JP2002209836A - Image processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize an image processor which can be used as either of an external TV camera using a CCD of a conventional interlace scanning system and an external TV camera using a CCD of a progressive system. SOLUTION: A CCU (image processor) 6 has a CCD discrimination part 10, a CCD driver 11, a TG 123, a video signal processing part 17, a control part 13 and an output conversion part 18. The part 17 has a progressive signal processing part, an interlace signal processing part, an input switching part and an output switching part. The control part 13 controls the outputting timing of a diving signal outputted from the driver 11 through the TG 12 corresponding to the kind of the CCD based on the discrimination result of the part 10 and controls the input switching part and the output switching part of the part 17 and an output conversion part 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus, and more particularly, to an image processing apparatus characterized by an image pickup control and signal processing section for picking up a subject image.

[0002]

2. Description of the Related Art In recent years, endoscope devices have been widely used in the medical and industrial fields. 2. Description of the Related Art Some endoscope apparatuses use an electronic endoscope provided with a solid-state imaging device such as a CCD (charge-coupled device) as an imaging unit at a distal end. The endoscope apparatus displays an endoscope image captured by an imaging unit on a monitor. The electronic endoscope includes a simultaneous type using a CCD in which a color chip filter is arranged on an imaging surface and a CCD side-by-side type without a color chip filter as an imaging method.

In order to connect the above-mentioned plurality of types of electronic endoscopes to a camera control unit (CCU) as a common signal processing device, it is necessary to use a simultaneous type, a frame sequential type, a color chip filter arrangement, etc. A plurality of signal processing circuits for performing signal processing for the CCD are required.

[0004] An image processing apparatus used in such an endoscope apparatus uses, for example, a signal indicating the type of an electronic endoscope as described in JP-A-63-220836.
Detected by the CU, the CCD driving circuit and the signal processing circuit provided in the CCU are switched according to the type of the detected electronic endoscope, whereby the CCD corresponding to the type of the electronic endoscope is changed.
The one that enables the driving and signal processing has been proposed.

On the other hand, for example, Japanese Patent Laid-Open No.
The image processing apparatus described in Japanese Patent Application Laid-Open No. 277065 and Japanese Patent Application Laid-Open No.
A (; Field Programmable Gate Arrays LCA (
logic cell Arrays) is configured by a type of FPGA), and the circuit configuration is changed according to the type of electronic endoscope.

In addition, an endoscope apparatus used in an endoscopic surgical operation is a rigid endoscope, which is an optical endoscope, in which an external television camera provided with an image pickup means is attached to an eyepiece. . This external camera also has a single-chip type using a CCD using a color chip filter, and R, G,
There is a three-plate type in which B light is imaged by three CCDs without using a color chip filter. In the single-panel camera, similarly to the endoscope, the number of pixels and the color chip filter array C
There is a CD. In recent years, a progressive scanning type (all-pixel reading type or sequential scanning type) CCD has been developed and used in digital still cameras and the like.

[0007]

The above progressive C
CD is a conventional interlaced scanning (interlaced scanning) C
The CD differs from the CD not only in the number of pixels and the arrangement of color chip filters, but also in the reading method. For this reason, an external camera using the above-mentioned CCD cannot be shared with a CCU (image processing device) used for a conventional interless scanning (interlaced scanning) CCD.

The present invention has been made in view of these circumstances. An external TV camera using a conventional interless scanning CCD and a progressive CCD have been developed.
It is an object of the present invention to provide an image processing apparatus that can be used both with an external TV camera using a camera.

[0009]

In order to achieve the above object, an image processing apparatus according to a first aspect of the present invention drives a progressive CCD driven by progressive scanning and an interlaced CCD driven by interless scanning. Signal processing means for performing signal processing on image signals from the progressive CCD and the interlaced CCD driven by the driving means, and responding to image signals from the progressive CCD or the interlaced CCD. Switching means for switching to a signal processing unit;
Information relating to the type of CCD to be connected is input, and a discriminating means for discriminating the type of CCD based on this information, and output from the driving means in accordance with the type of CCD based on the discrimination result of the discriminating means. Control means for controlling the output timing of the drive signal and controlling the switching means. According to a second aspect of the present invention, in the image processing apparatus according to the first aspect, the interlaced scanning signal or the progressive scanning signal output from the signal processing unit is controlled by the control unit. Output means for outputting both the interlaced scanning signal and the progressive scanning signal converted by the converting means, or switching to and outputting either one of them. It is characterized by having been provided. With this configuration, an image processing apparatus that can use both an external TV camera using a conventional interlace scanning CCD and an external TV camera using a progressive CCD is realized.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment will be described. 1 to 6 relate to an embodiment of the present invention, FIG. 1 is an overall configuration diagram showing an overall configuration of an endoscope apparatus provided with the embodiment of the present invention, and FIG. 2 is a TV camera of FIG. And a circuit block diagram showing the internal configuration of the CCU,
3 is a circuit block diagram showing the internal configuration of the video signal processing unit in FIG. 2, FIG. 4 is a circuit block diagram showing the internal configuration of the output conversion unit in FIG. 2, and FIG. 5 is a complementary color filter used in the CCD in FIG. FIG. 5A is a schematic diagram showing an interlace C
A complementary color filter used for a CD, FIG. 5B shows a complementary color filter used for a progressive CCD, and FIG. 6 shows a modified example in which the video signal processing unit in FIG. 3 is configured by an FPGA (digital image processing circuit).

As shown in FIG. 1, the endoscope apparatus 1 has a rigid endoscope which inserts an insertion portion 2a into a body cavity and transmits an image of a subject such as an affected part to an eyepiece 2c provided above the operation portion 2b. (Hereinafter simply referred to as an endoscope) 2, a light source device 3 for supplying illumination light to the endoscope 2, and a detachably attachable to an eyepiece 2c of the endoscope 2. An external TV camera (hereinafter, referred to as a TV camera) 4 having a built-in interless CCD 4a of an interless scanning system for picking up a subject image transmitted from the eyepiece 2c, and the TV camera 4 and the endoscope selectively. 2 can be detachably attached to the eyepiece 2c,
A progressive CCD 5a of a progressive system for capturing a subject image transmitted from an eyepiece 2c of the endoscope 2
, A TV camera 5 with a built-in
CCU (camera control unit) which is an image processing device that performs signal processing on an image pickup signal obtained by the V camera 5
6 and a display monitor (hereinafter referred to as a monitor) 7 for displaying an endoscopic image based on the video signal processed by the CCU 6. Incidentally, the TV camera 4 or the TV camera 5 is connected to the CCU 6 by a camera cable 4b and a camera cable 5b, respectively.
The CCU 6 and the light source device 3 are connected by a cable 3b. The light source device 3 includes the endoscope 2
CCU6 so that the amount of illumination light supplied to the
Is controlled by

The endoscope 2 is configured such that a light guide cable 3a extending from the side of the operation section 2b is detachably connected to the light source device 3 so that illumination light is supplied from the light source device 3. Has become. Illumination light supplied from the light source device 3 is transmitted to the distal end side of the insertion section of the endoscope 2, and illuminates a subject from an emission surface thereof through an illumination window.

The illuminated subject image is taken in through an observation window (not shown) provided on the distal end face of the insertion section of the endoscope 2 and is brought into contact with the light by a light guide means (not shown) such as a relay lens. The information is transmitted to the eye part 2c. The subject image can be observed through an eyepiece (not shown) provided in the eyepiece 2c.

The subject image transmitted from the eyepiece 2c of the endoscope 2 is selectively connected to either the TV camera 4 or the TV camera 5 to the eyepiece 2c of the endoscope 2. By being attached, an image is formed on the imaging surface of the interlaced CCD 4a of the TV camera 4 or the progressive CCD 5a of the TV camera 5, and an image is taken. For example, the eyepiece 2c of the endoscope 2 has the T
When the V camera 4 is detachably attached and the camera cable 4b of the TV camera 4 is detachably connected to the CCU 6, the optical image of the subject transmitted to the eyepiece 2c of the endoscope 2 is transmitted to the TV camera 4. 4 said interless CC
The image is captured by D4a.

As shown in FIG. 2, each of the TV camera 4 and the TV camera 5 has a CCD identification information section 7, and each of these CCD identification information sections 7 identifies a type of a built-in CCD. The information for is stored. More specifically, the TV camera 5 stores information indicating that the built-in CCD is a progressive CCD 5a in the CCD identification information section 7a. On the other hand, the TV camera 4 stores information indicating that the built-in CCD is an interlace CCD 4a in the CCD identification information section 7b.

The CCU 6 is connected to either the TV camera 4 or the TV camera 5 selectively, so that the CC of the TV camera 4 or the TV camera 5 is connected to the CCU 6.
It has a CCD discriminating unit 10 for discriminating the type of CCD based on information output from the D identification information unit 7.

Interless CCD 4 of the TV camera 4
a or the progressive CCD 5a of the TV camera 5
Is driven and controlled by the CCD driver 11 in the CCU 6. The CCD driver 11 is driven by a CCD drive signal from a TG (timing generator) 12. The TG 12 is controlled by a control signal from the control unit 13. The TG 12 outputs various timing signals.

The control unit 13 includes the CCD discrimination unit 10
TG1 according to the type of CCD based on the determination result of
2, the output timing of a drive signal output from the CCD driver 11 is controlled, and a switching means provided in a video signal processing unit 17 described later is controlled.

Then, the interlace CCD 4a of the TV camera 4 driven at a predetermined timing or the T CCD
The progressive CCD 5a of the V camera 5 photoelectrically converts the subject image formed on the imaging surface and accumulates electric charges. The charge accumulated in the interlace CCD 4a or the progressive CCD 5a is read out as an image signal by the CCD driver 11 in the CCU 6,
It is transmitted into the CCU 6.

The imaging signal transmitted into the CCU 6 is
The signal is amplified by a predetermined gain to compensate for the loss caused by the transmission by the preamplifier 14, correlated double-sampled by a CDS circuit 15 provided at a stage subsequent to the preamplifier 14, and provided at a stage subsequent to the CDS circuit 15. The A / D converter 16 converts the analog signal into a digital signal, and inputs the digital signal to a video signal processing unit 17 provided at a subsequent stage of the A / D converter 16. The CDS circuit 15, the A / D converter 16, and the video signal processing unit 17 are controlled by various timing signals from the TG 12.

The digital signal input to the video signal processing unit 17 is subjected to video signal processing, which will be described later, according to the type of CCD in the video signal processing unit 17, and is provided at a subsequent stage of the video signal processing unit 17. Is input to the output converter 18. The video signal processing unit 17 includes two signal processing units that process image signals from the interlaced CCD 4a and the progressive CCD 5a as described later, and the two signal processing units transmit image signals to the two CCDs in accordance with the type of CCD. It has switching means for switching.

The digital signal input to the output converter 18 is subjected to image processing, such as enlargement and reduction, which will be described later, and is passed through D / A converters 19a and 19b provided at the subsequent stage of the output converter 18. Then, it is converted into a TV signal and output to the monitor 7. The output converter 18 is connected to a digital image recording device (not shown) via a digital interface (digital I / F) 20.

Next, referring to FIG.
7 will be described. The video signal processing unit 17 includes:
According to the timing signal from the TG 12, the A / D
Interless CCD 4a input from converter 16
Alternatively, an input switching unit 21 for switching a digital imaging signal from the progressive CCD 5a, a progressive signal processing unit 22 for processing the digital imaging signal from the progressive CCD 5a to a video signal by switching the input switching unit 21, and the input switching unit 21 The interlace signal processing unit 23 which processes the digital image pickup signal from the interlace CCD 4a to a video signal by switching
And an output switching unit 24 that switches the output of the interlace signal processing unit 23 and the output of the progressive signal processing unit 22 according to the timing signal from the TG 12. These input switching section 21, interlace signal processing section 23, progressive signal processing section 22, output switching section 24
Is operated by a timing signal from the TG 12 under the control of the control unit 13.

The interlace signal processing unit 23 is provided with an interlace CC input from the A / D converter 16.
A luminance signal and a color difference signal are generated based on a digital imaging signal by the interlaced scanning method from D4a based on a calculation formula described later, and signal processing such as complementation is performed to generate an interlaced scanning digital video signal. ing.

On the other hand, the progressive signal processing unit 22
Generates a luminance signal and a color-difference signal from a digital imaging signal of the progressive scanning method from the progressive CCD 5a input from the A / D converter 16 based on a later-described calculation formula, and performs signal processing such as complementation.
A digital video signal based on a progressive scanning method is generated.

Next, the internal configuration of the output converter 18 will be described with reference to FIG. The output conversion unit 18 writes and temporarily stores a digital video signal according to the interlaced scanning method or the progressive scanning method output from the video signal processing unit 17, and writes and reads the image memory 31. , An image processing unit 33 for performing image processing on the digital video signal read from the image memory 31, and a digital video signal read from the image memory 31 and image processing performed by the image processing unit 33. And a γ-enhancement unit 35 (35a, 35b, 35c) for performing γ correction and contour enhancement processing on the signal distributed by the switch unit 34. Note that these memory control unit 32, image processing unit 33, switch unit 34, γ-enhance 35 (35
a to 35) are controlled by the control unit 13.

The image processing unit 33 performs image processing such as enlargement, reduction, interpolation, and format conversion as conversion means, for example, to convert a digital video signal in a video signal format of 480i in an interlace scanning system into a video signal format. Converts to a digital video signal by a progressive scanning method such as 480p, 720p, or 1080p. Further, the image processing unit 33 converts a digital video signal having a video signal format of 720p by a progressive scanning method into a video signal format of 1080p, for example.
i is converted into a digital video signal by an interlaced scanning method. In addition, video signal format 4
80i or 480p has 480 effective scanning lines (525I or 525P scanning lines), and the video signal format 720p (750P scanning lines) has 72 effective scanning lines.
0, video signal format 1080i or 10
80p has 1080 effective scanning lines (1125 scanning lines).
I).

The CC of the embodiment configured as described above is
The operation of U6 (image processing device) will be described. First,
The case where the TV camera 4 having the interlace CCD 4a is used will be described. TV on the eyepiece 2c of the endoscope 2
The camera 4 is detachably attached, and the camera cable 4b of the TV camera 4 is detachably connected to the CCU 6. Then, the information of the interlace CCD 4a as the information on the type of the connected CCD is stored in the CC of the TV camera 4.
It is transmitted from the D identification information section 7b to the CCD determination section 10 in the CCU 6.

Receiving this information, the CCD discriminating section 10 discriminates that the CCD of the connected TV camera 4 is an interless CCD 4a, which is an interless scanning CCD, and controls the discrimination result. Transmit to the unit 13.

The control unit 13 controls the TG 12 in accordance with the interlace CCD 4a based on the discrimination result transmitted from the CCD discrimination unit 10, controls the output timing of the drive signal output from the CCD driver 11, and The input switching unit 19 of the video signal processing unit 17 switches so that the digital image pickup signal by the interlace scanning method from the A / D converter 16 is input to the interlace signal processing unit 23. It is controlled to be operable. At this time, the control unit 13
Alternatively, the power supply to the progressive signal processing unit 22 may be stopped to disable the operation. Further, a power saving function or the like may be provided for the progressive signal processing unit 22, and the power saving function or the like may be turned on by the control unit 13.

The interlace CCD 4a driven by the driving signal output from the CCD driver 11 photoelectrically converts the optical image of the subject transmitted from the eyepiece 2c of the endoscope 2 formed on the imaging surface. And accumulate charge. The charges accumulated in the interlace CCD 4a are read out by the CCD driver 11 as an image signal by an interlace scanning method and transmitted to the CCU 6. The transmitted image signal according to the interlaced scanning method is input to the video signal processing unit 17 via the preamplifier 14, the CDS circuit 15, and the A / D converter 16 as described above.

The digital image pickup signal by the interlaced scanning method input to the video signal processing section 17 is input to the interlace signal processing section 23 by the input switching section 19.
Here, for example, FIG.
A complementary color filter as shown in (a) is provided on the imaging surface. The complementary color filters are four color chip filters of cyan (Cy), magenta (Mg), yellow (Ye), and green (G). In the present embodiment,
Reading is performed in a state where charges are coupled as in L1 + L2, L3 + L4 in odd fields.

In the case of L1 + L2, the Y signal (luminance signal) is obtained by adding adjacent pixels, and Y = {G + Cy) + (Mg + Ye) * 1/2 = 1/2 {2B + 3G + 2R} (1) The signal is subtracted at adjacent pixels, and RY = {(Mg + Ye)} − (G + Cy)} = 2R−G (2)

On the other hand, in the case of L3 + L4, similarly,
Subtraction Y = {(G + YE) + (Mg + Cy)} * 1/2 = 1/2 {2B + 3G + 2R} (3) BY = {(Mg + Cy)-(G + Ye)} = 2B-G・ ・ (4)

In the even field, L2 + L3,
Are read out in combination with L4 + L5..., And the Y signal (luminance signal) and the color difference signal are calculated in the same manner as in the odd field.

The interlace signal processing section 23 generates a Y signal and a color difference signal based on the above formula, and performs signal processing such as complementation to generate a video signal. Then, the video signal generated by the interlace signal processing unit 23 is written to the image memory 31 in the output
And input to the switch unit 34.

As described above, the image processing section 33 converts the interlaced scanning digital video signal converted into image data by the video signal processing section 17 into a progressive scanning digital video signal. The image processing unit 33 complements the pixel data in the vertical and horizontal directions to the digital video signal of the interlaced scanning system, and converts the digital video signal of the interlaced scanning system of 480i into a video signal format of 480p, 720p, 1080p, or the like. Is converted into a digital video signal by the progressive scanning method.

The digital video signal converted into the progressive scanning format by the image processing unit 33 and the digital video signal read from the image memory 31 are distributed to the γ / enhancement units 35a, 35b and 35c by the switch unit 34, The signals are output to the / A converters 14a and 14b and the digital interface unit 15.

A switch (not shown) determines whether the output by the progressive scanning method is 480p, 720p or 1080p, which signal is output to each of the D / A converters 19a and 19b and the digital interface unit 15. Alternatively, it is determined on the menu screen, and is set and switched under the control of the control unit 13.
The above settings are stored in a non-illustrated nonvolatile memory or the like as parameters.

Next, the case where the TV camera 5 having the built-in progressive CCD 5a is used will be described. The TV camera 5 is removably attached to the eyepiece 2c of the endoscope 2 in the same manner as the TV camera 4 described above, and the camera cable 5b of the TV camera 5 is removably connected to the CCU 6 to be connected. Information on the progressive CCD 5a is transmitted from the CCD identification information section 7a of the TV camera 5 to the CCD determination section 10 in the CCU 6 as information on the type of CCD. The CCD discriminating unit 10 discriminates that the CCD of the connected TV camera 5 is a progressive CCD 5a, which is a progressive scanning CCD, and transmits the discrimination result to the control unit 13.

The control unit 13 controls the TG 12 according to the progressive CCD 5a based on the determination result transmitted from the CCD determination unit 10, controls the output timing of the drive signal output from the CCD driver 11, and
The input switching unit 19 of the video signal processing unit 17 switches so that the digital image pickup signal by the progressive scanning method from the A / D converter 16 is input to the progressive signal processing unit 22, and the progressive signal processing unit 2
2 is controlled to be operable. At this time, the control unit 13 may stop the power supply to the interlace signal processing unit 23 to make it inoperable, similarly to the above-described interlace scanning method, or may disable the power supply function. May be turned on by the control unit 13.

The progressive CCD 5a driven by the drive signal output from the CCD driver 11 reads out an image pickup signal by a progressive scanning method obtained by photoelectrically converting an optical image of a subject by the CCD driver 11, and
It is transmitted to the CCU 6. The transmitted image signal by the progressive scanning method is transmitted to the preamplifier 1 as described above.
4. The signal is input to the video signal processing unit 17 via the CDS circuit 15 and the A / D converter 16.

The digital image pickup signal by the progressive scanning method input to the video signal processing section 17 is input to the progressive signal processing section 22 by the input switching section 19. Here, in the progressive CCD 5a, for example, a complementary color filter as shown in FIG. 5B is provided on the imaging surface. This complementary color filter is a color chip filter having a Bayer array of three colors of red (R), green (G), and blue (B) (primary color G checkerboard R / B line sequential).

In this embodiment, (L1, L2),
(L2, L3), etc., the combination of two adjacent lines
Electric charges are read from four adjacent pixels, and a Y signal (luminance signal) and a color difference signal are calculated based on the following equations (5) to (7).

Y == １ ／ {2B + 3G + 2R} (5) R−Y = 2R−G (6) BY = 2B−G (7) The progressive signal processing unit 22 Based on the above formula, a Y signal and a color difference signal are generated, and signal processing such as complementation is performed to generate a video signal. Then, the video signal generated by the progressive signal processing unit 22 is written to the image memory 31 in the output conversion unit 18 and input to the image processing unit 33 and the switch unit 34.

As described above, the image processing section 33 converts the progressive scanning digital video signal converted into image data by the video signal processing section 17 into an interless scanning digital video signal. The image processing section 33 thins out the pixel data in the vertical and horizontal directions from the digital video signal of the progressive scanning method, performs complementation, etc.
An 80p progressive scan digital video signal is converted to an interlaced digital video signal having a video signal format of 480i.

Then, the digital video signal converted to the interlaced scanning system by the image processing section 33 and the image memory 3
The digital video signal read from 1 is transmitted to the switch unit 3
At 4, the signals are distributed to the γ-enhancement units 35 a, 35 b, and 35 c and output to the D / A converters 14 a and 14 b and the digital interface unit 15.

Here, a switch (not shown) determines whether the output by the progressive scanning method is 480p, 720p or 1080p, and which signal is output to each of the D / A converters 19a and 19b and the digital interface unit 15. Alternatively, it is determined on the menu screen, and is set and switched under the control of the control unit 13.
The above settings are stored in a non-illustrated nonvolatile memory or the like as parameters.

As a result, signal processing can be performed by a common CCU with a camera head using a CCD of either the interless scanning method or the progressive scanning method. In addition, even if the display monitor 7 of either scanning method is connected, it is possible to display images of either of these scanning methods.

As shown in FIG. 6, the video signal processing section 17 comprises an FPGA (; Field Programmable Gate Arrays).
Note that an LCA (logic cell array) is a type of FPGA 41, and the circuit configuration may be reconstructed from the data in the circuit data ROM 42 in accordance with a signal from the CCD determination unit 10. Although not shown, R, G, and B plane-sequential light sources may be used as the light source of the light source device, and a program for plane-sequential signal processing may be constructed in the FPGA to support plane-sequential imaging.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention.

[Appendix] (Appendix 1) Driving means for driving a progressive CCD driven by progressive scanning and an interlaced CCD driven by interlaced scanning, and the progressive CCD and the driving means driven by the driving means Switching means for switching to the progressive CCD or a signal processing unit corresponding to the imaging signal from the interlaced CCD, comprising: signal processing means for performing signal processing on an imaging signal from the interlaced CCD; Is inputted, and a discriminating means for discriminating the type of the CCD based on this information, and an output timing of the drive signal outputted from the driving means is controlled in accordance with the type of the CCD based on the discrimination result of the discriminating means. And control means for controlling the switching means. The image processing apparatus according to symptoms.

(Additional Item 2) A conversion means for converting the interlace scanning signal or the progressive scanning signal output from the signal processing means into a progressive scanning signal or an interless scanning signal, respectively, under the control of the control means. And output means for outputting both the interlaced scanning signal and the progressive scanning signal converted by the converting means, or switching to and outputting either of them. The image processing apparatus according to any one of the preceding claims.

[0054]

As described above, according to the present invention, an external T using a conventional interless scanning CCD is used.
An image processing apparatus that can use both a V camera and an external TV camera using a progressive CCD can be realized.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an overall configuration of an endoscope apparatus provided with an embodiment of the present invention.

FIG. 2 is a circuit block diagram showing an internal configuration of the TV camera and the CCU of FIG. 1;

FIG. 3 is a circuit block diagram illustrating an internal configuration of a video signal processing unit in FIG. 2;

FIG. 4 is a circuit block diagram showing an internal configuration of an output conversion unit in FIG. 2;

FIG. 5 is a schematic diagram showing a complementary color filter used in the CCD of FIG. 2;

FIG. 6 is a modification example in which the video signal processing unit in FIG. 3 is configured by an FPGA (digital image processing circuit).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Endoscope apparatus 2 ... Endoscope 4,5 ... TV camera (external TV camera) 4a ... Interless CCD 5a ... Progressive CCD 6 ... CCU (Image processing apparatus) 7a, 7b ... CCD identification information part 10 ... CCD discriminating unit 11 ... CCD driver 12 ... TG (timing generator) 13 ... Control unit 17 ... Video signal processing unit 18 ... Output conversion unit 21 ... Input switching unit 22 ... Progressive signal processing unit 23 ... Interlace signal processing unit 24 ... Output Switching unit 33 ... Image processing unit

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 7/18 H04N 7/18 M (72) Inventor Akihiko Mochida 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Inventor Shinji Yamashita 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Ken Sudo 2-43-2, Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Kazunori Segawa 2-43-2 Hatagaya, Shibuya-ku, Tokyo F-term within Olympus Optical Co., Ltd. (reference) 2H040 GA01 GA11 4C061 AA00 AA29 BB00 CC06 DD01 FF02 JJ18 LL01 MM03 MM04 MM05 MM09 NN01 SS03 5C022 AA09 AC42 AC69 CA00 5C054 CC07 FF02 HA12

Claims (2)

[Claims] 1. A driving unit for driving a progressive CCD driven by progressive scanning and an interlaced CCD driven by interlaced scanning, and imaging from the progressive CCD and interlaced CCD driven by the driving unit. Signal processing means for performing signal processing on the signal, wherein the progressive CCD or the interless CCD is provided.
Switching means for switching to a signal processing unit in accordance with an imaging signal from the apparatus; information on the type of CCD to be connected; and discrimination means for discriminating the type of CCD based on this information. An image processing apparatus comprising: a control unit that controls output timing of a drive signal output from the drive unit and controls the switching unit based on a type of CCD. 2. A conversion means for converting the interlaced scanning signal or the progressive scanning signal output from the signal processing means into a progressive scanning signal or an interless scanning signal, respectively, under the control of the control means. 2. An image processing apparatus according to claim 1, further comprising output means for outputting both the interlaced scanning signal and the progressive scanning signal converted by the means, or for switching to and outputting either of them. apparatus.