JPH0712218B2 - Color solid-state imaging device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color solid-state image pickup device including a solid-state image pickup device in which a plurality of light-receiving devices are arranged in both horizontal and vertical directions. The present invention relates to an arrangement configuration of mosaic color filters arranged in the above.

[Prior Art] FIG. 18 is a diagram showing an arrangement configuration of a mosaic color filter (hereinafter, referred to as a filter) in a conventional color solid-state imaging device disclosed in, for example, Japanese Patent Laid-Open No. 51-112228. In FIG. 18, a green light transmission filter (hereinafter referred to as a G filter) is set to 1 in both horizontal and vertical directions.
The red light transmission filters (hereinafter, referred to as “R filters”) and the blue light transmission filters (hereinafter, referred to as “B filters”) are arranged in every other row and are arranged in a horizontal checkered pattern. It is located in between.

The R, G, and B filters that make up the filter described above are arranged at positions corresponding to the respective light-receiving elements arranged in the horizontal and vertical directions, and the incident light image is filtered by a red filter. , Green and blue color components are sampled, and one light receiving element detects one type of color light component.

FIG. 19 is a characteristic diagram of a conventional filter when a color light carrier described later is represented by a two-dimensional frequency plane.

[Problems to be Solved by the Invention] In the conventional color solid-state imaging device including the filter configured as described above, since the G filters are arranged in a checkered pattern, the resolution in the oblique direction with respect to the green light image is low. Further, since the vertical arrangement interval of the R and B filters is twice as large as that of the G filter, the resolution for the red light image and the blue light image is lower than the resolution for the green light image. However, there is a problem in that moire fringes are likely to be generated.

Therefore, a main object of the present invention is to provide a color solid-state image pickup device having a good resolution and having less moire.

[Means for Solving Problems] A color solid-state imaging device according to the present invention includes four types of color filters arranged corresponding to light receiving elements and having different spectral transmission characteristics for every four pixels in the horizontal and vertical directions. The pixels are arranged in a mosaic pattern so as to be repeated, and 16 pixel positions of 4 pixels in the horizontal direction and 4 pixels in the vertical direction, which is one unit of this array pattern, are defined as Cxy; x, y = 1 to 4 (where x is a horizontal line). Direction, y represents the vertical direction), and C ₁₄ , C ₂₂ , C ₃₃ , C ₄₁ is the first
Color filters are arranged, a second color filter is arranged at C ₁₁ , C ₂₃ , C ₃₂ , C _44, and a third color filter is arranged at C ₁₂ , C ₂₄ , C ₃₁ , C _43. , C ₁₃ , C ₂₁ , C ₃₄ , and C ₄₂ are each provided with a fourth color filter, and the spectral transmission characteristics of these four color filters, first to fourth, are compared with white light of a predetermined color temperature. Thus, the output signal levels of the pixels in which the respective color filters are arranged are equal to each other.

[Operation] In the color solid-state imaging device according to the present invention, the first to the fourth
The four color filters of (4) have their spectral characteristics such that the output signal levels of the pixels in which the respective color filters are arranged are equal to white light of a predetermined color temperature. Therefore, with respect to achromatic light, the output corresponding to the incident light image is correctly output from each pixel, although the spectral transmission characteristics of each color filter are different, so that a very high resolution can be obtained.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing an arrangement of 16 pixels which is a unit of arrangement of color filters in an embodiment of the present invention. In FIG. 1, Mg is a magenta color transmitting color filter (hereinafter referred to as Mg filter), G is a green transmitting color filter (hereinafter referred to as G filter), and Cy is a cyan color transmitting color filter. (Hereinafter, referred to as Cy filter), and Ye is a color filter that transmits yellow (hereinafter, referred to as Ye filter). In this embodiment, the first color filter is an Mg filter, the second color filter is a G filter, the third color filter is a Cy filter, and the fourth color filter is Ye.
Shows a filter.

FIG. 2 is a schematic diagram showing the spectral transmission characteristics of the Mg, G, Cy, and Ye filters used in the embodiment of the present invention. In particular, FIG. 2 (a) shows the spectrum of a predetermined white light. , (B)
Shows the spectral transmission characteristic of the Mg filter, (C) shows the spectral transmission characteristic of the G filter, (D) shows the spectral transmission characteristic of the Cy filter, and (E) shows the spectral transmission characteristic of the Ye filter.

First, the color filter array shown in FIG. 1 will be described. The light transmitted through the color filter is photoelectrically converted by the light receiving element, and an electric signal corresponding to the amount of light is output, so that the incident light image is two-dimensionally sampled by the array of the color filters. FIG. 3 shows the sampling of the incident light by the color filter for the green light component, the red light component, and the blue light component.

In FIG. 3, G, R, and B indicate that green, red, and blue components are sampled, and 0 indicates that they are not sampled. Further, the coefficient in FIG. 3 is a coefficient determined by the spectral transmission characteristic of each color filter shown in FIG.

Thus, the sampling shown in the horizontal and vertical planes (xy plane) is represented by the two-dimensional frequency plane (fxfy plane) in the horizontal and vertical directions by obtaining the Fourier transform thereof, as shown in FIG. become. In FIG. 4, arrows indicate carriers of each color, the length of the arrows indicates the size of the carriers, and the direction of the arrows indicates the phase relationship when a predetermined phase is used as a reference. The green carrier (G carrier), red carrier (R carrier), and blue carrier (B carrier) are on the fx axis and fy axis, respectively.
There is no carrier other than 0 and 2π, and it has the highest resolution in the horizontal and vertical directions. Also, since the positions of carrier generation are sufficiently separated in the diagonal direction as well,
The resolution is not significantly deteriorated as compared with the vertical direction, and the carriers generated in the oblique direction are RG and BG carriers, which completely cancel each other with respect to an achromatic color and disappear.
This is more apparent when compared with FIG. 19 showing the arrangement of carriers of the conventional color filter array shown in FIG.

Next, an embodiment of a color solid-state image pickup device using the color filter shown in FIG. 1 will be described. Although the processing contents of the image pickup device differ depending on the system used, in this embodiment, interlace scanning is performed, and as a solid-state image pickup device, a signal for one frame is independently set to two rows each.
It was supposed to be read in the field.

FIG. 5 is a schematic block diagram of an embodiment of the present invention.
In FIG. 5, the lesbian optical system 1 is arranged in front of the solid-state image sensor 2 having a color filter, the signal line of the output signal S1 of the solid-state image sensor 2 is connected to the two-dimensional filters 6, 9 and 12, and the output The signal line of the signal S2 is a two-dimensional filter 9
And connected to 12. The two-dimensional filter 6 includes a 1H delay line 3 for delaying the output signal S1 of the solid-state image pickup device 2 given via a signal line by one horizontal scanning time, a subtractor 4 and a high pass filter (HPF) 5.

Further, the two-dimensional filter 9 is a subtractor 7 for subtracting the output signals S1 and S2 of the solid-state image pickup device 2 given through the signal line.
And a bandpass filter (BPF) 8. Further, the two-dimensional filter 12 includes an adder 10 and a low-pass filter (LPF) 11 that add the output signals S1 and S2 of the solid-state image pickup device 2 given via the signal line. The output of the two-dimensional filter 6 is given to the modulator 13 and modulated, and the modulated output is given to the encoder 15. Similarly, the output of the two-dimensional filter 9 is modulated by the modulator 14 and given to the encoder 15. The output of the two-dimensional filter 12 is directly applied to the encoder 15 without being modulated. The encoder 15 outputs a video signal of a predetermined television system, and outputs its encoded output to the output terminal 16.

6 and 7 are views for explaining the operation of the image pickup apparatus shown in FIG.

Next, the operation of the image pickup apparatus will be described with reference to FIGS. First, FIG. 6 shows signals of respective parts in a certain field. In the m-th scanning line, signals of pixels in the n-th and n + 1-th rows are S2 and S1.
Are simultaneously read out from the line. At this time, looking at the output of the subtractor 4, the input of the subtractor 4 is the m-th signal S1.
As shown in FIG. 6, the output of the (m−1) th signal S1 is the red component (R component) minus the green component (G component), and the sign of the (R−G) / 2 signal is per pixel. It becomes a form that is inverted to.

Subtracting the m-1th signal S1 from the mth signal S1 means subtracting the signal of the pixel two rows before from the signal of the pixel at the current time, which is the coordinate system shown in FIG. In other words, it is equivalent to configuring a vertical bandpass filter that maximizes the response when fy = π / 2. The frequency of positive and negative repetitions for each pixel corresponds to the π frequency, and the high-pass filter 5 following the subtractor 4 has the maximum response at the π frequency.

Therefore, a block of a two-dimensional filter including a vertical filter having a maximum response at fy = π / 2, which includes a 1H delay line 3 and a subtractor 4, and a high-pass filter 5 having a maximum response at fx = π. 6 is (fx, fy) =
It is a filter that passes only the components near (π, π / 2). Then, the (R-G) / 2 signal that has passed through the block 6 of the two-dimensional filter is modulated by the modulator 13 and becomes a baseband (R-G) / 2 signal.

Next, looking at the output of the subtractor 7, it is found that the sign of the (B−G) / 2 signal obtained by subtracting the G component from the blue component (B component) is inverted every two pixels, and its frequency is Is equivalent to π / 2. Therefore, the bandpass filter following the subtractor 7 is one that maximizes the response when fx = π / 2. The operation of the subtractor 7 is to subtract the signal of the pixel of the previous row from the signal of the current pixel, which is a vertical high-pass filter that maximizes the response when fx = π.

Therefore, the block 9 of the two-dimensional filter including the subtractor 7 and the bandpass filter 8 is (fx, fy) = (π / 2,
It is a filter that maximizes the response at π). Then, it passes through the block 9 of this two-dimensional filter (B-
The G) / 2 signal is modulated by the modulator 14 to become a baseband (B−G) / 2 signal.

The output of the adder 10 has 3 * G / 2 + B / 2 and G / 2 + B / 2 + R alternately appearing, and this signal is smoothed by the next low-pass filter 11 to be the G + B / 2 + R / 2 signal. Become. The operation of the adder 10 is equivalent to a vertical low-pass filter in which the response is maximized when fy = 0 by adding the signal of the pixel one row before and the signal of the current pixel. Therefore, the block 12 of the two-dimensional filter including the adder 10 and the low-pass filter 11 has (fx, fy) =
It is a two-dimensional low-pass filter with maximum response at (0,0).

(R−G) / 2, (B−G) / extracted as described above
The encoder 15 outputs the signals of 2, G + B / 2 + R / 2 as a predetermined video signal.

Next, referring to FIG. 7, let us look at the case of another field. In this field, in the m-th scanning line, the signals of the pixels in the (n-1) th and n-th rows are the signals S2, S.
Read from line 1 at the same time. At this time, the subtractor 7
The sign of the (RG) / 2 signal is inverted every one pixel, and the sign of the (BG) / 2 signal is inverted every two pixels. That is, the (R−G) / 2 signal has a π frequency,
The (BG) / 2 signal has a π / 2 frequency, and the subtractor 7
The (R−G) / 2 signal is cut off by the band pass filter 8 having the center frequency π / 2 following, and only the (B−G) / 2 signal is input to the next modulator 14.

The outputs of the blocks 6 and 11 of the two-dimensional filter are (RG) / 2 and G + in the same manner as in the case of the field shown in FIG.
B / 2 + R / 2 signals are obtained. Then, in the same manner as in the case of the field shown in FIG. 6, the video signal is output from the output terminal 16. At this time, if a signal according to the NTSC system is output as the predetermined video signal, (RG) / 2,
The (B−G) / 2 signal is pseudo-color difference signal, and G +
The B / 2 + R / 2 signal can be used as the luminance signal, and the configuration of the encoder 15 becomes very simple.

8 and 9 are views showing a modification of the embodiment shown in FIG. The color filter array shown in FIG. 8 is almost the same as the color filter array shown in FIG. 1, and FIG. 9 shows the color filter array shown in FIG. In FIG. 9, if 16 pixels surrounded by a dotted line are used as a repeating unit, it becomes the array shown in FIG. 8, and eventually the color filter array of FIG. 1 and the color filter array of FIG. 8 are the same. I know there is. In addition to such a color filter array, there are 14 patterns, all of which are the same as the array of FIG. 1 considering the repetition.

10 and 11 are views showing another embodiment of the present invention. The color filter array shown in FIG. 10 is obtained by replacing the Ye filter and the Cy filter of the color filter array shown in FIG. The spectral transmission characteristics of each color filter are as shown in FIG. 2, and when sampling is performed for each color component as in FIG. 3, it is as shown in FIG. As is clear from comparison between FIG. 3 and FIG. 11, the R sampling pattern and the B sampling pattern are interchanged. Therefore, in the color filter array shown in FIG. 10, (fx, fy) =
There is an R-G component carrier at the position (π / 2, π), and a B-G component carrier at the position (fx, fy) = (π, π / 2). Then, in FIG. 5, assuming that the color filter array provided in the solid-state image sensor 2 is the color array shown in FIG. 10, the block 6 of the two-dimensional filter starts from (BG).
The / 2 signal is output, and the (R−G) / 2 signal is output from the block 9 of the two-dimensional filter.

Next, a case will be described in which the color filter array according to another embodiment of the present invention is applied to an image pickup apparatus in which a plurality of solid-state image pickup elements are arranged so as to be optically shifted.

FIG. 12 is a schematic block diagram of an image pickup apparatus using two solid-state image pickup elements. In FIG. 12, behind the lens 1, a half mirror 20 that divides the incident light that has passed through the lens 1 into two is provided. The incident light transmitted through the half mirror 20 is incident on the solid-state imaging device 22, while the incident light reflected by the half mirror 20 is further reflected by the mirror 21 and the solid-state imaging device 23.
Is incident on. That is, the half mirror 20 and the mirror
Due to 21, the same light image is incident on the two solid-state image pickup devices 22 and 23. The signal synthesis processing circuit 24 synthesizes the outputs of the two solid-state image pickup devices 22 and 23 and processes them into a video signal. The drive signal generator 25 includes two solid-state image pickup devices 22,2.
It generates a pulse that drives 3.

FIG. 13 is a diagram showing a positional relationship of light receiving pixels when the two solid-state image pickup elements shown in FIG. 12 are horizontally displaced.
FIG. 14 is a diagram showing two color filter arrays when the present invention is applied to the pixel arrangement of FIG. 13, and FIG. 15 is one of the color filter arrays shown in FIG. FIG. 16 is a diagram showing an arrangement for configuring, FIG. 16 is a diagram showing a positional relationship of light receiving pixels when two solid-state image pickup elements are vertically displaced, and FIG. 17 shows a pixel arrangement shown in FIG. It is a figure which shows the example to which this invention is applied.

When the positional relationship between the two solid-state image pickup devices 22 and 23 is relatively shifted in the horizontal direction by 1/2 of the pixel pitch Ph (hereinafter, referred to as horizontal pixel shift), the incident light image The light receiving pixels of the two solid-state image pickup devices 22 and 23 when viewed from the side are such that pixels of different solid-state image pickup devices are arranged in the horizontal direction as shown in FIG. 13 for each pixel.

In such a case, in order to apply the color filter array of the present invention shown in FIG. 1, the color filter array shown in FIG. 14 may be provided in each solid-state image pickup device. At this time,
Arrangement of color filters of the solid-state imaging device 22 shown in FIG. 14,
The arrangement of the color filters of the solid-state image pickup device 23 is only shifted by 2 pixels in the vertical direction, and the arrangement of the color filters in which these are repeatedly arranged is exactly the same. Therefore,
In the same process, the color filter of the solid-state image sensor 22 and the color filter of the solid-state image sensor 23 can be produced.

In addition, by using two solid-state image pickup devices 22 having the color filter array shown in FIG. 14 (a), the positional relationship between them is shifted in the horizontal direction by 1/2 of the horizontal pixel pitch, and is vertically changed in the vertical direction. By shifting the pixel pitch by twice, the arrangement of the color filters seen from the incident light image side becomes the same as the color filter arrangement shown in FIG. 1 as shown in FIG. In this case, the drive timings of the two solid-state image pickup elements are shifted by the amount shifted in the vertical direction, or the output signals of the solid-state image pickup element having the color filter array shown by the dotted line in FIG. 15 are shifted in the vertical direction. By delaying by the amount, signals corresponding to the color filters in the same row shown in FIG. 15 can be obtained at the same timing. As a result, it is not necessary to manufacture two types of solid-state image pickup elements, and there is an effect that the apparatus can be made inexpensive. This can be constructed in exactly the same manner by using two solid-state image pickup devices 23 having the color filter array shown in FIG. 14 (b).

When the positional relationship between the two solid-state image pickup devices 22 and 23 is relatively shifted in the vertical direction by 1/2 of the vertical pixel pitch, the two solid-state image pickups when viewed from the incident light image side. As for the light receiving pixels of the elements 22 and 23, the pixels of different solid-state image pickup elements are arranged for each pixel in the vertical direction as shown in FIG. In such a case, in order to apply the color filter array of the present invention shown in FIG. 1, the color filter array shown in FIG. 17 may be provided in each solid-state image pickup device. The arrangement of the two color filters shown in FIG. 17 is the same as the arrangement of the horizontal pixel shift color filters shown in FIG. 14, and the arrangement is exactly the same as the color filter arrangement in which the arrangement is repeated. The effect is that the color filters of the two solid-state image pickup devices 22 and 23 can be manufactured in the same process.

Further, by using two solid-state image pickup devices having one of the color filter arrays shown in FIG. 17, the positional relationship between them is shifted vertically by 1/2 of the vertical pixel pitch and horizontally in the horizontal direction. By shifting the pixel pitch by twice, the color filter array of the present invention shown in FIG. 1 can be constructed, and it is not necessary to manufacture two types of solid-state image pickup elements.
This has the effect of making the device inexpensive.

In the above description, one embodiment of the present invention shown in FIG. 1 is applied to an image pickup apparatus in which a plurality of fixed image pickup elements are arranged in a staggered manner, but another embodiment of the present invention shown in FIG. It is apparent that the same effects can be obtained even when the embodiment is applied, with the same configuration.

[Effects of the Invention] As described above, according to the present invention, the repeating unit of the arrangement of the color filters is 16 pixels of vertical 4 pixels and horizontal 4 pixels,
When the pixel position of the 16 pixels is Cxy; x, y = 1 to 4, C
_14, the first color filter is disposed in the _{C 22, C 33, C 41} , C 11, C
_A second color filter is arranged at ₂₃ , C ₃₂ , C ₄₄ , and C ₁₂ , C ₂₄ , C
_31, a third color filter disposed on the _{C 43, C 13, C 21} , C 34, C
_A fourth color filter is arranged at _42, and the spectral transmission characteristics of these first to fourth color filters are set to the output signal level of the pixel where each color filter is arranged for white light of a predetermined color temperature. Since both have the same characteristics,
Carriers are generated at wide intervals other than on the vertical and horizontal frequency axes, and the carriers disappear for achromatic light. As a result, it is possible to obtain an image pickup device with high resolution and less moire, and when outputting in the form of a signal of luminance and color difference, such as the NTSC system, there is also an effect that signal processing becomes very easy.

Further, when the present invention is applied to a solid-state image pickup device in which two solid-state image pickup devices are arranged so as to be offset from each other, the color filter arrays of the two solid-state image pickup devices are the same array, and the color filters can be made in the same process In addition, the device can be inexpensive because it can be configured by using two identical solid-state image pickup devices.

[Brief description of drawings]

FIG. 1 is a diagram showing an arrangement of 16 pixels which is a unit of arrangement of color filters in an embodiment of the present invention. FIG. 2 is a diagram showing the spectral transmission characteristics of the Mg, G, Cy and Ye filters used in the present invention. FIG. 3 is a diagram showing sampling by a color filter with a green light component, a red light component, and a blue light component. Fig. 4 shows the sampling of horizontal and vertical planes,
It is the figure represented by the two-dimensional frequency plane of a vertical direction. Fifth
FIG. 1 is a schematic block diagram showing an example of an image pickup device using a color filter array according to the present invention. 6 and 7
The figure is a view for explaining the operation of the image pickup apparatus shown in FIG. 8 and 9 are diagrams showing other examples of the color filter array shown in FIG. FIG. 10 is a diagram showing an example in which the Ye filter and the Cy filter of the color filter array shown in FIG. 1 are replaced. FIG. 11 is a diagram showing sampling for each color component. FIG. 12 is a schematic block diagram showing an image pickup apparatus in which two solid-state image pickup elements are arranged in a shifted manner. FIG. 13 is a diagram showing the positional relationship of the light receiving pixels when the two solid-state image pickup devices are horizontally displaced. 14th
The figure is a diagram showing two color filter arrays when the present invention is applied to the pixel arrangement shown in FIG. Figure 15 is number 14
It is a figure which shows the arrangement | positioning for comprising the arrangement | sequence of this invention with one color filter arrangement | sequence shown in the figure. FIG. 16 is a diagram showing the positional relationship of the light receiving pixels when the two solid-state image pickup devices are vertically displaced. FIG. 17 is a diagram showing an example in which the present invention is applied to the pixel arrangement shown in FIG. 18 and 19 are diagrams showing a conventional color filter array. In the figure, Mg is a magenta color transmission color filter (first color filter), G is a green transmission color filter (second color filter), and Cy is a cyan color transmission color filter (third and fourth colors). Filters) and Ye represent yellow-transmitting color filters (third and fourth color filters).

Claims (9)

[Claims] 1. A solid-state image pickup device in which a plurality of light-receiving elements, each of which constitutes one pixel in the horizontal and vertical directions, are arranged, and a solid-state image pickup device arranged in front of the solid-state image pickup device and having different spectral transmission characteristics. In a color solid-state imaging device including a mosaic color filter in which color filters of various types are arrayed in a fixed pattern at positions corresponding to the respective pixels, an array pattern of the mosaic color filter includes four pixels in a horizontal direction, 16 color filters of 4 pixels in the vertical direction are set as one unit, and the pixel position of this one unit is represented by Cxy; x, y = 1 to 4 (x indicates the horizontal direction, y indicates the vertical direction). At this time, the first color filter is arranged at C ₁₄ , C ₂₂ , C ₃₃ , and C _41, and the second color filter is arranged at C ₁₁ , C ₂₃ , C ₃₂ , and C ₄₄ , and C ₁₂ , C _24, C _31, to C ₄₃ arranged a third color _{filter, C 13, C 21, C} 34, the C ₄₂ fourth color filter Are arranged to form the mosaic color filter, and the spectral transmission characteristics of the first to fourth color filters are output signal levels of pixels in which the respective color filters are arranged for white light of a predetermined color temperature. The color solid-state image pickup device is characterized in that both have the same characteristics. 2. The first color filter is a magenta color light transmission filter, the second color filter is a green light transmission filter, the third color filter is a cyan color light transmission filter, and the fourth color filter is a cyan color light transmission filter. 2. The color solid-state image pickup device according to claim 1, wherein the color filter is a yellow light transmission filter. 3. When the output signals of the pixels in which the first to fourth color filters are arranged are S ₁ , S ₂ , S ₃ and S ₄ , respectively, the spectrum of the first to fourth color filters is determined. the transmission characteristics, for the green light component of the white light of a predetermined color temperature _{S 1, S 2, S 3} , S 4 of the ratio schematic 0: 1: 0.5: 0.5, the red light component of the white light The ratio of S ₁ , S ₂ , S ₃ , and S ₄ is about 0.5: 0: 0: 0.5, and for the blue light component of the white light, S ₁ , S ₂ , S ₃ , and S _{4 are} The color solid-state image pickup device according to claim 1, characterized in that the ratio is approximately 0.5: 0: 0.5: 0. 4. The first color filter is a magenta color light transmitting filter, the second color filter is a green light transmitting filter, the third color filter is a yellow light transmitting filter, and the fourth color filter is a yellow light transmitting filter. The color solid-state image pickup device according to claim 1, wherein the color filter is a cyan color light transmission filter. 5. When the output signals of the pixels in which the first to fourth color filters are arranged are S ₁ , S ₂ , S ₃ and S ₄ , respectively, the spectrum of the first to fourth color filters is determined. As for the transmission characteristic, the ratio of S ₁ , S ₂ , S ₃ , and S ₄ to the green component of white light of a predetermined color temperature is approximately 0: 1: 0.5: 0.5, and the red light component of the white light is On the other hand, the ratio of S ₁ , S ₂ , S ₃ , and S ₄ is approximately 0.5: 0: 0.5: 0, and for the blue light component of the white light, S ₁ , S ₂ , S ₃ , and S ₄ are The color solid-state imaging device according to claim 1, wherein the ratio is set to approximately 0.5: 0: 0: 0.5. 6. The solid-state image pickup device comprises first and second solid-state image pickup devices on which the same light image is incident, and the first and second solid-state image pickup devices are arranged for every two pixels in the horizontal direction, respectively. The color filters of the same color are arranged so as to repeat every 4 pixels in the vertical direction, and the pixel position of 8 pixels of 2 pixels in the horizontal direction and 4 pixels in the vertical direction, which is the unit of repetition, is Bxy; x = 1,2. , Y = 1 to 4, the pixel position B _{1 in} the first solid-state image sensor is
The same color filters as the pixel positions C ₁ y and C ₃ y are arranged at y and B ₂ y, respectively, and the pixel positions B ₁ y and
The same color filters as the pixel positions C ₂ y and C ₄ y are arranged at B ₂ y, respectively, and the first and second solid-state image pickup devices are horizontally moved to 1 /
The color solid-state imaging device according to claim 1, wherein the color solid-state imaging device is arranged so as to be relatively displaced by two pixel pitches. 7. The solid-state image pickup device is composed of first and second solid-state image pickup devices on which the same light image is incident, and the first and second solid-state image pickup devices are arranged every two pixels in a horizontal direction and vertically, respectively. The color filters of the same color are arranged to repeat every 4 pixels in the direction, and the pixel position of 8 pixels of 2 pixels in the horizontal direction and 4 pixels in the vertical direction, which is the unit of repetition, is Bxy; x = 1,2, When y = 1 to 4, the pixel positions C ₁ y, C ₃ y or C ₂ y, C ₄ y are respectively located at pixel positions B ₁ y, ₂ y in the first and second solid-state imaging devices.
Arrange the same color filter as either one of the
2. The color solid-state image pickup device according to claim 1, wherein the second solid-state image pickup device is arranged with a relative shift of 2 pixel pitch in the vertical direction and a 1/2 pixel pitch in the horizontal direction. apparatus. 8. The solid-state image pickup device comprises first and second solid-state image pickup devices on which the same light image is incident. Color filters of the same color are arranged to repeat every 2 pixels in the vertical direction, and the pixel position of 8 pixels of 4 pixels in the horizontal direction and 2 pixels in the vertical direction, which is the unit of repetition, is Bxy; x = 1 to 4 , Y = 1,2, in the first solid-state image sensor, the pixel position Bx
₁ and Bx ₂ are arranged with the same color filters as the pixel positions Cx ₁ and Cx ₃ , respectively, and the pixel positions Bx ₁ and Bx ₁ are arranged in the second solid-state image sensor.
The same color filters as the pixel positions Cx ₂ and Cx ₄ are arranged in Bx ₂ , respectively, and the first and second solid-state image pickup devices are vertically moved to 1 /
2. The color solid-state image pickup device according to claim 1, wherein the color solid-state image pickup device is arranged so as to be relatively offset by two pixel pitches. 9. The solid-state image pickup device is composed of first and second solid-state image pickup devices on which a light image of one image is incident, and the first and second solid-state image pickup devices have four horizontal pixels and four horizontal pixels, respectively. Color filters of the same color are arranged to repeat every 2 pixels in the vertical direction, and the pixel position of 8 pixels of 4 pixels in the horizontal direction and 2 pixels in the vertical direction, which is the unit of repetition, is Bxy; x = 1 to 4 , Y = 1,2, in the first and second solid-state image pickup devices, the pixel positions Cx ₁ , Cx ₃ or Cx are respectively assigned to the pixel positions Bx ₁ , Bx _2.
The same color filter as one of ₂ and Cx ₄ is arranged, and the first and second solid-state image pickup elements are relatively displaced by 1/2 pixel pitch in the vertical direction and 2 pixel pitch in the horizontal direction. The color solid-state image pickup device according to claim 1, wherein the color solid-state image pickup device is arranged.