Color solid state image pick-up device

Claim 2

An image pick-up device, comprising: (a) an image pick-up element for transducing an optical picture image into an image signal having horizontal scanning line signals, said image pick-up element having a front face; (b) filter means, at the front face of said image pick-up element, having a plurality of color filters; (c) first operation means for processing three of said horizontal scanning line signals of the image signal for forming a signal relating to color components of said image signal; (d) second operation means for processing said three horizontal scanning line signals of the image signal for forming a signal relating to a brightness of said image signal; and (e) means for forming mixed color image signals using at least an output of said first and second operation means.

Claim 3

An image pick-up device according to claim 1, wherein said filter means has repeated patterns of predefined colors in the horizontal direction and in the vertical direction.

Claim 4

An image pick-up device according to claim 1, wherein said first operation means includes a subtraction circuit.

Claim 5

An image pick-up device according to claim 1, wherein said second operation means includes an addition circuit for adding the three horizontal scanning line signals at a prescribed ratio.

Claim 6

An image pick-up device according to claim 1, further comprising edge emphasizing means for emphasizing edges of an image formed by the brightness related signal.

Claim 7

An image pick-up device according to claim 5, wherein said edge emphasizing means emphasizes vertical edge components of the brightness related signal formed image.

Claim 8

An image pick-up device according to claim 5, wherein said edge emphasizing means is of a secondary differentiated type.

Claim 9

An image pick-up device according to claim 7, wherein said edge emphasizing means includes third operation means for processing said brightness related signal and one of said three horizontal scanning line signals.

Claim 10

An image pick-up device according to claim 8, wherein said third operation means includes subtraction means.

Claim 11

An image pick-up device according to claim 8, further comprising means for adding an output of said third operation means to said brightness related signal.

Claim 12

An image pick-up device according to claim 5, wherein said second operation means includes means for separating high frequency band components and low frequency band components of the brightness related signal.

Claim 13

An image pick-up device according to claim 5, wherein said first operation means has at least two operation states and includes changeover means for changing the operation state of said first operation means for every horizontal line scanning signal period.

Claim 14

An image pick-up device according to claim 1, wherein said first operation means includes means for forming an edge emphasizing signal.

Claim 15

An image pick-up device, comprising: (a) an image pick-up element for transducing an optical picture image into an image signal having horizontal scanning line signal, said image pick-up element having a front face; (b) filter means, at the front face of said image pick-up element, having a plurality of color filters; (c) operation means for processing three of said horizontal scanning line signals of the image signal for forming a signal relating to a brightness of said image signal; and (d) edge emphasizing means for emphasizing vertical edge components of of an image formed by said brightness related signal.

Claim 16

An image pick-up device, comprising: (a) an image pick-up element for transducing an optical picture image into an image signal having horizontal scanning line signal, said image pick-up element having a front face; (b) filter means, at the front face of said image pick-up element, having a plurality of color filters; (c) operation means for processing three of said horizontal scanning line signals of the image signal for forming a signal relating to a brightness of said image signal; and (d) edge emphasizing means for emphasizing vertical edge components of of an image formed by said brightness related signal.

Claim 17

An image pick-up device according to claim 14, wherein said filter means has repeated patterns of predefined colors a the horizontal direction and in a vertical direction.

Claim 18

An image pick-up device according to claim 14, wherein said operation means includes an addition circuit for adding the three horizontal scanning line signals with a prescribed ratio.

Claim 19

An image pick-up device according to claim 14, wherein said edge emphasizing means is of a secondary differentiated type.

Claim 20

An image pick-up device according to claim 17, wherein said edge emphasizing means includes further operation means for processing said brightness related signal and one of said three horizontal scanning line signals.

Claim 21

An image pick-up device according to claim 18, wherein said further operation means includes subtraction means.

Claim 22

An image pick-up device according to claim 18, further comprising means for adding an output of said further operation means to said brightness related signal.

Claim 23

An image pick-up device according to claim 14, further comprising: color component forming means to process the three horizontal scanning line signals of the image pick-up element for forming signals relating to color components of said image signal.

Claim 24

An image pick-up device according to claim 21, wherein said color component forming means has at least two processing states and includes changeover means for changing the processing state for every horizontal scanning line signal period.

Claim 25

An image pick-up device according to claim 14, wherein said image pick-up element is solid state image pick-up element comprising a plurality of picture elements.

Claim 26

A color image pick-up device, comprising: (a) a solid state image pick-up element which contains a plurality of picture elements arranged in rows and columns for transducing an optical image into an electrical signal; (b) color separating optical means for guiding a predefined color of light impinging said pick-up device to each one of said picture elements; (c) image pick-up element driving means for sequentially reading out signals at a predefined row of picture elements of the solid state image pick-up element; (d) color component signal forming means for forming a signal relating to a color component of said electrical signal out of three horizontal scanning line signals in said electrical signal which have been read out by said image pick-up element driving means; (e) brightness component signal forming means for forming a signal relating to a brightness component out of said three horizontal scanning line signals which have been read out by the image pick-up element driving means; and (f) mixed image signal forming means for forming a mixed image signal at least out of an output of said color component signal forming means and an output of the brightness component signal forming means.

Claim 27

A color image pick-up device, comprising: (a) a solid state image pick-up element which contains a plurality of picture elements arranged in rows and columns for transducing an optical image into an electrical signal; (b) color separating optical means for guiding a predefined color of light impinging said pick-up device to each one of said picture elements; (c) image pick-up element driving means for sequentially reading out signals at a predefined row of picture elements of the solid state image pick-up element; (d) color component signal forming means for forming a signal relating to a color component of said electrical signal out of three horizontal scanning line signals in said electrical signal which have been read out by said image pick-up element driving means; (e) brightness component signal forming means for forming a signal relating to a brightness component out of said three horizontal scanning line signals which have been read out by the image pick-up element driving means; and (f) mixed image signal forming means for forming a mixed image signal at least out of an output of said color component signal forming means and an output of the brightness component signal forming means.

Claim 28

An image pick-up device, comprising: (a) an image pick-up element for transducing an optical picture image into an image signal; (b) filter means provided at a front face of said image pick-up element and consisting of a plurality of color filters; (c) brightness signal forming means to operate with three horizontal scanning line signals of the image signal formed by the image pick-up element for, respectively, forming a low band brightness signal and a high band brightness signal; (d) image signal forming means for forming image signals at least out of said low band brightness signal and said high band brightness signal.

Claim 29

An image pick-up device, comprising: (a) an image pick-up element for transducing an optical picture image into an image signal; (b) filter means provided at a front face of said image pick-up element and consisting of a plurality of color filters; (c) brightness signal forming means to operate with three horizontal scanning line signals of the image signal formed by the image pick-up element for, respectively, forming a low band brightness signal and a high band brightness signal; (d) image signal forming means for forming image signals at least out of said low band brightness signal and said high band brightness signal.

Claim 30

An image pick-up device, comprising: (a) an image pick-up element for transducing an optical picture image into an image signal said element having a front face; (b) filter means at the front face of said image pick-up element and having a plurality of color filters; (c) first operation means to operate with three horizontal scanning line signals of the image pick-up element for forming signals relating to color components; (d) detection means for detecting a contour signal out of an output of said image pick-up element; and (e) control means for controlling a quantity of signals relating to the color components formed by said first operation means according to an output of said detection means.

Claim 31

An image pick-up device, comprising: (a) an image pick-up element for transducing an optical picture image into an image signal said element having a front face; (b) filter means at the front face of said image pick-up element and having a plurality of color filters; (c) first operation means to operate with three horizontal scanning line signals of the image pick-up element for forming signals relating to color components; (d) detection means for detecting a contour signal out of an output of said image pick-up element; and (e) control means for controlling a quantity of signals relating to the color components formed by said first operation means according to an output of said detection means.

Claim 32

An image pick-up device according to claim 26, wherein said detection means detects a vertical contour signal.

Claim 33

An image pick-up device according to claim 26, wherein said detection means detects a quantity of a low frequency band component of the signal relating to a color component which is formed by the first operation means.