KR20020071377A - Device for detecting 3 dimension image using positioning sensor - Google Patents

Abstract

PURPOSE: A three-dimensional image detecting apparatus using a position sensor is provided to detect a three-dimensional image by mounting a position sensor in an existing ultrasonic diagnosis system. CONSTITUTION: A position sensor(100) is engaged to one end of an ultrasonic probe(10) and senses a position according to the movement of the ultrasonic probe. A position detecting portion(200) detects the moving direction and shift of the ultrasonic probe upon receipt of a position sensing signal from the position sensor. A graphic processing portion(300) combines a plurality of two-dimensional image data according to the position of the ultrasonic probe upon receipt of the position of the ultrasonic probe from the position sensor and the two-dimensional image data from an image converting portion(30), and then displays a three-dimensional image.

Description

3D image detection device using position sensor {DEVICE FOR DETECTING 3 DIMENSION IMAGE USING POSITIONING SENSOR}

The present invention relates to a three-dimensional image detection apparatus using a position sensor, in particular, by mounting the position sensor in a conventional two-dimensional ultrasonic diagnostic system, a three-dimensional image using a position sensor to detect the three-dimensional image It relates to a detection device.

Ultrasonic sensors (probes, probes, etc.) used in medical (diagnostic) ultrasound diagnostic systems that have been commercialized so far are mostly configured to obtain only two-dimensional cross-sectional images. As the method (which is one of the medical diagnostic methods) emerges, the 3D ultrasound system itself is introduced and replaced.

However, in using the three-dimensional diagnostic system to implement the new diagnostic method as described above, an ultrasonic diagnostic system designed to obtain three-dimensional stereoscopic images must use a special transducer designed for three-dimensional.

That is, the existing three-dimensional transducers exist in two types. The first method is to design the ultrasonic sensor itself built in the transducer in a dual structure and to acquire three-dimensional images by three-dimensionally arranging them. The servo motor is built by remodeling the 2D transducer and the 2D ultrasonic wave sensor is driven at a constant displacement angle in a controlled state to acquire multiple 2D images and obtain 3D images from them. There was.

However, the three-dimensional dedicated transducer as described above should have a separate dual signal processing device or add a motor driving control program, thereby requiring expansion of the overall system and expansion of processing capacity. There is a problem that it is expensive to purchase because it is expensive compared to the probe.

In addition, since the existing two-dimensional transducer can not be used to introduce the three-dimensional ultrasound diagnostic system, there was a problem that there is a variety of inconveniences in the processing of the conventional two-dimensional ultrasound diagnostic system.

Accordingly, the present invention is to solve the above problems, the object of the present invention is to mount a position sensor to a conventional two-dimensional ultrasonic diagnostic system used in the two-dimensional cross-sectional image and the position after detecting the two-dimensional The present invention provides a three-dimensional image detection apparatus using a position sensor to display a three-dimensional image by combining a cross-sectional image.

In order to achieve the above object, the three-dimensional image detection device using the position sensor of the present invention, the ultrasonic transducer to be moved by the user's operation, and is fastened to the center of the ultrasonic transducer to transmit and receive ultrasonic waves to output the detection signal In the two-dimensional ultrasound diagnostic system having an ultrasonic sensor and an image conversion unit for receiving the detection signal from the ultrasonic sensor and converting the two-dimensional image data,

A position sensor fastened to one side of the ultrasonic probe to sense a position according to the movement of the ultrasonic probe;

A position detector which receives a position detection signal from the position sensor and detects a moving direction and a displacement of the ultrasonic probe; And

And a graphic processor configured to receive a position and two-dimensional image data of the ultrasonic transducer from the position detector and the image converter, and then combine a plurality of two-dimensional image data according to the position of the ultrasonic transducer and display a three-dimensional image. do.

1 is a block diagram showing a 3D image detection apparatus using a position sensor according to an embodiment of the present invention;

FIG. 2A is an exemplary view illustrating a case in which a retrospective scan is performed using an ultrasonic sensor in a 3D imaging apparatus using a position sensor according to an embodiment of the present invention; FIG.

2B is an exemplary view illustrating a plurality of cross-sectional images acquired by an image converter when an ultrasonic sensor and a position sensor are used in a 3D imaging apparatus using a position sensor according to an embodiment of the present invention;

2C is an exemplary view showing a 3D image in a 3D image apparatus using a position sensor according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: position sensor 110: light generating unit

120: light sensor 200: position detection unit

300: graphics processing unit

Hereinafter, a 3D image detection apparatus using a position sensor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram illustrating an apparatus for detecting a 3D image using a position sensor, and FIG. 2A is an exemplary diagram illustrating a case in which a retrospective scan is performed using an ultrasonic sensor in a 3D apparatus using a position sensor.

In addition, FIG. 2B is an exemplary view illustrating a plurality of cross-sectional images acquired by an image converter when an ultrasonic sensor and a position sensor are used in the 3D imaging apparatus using a position sensor, and FIG. 2C is a 3D imaging apparatus using a position sensor. An example diagram showing a three-dimensional image.

As shown in FIG. 1, the present invention includes an ultrasonic transducer 10, an ultrasonic sensor 20, an image converter 30, a position sensor 100, a position detector 200, and a graphic processor 300. The position sensor 100 includes a light generating unit 110 and an optical sensor 120, and the ultrasonic probe 10 serves to move a portion of a plurality of unspecified subjects (human body) by a user's manipulation. do.

In addition, the ultrasonic sensor 20 is fastened to the center of the ultrasonic transducer 10 and transmits / receives ultrasonic waves to output a detection signal, and the image converter 30 from the ultrasonic sensor 20 It receives the detection signal and converts it into 2D image data.

Subsequently, the position sensor 100 is fastened to one side of the ultrasonic probe 10 to detect a position according to the movement of the ultrasonic probe 10, and the position sensor 200 detects the position sensor 100. It receives a position detection signal from the serves to detect the movement direction and displacement of the ultrasonic transducer 10.

In addition, the graphic processor 300 receives the position of the ultrasonic probe 10 and the 2D image data from the position detector 200 and the image converter 30, and outputs a plurality of 2D image data to the ultrasonic probe 10. ), And combines them according to their position to display a 3D image.

On the other hand, the light generating unit of the position sensor 100 serves to generate the light containing the interference signal, the light sensor receives the light that is reflected back from the light generated from the light generating unit reflects the corresponding Detect location.

Hereinafter, an operation process of the 3D image detection apparatus using the position sensor configured as described above will be described.

When an unspecified number of patients visit a hospital for an ultrasound diagnosis, a user using an ultrasound diagnosis system moves the ultrasound probe 10 in the patient's posterior region as shown in FIG. 1.

Then, as illustrated in FIG. 2A, the ultrasonic sensor 20 coupled to the center of the ultrasonic probe 10 transmits / receives an ultrasonic signal to output a detection signal, and the position sensor 100 may detect the ultrasonic probe ( Is fastened to one side of the left / right side of 10) detects the position according to the movement of the ultrasonic transducer 10 and outputs a corresponding detection signal.

In this case, detecting the position of the ultrasonic transducer 10 by the position sensor 100 generates light including an interference signal in the light generator 110 of the position sensor 100, the optical sensor 120. ) Detects the movement position of the ultrasonic probe 10 by receiving the light returned by the light generated from the light generator 110 reflected on the patient's posterior part.

Subsequently, the image conversion unit 30 receives the detection signal from the ultrasonic sensor 20, converts the two-dimensional cross-sectional image data into output as shown in FIG. 2B, and outputs the position sensor 100 in the position detection unit 200. After receiving the position detection signal from) to analyze the image and calculates the movement direction and displacement of the ultrasonic transducer 10 to detect the position.

Then, the graphic processor 300 receives a plurality of two-dimensional cross-sectional images and position data obtained from the image converter 30 and the position detector 200, and two-dimensionally according to the position movement of the ultrasonic probe 10. After combining the images, the 3D image data is detected and the 3D image is displayed so that the patient and the user can view the 3D image according to the combination of the images.

That is, when detecting the 3D image in more detail as described above, the two-dimensional plane data acquired by the ultrasonic transducer 10 is stored as a pixel (Pixel), this value is converted into Cartesian coordinates.

Then, a three-dimensional image is obtained by combining various two-dimensional plane images acquired by the ultrasonic probe 10 according to positions, and at this point, an accurate three-dimensional image is obtained by knowing the acquisition position and rotation angle of each image. Can be.

As described above, in the three-dimensional image detection apparatus using the position sensor of the present invention, a two-dimensional cross-sectional image is acquired after acquiring various two-dimensional cross-sectional images by attaching a position sensor to a conventional two-dimensional ultrasonic diagnostic system. By simultaneously detecting and combining them into 3D images, it is possible to reduce the cost of using expensive 3D ultrasound sensors and to reduce the cost of medical treatment, thereby providing more convenient medical services to a large number of unspecified patients. There is.

Claims (2)

An ultrasonic transducer moving by a user's operation, an ultrasonic sensor which is fastened to a center of the ultrasonic transducer to transmit / receive ultrasonic waves, and an image converter which receives a detection signal from the ultrasonic sensor and converts the detected signal into two-dimensional image data In the two-dimensional ultrasound diagnostic system, A position sensor fastened to one side of the ultrasonic probe to sense a position according to the movement of the ultrasonic probe; A position detector which receives a position detection signal from the position sensor and detects a moving direction and a displacement of the ultrasonic probe; And And a graphic processor configured to receive a position and two-dimensional image data of the ultrasonic transducer from the position detector and the image converter, and then combine a plurality of two-dimensional image data according to the position of the ultrasonic transducer and display a three-dimensional image. 3D image detection device using a position sensor. According to claim 1, wherein the position sensor is a light generating unit for generating light containing the interference signal, And 3. The apparatus of claim 3, further comprising an optical sensor configured to reflect light generated from the light generator from the subject and receive light reflected from the subject to detect a corresponding position.