TW201503678A - Medical grade calibration system for display device and method thereof - Google Patents

Abstract

The invention relates to a medical grade calibration system for a display device and a method thereof. The system comprises a non-medical grade display device, an optical measuring device for measuring image signal source parameters of the non-medical grade display device, and a drive device. The drive device could include a storage unit for storing the image signal source parameters and a calibration module electrically connected with the storage unit. Thereby an optical signal calibration parameter can be generated by the calibration module according to image signal source parameters corresponding to the medical digital image specifications. Thus the images of the non-medical grade display device can meet the specifications of medical digital images through calibration, compensation and adjustment. It has significant effects for improving the quality of medical diagnostic services, lowering the costs of medical services operations and environment protection.

Description

Display device medical grade correction system and method thereof

The present invention relates to a medical device calibration system for a display device, and more particularly to a system and method for correcting and adjusting non-medical-grade display devices to meet medical digital image specifications.

According to the advancement of computer technology, digital medical image inspection can now be performed, for example, digital X-ray (DX), computed tomography (CT), magnetic resonance (MR), endoscope (Endoscope), ultrasonic (US), Numeral medicine (NM) and other medical instruments can obtain multi-angle images of internal organ lesions without invading the patient's body. In clinical application, it can not only relieve the patient's pain, but also help the doctor to accurately diagnose, enabling the medical community to By using computer technology in medical equipment, it can achieve more advanced medical effects; for example, by using 3D computer imaging technology, ultrasonic medical instruments can depict the appearance and shape of the fetus in the womb of pregnant women, and use its digital image. The screen allows the physician to quickly understand the size of the fetus, the location of the placenta implantation, or the presence of obvious abnormalities in the appearance of the fetus to assist the physician's diagnosis.

Although the above-mentioned non-invasive (or non-destructive) medical image capturing method has the above advantages, when the image quality is poor, it may cause a misjudgment of the condition, which seriously affects the quality of the medical service; therefore, currently The global medical community has jointly developed a Digital Imaging Communication Sin Medicine (DICOM) specification that enables all medical device manufacturers to manufacture medical instruments in accordance with the DICOM specifications in order to match image quality and reduce medical image interpretation errors. The quasi-problem, for example, when the contrast is insufficient, causing the bright portion to be inconspicuous or the dark portion to be distorted, will seriously affect the result of the physician's diagnosis; however, the above-mentioned display device conforming to the medical digital image communication specification, each of which is priced It is hundreds of thousands of times, and after long-term use, it may also cause the attenuation of electrical and optical properties of components inside the panel, which not only causes the brightness of the screen to decrease or the color to be different, but even worse. The standard requirements affect the results of the physician's diagnosis; however, based on the operating cost considerations, the medical display devices that are inconsistent with the brightness and chromaticity of the factory are not regularly updated or upgraded, and even the replacement cannot be performed according to the annual The plan is carried out so that the medical staff can still diagnose the patient using a display device that does not meet the medical specifications.

Therefore, the inventor applied for a patent for invention on September 25, 2001, "Color Compensation System for Display Devices" (Application No. 101135119); however, the original system design can automatically make each use The end processing device obtains the same effect as the brightness and chromaticity of the light emitted from the factory to avoid the error of the manual processing device due to the error of the manual adjustment of the colorimeter, but there are still some unsatisfactory points, such as In general, the display device cannot accurately meet the lack of conformity with the medical specification display device and the market acceptance; the inventor of the present invention is the original intention of the creation and improvement, and strives for excellence and perfection, and is determined to make further improvements. After thinking and experimenting, the invention was finally developed.

Nowadays, the inventor is in view of the fact that the cost of the existing medical-grade display device is too expensive, and the medical staff must still use the display device that does not meet the medical specifications to diagnose the patient and the like, so that it is a tireless spirit and is enriched by it. The expertise and years of practical experience have been used to improve and to develop the present invention.

The main object of the present invention is to provide an optical measuring device for measuring an image signal source parameter of a non-medical-grade display device, thereby comparing with a calibration module in a driving device to generate an optical signal correction parameter, so that the non-medical-level display device is The image can be adapted to the system and method of medical digital image specifications by correcting the compensation adjustment.

In order to achieve the above-mentioned implementation, the present inventors propose a medical device calibration system for a display device, comprising a non-medical-grade display device, an optical measuring device for measuring an image signal source parameter of the non-medical-grade display device, and a The driving device can include a storage unit for storing image signal source parameters, and a correction module electrically connected to the storage unit, wherein the calibration module can correspond to the medical digital image specification according to the image signal source parameter. And generating an optical signal correction parameter, so that the image of the non-medical display device conforms to the medical digital image specification through the correction compensation adjustment; wherein the image of the non-medical display device can be an X-ray image, an ultrasound image, or a computer Tomography, magnetic resonance imaging, positron photographic imaging, angiography, cardiovascular photography, dental photography, screen fluoroscopy, mammography, gamma photography, single photon photography, nuclear magnetic resonance, fluorescent angiography, medical thermal imaging Wait for one of them or its composite application.

In an embodiment of the invention, the image signal source parameter may include a group consisting of optical parameters such as spectrum, chromaticity, optical deviation value, brightness, contrast, color temperature, gamma, and grayscale value; and the optical signal Calibration parameters may include backlight parameters, brightness, contrast, color temperature, grayscale value, gamma, RGB gain value, RGB offset, saturation, hue, color intensity, color compensation parameters, color conversion parameters, and color conversion. One of the formulas or a combination of two or more.

In an embodiment of the invention, the driving device can be a combination of a computer system and a software, and the driving device can be electrically connected to the non-medical display device through a wired or wireless manner.

In addition, the present invention further provides a medical device calibration method for a display device, first measuring an unmedical display device by an optical measuring device, and storing the measured image signal source parameter to a storage unit of a driving device; And using a calibration module electrically connected to the storage unit to collect image signal source parameters from the storage unit, and then comparing with the medical digital image specifications; finally, generating an optical signal correction parameter through the calibration module to enable the non-medical display device The image conforms to the medical digital image specification by adjustment; thereby, the problem that the existing medical display device is too expensive can be solved, so that the medical institution can conform to the medical digital position through the calibration adjustment of the present invention by the general display device. Image specifications prevent medical staff from using diagnostic devices that do not meet medical specifications to diagnose patients, which has a significant effect on improving the quality of medical diagnostic services, reducing the cost of medical services and environmental protection.

(1)‧‧‧Non-medical display devices

(2) ‧‧‧Optical measuring device (3)‧‧‧ drive

(31)‧‧‧Storage unit (32)‧‧‧ calibration module

S1‧‧‧Image signal source parameters

S2‧‧‧ optical signal correction parameters

(P1) ‧ ‧ Step 1 (P2) ‧ ‧ Step 2

(P3)‧‧‧Step three

FIG. 1 is a block diagram showing the electrical relationship configuration of a medical grade correction system of a display device according to a preferred embodiment of the present invention;

FIG. 2 is a block diagram showing the electrical relationship configuration of the medical grade correction system of the display device according to the second preferred embodiment of the present invention;

FIG. 3 is a perspective view showing the stereoscopic appearance of a medical level correction system of a display device according to a preferred embodiment of the present invention;

Fourth: Flow chart of steps of the medical level correction method of the display device of the present invention

Fifth: The present invention adjusts the non-medical-grade display device to conform to the curve of the medical digital image specification.

The object of the present invention and its structural and functional advantages will be explained in conjunction with the specific embodiments according to the structure shown in the following drawings, so that the reviewing committee can have a more in-depth and specific understanding of the present invention.

First, please refer to the first figure, which is a block diagram showing the electrical relationship configuration of the medical grade correction system of the display device according to a preferred embodiment of the present invention. It should be noted that in the description of the following embodiments, it should be understood that when When a device is electrically connected to a unit, a device is electrically connected to a device, or a unit is electrically connected to a unit, it may be wired or wirelessly connected, and the medical device correction system of the display device of the present invention includes :

A non-medical-grade display device (1), which can be a corresponding television, projector, display (such as a CRT display, a liquid crystal display, a plasma display, a light-emitting display) Light-emitting diodes and organic LED displays, active-matrix organic light-emitting diodes, rear projection displays, etc. A display device of a device (such as a screen of a mobile phone), a display device of a mobile device (such as a screen for satellite navigation), a display device of a professional device (such as a screen of an oscilloscope), and the like, in this embodiment, a liquid crystal display is taken as an example;

An optical measuring device (2) for measuring and outputting an image signal source parameter S1 of the non-medical display device (1), wherein the image signal source parameter S1 includes a spectrum, a chromaticity, an optical deviation value, a brightness, a group of contrast, color temperature, gamma, and grayscale values; in addition, the image of the non-medical display device (1) is a medical image, including but not limited to X-ray images, ultrasound images, computed tomography (CT) imaging, magnetic resonance imaging (MRI) imaging, positron photography (PET) imaging, angiography, cardiovascular photography, dental photography, screen fluoroscopy, mammography, gamma photography, single photon photography (SPECT), nuclear magnetic resonance (NMRI), fluorescent blood vessel development, one of medical thermal imaging or a composite application thereof;

A driving device (3), which can be a combination of a computer system and a software, includes a storage unit (31) for storing an image signal source parameter S1, and a correction module electrically connected to the storage unit (31) ( 32) The calibration module (32) generates an optical signal correction parameter S2 according to the image signal source parameter S1 corresponding to the medical digital image specification, so that the image of the non-medical display device (1) can be adjusted by adjusting the compensation adjustment Medical digital image specification; wherein the medical digital image specification can be built in the driving device (3) or the optical measuring device (2), which is not limited herein; further, the optical signal correction parameter S2 corrects the non-medical display device (1) The image may be transmitted to the non-medical display device (1), for example, by the optical signal correction parameter S2 generated by the correction module (32) to adjust the image conforming to the medical digital image specification, or prior to The image of the driving device (3) is adjusted to conform to the medical digital image specification and then transmitted to the non-medical display device (1) The optical signal correction parameter S2 of the present invention may include backlight parameters, brightness, contrast, color temperature, grayscale value, gamma, RGB gain, RGB offset, saturation. (Saturation), Hue, Intensity, color compensation parameters, color conversion parameters, and color conversion formulas, or a combination of two or more; please refer to the second figure, the present invention The schematic diagram of the electrical relationship configuration of the medical device correction system of the display device according to the second preferred embodiment is different from the above-mentioned embodiment in that the driving device (3) is electrically connected to the non-medical display device (1). connection.

In summary, when the medical grade correction system of the display device of the present invention is implemented, please refer to the third and fourth figures, which are respectively a schematic diagram of the stereoscopic appearance of the medical grade correction system of the display device and a flow chart of the correction method steps. The calibration methods of the invention include:

Step 1 (P1): measuring a non-medical-grade display device (1) by an optical measuring device (2), and storing the measured image signal source parameter S1 to a storage unit of a driving device (3) ( 31); wherein the optical measuring device (2) can be, for example but not limited to, a display color analyzer (model CA210) manufactured by Minota Corporation of Japan;

Step 2 (P2): collecting an image signal source parameter S1 from the storage unit (31) by using a calibration module (32) electrically connected to the storage unit (31), and storing it, and comparing with the medical digital image specification; The medical digital image specification can be the Medical Digital Image Communication (DICOM) specification, and DICOM is an agreement for transmitting medical images and related information. It regulates the image and information exchange formats of various medical imaging devices in order to achieve various The purpose of medical image data sharing; it is worth noting that DICOM medical digital image specifications are for convenience of description, and are not limited to the examples, and those skilled in the art know that the above medical digital image specifications can be other Image specifications (such as a specific format of HL7 (Health Level Seven)) without affecting the implementation of the present invention;

Step 3 (P3): the calibration module (32) generates an optical signal correction parameter S2, so that the image of the non-medical display device (1) can be adjusted to conform to the medical digital image specification; wherein the correction module ( 32) The generated optical signal correction parameter S2 can be adjusted to conform to the medical digital image specification by transmitting to the non-medical display device (1), or the image is adjusted before the driving device (3) The medical digital image specification is transmitted to the non-medical display device (1); however, it must be noted that the optical signal correction parameter S2 of the present invention is not characterized by the present invention, for example, the image signal source parameter S1 and the medical image can be utilized. The digital image specification uses a linear function of its statistical relationship to perform interpolation and extrapolation, or uses a nonlinear function of its statistical relationship to perform interpolation and extrapolation. Those skilled in the art will know the optical signal of the present invention. The adjustment calculation method of the calibration parameter S2 can have many different embodiments without affecting the implementation of the present invention; Referring to the fifth figure, the schematic diagram of adjusting the non-medical display device (1) to conform to the medical digital image specification is the measurement of the optical measuring device (2) on a non-medical display device (1). The brightness value (which may also be an optical characteristic value such as contrast, color temperature, and grayscale value), and an optical signal correction parameter S2 is generated by the correction module (32), so that the image of the non-medical display device (1) is completely in line with the medical condition. The digital image specification; wherein the dotted line segment "---" indicates the uncorrected JND optical curve, and the thick solid line segment indicates the corrected JND optical curve, the horizontal axis is the JND value, and the vertical axis is the luminance value (Luminance). It is obvious that before the correction, the JND optical curve does not conform to the DICOM specification, and after the medical grade correction of the present invention, the optical curve of the solid line segment completely conforms to the DICOM specification; it is worth noting that the difference (JND) is the difference in brightness between the human eye. The ability of the average person to be sensitive to high brightness changes is better. For low sensitivity to poor luminance variation.

In summary, the medical device calibration system and method of the display device of the present invention can achieve the intended use efficiency by the above disclosed embodiments, and the present invention has not been disclosed before the application, and has been fully met. The provisions and requirements of the Patent Law.爰Issuing an application for a patent for invention in accordance with the law, and asking for a review, and granting a patent, is truly sensible.

The illustrations and descriptions of the present invention are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; those skilled in the art, which are characterized by the scope of the present invention, Equivalent variations or modifications are considered to be within the scope of the design of the invention.

(1)‧‧‧Non-medical display devices

(2)‧‧‧Optical measuring device

(3) ‧‧‧Drives

(31)‧‧‧ storage unit

(32)‧‧‧ Calibration Module

S1‧‧‧Image signal source parameters

S2‧‧‧ optical signal correction parameters

Claims (10)

A medical grade correction system for a display device, comprising:
a non-medical grade display device;
An optical measuring device for measuring and outputting an image signal source parameter of the non-medical display device; and a driving device comprising a storage unit for storing the image signal source parameter, and an electrical property of the storage unit a calibration module, the calibration module generates an optical signal correction parameter according to the image signal source parameter corresponding to the medical digital image specification, so that the image of the non-medical display device conforms to the medical digital image by correcting compensation adjustment specification. The medical device calibration system of the display device according to claim 1, wherein the image signal source parameter comprises a spectrum, a chromaticity, an optical deviation value, a brightness, a contrast, a color temperature, a gamma, and a grayscale value. Group. The medical device calibration system of the display device according to claim 1, wherein the optical signal correction parameter comprises a backlight parameter, a brightness, a contrast, a color temperature, a grayscale value, a gamma, an RGB gain value, an RGB offset, A combination of one or more of saturation, hue, color intensity, color compensation parameters, color conversion parameters, and color conversion formulas. The display device medical grade correction system according to claim 1, wherein the drive device is electrically connected to the non-medical grade display device by wire or wirelessly. The medical device correction system of the display device according to claim 1, wherein the driving device is a combination of a computer system and a software. The medical device calibration system of the display device according to claim 1, wherein the image of the non-medical display device is an X-ray image, an ultrasound image, a computed tomography image, a magnetic resonance image, a positron image, One of or a composite application of angiography, cardiovascular photography, dental photography, screen fluoroscopy, mammography, gamma photography, single photon photography, nuclear magnetic resonance, fluorescent blood vessel development, medical thermal imaging. A medical device calibration method for a display device, comprising the following steps:
Step 1: measuring a non-medical-grade display device by using an optical measuring device, and storing the measured image signal source parameter to a storage unit of a driving device;
Step 2: collecting the image signal source parameter from the storage unit by using a calibration module electrically connected to the storage unit, storing the image signal source parameter, and comparing with the medical digital image specification; and step 3: the calibration module generates an optical signal The parameters are corrected such that the image of the non-medical display device conforms to the medical digital image specification by adjustment. The medical device calibration method of the display device according to claim 7, wherein the image signal source parameter comprises a spectrum, a chromaticity, an optical deviation value, a brightness, a contrast, a color temperature, a gamma, and a grayscale value. Group. The medical device calibration method of the display device according to the seventh aspect of the invention, wherein the optical signal correction parameter comprises a backlight parameter, a brightness, a contrast, a color temperature, a grayscale value, a gamma, an RGB gain value, an RGB offset, A combination of one or more of saturation, hue, color intensity, color compensation parameters, color conversion parameters, and color conversion formulas. The medical device calibration method of the display device according to claim 7, wherein the image of the non-medical display device is an X-ray image, an ultrasound image, a computed tomography image, a magnetic resonance image, a positron image, One of or a composite application of angiography, cardiovascular photography, dental photography, screen fluoroscopy, mammography, gamma photography, single photon photography, nuclear magnetic resonance, fluorescent blood vessel development, medical thermal imaging.