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Ultrasonic imaging device and image processing device

A camera device, ultrasonic technology, applied in image data processing, ultrasonic/sonic/infrasound equipment control, ultrasonic/sonic/infrasonic diagnosis, etc., can solve the problem of unclear noise removal, and achieve the effect of suppressing artifacts

Pending Publication Date: 2021-10-12
HITACHI HEALTHCARE MFG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the technology of Patent Document 2, it is not clear to what extent the noise of various frequency components contained in the received signal can be removed.

Method used

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  • Ultrasonic imaging device and image processing device
  • Ultrasonic imaging device and image processing device
  • Ultrasonic imaging device and image processing device

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0048] use Figure 1 ~ Figure 3 The configuration of the ultrasonic imaging device 100 according to Embodiment 1 will be described.

[0049] The ultrasonic imaging device 100 of the present embodiment includes an ultrasonic imaging device main body 101 , and an ultrasonic probe 102 , a display device 104 , and an operation unit 93 are connected to the ultrasonic imaging device main body 101 . The ultrasonic probe 102 includes a plurality of ultrasonic elements arranged in a row.

[0050] The ultrasonic imaging device main body 101 includes a transmission beamformer (transmission control unit) 91, a reception beamformer 105, an evaluator 107, a smoothing processing unit 108-1, a filter processing unit 106, a smoothing processing unit 108-2, an image processing unit 109 and the control unit 92.

[0051] The transmission beamformer 91 outputs a transmission signal to the ultrasonic elements of the ultrasonic probe 102 to control transmission.

[0052] The reception beamformer ...

Embodiment approach 2

[0074] use Figure 5 (a), (b-1)~(b-3) and Figure 6 (a) and (b) describe the ultrasonic imaging device according to the second embodiment.

[0075] The structure of the ultrasonic imaging device of Embodiment 2 is as follows Figure 5 As shown in (a), it is the same as Embodiment 1, but when the evaluator 107 sets the generated signal characteristic value and the division of the filter control signal 202, as Figure 5 (b-1) is different from Embodiment 1 in that adjacent divisions partially overlap each other.

[0076] The filter processing unit 106 selects the filter 206 based on the filter control signal 202 for each division, and processes the ultrasonic signal corresponding to the division, thereby as Figure 5 (a) and Figure 5 The filtered ultrasonic signal (hereinafter referred to as the filtered ultrasonic signal) 207 is obtained as in (b-2). Since the filtered ultrasonic signal 207 is obtained for each division, two signals with different values ​​processed by di...

Embodiment approach 3

[0082] use Figure 7 An ultrasonic imaging device according to Embodiment 3 will be described.

[0083]The ultrasound imaging device according to Embodiment 3 includes a synthesis processing unit 111 which weights and synthesizes the ultrasound signal 201 and the filtered ultrasound signal 204 .

[0084] The image processing unit 109 generates an image using the ultrasonic signal synthesized by the synthesis processing unit 111 .

[0085] In addition, the console 103 is connected to the synthesis processing unit 111 , and the user can input weights for synthesizing the signals from a user interface such as a touch panel and a mouse included in the console 103 .

[0086] Thus, similarly to Embodiment 1, while the evaluator 107 is configured to generate an adaptive filter control signal corresponding to the ultrasonic signal, it is possible to adjust and reflect the filtered ultrasonic signal 204 in accordance with the user's preference. Displays the intensity of the image.

...

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Abstract

The invention provides an ultrasonic imaging apparatus and an image processing apparatus. Provided is an ultrasonic imaging device capable of appropriately removing noise for each tissue from a received signal of a biological tissue in which a plurality of tissues are complexly entangled, and of suppressing artifacts even at the boundary of the tissue. The evaluator receives one or more time-series ultrasonic signals obtained by transmitting ultrasonic waves from the ultrasonic probe to the subject and then receiving the ultrasonic waves from the subject by the ultrasonic probe. A filter control signal for setting a characteristic value of a filter for removing noise included in the ultrasonic signal is generated with respect to the direction of the time series of the ultrasonic signal. The filter processing unit processes the ultrasonic signal having the corresponding signal characteristic value by means of a filter having a characteristic value set on the basis of the filter control signal, thereby removing noise. A smoothing processing unit for smoothing the distribution of the filter control signal is disposed between the evaluator and the filter processing unit.

Description

technical field [0001] The present invention relates to an ultrasonic imaging device, and more particularly to a device capable of generating images with reduced noise even for complex tissues such as living bodies. Background technique [0002] Known are devices that transmit ultrasonic waves to an object from an ultrasonic probe, receive the ultrasonic waves scattered, reflected, etc. inside the object again by the ultrasonic probe, and generate images of the inside of the object from the received signals obtained, and devices that inspect the interior of the object for defects, etc. . In these devices, if noise is included in the acquired received signal, there will be problems such as degradation of the image quality of the generated image, misjudgment of a non-defect part of the object as a defect, and the like. [0003] Therefore, for example, in Patent Document 1, an ultrasonic flaw detection device is proposed, which calculates the feature quantity of the received s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00
CPCA61B8/5215A61B8/5269G16H40/63G16H30/40G16H50/20A61B8/5207G06T5/002G06T5/20A61B8/14A61B8/54G06T2207/20081G06T2207/10132
Inventor 山中一宏池田贞一郎藤井信彦广岛美咲
Owner HITACHI HEALTHCARE MFG LTD
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