Hitachi, Ltd.

Hitachi Medical Corporation

Hanae Yoshida

Michio Oikawa

Hiroki Taniguchi

Tomohiro Nagao

Maki Tanaka

Takashi Shirahata

Mayumi Suzuki

Xingdong Sheng

Yingjie Han

Yun Li

Miho Isokawa

Jiangtao Gao

A medical image processing apparatus and a medical image processing method that can improve extraction accuracy of a tumor region included in a diagnosis target image are provided. The medical image processing apparatus configured to extract a predetermined region from a diagnosis target image includes: an organ extraction unit configured to extract an organ region from the diagnosis target image; and a tumor extraction unit generated by executing machine learning using a known tumor region included in each medical image group as teacher data and using an organ region extracted from the medical image group and the medical image group as input data. The tumor extraction unit is configured to extract a tumor region from the diagnosis target image using the organ region extracted from the diagnosis target image by the organ extraction unit.

Medical image processing apparatus and medical image processing method

An image processing device and an image processing method that performs image interpretation as fast as possible, without oversight by an interactive operation, when performing the image interpretation of a large amount of volume data in which an interest region is set in advance are provided. The image processing device that generates a two-dimensional image from a captured three-dimensional image and displays the generated two-dimensional image receives an input signal relating to primary display control information including a speed of a display control input of the two-dimensional image, calculates the primary display control information from the input signal, calculates secondary display control information including a display speed of the two-dimensional image based on information of an interest region and the primary display control information, and sequentially generates the two-dimensional images based on the secondary display control information and displays the generated two-dimensional image.

Image processing device, image processing method and image processing system

An image display method and an image display apparatus to solve the three-dimensional cueing confliction problem of the maximum intensity projection in the stereoscopic display method, while enabling users to select and render with emphasis the maximum intensity projection of the objects of interest, so that to realize the stereoscopic display. A three-dimensional surface which has equal distance to a sight-point is utilized as a reference surface, and the distances from all of the local maximum intensity points to this reference surface are calculated, then a weighting factor of each local maximum intensity point is calculated according to the distances and predetermined weighting function. After, the values of local maximum intensity points are adjusted according to the obtained weighting factors, and finally, the maximum intensity projection value is produced by synthesizing all of the adjusted values of the local maximum intensity points.

Image processing method and image processing apparatus

In the present invention, when a 3D medical image is displayed on a 3D display, the position of accompanying information displayed at the same time is appropriately controlled. The position of the accompanying information in the coordinate system of a 3D signal value that is an item to be drawn is computed, and said position is saved in a storage unit. By integrating a 3D data area and an accompanying information area, a drawing process unit generates an output image to be displayed in a display unit, said 3D data area being drawn for an area specified by mask information that specifies an area to be drawn among an array of the 3D signal value that is the item to be drawn, and being drawn on the basis of information that specifies a drawing method for a 2D image based on the 3D signal value array, and said accompanying information area being drawn for the accompanying information, which is associated with the item to be drawn, and being drawn on the basis of position information for the accompanying information determined by a drawing control unit. The display unit displays the drawn output image.

Image display device, method and program

An image processing device includes an extraction process executing unit that extracts a 3-dimensional initial region satisfying a predetermined condition from the volume data, a region correction process executing unit that extracts a 3-dimensional corrected region by performing a correction process on the initial region, and a visualization process executing unit that generates a plurality of cross-sectional diagrams of the 3-dimensional image from the volume data and outputs at least some of the plurality of cross-sectional diagrams. When the initial region is displayed, one or more cross-sectional diagrams having voxels in the initial region are outputted so that the voxels included in the initial region are distinguishable from other regions. When the corrected region is displayed, one or more cross-sectional diagrams having voxels in the corrected region are outputted so that the voxels included in the corrected region are distinguishable from other regions.

Image processing device and image processing method

Provided is an image processing apparatus that automatically recognizes a plurality of organs to subsequently visualize the automatic recognition results in an easy-to-understand manner, and facilitate a modification of the displayed recognition results. The image processing apparatus () uses an image processing algorithm to perform an image processing of medical image volume data. The image processing apparatus () comprises an organ recognition algorithm executing unit () that applies an organ recognition algorithm to medical image volume data to generate and output, as an organ recognition result, structural information on the plurality of organs, and a recognition result displaying unit () that displays the organ recognition result. The image processing apparatus () comprises: a recognition result judging unit () that acquires, via an input device (), judgment information on whether or not the structural information is correct enough for each of the plurality of organs to be properly recognized; and an organ recognition algorithm revising unit that acquires the judgment information from the recognition result judging unit (), changes reference information on each organ according to the acquired judgment information and changes the organ recognition algorithm to recognize the plurality of organs using the changed reference information.

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Tokyo, Japan

Hanae Yoshida