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Image generation device, method, and program

An image generation device and image generation technology, applied in image generation, medical image, image data processing, etc., can solve the problems of inability to accurately display the three-dimensional shape of blood vessels, pixel value changes, etc.

Inactive Publication Date: 2014-12-10
FUJIFILM CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this case, due to the imaging timing, the amount of contrast medium, etc., the pixel values ​​vary depending on the location even in the same blood vessel region, and therefore there is a problem that the generation of images that display a wide range in one image In the case of an image of a blood vessel region, even a single target tissue called a blood vessel cannot accurately display the three-dimensional shape of the entire blood vessel if only one color map and / or opacity curve is applied to it

Method used

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  • Image generation device, method, and program
  • Image generation device, method, and program
  • Image generation device, method, and program

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Embodiment Construction

[0041] Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. figure 1 It is a block diagram showing a schematic configuration of the image generating device 1 . In addition, it can be realized by executing the image generation program loaded into the auxiliary storage device on the computer. figure 1 The configuration of such an image generating device 1 . In this case, the image generation program is stored in a storage medium such as a CD-ROM or distributed via a network such as the Internet, and installed in a computer. As the processing executed by the CPU of the computer, the image processing program defines image acquisition processing, image generation processing, region specification processing, opacity curve setting processing, and display control processing. The computer is made to function as an image acquisition unit 11 , an image generation unit 12 , an area identification unit 13 , an opacity curve setting ...

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Abstract

[Problem] To generate an image that more accurately renders the 3D shape of a predetermined subject when generating an artificial 3D image by means of volume rendering. [Solution] When generating an artificial 3D image by means of volume rendering using an opacity curve defining the relationship between pixel values and opacity in a 3D image, the entire region representing the predetermined subject from the 3D image is specified, a base opacity curve is set for the specified entire region, for each of at least a subset of pixels within the specified entire region, a representative value of the pixel values within the region proximal to the relevant pixel is acquired, and an opacity curve resulting from imparting a change to the set base opacity curve using the acquired representative values is set as the opacity curve applied to the relevant pixel in volume rendering.

Description

technical field [0001] The present invention relates to an image generation device, method, and program for generating a pseudo three-dimensional image by performing volume rendering on a three-dimensional image. Background technique [0002] Conventionally, in order to easily grasp the three-dimensional structure of a subject, a process of generating / displaying a pseudo three-dimensional image obtained by a CT device, an MRI device, an ultrasonic diagnostic device, etc. An image in which acquired three-dimensional image data of a subject is stereoscopically visualized on a two-dimensional plane. As a method of generating such a pseudo three-dimensional image, it is known to set opacity and R, G, and B color information for each pixel value (voxel value) constituting the three-dimensional image, and to perform an image from the observation side to the projection surface. ray-casting of each pixel for volume rendering of visualization. [0003] In general, a set of opacity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/08A61B5/00A61B6/03
CPCA61B6/466A61B2576/00A61B5/489G06T15/08A61B6/504A61B8/0891A61B8/466A61B8/483G06T2210/41G16H30/40G06T2200/04
Inventor 桝本润
Owner FUJIFILM CORP
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