明する。ｎライン目の輝度信号Ｙn は、 ｎ−１ライン目の Ｙｅ ｎ ライン目の Ｇ ｎ＋１ライン目の Ｃｙ を垂直方向に加算して得られる。Next, a method of creating the luminance signal Y will be described with reference to FIG. The luminance signal Y n on the n-th line is obtained by vertically adding the Cy on the n−1-th line, the Y n -th line, and the G n + 1-th line Cy.
【００１６】すなわち Ｙn ＝Ｙｅ＋Ｇ＋ＣｙThat is, Y n = Ye + G + Cy
【００１７】同様にしてｎ＋１ライン目の輝度信号Ｙ
n+1 は Ｙn+1 ＝Ｇ＋Ｃｙ＋Ｙｅ のように作り出される。Similarly, the luminance signal Y of the (n + 1) th line
n + 1 is created as Y n + 1 = G + Cy + Ye.
【００１８】本発明方式の特徴は各ラインで作り出され
る輝度信号Ｙの各色信号の成分比がＣｙ＋Ｇ＋Ｙｅで一
定であるためにライン段差が生じないことである。The feature of the system of the present invention is that the line step does not occur because the component ratio of each color signal of the luminance signal Y produced in each line is constant at Cy + G + Ye.
【００１９】次に図４を用いて色信号の作り方について
説明する。Ｒ信号はＹｅからその距離が最も近いＧを減
算することにより得られる。すなわち Ｒ＝Ｙｅ−ＧNext, a method of creating a color signal will be described with reference to FIG. The R signal is obtained by subtracting G having the shortest distance from Ye. That is, R = Ye-G
【００２０】同様に Ｂ＝Ｃｙ−ＧSimilarly, B = Cy-G
【００２１】尚、当然のことながらすべての水平ライン
に対してＲ，Ｂ両方の色信号は得られないが、ラインメ
モリ等を用いて同時化を行えばよい。Naturally, both R and B color signals cannot be obtained for all the horizontal lines, but they may be synchronized by using a line memory or the like.
【００２２】上記実施例ではＣｙ，Ｇ，Ｙｅの組み合わ
せとしたが、他の組み合わせでもよいのは言うまでもな
い。In the above embodiment, the combination of Cy, G and Ye is used, but it goes without saying that other combinations may be used.
【００２３】次に、第２の発明の実施例を図面に従って
説明する。Next, an embodiment of the second invention will be described with reference to the drawings.
【００２４】図５に示すように固体センサ上において水
平方向にＹｅ，Ｇ，Ｃｙの色フィルタが３色の繰り返し
で配置されている。この色配置の順序は図１と同様であ
るが、この図５では図示のように１ライン置きに各画素
の位置が水平方向にオフセットされている。As shown in FIG. 5, color filters of Ye, G, and Cy are arranged in a horizontal direction on the solid-state sensor by repeating three colors. The order of this color arrangement is the same as in FIG. 1, but in FIG. 5, the position of each pixel is horizontally offset every other line as shown in FIG.
【００２５】図６において、センサ１からの信号出力は
Ａ／Ｄ変換器２でデジタル信号になり、その１水平ライ
ン分の信号はラインメモリ回路８のラインメモリに貯え
られる。そして順次２水平ライン分、計３水平ライン分
の信号が貯えられる。色の繰り返しは３色ごとであるた
め、３水平ライン分のメモリには必ずＹｅ，Ｇ，Ｃｙの
組み合わせで信号が貯えられることになる。そしてその
３ライン分のデジタルデータからＹ信号生成回路９を経
て輝度信号が、また後述する帯域制限用のローパスフィ
ルタ（ＬＰＦ）１３、減算回路１０を経て色信号Ｃが作
り出され、それぞれＤ／Ａ変換器１１、１２を経てアナ
ログの輝度信号Ｙ及び色信号Ｃとして出力される。In FIG. 6, the signal output from the sensor 1 is converted into a digital signal by the A / D converter 2, and the signal for one horizontal line is stored in the line memory of the line memory circuit 8. Then, signals for two horizontal lines, that is, a total of three horizontal lines are sequentially stored. Since the colors are repeated every three colors, the signals for the combinations of Ye, G, Cy are always stored in the memory for three horizontal lines. Then, from the digital data of the three lines, a luminance signal is generated via the Y signal generation circuit 9, and a color signal C is generated via a low pass filter (LPF) 13 for band limitation and a subtraction circuit 10 which will be described later. The analog luminance signal Y and the color signal C are output via the converters 11 and 12.
【００２６】次に図７を用いて輝度信号の作り方につい
て説明する。例えば２ライン目の水平輝度信号Ｙ2nは次
のように表される。Next, a method of creating a luminance signal will be described with reference to FIG. For example, the horizontal luminance signal Y 2n on the second line is expressed as follows.
【００２７】 Ｙ2n＝Ｙ21，Ｙ22，Ｙ23，Ｙ24，Ｙ25・・・・・・・・ ＝｛（Ｙｅ11＋Ｙｅ12＋２Ｇ11＋Ｃｙ11＋Ｃｙ12）／６｝，｛（２Ｙｅ12 ＋Ｇ11＋Ｇ12＋２Ｃｙ12）／６｝，｛（Ｙｅ12＋Ｙｅ13＋２Ｇ12＋Ｃｙ12＋Ｃｙ 13 ）／６｝，・・・Y2n= Ytwenty one, Ytwenty two, Ytwenty three, Ytwenty four, Ytwenty five・ ・ ・ ・ ・ ・ ・ ・ = {(Ye11+ Ye12+ 2G11+ Cy11+ Cy12) / 6}, {(2Ye12 + G11+ G12+ 2Cy12) / 6}, {(Ye12+ Ye13+ 2G12+ Cy12+ Cy 13 ) / 6}, ...
【００２８】同様に３ライン目の水平輝度信号Ｙ3nは次
のように表わされる。Similarly, the horizontal luminance signal Y 3n of the third line is expressed as follows.
【００２９】 Ｙ3n＝Ｙ31，Ｙ32．Ｙ33，Ｙ34・・・・・ ＝｛（２Ｇ11＋Ｃｙ11＋Ｃｙ12＋２Ｙｅ21）／６｝，｛（Ｇ11＋Ｇ12＋２ Ｃｙ12＋Ｙｅ21＋Ｙｅ22）／６｝，（２Ｇ12＋Ｃｙ12＋Ｃｙ13＋２Ｙｅ22）／６ ｝，・・・Y 3n = Y 31 , Y 32 . Y 33 , Y 34 ... = {(2G 11 + Cy 11 + Cy 12 + 2Ye 21 ) / 6}, {(G 11 + G 12 +2 Cy 12 + Ye 21 + Ye 22 ) / 6}, (2G 12 + Cy 12 + Cy) 13 +2 Ye 22 ) / 6}, ...
【００３０】このように各ラインの輝度信号はどのライ
ンにおいても Ｙ＝Ｙｅ＋Ｇ＋Ｃｙ という一定の比率で生成されるため、ライン段差を生じ
ることがない。次に色信号の作り方について説明する。As described above, since the luminance signal of each line is generated at a constant ratio of Y = Ye + G + Cy in any line, no line step is generated. Next, a method of creating a color signal will be described.
【００３１】まず１ライン目のＹｅ信号列である Ｙｅ1n＝Ｙｅ11，Ｙｅ12，Ｙｅ13，Ｙｅ14，Ｙｅ15・・・ に対して上記ＬＰＦ１３による帯域制限を行う。First, the band limitation by the LPF 13 is performed for Ye 1n = Ye 11 , Ye 12 , Ye 13 , Ye 14 , Ye 15, ...
【００３２】同様にして２ライン目のＧ信号列である Ｇ1n＝Ｇ11，Ｇ12，Ｇ13，Ｇ14・・・Similarly, the G signal sequence of the second line is G 1n = G 11 , G 12 , G 13 , G 14 ...
【００３３】また、３ライン目のＣｙ信号列である Ｃｙ1n＝Ｃｙ11，Ｃｙ12，Ｃｙ13，Ｃｙ14・・・ に対してもＬＰＦ１３によって帯域制限を行う。これに
よって得られた低域色信号列ＹｅL1n ，ＧL1n ，Ｃｙ
L1n から垂直方向に減算することにより赤信号
（ＲL ）、青信号（ＢL ）を得る。The LPF 13 also limits the band for Cy 1n = Cy 11 , Cy 12 , Cy 13 , Cy 14, ... The low-pass color signal sequence Ye L1n , G L1n , Cy obtained by this
A red signal ( RL ) and a blue signal ( BL ) are obtained by vertically subtracting from L1n .
【００３４】すなわち、以下の計算による。 ＲL1n ＝ＹｅL1n −ＧL1n ＢL1n ＝ＣｙL1n −ＧL1n That is, the following calculation is performed. RL1n = Ye L1n - GL1n BL1n = Cy L1n - GL1n
【００３５】尚、当然のことながらすべての水平ライン
に対してＲ、Ｂ両方の色信号は得られないが、ラインメ
モリ等を用いて同時化を行えばよい。Of course, both R and B color signals cannot be obtained for all the horizontal lines, but they can be synchronized by using a line memory or the like.
【００３６】上記実施例では輝度信号生成の際に補間に
相当する計算方法を用いたが、図８に示すように３画素
Ｙｅ，Ｇ，Ｃｙの加算により行ってもよい。その場合の
輝度信号は次のようになる。In the above embodiment, the calculation method corresponding to the interpolation is used when the luminance signal is generated, but the calculation may be performed by adding the three pixels Ye, G and Cy as shown in FIG. The luminance signal in that case is as follows.
【００３７】 Ｙ2n＝Ｙ21，Ｙ22，Ｙ23，Ｙ24・・・ ＝｛（Ｙｅ11＋Ｇ11＋Ｃｙ11）／３｝，｛（Ｙｅ12＋Ｇ11＋Ｃｙ12）／３ ｝，｛（Ｙｅ12＋Ｇ12＋Ｃｙ12）／３｝，・・・Y 2n = Y 21 , Y 22 , Y 23 , Y 24 ... = {(Ye 11 + G 11 + Cy 11 ) / 3}, {(Ye 12 + G 11 + Cy 12 ) / 3}, {(Ye 12 + G 12 + Cy 12 ) / 3}, ...
【００３８】[0038]
【発明の効果】以上述べたように、第１の発明によれ
ば、格子状に配列された複数の画素を有し、上記各画素
に対して水平方向に同一色、垂直方向に３つ以上のくり
返しで相異なる色フィルタを配置して成る撮像素子を設
けたことにより、簡単な構成で高い水平解像度が得るこ
とができる撮像装置を提供することができる。例えば、
ＮＴＳＣ方式において水平７８０画素のセンサを用いた
場合は、 ７８０×０．８≒６００（本） 程度の水平解像度が期待できる。しかもライン段差等の
不具合を生じないために、均一で良質な画質が得られ
る。As described above, according to the first aspect of the present invention, a plurality of pixels arranged in a grid pattern are provided, and each pixel has the same color in the horizontal direction and three or more in the vertical direction. By providing the image pickup element in which different color filters are repeatedly arranged, it is possible to provide an image pickup apparatus capable of obtaining high horizontal resolution with a simple configuration. For example,
When a horizontal 780 pixel sensor is used in the NTSC system, a horizontal resolution of about 780 × 0.8≈600 (lines) can be expected. Moreover, since there is no problem such as a line step, uniform and high quality image can be obtained.
【００３９】また、第２の発明によれば、１ライン毎に
水平方向にオフセット状に配列された複数の画素を有
し、上記各画素に対して水平方向に同一色、垂直方向に
３つ以上のくり返しで相異なる色フィルタを配置して成
る撮像素子を設けたことにより、オフセット配置された
画素の特徴である高い水平解像度が生かせるばかりでな
く、ライン段差のない均質な画質が簡易な構成で実現で
きる。According to the second aspect of the invention, each pixel has a plurality of pixels arranged in an offset shape in the horizontal direction for each line, and has the same color in the horizontal direction and three pixels in the vertical direction with respect to each pixel. By providing the image sensor in which the different color filters are arranged by repeating the above, not only the high horizontal resolution which is the feature of the pixels arranged in the offset can be utilized, but also the uniform image quality without the line step can be simply constructed. Can be achieved with.
【図面の簡単な説明】[Brief description of drawings]
【図１】第１の発明の実施例による色フィルタのパター
ンを示す構成図である。FIG. 1 is a configuration diagram showing a pattern of a color filter according to an embodiment of the first invention.
【図２】上記実施例による撮像装置のブロック図であ
る。FIG. 2 is a block diagram of an image pickup apparatus according to the above embodiment.
【図３】輝度信号の作り方を説明する構成図である。FIG. 3 is a configuration diagram illustrating how to create a luminance signal.
【図４】色信号の作り方を説明する構成図である。FIG. 4 is a configuration diagram illustrating how to create a color signal.
【図５】第２の発明の実施例による色フィルタのパター
ンを示す構成図である。FIG. 5 is a configuration diagram showing a pattern of a color filter according to an embodiment of the second invention.
【図６】上記実施例による撮像装置のブロック図であ
る。FIG. 6 is a block diagram of an image pickup apparatus according to the above embodiment.
【図７】輝度信号の作り方を説明する構成図である。FIG. 7 is a configuration diagram illustrating how to create a luminance signal.
【図８】輝度信号の他の作り方を説明する構成図であ
る。FIG. 8 is a configuration diagram illustrating another method of creating a luminance signal.
【図９】従来の撮像装置に用いられる色フィルタのパタ
ーンを示す構成図である。FIG. 9 is a configuration diagram showing a pattern of a color filter used in a conventional image pickup apparatus.
【図１０】従来の信号の形成方法を説明する波形図であ
る。FIG. 10 is a waveform diagram illustrating a conventional signal forming method.
【図１１】従来の撮像装置のブロック図である。FIG. 11 is a block diagram of a conventional imaging device.
１ センサ ９ Ｙ信号生成回路 １０ 減算回路 1 sensor 9 Y signal generation circuit 10 subtraction circuit
Claims (5)
上記各画素に対して水平方向に同一色、垂直方向に３つ
以上のくり返しで相異なる色フィルタを配置して成る撮
像素子を備えた撮像装置。1. Having a plurality of pixels arranged in a grid pattern,
An image pickup device comprising an image pickup device in which three or more different color filters are repeatedly arranged in the horizontal direction and the same color in the vertical direction with respect to each pixel.
色の３画素の信号を加算して得られる信号を輝度信号と
することを特徴とする請求項１記載の撮像装置。2. The image pickup device according to claim 1, wherein a signal obtained by adding signals of three pixels of different colors in the vertical direction in the image pickup element is used as a luminance signal.
列され、その１ライン置きの画素の位置が水平方向にオ
フセットされて配列され、上記各画素に対して水平方向
に同一色、垂直方向に３つ以上のくり返しで相異なる色
フィルタを配置して成る撮像素子を備えた撮像装置。3. A plurality of pixels are arranged on each of a plurality of lines, and the positions of the pixels on every other line are arranged so as to be offset in the horizontal direction. An image pickup apparatus comprising an image pickup element in which three or more different color filters are repeatedly arranged.
色の３画素の信号を交互に選択加算して得られる信号を
輝度信号とすることを特徴とする請求項３記載の撮像装
置。4. The image pickup device according to claim 3, wherein a signal obtained by alternately selectively adding signals of three pixels of different colors in the image pickup element in the vertical direction is used as a luminance signal.
の複数の画素の信号を所定の比率で加算して得られる信
号を輝度信号とすることを特徴とする請求項３記載の撮
像装置。5. The image pickup apparatus according to claim 3, wherein a signal obtained by adding signals of a plurality of pixels in the vertical and horizontal directions in the image pickup element at a predetermined ratio is used as a luminance signal.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29772792A JP3450361B2 (en) | 1992-10-09 | 1992-10-09 | Imaging device |
| US08/133,214 US5541648A (en) | 1992-10-09 | 1993-10-07 | Color image pickup apparatus having a plurality of color filters arranged in an offset sampling structure |
| US08/644,251 US5737017A (en) | 1992-10-09 | 1996-05-10 | Color image pickup apparatus having a plurality of color filters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29772792A JP3450361B2 (en) | 1992-10-09 | 1992-10-09 | Imaging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06125562A true JPH06125562A (en) | 1994-05-06 |
| JP3450361B2 JP3450361B2 (en) | 2003-09-22 |
Family
ID=17850401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29772792A Expired - Fee Related JP3450361B2 (en) | 1992-10-09 | 1992-10-09 | Imaging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3450361B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7595826B2 (en) | 1997-01-08 | 2009-09-29 | Ricoh Company, Ltd. | Method a system for improving resolution in color image data generated by a color image sensor |
| US8179456B2 (en) | 2007-11-05 | 2012-05-15 | Samsung Electronics Co., Ltd | Image sensors, color filter arrays included in the image sensors, and image pickup apparatuses including the image sensors |
-
1992
- 1992-10-09 JP JP29772792A patent/JP3450361B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7595826B2 (en) | 1997-01-08 | 2009-09-29 | Ricoh Company, Ltd. | Method a system for improving resolution in color image data generated by a color image sensor |
| US8179456B2 (en) | 2007-11-05 | 2012-05-15 | Samsung Electronics Co., Ltd | Image sensors, color filter arrays included in the image sensors, and image pickup apparatuses including the image sensors |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3450361B2 (en) | 2003-09-22 |
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