KR102171994B1 - Endoscopic equipment with image conversion table - Google Patents

Abstract

The present invention provides an endoscope instrument with an image conversion table. A medical endoscope has an insertion unit with a lighting guide, an image guide, and a plurality of pipes embedded therein. The image guide (50) consists of a clad (500) with a plurality of optical fibers (100) embedded therein. The plurality of optical fibers (100) include a core unit (110) and a core unit skin (120) enclosing the core unit (110). The medical endoscope further includes: a CCD array (200) to acquire an image transmitted through the core unit (110); an image board (300) to process an image acquired from the CCD array (200); and a monitor (400) to display an image processed by the image board (300). An image conversion control table (310) is included and changes a cell position of an image acquired by the CCD array (200) to reconstruct an image.

Description

Endoscopic equipment with image conversion table

The present invention relates to an endoscopy apparatus having an image conversion table, and more particularly, to an endoscopy apparatus having an image conversion table that reconstructs an image by changing a cell position of an image acquired by a CCD array.

A medical endoscope is a medical device that is inserted into an internal organ or body cavity so that you can see the inside of it without performing a direct operation.The endoscopy, which started in the form of a metal tube in the early days, was developed with the development of science and technology. Various treatment methods have come to be devised and are used in various ways in various digestive diseases.

A conventional medical endoscope includes an illumination guide, an image guide 1, an insertion part inserted into a human body by incorporating a plurality of pipes, and an operation part controlling the insertion part.

In addition, the illumination and image guide 1 is for transmitting an image of the inside of the human body generated from a light source, and in general, a multi-core optical fiber cable in which a plurality of optical fibers capable of efficiently transmitting light is arranged is used. It is composed by

Referring to (a) of FIG. 1, the image acquired from the camera provided at the tip of the insertion part is input through the input end 11 of the image guide 1, and the image 11a is input through the output end 12. An output stage image 12a is transmitted to the CCD array 2, and the image 2a obtained from the CCD array 2 is processed by the image board 3 and output 4a through the monitor 4.

However, if the array of optical fibers in the image guide 50 is misaligned or the optical fibers are bent due to external factors such as endoscope assembly, the input terminal 51 and the output terminal 52 are not matched or matched in a one-to-one manner. .

In this case, as shown in (b) of FIG. 1, the cell location in the image guide 50 is changed, and the cell location is changed compared to the image 51b of the input terminal 51, such as the image 52b of the output terminal 52. The image (400b) is output in the state of the image 52b, is transmitted to the CCD array 200, and the cell position is changed to the monitor 400 is output.

That is, if the one-to-one matching or correspondence between the input terminal 51 and the output terminal 52 is not made, an image whose cell location has been changed is output to the monitor, thereby reducing the accuracy and recognition rate of the image captured with the endoscope.

Republic of Korea Patent Application Publication No. 10-2007-0094746 Republic of Korea Patent Publication Registration No. 10-0673412 Republic of Korea Patent Application Publication No. 10-2019-0065754

An object of the present invention is to solve the above-described problem, and to provide an endoscopy apparatus having an image conversion table for reconstructing an image by changing a cell position of an image acquired by a CCD array.

In addition, an image conversion table capable of correcting the position of the image output terminal and the connection error of the CCD array based on the preset origin core in the case of setting an arbitrary core among the coordinates of the image output stage as the origin core and when a connection error occurs. The purpose of this is to provide an endoscope equipped with an endoscope.

However, the object of the present invention is not limited to the above-mentioned object, and another object that is not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention is a medical endoscope provided with a lighting guide, an image guide, and an insertion part incorporating a plurality of pipes, wherein the image guide 50 is a clad having a plurality of optical fibers 100 embedded therein. Consisting of 500, the plurality of optical fibers 100 is composed of a core portion 110 and a core portion shell 120 surrounding the core portion 110, and transmitted through the core portion 110 A CCD array 200 for acquiring an image, an image board 300 for processing an image acquired from the CCD array 200, and a monitor 400 for displaying an image processed by the image board 300 are further included. In addition, there is provided an endoscope device having an image conversion table, characterized in that it includes an image conversion control table 310 for reconstructing an image by changing a cell position of an image acquired by the CCD array 200.

In addition, the image conversion control table 310 is composed of a plurality of cells, the plurality of cells is formed equal to or smaller than the number of cells of the CCD array 200, the image conversion control table 310, the CCD array A transformation variable capable of converting the array of images obtained in (200) is stored.

In addition, the monitor 400 is provided with a memory module corresponding to each pixel of the monitor, the monitor is displayed by the value input to the memory module, and the conversion variable is the image acquired through the CCD array 200. When the image of the divided cell unit is transmitted to the memory module after being divided by each cell unit, a cell shift value for transmitting to the memory by changing the position of the cell unit is included.

In addition, the cell shift value is stored in each cell of the image conversion control table 310, and the arrangement of the cores of the image input terminal 51 of the image guide 50 is (Xi, Yj) (where i = 1 ,2,3, ... p-1,p,p+1, ..., n-1, n)(j =1,2,3, ... q-1,q,q+1, ..., m-1, m,), and the arrangement of the cores of the image output terminal 52 of the image guide 50 is (Ui, Vj) (where i =1,2,3, ... p '-1,p',p'+1, ..., n-1, n)(j =1,2,3, ... q'-1,q',q'+1, ... , m-1, m), the input image value of the core located at (Xi, Yj) is I^ ij, the output image value of the core located at (Ui, Vj) is I'ij, and The array of cells of the CCD array 200 is (Ci, Dj) (where i =1,2,3, ... b-1,b,b+1, ..., g-1, g)(j =1,2,3, ... k-1,k,k+1, ..., h-1, h), and the array of cells of the image conversion control table 310 is (Ei, Fj ) (Where i =1,2,3, ... o-1,o,o+1, ..., s-1, s)( j =1,2,3, ... r-1, When r,r+1, ..., t-1, t), the final subscript n of the i array in the core array, the final subscript g of the i array in the CCD array 200, and image conversion In the array of the control table 310, the relationship between the ending subscript s of the array i is n <g <s, the ending m of the j array in the core array, and the ending subscript h of the j array in the CCD array 200 And, in the arrangement of the image conversion control table 310, the relationship between the ending subscript t of the j arrangement is provided with an endoscope device having an image conversion table, characterized in that m <h <t.

In addition, the input image value of the (X3, Y4) core is not output at the position (U3, U4) of the image output terminal 52 in which the image value input from the corresponding core is to be output, and the ( U7, U8) is output from coordinates, and at this time, the coordinate subscript is 7 ≠ 3, 8 ≠ 4, and in this case, the image conversion control table 310 corresponding to the position (U7, U8) of the image output terminal 52 In the positions of (E7, F8), a derived vector derived from the coordinates (E3, F4) of the image conversion control table 310 corresponding to the positions (U3, U4) of the image output terminal 52 is stored.

In addition, when the input image value of the (Xp,Yq) core is outputted from the corresponding core, it is not output at the (Up, Uq) position of the image output terminal 52, and the (Up' of the image output terminal 52) ,Uq') is output from coordinates, and in this case, when the coordinate subscript p'≠ p, q'≠ q, the image conversion control table 310 corresponding to the (Up', Uq') position of the image output terminal 52 In the position of (Eo, Fr) of, a derivation vector derived from the coordinates of (Ep, Fq) of the image conversion control table 310 corresponding to the position of (Up, Uq) of the image output terminal 52 is stored.

In addition, an arbitrary core among the coordinates of the image output terminal 52 is designated as an origin core ('O'), and the output terminal 52 of the image guide 50 is connected to the CCD array 200, When a connection error occurs between the image output terminal 52 and the CCD array 200, the position of the image output terminal 52 and the connection error to the CCD array 200 are corrected based on the origin core'O'.

In addition, the arrangement of the cores of the image input terminal 51 of the image guide 50 is (Xi, Yj) (where i =1,2,3, ... p-1,p,p+1, ... , n-1, n) (j =1,2,3, ... q-1,q,q+1, ..., m-1, m,) of the image input terminal 51 As light is sequentially input to each core and the input light is detected through the CCD array 200 connected to the image output terminal 52, the array of the image input terminal 51 and the image output terminal 52 cores is ( Ui, Vj) (where i =1,2,3, ... p'-1,p',p'+1, ..., n-1, n)(j =1,2,3, ... q'-1,q',q'+1, ..., m-1, m) of the alignment errors are detected, and the alignment errors are calculated in the cells of the image conversion control table 310 (Ei, Fj) (where i =1,2,3, ... o-1,o,o+1, ..., s-1, s)(j =1,2,3, ... r-1 ,r,r+1, ..., t-1, t) by storing the derived vector in each, the image input from the image input terminal 51 by the image conversion table 310 is an image due to an alignment error There is provided an endoscope device having an image conversion table, characterized in that distortion is corrected and displayed through the monitor 400.

In addition, after connecting the image output terminal 52 of the image guide 50 to the CCD array 200, light is input to the origin core ('O'), and the origin core (' After detecting the position of O'), if the position of the origin core ('O') is changed, the derived vector stored in each cell of the image conversion table 310 is the position of the origin core ('O'). As the coordinates of the image conversion table 310 are corrected accordingly, the storage location of the guidance vector is also changed.

Features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to this, terms or words used in the present specification and claims should not be interpreted in a conventional and dictionary meaning, and the inventor may appropriately define the concept of the term in order to describe his or her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

As described above, according to the present invention, for an image acquired through an endoscope, a reduction in recognition rate and accuracy caused by not being matched or matched one-to-one with each other of the pixels of each coordinate system is reduced. There is an effect of increasing the recognition rate and accuracy of the image captured through the endoscope by reconfiguring the image by changing the cell position through the cell position.

1 is a diagram schematically showing a process of displaying an image captured through a conventional medical endoscope;
2 is a schematic configuration diagram of an endoscope equipped with a conversion table according to an embodiment of the present invention;
Figure 3 is a configuration diagram showing a cladding according to an embodiment of the present invention,
FIG. 4 is a diagram schematically showing a process of reconstructing an image by changing a cell position through an endoscope equipped with a conversion table according to a preferred embodiment of the present invention;
5 is a diagram schematically showing a configuration for setting an origin core through an endoscope according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention and may vary according to the intention or custom of users or operators. Therefore, definitions of these terms should be made based on the contents throughout the present specification.

In addition, the following examples do not limit the scope of the present invention, but are merely exemplary matters of the elements presented in the claims of the present invention, and are included in the technical idea throughout the specification of the present invention and the composition of the claims. Embodiments including elements that can be substituted as equivalents in elements may be included in the scope of the present invention.

2 is a schematic configuration diagram of an endoscope having a conversion table according to a preferred embodiment of the present invention, FIG. 3 is a configuration diagram showing a cladding according to a preferred embodiment of the present invention, and FIG. A diagram schematically showing a process of reconstructing an image by changing a cell location through an endoscope equipped with a conversion table according to a preferred embodiment of the present invention. It is a diagram schematically showing a configuration for setting the origin core.

The medical endoscope according to the present invention is controlled by the operation unit 20 and the operation unit 20, and includes an insertion unit 10 inserted into the human body and incorporating a plurality of pipes.

In addition, a lighting guide 40 and an image guide 50 connected to the manipulation unit 20 are provided, wherein the lighting guide 40 and the image guide 50 are illuminated light generated from a light source or an image captured inside the human body. It is to transmit.

In addition, the image guide 50 is composed of a clad 500 in which a plurality of optical fibers 100 are embedded.

In addition, the plurality of optical fibers 100 includes a core portion 110 and a core portion shell 120 surrounding the core portion 110.

In addition, a CCD array 200 for acquiring an image transmitted through the core unit 110, an image board 300 for processing an image obtained from the CCD array 200, and the image processed by the image board 300. A monitor 400 for displaying an image is further included.

In addition, an image conversion control table 310 that stores a conversion variable capable of converting the array of images obtained from the CCD array 200 in the image board 300 and controls the conversion to an image to which the conversion variable is applied. There is provided an endoscope device having an image conversion table, characterized in that it further comprises.

In addition, the image conversion control table 310 includes a plurality of cells, and the plurality of cells are formed equal to or smaller than the number of cells of the CCD array 200.

In addition, the image conversion control table 310 stores a conversion variable capable of converting the arrangement of images obtained from the CCD array 200.

In addition, the monitor 400 is provided with a memory module corresponding to each pixel of the monitor, and the monitor is displayed according to a value input to the memory module.

In addition, the conversion variable is a cell for transferring the image obtained through the CCD array 200 into a memory by dividing the image in each cell unit and then changing the position of the cell unit when transmitting the divided cell-unit image to the memory module. The shift value is included.

In addition, the cell shift value is stored in each cell of the image conversion control table 310, and the core arrangement 51c of the image input terminal 51 of the image guide 50 is (Xi, Yj) (here i =1,2,3, ... p-1,p,p+1, ..., n-1, n)(j =1,2,3, ... q-1,q,q +1, ..., m-1, m,), and the array 52c of the cores of the image output terminal 52 of the image guide 50 is (Ui, Vj) (where i =1,2, 3, ... p'-1,p',p'+1, ..., n-1, n)(j = 1,2,3, ... q'-1,q',q' +1, ..., m-1, m).

In addition, the input image value of the core located at (Xi, Yj) is I^ ij, the output image value of the core located at (Ui, Vj) is I^ ij, and the cell of the CCD array 200 Array(200c) (Ci, Dj) (where i =1,2,3, ... b-1,b,b+1, ..., g-1, g)(j =1,2, 3, ... k-1,k,k+1, ..., h-1, h), and the cell array 310c of the image conversion control table 310 is (Ei, Fj) ( Where i =1,2,3, ... o-1,o,o+1, ..., s-1, s)(j =1,2,3, ... r-1,r, In the case of r+1, ..., t-1, t), the end subscript n of the i array in the core array (51c, 52c) and the end of the i array in the array (200c) of the CCD array 200 The relationship between the subscript g and the end subscript s of the i array in the array 310c of the image conversion control table 310 is composed of n <g <s.

In addition, the final subscript m of the j array in the core arrays 51c and 52c, the final subscript h of the j array in the array 200c of the CCD array 200, and the array 310c of the image conversion control table 310 ), the relationship of the terminator t of the j array consists of m <h <t.

That is, the input image value of the (X3, Y4) core is not output at the position (U3, U4) of the image output terminal 52 to which the image value input from the corresponding core is to be output, but the ( U7, U8) is output from coordinates, and at this time, the coordinate subscript is 7 ≠ 3, 8 ≠ 4, and in this case, the image conversion control table 310 corresponding to the position (U7, U8) of the image output terminal 52 In the positions of (E7, F8), a derived vector derived from the coordinates (E3, F4) of the image conversion control table 310 corresponding to the positions (U3, U4) of the image output terminal 52 is stored.

Therefore, the input image value of the (Xp,Yq) core is not output at the (Up, Uq) position of the image output terminal 52 to which the image value input from the corresponding core is to be output, and the (Up' of the image output terminal 52) ,Uq') is output from coordinates, and in this case, when the coordinate subscript p'≠ p, q'≠ q, the image conversion control table 310 corresponding to the (Up', Uq') position of the image output terminal 52 In the position of (Eo, Fr) of, a derivation vector derived from the coordinates of (Ep, Fq) of the image conversion control table 310 corresponding to the position of (Up, Uq) of the image output terminal 52 is stored.

In addition, an arbitrary core among the coordinates of the image output terminal 52 is designated as an origin core ('O'), and the output terminal 52 of the image guide 50 is connected to the CCD array 200, When a connection error occurs between the image output terminal 52 and the CCD array 200, the position of the image output terminal 52 and the connection error to the CCD array 200 are corrected based on the origin core'O'.

In addition, the array 51d of the cores of the image input terminal 51 of the image guide 50 is (Xi, Yj) (where i =1,2,3, ... p-1,p,p+1, ..., n-1, n)(j =1,2,3, ... q-1,q,q+1, ..., m-1, m,), the image input terminal ( As light is sequentially input to each core of 51) and the input light is detected through the CCD array 200 connected to the image output terminal 52, the image input terminal 51 and the image output terminal 52 core Array of(52d) (Ui, Vj) (where i =1,2,3, ... p'-1,p',p'+1, ..., n-1, n)( j = 1,2,3, ... q'-1,q',q'+1, ..., m-1, m) alignment errors are detected.

And the alignment error is calculated as cells (Ei, Fj) of the image conversion control table 310 (where i =1,2,3, ... o-1,o,o+1, ..., s-1). , s)(j =1,2,3, ... r-1,r,r+1, ..., t-1, t) by storing the derived vectors in each, the image conversion table 310 As a result, the image input from the image input terminal 51 is corrected for image distortion due to an alignment error and is displayed through the monitor 400.

In addition, after the pixel 52d of the image output terminal 52 corresponds to the pixel 200d of the CCD array 200, when light is input to the origin core ('O'), the origin core ('O') It is possible to detect whether or not the position of is changed.

In addition, after connecting the image output terminal 52 of the image guide 50 to the CCD array 200, light is input to the origin core ('O'), and the origin core (' After detecting the position of O'), if the position of the origin core ('O') is changed, the derived vector stored in each cell of the image conversion table 310 is the position of the origin core ('O'). As the coordinates of the image conversion table 310 are corrected accordingly, the storage location of the guidance vector is also changed.

Although the present invention has been described in detail through specific examples, this is for explaining the present invention in detail, and the present invention is not limited thereto, and those of ordinary skill in the art within the spirit of the present invention It is clear that modifications or improvements are possible.

All simple modifications to changes of the present invention belong to the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

50: image guide 51: image input terminal
52: image output terminal 100: optical fiber
110: core part 120: core part sheath
200: CCD array 300: image board
310: image conversion table 400: monitor
500: clad

Claims (6)

In the medical endoscope having a lighting guide, an image guide, and an insertion part incorporating a plurality of pipes,
The image guide 50 is composed of a clad 500 in which a plurality of optical fibers 100 are embedded,
The plurality of optical fibers 100 includes a core portion 110,
Consisting of a core portion shell 120 surrounding the core portion 110,
A CCD array 200 for acquiring an image transmitted through the core unit 110,
An image board 300 for processing the image acquired from the CCD array 200,
The image board 300 further includes an image conversion control table 310 that stores a conversion variable capable of converting the array of images obtained from the CCD array 200 and controls the conversion to an image to which the conversion variable is applied. Equipped,
A monitor 400 for displaying the image processed by the image board 300 is further included,
The image conversion control table 310 is composed of a plurality of cells, the plurality of cells is formed equal to or smaller than the number of cells of the CCD array 200,
The monitor 400 is provided with a memory module corresponding to each pixel of the monitor, and the monitor is displayed according to the value input to the memory module,
When the image obtained through the CCD array 200 is divided into each cell unit, and the image of the divided cell unit is transmitted to the memory module, the conversion variable changes the position of the cell unit to transfer the cell to the memory. Value is included,
The cell shift value is stored in each cell of the image conversion control table 310,
The arrangement of the cores of the image input terminal 51 of the image guide 50 is (Xi, Yj) (where i =1,2,3, ... p-1,p,p+1, ..., n Let -1, n)(j =1,2,3, ... q-1,q,q+1, ..., m-1, m,),
The arrangement of the cores of the image output terminal 52 of the image guide 50 is (Ui, Vj) (where i =1,2,3, ... p'-1,p',p'+1, .. ., n-1, n)(j =1,2,3, ... q'-1,q',q'+1, ..., m-1, m),
Let the input image value of the core located at (Xi, Yj) be I^ij,
The output image value of the core located at (Ui, Vj) is I^ij,
The array of cells of the CCD array 200 is (Ci, Dj) (where i =1,2,3, ... b-1,b,b+1, ..., g-1, g)( Let j =1,2,3, ... k-1,k,k+1, ..., h-1, h),
The array of cells of the image conversion control table 310 is (Ei, Fj) (where i =1,2,3, ... o-1,o,o+1, ..., s-1, s )(j =1,2,3, ... r-1,r,r+1, ..., t-1, t),
The relationship between the end subscript n of the i array in the core array, the end subscript g of the i array in the arrangement of the CCD array 200 and the end subscript s of the i array in the image conversion control table 310 is n <g <s and
The relationship between the final subscript m of the j array in the core array, the final subscript h of the j array in the CCD array 200, and the final subscript t of the j array in the image conversion control table 310 is m <h <t,
In addition, the arrangement of the cores of the image input terminal 51 of the image guide 50 is (Xi, Yj) (where i =1,2,3, p-1,ptp+1, n-1, n)(j =1,2,3, q-1,q, q+1, m-1, m,), light is sequentially input to each core of the image input terminal 51, and the input light is imaged. As detected through the CCD array 200 connected to the output terminal 52, the arrangement of the image input terminal 51 and the core of the image output terminal 52 is (Ui, Vj) (where i =1,2,3, p Array error of'-1,p',p'+1, n-1, n)(j =1,2,3, q'-1,q',q'+1, m-1, m) Detection, and the alignment error of the cells (Ei, Fj) of the image conversion control table 310 (where i =1,2,3, o-1,o, o+1, s-1, s)(j =1,2,3, r-1,r, r+1, t-1, t) By storing the derived vector in each, the image input from the image input terminal 51 by the image conversion table 310 The image distortion due to the alignment error is corrected and displayed through the monitor 400,
In addition, an arbitrary core among the coordinates of the image output terminal 52 is designated as an origin core ('O'), and the output terminal 52 of the image guide 50 is connected to the CCD array 200, When a connection error occurs between the image output terminal 52 and the CCD array 200, the position of the image output terminal 52 and the connection error to the CCD array 200 are corrected based on the origin core ('O'),
Correction of the connection error is performed by connecting the image output terminal 52 of the image guide 50 to the CCD array 200, and then inputting light to the origin core'O' from the CCD array 200. After detecting the position of the origin core ('O'), when the position of the origin core ('O') is changed, the derived vector stored in each cell of the image conversion table 310 is the origin core ('O'). '), as the coordinates of the image conversion table 310 are corrected, the storage location of the guidance vector is also changed.

delete delete delete delete delete

Images