WO2012056722A1 - Dispositif d'affichage d'image radiologique tridimensionnelle, procédé et programme associés - Google Patents

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

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Publication number
WO2012056722A1
WO2012056722A1 PCT/JP2011/006069 JP2011006069W WO2012056722A1 WO 2012056722 A1 WO2012056722 A1 WO 2012056722A1 JP 2011006069 W JP2011006069 W JP 2011006069W WO 2012056722 A1 WO2012056722 A1 WO 2012056722A1
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WO
WIPO (PCT)
Prior art keywords
image
stereoscopic image
fade
radiation
switching
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Application number
PCT/JP2011/006069
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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 WO2012056722A1 publication Critical patent/WO2012056722A1/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
    • A61B6/46—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
    • A61B6/50—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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
    • G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques

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.
  • a stereoscopically viewable image (hereinafter referred to as 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)
  • 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 stereoscopic image display device is a stereoscopic image display device that displays a stereoscopic image using two images, a right-eye image and a left-eye image, before switching the stereoscopic image to be displayed. After the stereoscopic image is faded out, display control means for fading in and displaying the switched stereoscopic image is provided.
  • the fade-in and / or fade-out may be performed by adjusting the contrast of the image, or may be performed by uniformly adjusting the luminance (density) of the entire image.
  • the stereoscopic image display method of the present invention is a stereoscopic image display method for displaying a stereoscopic image in a stereoscopic image display device that displays a stereoscopic image using two images, a right-eye image and a left-eye image. Then, when switching the stereoscopic image to be displayed, the stereoscopic image before switching is faded out, and then the stereoscopic image after switching is faded in and displayed.
  • “after fading out the stereoscopic image before switching and fading in the stereoscopic image after switching” is displayed after the stereoscopic video before switching is completely faded out.
  • the fade-in of the stereoscopic image after the switching is started before the fade-out is finished after the fade-out of the stereo image before the switching is started.
  • an aspect in which images before and after switching are displayed in an overlapping manner is also included.
  • a stereoscopic image to be displayed is displayed.
  • the stereoscopic image before switching is faded out, and then the stereoscopic image after switching is faded in and displayed, thereby reducing the user's fatigue when switching the stereoscopic image it can.
  • the present invention can be appropriately realized.
  • 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 performing various image processing in addition to adjusting the image brightness so that the stereoscopic image is faded in / out when switching the stereoscopic image to be displayed.
  • the display control means of the present invention includes a control unit 8a and an image processing unit 8c.
  • the input unit 7 is constituted by a pointing device such as a keyboard and a mouse, for example.
  • the input unit 7 also accepts input of shooting conditions and operation instructions by the photographer.
  • the monitor 9 is configured to display a stereo image by using the two radiographic image signals output from the computer 8 to display the radiographic image for each imaging direction as a two-dimensional image.
  • a radiographic image based on two radiographic image signals is displayed using two screens, and one of the radiographic images is observed by using a half mirror or a polarizing glass. 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.
  • FIG. 4 is a diagram for explaining contrast adjustment
  • FIG. 5 is a diagram for explaining fade-in / fade-out.
  • 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 control unit 8 a When there is an instruction to start photographing at the input unit 7, a stereo image of the breast M is photographed. Specifically, first, the control unit 8 a outputs information about the convergence angle ⁇ and the imaging angle ⁇ ′ constituting the convergence angle ⁇ to the arm controller 31.
  • the present invention is not limited to this, and the photographer can set an arbitrary convergence angle ⁇ at the input unit 7.
  • 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 + 2 ° with respect to a direction perpendicular to the detection surface 15a.
  • the arm unit 13 rotates to a position of + 2 °.
  • 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 + 2 ° is detected by the radiation detector 15, and the 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.
  • a control signal that outputs an imaging angle ⁇ ′ in which the arm unit 13 is inclined by ⁇ 2 ° with respect to a direction perpendicular to the detection surface 15a is output.
  • the arm unit 13 rotates to a position of -2 °.
  • 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 ⁇ 2 ° is detected by the radiation detector 15, and the radiation image is detected by the detector controller 33.
  • the signal is read out and stored in the radiation image storage unit 8b of the computer 8.
  • the stereo image before the switching is faded out, and after the fade-out is finished, the switched stereo image is faded in and displayed.
  • the fade-in / fade-out process is performed by adjusting the contrast of the image.
  • the contrast of the image can be changed from the maximum to the minimum by gradually laying the display luminance characteristic graph of the monitor 9 with respect to the signal value of the image from C_max to C_min while maintaining the linear characteristic. .
  • the contrast of the stereo image (image 1) before the switching is gradually decreased from C_max to C_min to fade out, and the interval (non-display time) t elapses from the end of the fade-out. Later, the contrast of the stereo image after switching (image 2) is gradually increased from C_min to C_max to be faded in and displayed.
  • the interval (non-display time) is not particularly limited, but a preferable range may be about 0.5 to 1 second. Further, the fade-in may be started immediately after the end of the fade-out without providing an interval (non-display time). Further, the fade-in of the stereo image after switching may be started before the end of the fade-out of the stereo image before switching.
  • the aspect of the fade-in / fade-out is not limited to the above, but it is possible to fade out to the intermediate contrast and fade in from the intermediate contrast, or to make the fade-out end point state and the fade-in start point state different. It is good also as a mode.
  • fade-in / fade-out processing may be performed by other methods such as uniformly adjusting the luminance (density) of the entire image.
  • the stereoscopic image display apparatus of the present invention is applied to a stereo breast image capturing and displaying system.
  • the present invention is limited to a stereo breast image capturing and displaying system.
  • 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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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

L'invention se rapporte au problème lié à l'atténuation de la fatigue ressentie par un utilisateur lorsqu'il commute l'image tridimensionnelle, affichée sur un dispositif d'affichage d'images tridimensionnelles, pour passer à l'affichage d'une image tridimensionnelle en utilisant une image d'oeil droit et une image d'oeil gauche. Pour la résolution du problème, une image tridimensionnelle de pré-commutation se ferme en fondu dans un ordinateur (8) lors de la commutation de l'image tridimensionnelle affichée, une image tridimensionnelle de post-commutation s'ouvre en fondu à la fin de la fermeture en fondu, et l'image tridimensionnelle est affichée sur un moniteur (9).
PCT/JP2011/006069 2010-10-29 2011-10-28 Dispositif d'affichage d'image radiologique tridimensionnelle, procédé et programme associés WO2012056722A1 (fr)

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US40820010P 2010-10-29 2010-10-29
US61/408,200 2010-10-29

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WO2012056722A1 true WO2012056722A1 (fr) 2012-05-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109676589A (zh) * 2018-12-28 2019-04-26 广州励丰文化科技股份有限公司 一种同步机械臂运动和图像处理的控制方法及***

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000152122A (ja) * 1998-11-18 2000-05-30 Victor Co Of Japan Ltd デジタル放送受信機
WO2004107764A1 (fr) * 2003-05-27 2004-12-09 Sanyo Electric Co., Ltd. Dispositif et programme d'affichage d'images
JP2009239388A (ja) * 2008-03-26 2009-10-15 Fujifilm Corp 立体動画像処理装置および方法並びにプログラム
JP2010199740A (ja) * 2009-02-23 2010-09-09 Fujifilm Corp 立体画像表示装置及び立体画像表示方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000152122A (ja) * 1998-11-18 2000-05-30 Victor Co Of Japan Ltd デジタル放送受信機
WO2004107764A1 (fr) * 2003-05-27 2004-12-09 Sanyo Electric Co., Ltd. Dispositif et programme d'affichage d'images
JP2009239388A (ja) * 2008-03-26 2009-10-15 Fujifilm Corp 立体動画像処理装置および方法並びにプログラム
JP2010199740A (ja) * 2009-02-23 2010-09-09 Fujifilm Corp 立体画像表示装置及び立体画像表示方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109676589A (zh) * 2018-12-28 2019-04-26 广州励丰文化科技股份有限公司 一种同步机械臂运动和图像处理的控制方法及***

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