WO2012056695A1 - Dispositif d'affichage d'image tridimensionnelle, procédé et programme associés - Google Patents

Dispositif d'affichage d'image tridimensionnelle, procédé et programme associés Download PDF

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Publication number
WO2012056695A1
WO2012056695A1 PCT/JP2011/005984 JP2011005984W WO2012056695A1 WO 2012056695 A1 WO2012056695 A1 WO 2012056695A1 JP 2011005984 W JP2011005984 W JP 2011005984W WO 2012056695 A1 WO2012056695 A1 WO 2012056695A1
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WIPO (PCT)
Prior art keywords
image
eye
radiation
stereoscopic
different
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Application number
PCT/JP2011/005984
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English (en)
Japanese (ja)
Inventor
孝夫 桑原
靖子 八尋
大田　恭義
玲 長谷川
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富士フイルム株式会社
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Publication of WO2012056695A1 publication Critical patent/WO2012056695A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/502—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of breast, i.e. mammography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/022—Stereoscopic imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/46—Arrangements for interfacing with the operator or the patient
    • A61B6/461—Displaying means of special interest
    • A61B6/466—Displaying means of special interest adapted to display 3D data
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5205—Devices using data or image processing specially adapted for radiation diagnosis involving processing of raw data to produce diagnostic data
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment

Definitions

  • the present invention relates to a stereoscopic image display apparatus, method, and program for displaying a stereoscopic image using two images, a right-eye image and a left-eye image.
  • stereoscopic viewing can be performed using parallax by displaying a plurality of images in combination.
  • a stereoscopically viewable image hereinafter referred to as a stereoscopic image or a stereo image
  • a stereoscopic image or a stereo image is generated based on a plurality of images having parallax obtained by photographing the same subject from different positions.
  • Such generation of stereoscopic images is used not only in the fields of digital cameras and televisions but also in the field of radiographic imaging. That is, the subject is irradiated with radiation from different directions, the radiation transmitted through the subject is detected by the radiation image detector, and a plurality of radiation images having parallax are obtained, and based on these radiation images A stereoscopic image is generated. And by generating a stereoscopic image in this way, a radiographic image with a sense of depth can be observed, and a radiographic image more suitable for diagnosis can be observed. (For example, see Patent Document 1)
  • a technique may be used in which diagnosis is performed by variously changing the appearance of an image by performing different frequency enhancement processing and dynamic range compression processing on the image. If a plurality of images obtained by performing different image processing on an image are generated, the time for confirming the increase also increases in proportion to the number of images.
  • the present invention provides a stereoscopic image display apparatus, method, and program for displaying a stereoscopic image using two images, a right-eye image and a left-eye image, in which the above problems are alleviated.
  • the purpose is to do.
  • the present applicant has found that, in stereoscopic display, stereoscopic display is possible even if the image quality of the left and right images does not match, and the characteristics of both images can be recognized individually.
  • the present invention is based on this finding, and the stereoscopic image display device of the present invention is a stereoscopic image display device that displays a stereoscopic image using two images of a right-eye image and a left-eye image. Image processing means for performing different image processing on each of the right-eye image and the left-eye image is provided.
  • different image processing can be different frequency enhancement processing or different dynamic range compression processing.
  • the degree of difference from each other is not limited to performing different degrees of image processing on both the right-eye image and the left-eye image, and only one image is subjected to image processing (that is, the degree of image processing). Including 0).
  • the image processing means may be configured such that when the right-eye image and the left-eye image are radiographic images captured by irradiating radiation from different imaging angles with respect to the detection surface of the radiation detector, It is preferable that the degree of image processing of the radiographic image be higher than the degree of image processing of the radiographic image having the larger imaging angle.
  • the “imaging angle” means an angle formed by the direction perpendicular to the detection surface of the radiation detector and the imaging direction.
  • the stereoscopic image display method of the present invention is a stereoscopic image display method for displaying a stereoscopic image using two images, a right-eye image and a left-eye image, for each of the right-eye image and the left-eye image. It is characterized in that different image processes are performed.
  • the two images for stereoscopic viewing are images acquired by photographing the same subject from different photographing angles
  • the content of both is a parallax corresponding to the distance in the depth direction for each subject.
  • the display contents are substantially the same except that the display position is slightly shifted.
  • the present applicant has found that, in stereoscopic display, stereoscopic display is possible even if the image quality of the left and right images does not match, and the characteristics of both images can be recognized individually. .
  • the right-eye image and the left-eye image are displayed. If different image processing is applied to each of them, two types of images with different image processing contents can be displayed simultaneously when observing by changing the appearance of the image from various perspectives. The image can be confirmed efficiently.
  • the purpose of applying different image processing to each of the right-eye image and the left-eye image is to allow the user to check the right and left for each user in addition to the above-described purpose. It is also possible to eliminate the difference in the left and right appearance caused by the difference in visual acuity. Specifically, when the eyesight is low, visibility can be improved by increasing the sharpness and contrast of the image, so the left and right eyesight information is acquired for each user, and the right and left are optimal for each user based on this information. By performing an appropriate image process, it is possible to absorb individual differences in appearance for each user and differences in the left and right visual acuity of each user, so that it is possible to display an easy-to-view image with less fatigue for all users.
  • the right-eye image and the left-eye image are radiographic images that are captured by irradiating radiation from different imaging angles with respect to the detection surface of the radiation detector, the radiographic image with the smaller imaging angle is used. S / N is often good. Further, it is not preferable to perform strong image processing on an image having a low S / N because many artifacts are generated. Therefore, when the image processing means is a radiographic image obtained by irradiating radiation from different imaging angles with respect to the detection surface of the radiation detector, the right-eye image and the left-eye image have a smaller imaging angle. If the image processing level of the radiographic image is made higher than the image processing level of the radiographic image with the larger imaging angle, the user can efficiently check the image while suppressing the generation of artifacts. be able to.
  • FIG. 1 is a schematic configuration diagram of a stereo breast image photographing display system using an embodiment of a stereoscopic image display apparatus of the present invention.
  • FIG. 1 is a diagram showing a schematic configuration of a breast image radiographing display system
  • FIG. 2 is a diagram of an arm portion of the stereo mammography radiographing display system shown in FIG. 1, viewed from the right side in FIG. 1, and
  • FIG. It is a block diagram which shows schematic structure inside the computer of a breast image radiography display system.
  • a breast image radiographing display system 1 of the present embodiment includes a mammography apparatus 10, a computer 8 connected to the mammography apparatus 10, a monitor 9 connected to the computer 8, and an input unit. 7.
  • the mammography apparatus 10 includes a base 11, a rotary shaft 12 that can move in the vertical direction (Z direction) with respect to the base 11, and can rotate.
  • the arm part 13 connected with the base 11 is provided.
  • FIG. 2 shows the arm 13 viewed from the right direction in FIG.
  • the arm portion 13 has an alphabet C shape, and a radiation table 16 is attached to one end of the arm portion 13 so as to face the imaging table 14 at the other end.
  • the rotation and vertical movement of the arm unit 13 are controlled by an arm controller 31 incorporated in the base 11.
  • a radiographic image detector 15 such as a flat panel detector and a detector controller 33 that controls reading of a charge signal from the radiographic image detector 15 are provided inside the imaging table 14. Further, inside the imaging table 14, a charge amplifier that converts the charge signal read from the radiation image detector 15 into a voltage signal, a correlated double sampling circuit that samples the voltage signal output from the charge amplifier, A circuit board provided with an AD conversion unit for converting a voltage signal into a digital signal is also installed.
  • the photographing table 14 is configured to be rotatable with respect to the arm unit 13, and even when the arm unit 13 rotates with respect to the base 11, the direction of the photographing table 14 is fixed to the base 11. can do.
  • the radiation image detector 15 can repeatedly perform recording and reading of a radiation image, and may use a so-called direct type radiation image detector that directly receives radiation and generates charges. Alternatively, a so-called indirect radiation image detector that converts radiation once into visible light and converts the visible light into a charge signal may be used.
  • a radiation image signal reading method a radiation image signal is read by turning on / off a TFT (thin film transistor) switch, or by irradiating reading light. It is desirable to use a so-called optical readout system from which a radiation image signal is read out, but the present invention is not limited to this, and other systems may be used.
  • a radiation source 17 and a radiation source controller 32 are housed in the radiation irradiation unit 16.
  • the radiation source controller 32 controls the timing of irradiating radiation from the radiation source 17 and the radiation generation conditions (tube current, time, tube current time product, etc.) in the radiation source 17.
  • a compression plate 18 that is disposed above the imaging table 14 and presses and compresses the breast M, a support portion 20 that supports the compression plate 18, and a support portion 20 that extends in the vertical direction.
  • a moving mechanism 19 for moving in the (Z direction) is provided. The position of the compression plate 18 and the compression pressure are controlled by the compression plate controller 34.
  • the computer 8 includes a central processing unit (CPU) and a storage device such as a semiconductor memory, a hard disk, and an SSD.
  • a processing unit 8c is configured.
  • the control unit 8a outputs predetermined control signals to the various controllers 31 to 34 to control the entire system. A specific control method will be described in detail later.
  • the radiation image storage unit 8b stores radiation image data for each imaging angle acquired by the radiation image detector 15.
  • the image processing unit 8c is for individually performing various image processing such as frequency enhancement processing and dynamic range compression processing on the radiographic image for the right eye and the radiographic image for the left eye.
  • the input unit 7 includes a pointing device such as a keyboard and a mouse, for example, and accepts input of shooting conditions and operation instructions by a photographer.
  • the monitor 9 is configured to display a stereo image by using the two radiographic image data output from the computer 8 to display the radiographic image for each imaging direction as a two-dimensional image.
  • radiographic images based on two radiographic image data are displayed using two screens, and one of the radiographic images is observed by using a half mirror, a polarizing glass, or the like. It is possible to adopt a configuration in which a stereo image is displayed by being incident on the right eye of the observer and the other radiation image is incident on the left eye of the observer.
  • two radiographic images may be displayed by being shifted by a predetermined amount of parallax, and the stereo images may be generated by observing them with a polarizing glass, or a parallax barrier method and a lenticular method
  • a stereo image may be generated by displaying two radiation images on a stereoscopically viewable 3D liquid crystal.
  • the device that displays a stereo image and the device that displays a two-dimensional image may be configured separately, or may be configured as the same device if they can be displayed on the same screen.
  • the breast M is set on the imaging table 14, and the breast M is compressed with a predetermined pressure by the compression plate 18.
  • the convergence angle ⁇ is preferably set to 4 ° or more and 15 ° or less because it is difficult to perform appropriate stereoscopic viewing if the convergence angle ⁇ is too small or too large.
  • the combination of the photographing angle ⁇ ′ is not particularly limited.
  • the shooting angle ⁇ ′, the one shooting angle ⁇ ′ described above, that is, the shooting angle ⁇ ′ for shooting an image for two-dimensional observation is preferably 0 °. This is because an image taken from the front of the radiation image detector 15 is most suitable for two-dimensional observation.
  • the arm controller 31 receives the information of the imaging angle ⁇ ′ output from the control unit 8a, and the arm controller 31 first uses the arm to capture a radiographic image for the right eye based on the information of the imaging angle ⁇ ′.
  • the controller 13 outputs a control signal with an imaging angle ⁇ ′ that is inclined 4 ° with respect to a direction perpendicular to the detection surface 15a.
  • the arm unit 13 rotates to a position of + 4 °.
  • the control unit 8a outputs a control signal to the radiation source controller 32 and the detector controller 33 so as to perform radiation irradiation and readout of the radiation image signal.
  • radiation is emitted from the radiation source 17, and a radiation image obtained by photographing the breast M from the direction in which the imaging angle ⁇ ′ is 4 ° is detected by the radiation detector 15, and a radiation image signal is detected by the detector controller 33.
  • the radiation image storage unit 8b of the computer 8 are read out and stored in the radiation image storage unit 8b of the computer 8.
  • the arm unit 13 rotates to a position of 0 °.
  • the control unit 8a outputs a control signal to the radiation source controller 32 and the detector controller 33 so as to perform radiation irradiation and readout of the radiation image signal.
  • radiation is emitted from the radiation source 17, and a radiation image obtained by photographing the breast M from the direction where the imaging angle ⁇ ′ is 0 ° is detected by the radiation detector 15.
  • radiographic image data having an imaging angle ⁇ ′ of 0 ° serves as both an image for two-dimensional observation and one image for stereoscopic display.
  • predetermined image processing may be automatically performed, or designation input from the user may be accepted.
  • both the right-eye radiographic image and the left-eye radiographic image are automatically subjected to different frequency enhancement processing.
  • other image processing may be used, and different types of images may be used on the left and right. It is good also as processing.
  • the image for the left eye has a smaller imaging angle, and this is considered to have a higher S / N. Therefore, the degree of frequency enhancement processing of the radiographic image for the left eye is similar to that of the radiographic image for the right eye. It is set to be higher than the degree of frequency enhancement processing.
  • the radiographic image for the right eye and the radiographic image for the left eye that have been subjected to image processing as described above are output to the monitor 9, and a stereo image of the breast M is displayed on the monitor 9.
  • the present invention is not limited to the above-described content.
  • the left and right eyesight information is acquired for each user, Based on this, optimal image processing (adjustment of sharpness, contrast, etc.) may be applied to each of the left and right.
  • optimal image processing adjusted of sharpness, contrast, etc.
  • individual differences in the appearance of each user and the left and right visual acuity of each user Therefore, it is possible to display an easy-to-view image with less fatigue for all users.
  • the present invention is applied to a stereo breast image photographing display system.
  • the present invention is not limited, and the present invention can be applied to any device as long as it is a stereoscopic image display device capable of displaying a stereo image.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
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  • Radiology & Medical Imaging (AREA)
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  • High Energy & Nuclear Physics (AREA)
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  • Computer Vision & Pattern Recognition (AREA)
  • Human Computer Interaction (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

[Problème] Améliorer l'efficacité d'une vérification basée sur la mise en oeuvre de différents types de traitement d'image dans un dispositif, en vue d'afficher une image tridimensionnelle en utilisant une image d'oeil droit et une image d'oeil gauche. [Solution] Une image d'oeil droit et une image d'oeil gauche sont soumises chacune à un traitement d'image différent au moyen d'une unité de traitement d'image (8c), et affichées sur un moniteur (9).
PCT/JP2011/005984 2010-10-28 2011-10-26 Dispositif d'affichage d'image tridimensionnelle, procédé et programme associés WO2012056695A1 (fr)

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US61/407,664 2010-10-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014068874A (ja) * 2012-09-28 2014-04-21 Fujifilm Corp 画像表示システム、放射線画像撮影システム、画像表示制御プログラム、及び画像表示制御方法。
WO2014080947A1 (fr) * 2012-11-20 2014-05-30 株式会社 東芝 Dispositif de diagnostic à rayons x, dispositif médical de traitement d'image, dispositif de traitement d'image, programme de commande de dispositif de diagnostic à rayons x, programme de traitement d'image médicale, et programme de traitement d'image

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Publication number Priority date Publication date Assignee Title
JPH0258993A (ja) * 1988-08-25 1990-02-28 Fujitsu Ltd 立体テレビジョン信号処理装置
JP2002052018A (ja) * 2000-08-11 2002-02-19 Canon Inc 画像表示装置、画像表示方法および記憶媒体
WO2009123066A1 (fr) * 2008-04-03 2009-10-08 日本電気株式会社 Procédé de traitement d'image, dispositif de traitement d'image, et support d'enregistrement
JP2010187916A (ja) * 2009-02-18 2010-09-02 Fujifilm Corp 画像処理装置、画像処理システム及びプログラム
JP2011082829A (ja) * 2009-10-07 2011-04-21 Nikon Corp 画像生成装置、画像生成方法、および、プログラム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258993A (ja) * 1988-08-25 1990-02-28 Fujitsu Ltd 立体テレビジョン信号処理装置
JP2002052018A (ja) * 2000-08-11 2002-02-19 Canon Inc 画像表示装置、画像表示方法および記憶媒体
WO2009123066A1 (fr) * 2008-04-03 2009-10-08 日本電気株式会社 Procédé de traitement d'image, dispositif de traitement d'image, et support d'enregistrement
JP2010187916A (ja) * 2009-02-18 2010-09-02 Fujifilm Corp 画像処理装置、画像処理システム及びプログラム
JP2011082829A (ja) * 2009-10-07 2011-04-21 Nikon Corp 画像生成装置、画像生成方法、および、プログラム

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014068874A (ja) * 2012-09-28 2014-04-21 Fujifilm Corp 画像表示システム、放射線画像撮影システム、画像表示制御プログラム、及び画像表示制御方法。
WO2014080947A1 (fr) * 2012-11-20 2014-05-30 株式会社 東芝 Dispositif de diagnostic à rayons x, dispositif médical de traitement d'image, dispositif de traitement d'image, programme de commande de dispositif de diagnostic à rayons x, programme de traitement d'image médicale, et programme de traitement d'image
JP2014121589A (ja) * 2012-11-20 2014-07-03 Toshiba Corp Ｘ線診断装置、医用画像処理装置、画像処理装置、ｘ線診断装置制御プログラム、医用画像処理プログラム、及び画像処理プログラム
CN103957803A (zh) * 2012-11-20 2014-07-30 株式会社东芝 X射线诊断装置、医用图像处理装置、图像处理装置、x射线诊断装置控制程序、医用图像处理程序、以及图像处理程序

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