CN114923670B - A detection device for an endoscope camera system - Google Patents

Abstract

The invention discloses a detection device of an endoscope camera system, which comprises a mounting seat, a testing assembly and an image acquisition assembly, wherein the mounting seat is arranged in a left-right extending way; the test assembly comprises a standard lamp box, a transmission lamp box and a camera, wherein the standard lamp box is fixedly arranged on the mounting seat, the transmission lamp box and the camera are respectively positioned at the left side and the right side of the standard lamp box and can be movably arranged along the left and the right directions so as to be close to or far away from the standard lamp box, the standard lamp box is provided with a through hole extending along the left and the right directions, one side of the transmission lamp box, which is close to the standard lamp box, is provided with a test target, and the test target is correspondingly arranged with the through hole so as to be used for the camera to collect images of the test target; the image acquisition component is used for acquiring an image of the camera. According to the detection device of the endoscope camera system, provided by the invention, the corresponding test targets are replaced, and the distance between the camera lens and the test targets is adjusted, so that the detection of multiple performances of the camera is realized, the detection efficiency is improved, and the equipment investment cost of the endoscope camera system detection is reduced.

Description

A detection device for an endoscope camera system

Technical Field

The present invention relates to the technical field of endoscope detection, and in particular to a detection device of an endoscope camera system.

Background technique

As an important tool for minimally invasive surgery, endoscopes can enter the human body cavity and transmit the images taken inside the body to the screen in real time for observation by the surgeon or the doctor. Due to the complex internal environment of the human body, the imaging quality of the camera system is required to be high. The imaging quality of the camera system directly affects the doctor's observation and judgment. Therefore, it is of great clinical significance to test the imaging quality of the endoscope camera system. According to the camera system standard of the endoscope function supply device for medical endoscopes, it is necessary to test the imaging performance of the endoscope, namely the brightness response characteristics, signal-to-noise ratio, spatial frequency response, and static image tolerance. At present, the existing endoscope camera system detection device can only realize the single performance detection of the endoscope camera system, and cannot meet the needs of multiple performance detection of the endoscope camera system.

Summary of the invention

The main purpose of the present invention is to provide a detection device for an endoscope camera system, aiming to solve the problem that the existing detection device for an endoscope camera system has a single detection performance.

To achieve the above object, the present invention provides a detection device for an endoscope camera system, comprising:

A mounting seat, extending in the left and right directions;

A test assembly, comprising a standard light box, a transmission light box and a camera, wherein the standard light box is fixedly mounted on the mounting seat, the transmission light box and the camera are respectively located on the left and right sides of the standard light box, and both can be movably arranged in the left and right directions to approach or move away from the standard light box, the standard light box is provided with a through hole extending in the left and right directions, a test target plate is provided on a side of the transmission light box close to the standard light box, and the test target plate is arranged corresponding to the through hole so that the camera can collect an image of the test target plate; and,

The image acquisition component is electrically connected to the camera and is used to acquire the image of the camera.

Optionally, a clamping groove is formed on a side of the transmission light box close to the standard light box for the test standard plate to be clamped into.

Optionally, the transmission light box comprises a light-transmitting plate, and two clamping plates are respectively provided at the upper and lower ends of the light-transmitting plate;

The clamping groove is formed between the light-transmitting plate and the two clamping plates.

Optionally, the transmission light box is slidably mounted on the mounting seat along the left-right direction, and one of the transmission light box and the mounting seat is provided with a first slide rail, and the other is provided with a first slide groove adapted to the first slide rail.

Optionally, the test assembly further comprises a camera fixing structure, and the camera fixing structure is slidably mounted on the mounting seat along a left-right direction;

The camera is mounted on the camera fixing structure.

Optionally, the camera fixing structure includes a slide, and the camera fixing seat is arranged on the slide;

One of the slide platform and the mounting seat is provided with a second slide rail, and the other is provided with a second slide groove matched with the second slide rail.

Optionally, the camera fixing structure also includes a locking member, which is rotatably mounted on the slide along the front-rear axis so as to have the function of rotating to a limit position abutting against the mounting seat, and rotating to an avoidance position separated from the mounting seat, so as to limit the movement of the slide.

Optionally, the camera fixing structure also includes a three-axis slide arranged at the upper end of the slide, and the camera fixing seat is arranged at the upper end of the three-axis slide.

Optionally, a fixing plate is provided at the upper end of the mounting plate, and a positioning hole is provided on the fixing plate;

The standard light box is provided with a fixing block, and the fixing block is provided with a positioning column, and the positioning column cooperates with the positioning hole to install and fix the standard light box.

Optionally, a standard light source is arranged in the standard light box.

In the technical solution of the present invention, the detection device of the endoscopic camera system includes a mounting seat, a test component and an image acquisition component, and the mounting seat is extended in the left and right directions; the test component includes a standard light box, a transmission light box and a camera, the standard light box is fixedly installed on the mounting seat, the transmission light box and the camera are respectively located on the left and right sides of the standard light box, and both can be movably arranged in the left and right directions to approach or move away from the standard light box, the standard light box is provided with a through hole extending in the left and right directions, and the transmission light box is provided with a test target plate on one side close to the standard light box, and the test target plate is arranged corresponding to the through hole so that the camera can acquire the image of the test target plate; the image acquisition component is electrically connected to the camera to obtain the image of the camera. When testing the brightness response characteristics of the camera lens, an opaque cloth is irradiated on the test component to form a darkroom environment, the test target plate is installed on the transmission light box, and the transmission light box is moved so that the test target plate is attached to the through hole on the standard light box. The standard light box provides background brightness for the test target plate, and the transmission light box provides brightness for the test area on the test target plate. By adjusting the brightness of the transmission light box, the test area on the test target plate obtains different brightness. The distance between the camera lens and the test target plate is adjusted so that the camera lens can capture the entire test target plate. When the test area on the test target plate obtains different brightness, the camera lens takes pictures of the test target plate respectively to obtain images of the test target plate at corresponding brightness. The image acquisition component obtains and analyzes the image captured by the camera to test the brightness response characteristics of the camera lens. When testing the performance of the camera, the corresponding test target plate is replaced and installed, and the distance between the camera lens and the test target plate is adjusted, so as to realize multiple performance tests of the camera, such as brightness response characteristic test, signal-to-noise ratio test, spatial frequency response test, static image tolerance test, effective pixel test, horizontal resolution test, zoom ratio test, image geometric distortion test, color restoration ability test, optical zoom function test, field of view angle test, etc., which is convenient and fast, improves the detection efficiency, reduces the equipment investment cost of the endoscope camera system performance detection, and improves the practicality of the detection device of the endoscope camera system.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

FIG1 is a schematic structural diagram of an embodiment of a detection device for an endoscope camera system provided by the present invention;

FIG2 is a schematic diagram of the structure of the transmission light box in FIG1;

FIG. 3 is a partial enlarged view of point A in FIG. 1 .

Description of Figure Numbers:

Label name Label name 100 Detection device for endoscope camera system 222 Idol 1 Mounting Block 222a Card board 11 First slide rail twenty three Camera 12 Second slide rail 4 Camera fixing structure 13 Fixed plate 41 Slide 131 Positioning hole 411 Second chute 2 Test Components 412 Locking parts twenty one Standard light box 42 Three-axis slide 211 Fixed block 5 Test standard twenty two Transmission light box 6 Image acquisition components 221 First chute

The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" appearing in the full text includes three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

As an important tool for minimally invasive surgery, endoscopes can enter the human body cavity and transmit the images taken inside the body to the screen in real time for observation by the surgeon or the doctor. Due to the complex internal environment of the human body, the imaging quality of the camera system is required to be high. The imaging quality of the camera system directly affects the doctor's observation and judgment. Therefore, it is of great clinical significance to test the imaging quality of the endoscope camera system. At present, the existing endoscope camera system detection device can only realize the single performance detection of the endoscope camera system, and cannot meet the needs of multiple performance detection of the endoscope camera system.

In view of this, the present invention proposes a detection device for an endoscopic camera system. When testing the performance of the camera, the corresponding test target plate is replaced and installed, and the distance between the camera lens and the test target plate is adjusted to achieve multiple performance tests of the camera, which is convenient and fast, improves the detection efficiency, reduces the equipment investment cost of the performance test of the endoscopic camera system, and improves the practicality of the detection device for the endoscopic camera system. As shown in Figures 1 to 3, an embodiment of the detection device for an endoscopic camera system provided by the present invention is shown.

As shown in Figures 1 to 3, the detection device 100 of the endoscope camera system proposed in the present invention includes a mounting seat 1, a test component 2 and an image acquisition component 6, wherein the mounting seat 1 is extended in the left-right direction; the test component 2 includes a standard light box 21, a transmission light box 22 and a camera 23, wherein the standard light box 21 is fixedly mounted on the mounting seat 1, the transmission light box 22 and the camera 23 are respectively located on the left and right sides of the standard light box 21, and both can be movably arranged in the left-right direction to approach or move away from the standard light box 21, the standard light box 21 is provided with a through hole extending in the left-right direction, and a test target plate 5 is provided on a side of the transmission light box 22 close to the standard light box 21, and the test target plate 5 is arranged corresponding to the through hole so that the camera 23 can collect the image of the test target plate 5; the image acquisition component 6 is electrically connected to the camera 23 to obtain the image of the camera 23.

In the technical solution of the present invention, the detection device 100 of the endoscope camera system includes a mounting seat 1, a test component 2 and an image acquisition component 6, wherein the mounting seat 1 is extended in the left-right direction; the test component 2 includes a standard light box 21, a transmission light box 22 and a camera 23, wherein the standard light box 21 is fixedly installed on the mounting seat 1, the transmission light box 22 and the camera 23 are respectively located on the left and right sides of the standard light box 21, and both can be movably arranged in the left-right direction to approach or move away from the standard light box 21, the standard light box 21 is provided with a through hole extending in the left-right direction, and a test target plate 5 is provided on a side of the transmission light box 22 close to the standard light box 21, and the test target plate 5 is arranged corresponding to the through hole so that the camera 23 can collect the image of the test target plate 5; the image acquisition component 6 is electrically connected to the camera 23 to obtain the image of the camera 23. When testing the brightness response characteristics of the camera 23, an opaque cloth is irradiated on the test component 2 to form a darkroom environment, the test target plate 5 is installed on the transmission light box 22, and the transmission light box 22 is moved so that the test target plate 5 is attached to the through hole on the standard light box 21. The standard light box 21 provides background brightness for the test target plate 5, and the transmission light box 22 provides brightness for the test area on the test target plate 5. By adjusting the brightness of the transmission light box 22, the test area on the test target plate 5 can obtain different brightness. The distance between the camera 23 and the test target plate 5 is adjusted so that the camera 23 can capture the entire test target plate 5. When the test area on the test target plate 5 obtains different brightness, the camera 23 takes pictures of the test target plate 5 respectively to obtain images of the test target plate 5 at corresponding brightness. The image acquisition component 6 obtains and analyzes the images captured by the camera 23 to test the brightness response characteristics of the camera 23. When testing the performance of the camera 23, the corresponding test target plate 5 is replaced and installed, and the distance between the camera 23 and the test target plate 5 is adjusted, so as to realize multiple performance tests of the camera 23, such as brightness response characteristic test, signal-to-noise ratio test, spatial frequency response test, static image tolerance test, effective pixel test, horizontal resolution test, zoom ratio test, image geometric distortion test, color restoration ability test, optical zoom function test, field of view angle test, etc., which is convenient and fast, improves the detection efficiency, reduces the equipment investment cost of the endoscope camera system performance detection, and improves the practicality of the detection device 100 of the endoscope camera system.

The test target plate 5 is mounted on the transmission light box 22. In this embodiment, as shown in FIG2 , a clamping groove is formed on the side of the transmission light box 22 close to the standard light box 21 for clamping the test target plate 5. The test target plate 5 is clamped into the clamping groove so that it is located between the transmission light box 22 and the standard light box 21, and the test target plate 5 is installed and fixed through the clamping groove, so that when the camera 23 is subjected to multiple performance tests, it is convenient to replace the corresponding test target plate 5.

Specifically, the transmission light box 22 includes a light-transmitting plate 222, and two clamping plates are respectively arranged at the upper and lower ends of the light-transmitting plate 222; the clamping groove is formed between the light-transmitting plate 222 and the two clamping plates. The light of the transmission light box 22 is irradiated on the test area of the test target plate 5 through the light-transmitting plate 222, and two clamping plates are respectively arranged at the upper and lower ends of the light-transmitting plate 222, so that the two clamping plates and the light-transmitting plate 222 are enclosed together to form the clamping groove, which is convenient for the installation and removal of the test target plate 5, helps to shorten the preparation time of the detection device 100 of the endoscope camera system, and improves the detection efficiency.

The transmission light box 22 is arranged on the mounting seat 1 and is movably arranged in the left and right directions. In this embodiment, as shown in FIG1 , the transmission light box 22 is slidably installed on the mounting seat 1 in the left and right directions, and one of the transmission light box 22 and the mounting seat 1 is provided with a first slide rail 11, and the other is provided with a first slide groove 221 adapted to the first slide rail 11. Through the cooperation of the first slide rail 11 and the first slide groove 221, the transmission light box 22 can be moved in the left and right directions on the mounting seat, and the cooperation of the first slide rail 11 and the first slide groove 221 guides the left and right movement of the transmission light box 22, ensuring that the transmission light box 22, the standard light box 21 and the camera 23 are always in the same straight line, avoiding the position deviation of the transmission light box 22 after the left and right movement.

Specifically, in this embodiment, as shown in FIG1 , the test assembly 2 further includes a camera fixing structure 4, which is slidably mounted on the mounting seat 1 in the left-right direction; the camera 23 is mounted on the camera fixing structure 4. When performing multiple performance tests on the camera 23, it is necessary to install the corresponding test target plate 5 on the transmission light box 22, and adjust the distance between the camera 23 and the corresponding test target plate 5. By moving the camera 23 fixing structure left-right, after replacing the corresponding test target plate 5, the camera 23 can capture a complete and clear image of the test target plate 5.

The camera 23 fixing structure can slide left and right on the mounting seat 1. In this embodiment, as shown in Figures 1 and 3, the camera fixing structure 4 includes a slide 41, and the camera 23 fixing seat is arranged on the slide 41; one of the slide 41 and the mounting seat 1 is provided with a second slide rail 12, and the other is provided with a second slide groove 411 adapted to the second slide rail 12. Through the cooperation of the second slide rail 12 and the second slide groove 411, the slide 41 can be slidably installed on the mounting seat 1 along the left and right directions, and the second slide rail 12 and the second slide groove 411 cooperate to guide the left and right movement of the slide 41, so as to ensure that the transmission light box 22, the standard light box 21 and the camera 23 are always in the same straight line, and avoid the position of the camera 23 from being offset after the left and right movement.

The slide 41 is provided with a limiting structure for the movement and positioning of the camera 23. In this embodiment, as shown in FIG3 , the camera fixing structure 4 further includes a locking member 412, which is rotatably mounted on the slide 41 along the front-back axis, so as to have a limit position of being rotated to abut against the mounting seat 1, and a avoidance position of being rotated to be separated from the mounting seat 1, so as to limit the movement of the slide 41. By setting the locking member 412, when the camera 23 moves left and right to capture a complete and clear image of the test target plate 5, the locking member 412 is rotated to abut against the mounting seat 1, so that the slide 41 is fixed on the mounting seat 1, thereby keeping the relative position of the camera 23 and the test target plate 5 unchanged.

Specifically, in this embodiment, as shown in FIG3 , the camera fixing structure 4 further includes a three-axis slide 42 disposed at the upper end of the slide 41, and the camera 23 fixing seat is disposed at the upper end of the three-axis slide 42. By providing the three-axis slide 42, after the slide 41 moves left and right to complete the position adjustment of the camera 23, the three-axis slide 42 can be used to achieve fine adjustment of the camera 23 in the three directions of X, Y, and Z, so that the camera 23 can capture a complete and clear image of the test target plate 5.

In this embodiment, as shown in FIG1 , a fixing plate 13 is provided at the upper end of the mounting plate, and a positioning hole 131 is provided on the fixing plate 13; the standard light box 21 is provided with a fixing block 211, and a positioning column is provided on the fixing block 211, and the positioning column cooperates with the positioning hole 131 to install and fix the standard light box 21. The positioning hole 131 is provided on the fixing plate 13, and the fixing block 211 is provided with the fixing column. Through the cooperation of the positioning hole 131 and the fixing column, the standard light box 21 is fixed to the fixing plate 13, so that the installation and disassembly of the standard light box 21 is convenient and time-saving, saving the installation time of the standard light box 21 and improving the installation efficiency.

Specifically, a standard light source is provided in the standard light box 21. The standard light source has the advantages of stable spectrum, accurate color rendering, standardized illumination, and uniform illumination, which is helpful to improve the accuracy of the performance detection of the camera 23.

The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly/indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims (6)

1. A detection device for an endoscopic imaging system, comprising:

the mounting seat extends in the left-right direction;

the test assembly comprises a standard lamp box, a transmission lamp box and a camera, wherein the standard lamp box is fixedly arranged on the mounting seat, the transmission lamp box and the camera are respectively positioned on the left side and the right side of the standard lamp box and can be movably arranged along the left and the right directions so as to be close to or far away from the standard lamp box, the standard lamp box is provided with a through hole extending along the left and the right directions, one side of the transmission lamp box, which is close to the standard lamp box, is provided with a test target, and the test target is correspondingly arranged with the through hole so that the camera can collect images of the test target; the method comprises the steps of,

the image acquisition component is electrically connected with the camera and used for acquiring an image of the camera;

the side face, close to the standard lamp box, of the transmission lamp box is provided with a clamping groove for clamping the test target board in;

the test assembly further comprises a camera fixing structure, and the camera fixing structure is slidably arranged on the mounting seat along the left-right direction;

the camera is arranged on the camera fixing structure;

the camera fixing structure comprises a sliding table, and the camera fixing seat is arranged on the sliding table;

one of the sliding table and the mounting seat is provided with a second sliding rail, and the other is provided with a second sliding groove matched with the second sliding rail;

the camera fixing structure further comprises a three-shaft sliding table arranged at the upper end of the sliding table, and the camera fixing seat is arranged at the upper end of the three-shaft sliding table.

2. The inspection device of an endoscopic camera system according to claim 1, wherein said light-transmitting box comprises a light-transmitting plate, and two clamping plates are respectively arranged at the upper and lower ends of said light-transmitting plate;

the clamping groove is formed between the light-transmitting plate and the two clamping plates.

3. The inspection device of an endoscopic camera system according to claim 1, wherein said transmission light box is slidably mounted on said mounting base in a left-right direction, one of said transmission light box and said mounting base is provided with a first slide rail, and the other is provided with a first slide groove adapted to said first slide rail.

4. The endoscopic camera system detection apparatus according to claim 1, wherein said camera head securing structure further comprises a locking member rotatably mounted to said slide table along a forward-rearward axis to have a limit position rotated to abut said mount, and an evasive position separated from said mount for limiting movement of said slide table.

5. The detecting device for an endoscopic camera system according to claim 1, wherein a fixing plate is provided at an upper end of said mounting base, and a positioning hole is provided on said fixing plate;

the standard lamp box is provided with a fixed block, a positioning column is arranged on the fixed block, and the positioning column is matched with the positioning hole and used for fixing the standard lamp box.

6. The inspection device of an endoscopic imaging system as defined in claim 1, wherein a standard light source is disposed within said standard light box.