CN102626311A - Medical wireless capsule endoscope system - Google Patents
Medical wireless capsule endoscope system Download PDFInfo
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- CN102626311A CN102626311A CN2012101353548A CN201210135354A CN102626311A CN 102626311 A CN102626311 A CN 102626311A CN 2012101353548 A CN2012101353548 A CN 2012101353548A CN 201210135354 A CN201210135354 A CN 201210135354A CN 102626311 A CN102626311 A CN 102626311A
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Abstract
The invention provides a medical wireless capsule endoscope system, which comprises a capsule endoscope, an image recording instrument and a video workstation, wherein the capsule endoscope is in wireless communication connection with the image recording instrument; and the video workstation is used for obtaining and analyzing images stored in the image recording instrument. The medical wireless capsule endoscope system is characterized in that the video workstation comprises an image input unit used for receiving the images stored in the image recording instrument, a haemochrome computing unit used for converting a color data value of each pixel of the images to a haemochrome value and computing a haemochrome mean value of the haemochrome values of all pixels of each image, an image emphasizing unit used for strengthening the contrast ratios of the images from the image input unit, and an image display unit used for displaying the strengthened images. By adopting the medical wireless capsule endoscope system, a doctor can discover light color parts and deep color parts in the images conveniently, rapidly and clearly, so the efficiency that the doctor discovers pathological images through the video workstation is improved.
Description
Technical field
The present invention relates to medical apparatus and instruments, relate in particular to the medical radio endoscopic system.
Background technology
The medical radio endoscopic system is called the intelligent capsule digestive tract endoscope system again.The medical radio endoscopic system comprises capsule endoscope, image recorder and image workstation.Its operation principle is the capsule endoscope that person under inspection's administered through oral is built-in with shooting and signal transmitting apparatus; Make it motion and photographic images in digestive tract by peristalsis of the digest tract; The image that capsule endoscope photographs is delivered to image recorder through the mode of wireless transmission; Image recorder is sent to image workstation with the image that receives; The doctor observes the image of the human gastrointestinal tract that capsule endoscope photographs through image workstation; If certain position in the image obvious color contrast occurs with position on every side, this position that colour contrast then occurs is the diseased region of human body probably, so the doctor need observe the image of concurrent existing colour contrast on image workstation.Lesion degree is high more, and the colour contrast of diseased region is big more in the image, if lesion degree is lower, colour contrast is just more little, and this colour contrast might be darker than normal site color, also might be more shallow than normal site color.If the colour contrast of pathological changes image is too little; The doctor is not easy to find that capsule endoscope is taken two frames each second in human body simultaneously, takes calculating in 8 hours in vivo with capsule endoscope; Offer doctor's nearly about 50,000 of image; In the case, the doctor is more difficult to find the less image of colour contrast from pictures up to ten thousand, and picture contrast is big more; The contrast position of image is just obvious more, therefore how strengthens the problem that the contrast of image has become the engineer to solve through the contrast that improves image.
Summary of the invention
The technical problem that the present invention solves is: a kind of medical radio endoscopic system is provided, not only can conveniently obtains the image of human gastrointestinal tract, and be convenient to the image that the doctor finds to exist pathological changes.
Technical scheme of the present invention is: a kind of medical radio capsule endoscopic system; Comprise capsule endoscope, image recorder and image workstation, be connected through radio communication between said capsule endoscope and the said image recorder, said image workstation be used for obtaining and analyzing stored at the image of image recorder; It is characterized in that; Said image workstation comprises, the image input block, and it is used for receiving the image that is stored in said image recorder; Hematochrome calculates the unit, is used for each color of pixel data value of image is converted to the hematochrome meansigma methods of the hematochrome value of hematochrome value and all pixels of computed image; Image is stressed the unit, is used to strengthen the contrast from the image of said image input block; Image-display units is used to show the image after the enhancing.
Said hematochrome calculates unit pack and draws together, and hematochrome conversion Calculation module is used for converting R, G, the calculating of B color data values of each pixel of image to the hematochrome value suitable with the hematochrome amount; Hematochrome mean value calculation module is used to calculate the hematochrome meansigma methods of all pixel hematochrome values of image.
Image stresses that the unit comprises that the hematochrome comparison module is used for the hematochrome value and the said hematochrome meansigma methods of each pixel are compared, and judges size; Hematochrome is stressed module, is used for the hematochrome value less than the hematochrome meansigma methods is reduced, and will increase greater than the hematochrome value of hematochrome meansigma methods, and obtains the emphasical value of corresponding hematochrome; The image transitions computing module is used for the hematochrome of each pixel is stressed that value calculating converts R ', G ', the B ' value of each pixel to.
Image-display units, the R ', G ', the B ' value that are used for according to each pixel generate and color display.
Said image input block comprises input module.
The said image input block of stating also comprises the image model modular converter, and it is used for the image transitions from said input module is become the RGB pattern.
The invention has the beneficial effects as follows: the present invention obtains the image of human gastrointestinal tract through capsule endoscope; And be sent to the outer image recorder of human body through wireless mode; The image of image workstation stresses that the unit reduces the hematochrome value less than the hematochrome meansigma methods in the image; To increase greater than the hematochrome value of hematochrome meansigma methods, and obtain the emphasical value of corresponding hematochrome, the image transitions computing module stresses that with the hematochrome of each pixel value calculating converts R ', G ', the B ' color data values of each pixel to; Image-display units generates R ', G ', the B ' color data values of each pixel and color display; Thereby make that the color at light position of the image that capsule endoscope photographs is more shallow, the color at dark position is darker, has improved the contrast of image; Make the contrast at image light color position and dark position bigger; And image light color position and dark position often reflect the pathological changes situation of human gastrointestinal tract, and therefore being convenient to the doctor can convenient, fast, clearly find light position and dark position in the image, have improved the efficient of doctor through image workstation discovery pathological changes image.
Description of drawings
Fig. 1 is a syndeton sketch map of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Referring to Fig. 1; A kind of medical radio capsule endoscopic system; Comprise capsule endoscope 1, image recorder 2 and image workstation; Be connected through radio communication between said capsule endoscope 1 and the said image recorder 2, said image workstation be used for obtaining and analyzing stored at the image of image recorder 2.Image workstation comprises that image input block 3, hematochrome calculate unit 13, image is stressed unit 12 and image-display units 11; Image input block 3 is used for receiving the image that is stored in said image recorder; Hematochrome calculates the hematochrome meansigma methods that the unit is used for each color of pixel data value of image is converted to the hematochrome value of hematochrome value and all pixels of computed image, and image stresses that unit 12 is used to strengthen the contrast from the image of said image input block; Image-display units 11 is used to show the image after the enhancing.Wherein, Image input block 3 comprises image input module 4 and image model modular converter 5; Image input module 4 is used for receiving the said image that is stored in image recorder 2, and image input module 4 can be a radio receiver, receives the view data in the image recorder through the radio reception mode; Can also be USB interface, this USB structure be connected with image recorder through the usb data line.Image model modular converter 5, it is used for image transitions is become the RGB pattern, and RGB is exactly the three primary colors of often saying, and R represents Red (redness), and G represents Green (green), and B represents Blue (blueness).
Said hematochrome calculates unit 13 and comprises hematochrome conversion Calculation module 6 and hematochrome mean value calculation module 7.Wherein, hematochrome conversion Calculation module is used for converting R, G, the calculating of B color data values of each pixel of image to the hematochrome value suitable with the hematochrome amount, and the conversion method of hematochrome conversion Calculation module 6 is:
Wherein,
(i j) is made as: image is (i, the hematochrome of j) locating in the position for IHB;
(i j) is made as: the R color data of image is (i, the intensity level of j) locating in the position for R;
(i j) is made as: the G color data of image is (i, the intensity level of j) locating in the position for G;
Hematochrome mean value calculation module 7; Be used to calculate the hematochrome meansigma methods of all pixel hematochrome values of image; The IHB that obtains through hematochrome conversion Calculation module 6 is as previously mentioned outputed to hematochrome mean value calculation module, supposes that image is with two-dimensional matrix Image (X, Y) expression; The X presentation video is in the size of line direction, and Y is the size of image at column direction.
Calculate the IHB meansigma methods:
.
Image stresses that unit 12 comprises hematochrome comparison module 8, the emphasical module 9 of hematochrome and image transitions computing module 10.Hematochrome comparison module 8 is used for the hematochrome value and the said hematochrome meansigma methods AVGIHB of each pixel are compared, and judges size.
Hematochrome is stressed module 9, will reduce less than the hematochrome value of hematochrome meansigma methods, will increase greater than the hematochrome value of hematochrome meansigma methods; And obtain corresponding hematochrome stress value IHB ' (i, j), said IHB ' (i; J) expression be positioned at the picture position (i, the hematochrome of j) locating pixel is stressed value; When color quality IHB (i, when j) being higher than hematochrome meansigma methods AVGIHB, obtain than original hematochrome value IHB (i, j) higher hematochrome stress value IHB' (i, j); If color quality IHB (i, when j) being lower than hematochrome meansigma methods AVGIHB, obtain than original hematochrome value IHB (i, j) lower hematochrome stress value IHB' (i, j).
If K is a variable coefficient; Hematochrome stresses that (i, accounting equation j) is value IHB':
.
Image transitions computing module 10 is used for the hematochrome of each pixel is stressed that value calculating converts R ', G ', the B ' color data values of each pixel to; Set α r (
); α g (
); α b (
) representes that respectively haemachrome is to R; G; The absorptance of B filter bag; Cr (i; J) (
) is picture position (i; J) the R color data component reinforcing coefficient of locating; Cg (i; J) (
) is picture position (i; J) the G color data component reinforcing coefficient of locating; Cb (i; J) (
) be the picture position (i, the B color data component reinforcing coefficient of j) locating:
Carry out
Next the used formula of said process is described, and these equations are followed Lambert-Beer
'The s rule.Suppose that IO is a light-source brightness, l is a pathways for vision length, c (i, j) and c' (i j) is position (i, the hemochrome concentration of j) locating.Suppose hemochrome concentration by c (i, j) become c' (i, in the time of j), R (i, j) become R' (i, j), by Lambert-Beer
'The s rule obtains following formula
By above-mentioned equation:
and
Can obtain following formula:
Here, following relation is arranged:
Therefore, can get following formula from formula
and
:
Image-display units 11 is according to R ', G ', the generation of B ' value and the color display of each pixel.
Capsule endoscope 1 is a prior art with image recorder 2, the capsule endoscope and the image recorder that can adopt Kingsoft, Chongqing science and technology (group) company to produce, and the model of its capsule endoscope is JS-ME-II, the model of image recorder is JS-ME-II.
The present invention obtains the image of human gastrointestinal tract through capsule endoscope; And be sent to the outer image recorder of human body through wireless mode; The image of image workstation stresses that the unit reduces the hematochrome value less than the hematochrome meansigma methods in the image; To increase greater than the hematochrome value of hematochrome meansigma methods, and obtain the emphasical value of corresponding hematochrome, the image transitions computing module stresses that with the hematochrome of each pixel value calculating converts R ', G ', the B ' color data values of each pixel to; Image-display units generates R ', G ', the B ' color data values of each pixel and color display; Thereby make that the color at light position of the image that capsule endoscope photographs is more shallow, the color at dark position is darker, has improved the contrast of image; Make the contrast at image light color position and dark position bigger; And image light color position and dark position often reflect the pathological changes situation of human gastrointestinal tract, and therefore being convenient to the doctor can convenient, fast, clearly find light position and dark position in the image, have improved the efficient of doctor through image workstation discovery pathological changes image.
Claims (6)
1. medical radio capsule endoscopic system; Comprise capsule endoscope, image recorder and image workstation; Be connected through radio communication between said capsule endoscope and the said image recorder; Said image workstation be used for obtaining and analyzing stored at the image of image recorder, it is characterized in that: said image workstation comprises
The image input block, it is used for receiving the image that is stored in said image recorder;
Hematochrome calculates the unit, is used for each color of pixel data value of image is converted to the hematochrome meansigma methods of the hematochrome value of hematochrome value and all pixels of computed image;
Image is stressed the unit, is used to strengthen the contrast from the image of said image input block;
Image-display units is used to show the image after the enhancing.
2. according to the described medical radio capsule endoscopic system of claim 1, it is characterized in that: said hematochrome calculates unit pack and draws together,
Hematochrome conversion Calculation module is used for converting R, G, the calculating of B color data values of each pixel of image to the hematochrome value suitable with the hematochrome amount;
Hematochrome mean value calculation module is used to calculate the hematochrome meansigma methods of all pixel hematochrome values of image.
3. according to the described medical radio capsule endoscopic system of claim 2, it is characterized in that: image stresses that the unit comprises,
The hematochrome comparison module is used for the hematochrome value and the said hematochrome meansigma methods of each pixel are compared, and judges size;
Hematochrome is stressed module, is used for the hematochrome value less than the hematochrome meansigma methods is reduced, and will increase greater than the hematochrome value of hematochrome meansigma methods, and obtains the emphasical value of corresponding hematochrome;
The image transitions computing module is used for the hematochrome of each pixel is stressed that value calculating converts R ', G ', the B ' value of each pixel to.
4. according to the described medical radio capsule endoscopic system of claim 3, it is characterized in that: image-display units, the R ', G ', the B ' value that are used for according to each pixel generate and color display.
5. according to the described medical radio capsule endoscopic system of claim 1, it is characterized in that: said image input block comprises input module.
6. according to the described medical radio capsule endoscopic system of claim 5, it is characterized in that: the said image input block of stating also comprises the image model modular converter, and it is used for the image transitions from said input module is become the RGB pattern.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1642467A (en) * | 2002-03-14 | 2005-07-20 | 奥林巴斯株式会社 | Endoscope image processing apparatus |
| CN1709196A (en) * | 2005-02-08 | 2005-12-21 | 重庆金山科技（集团）有限公司 | Method for controlling duplex multi-channel intelligent capsule digestive tract endoscope |
| EP1840824A1 (en) * | 2006-03-31 | 2007-10-03 | Fujifilm Corporation | Generation of spectroscopic images from an endoscopic image |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1642467A (en) * | 2002-03-14 | 2005-07-20 | 奥林巴斯株式会社 | Endoscope image processing apparatus |
| CN1709196A (en) * | 2005-02-08 | 2005-12-21 | 重庆金山科技（集团）有限公司 | Method for controlling duplex multi-channel intelligent capsule digestive tract endoscope |
| EP1840824A1 (en) * | 2006-03-31 | 2007-10-03 | Fujifilm Corporation | Generation of spectroscopic images from an endoscopic image |
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Application publication date: 20120808 |