JPH10301951A - Data converting/editing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to smoothly execute a series of processing of data conversion and edition, to improve processing speed and to easily secure the capacity of a memory. SOLUTION: In the case of converting and editing original data 1 including original image data and data related to the image into object-directional routine data in each plural image generators or modalities, one data to be expressed are converted into intermediate routine data 5' constituted of the tag number 2 and data length 3 of the data and a memory address value 28 consisting of the leading address value of a setting place of a data substance 4 and the data 5' are defined. At the end of all editing processing based upon the data 5', one data to be expressed are converted into routine data 5 defined by a common standard constituted of the tag number 2 and data length 3 of the data and the data substance 4. Consequently a series of processing of data conversion and edition can be smoothly executed, processing speed can be improved and the capacity of the memory can easily be secured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to data for converting and editing original image data for each of a plurality of image generating apparatuses (for example, medical image diagnostic apparatuses) or modalities and data relating to the images into object-oriented fixed data. More particularly, the present invention relates to a data conversion / editing apparatus capable of smoothly performing a series of data conversion and editing processing, improving processing speed, and easily securing a memory capacity.

[0002]

2. Description of the Related Art When exchanging information between a plurality of image generating apparatuses, for example, medical image diagnostic apparatuses, mutually exchange information standards concerning images unique to the apparatus, and convert the information standards into information standards for a partner apparatus. Had gone. In this case, the converted information standard cannot be used for other devices, and conversion work is performed for each device. In order to solve this complication, in recent years, DICOM (Digital Imaging)
A common standard called the g and Communicationin Medicine standard has been developed and is becoming a global standard.

FIG. 6 shows one type of fixed data defined by the DICOM standard. That is, the original data 1 including the image data and the data related to the image is composed of the standard data 5 including the tag number 2, the data length 3, and the data entity 4.
Is converted to In this case, the tag number 2 and the data length 3 have a fixed record length, but the data entity 4 has a variable record length. The data type and the length of the data entity 4 vary depending on the data to be expressed. The definition of information in the DICOM standard is the standard data 5 based on the object-oriented idea, and the tag number 2
Defines the attribute of the value, the content to be represented, the meaning, the data type, and the like. In addition, since the necessary objects and the data contents of the objects are defined for each modality, when used, it is necessary to sequentially set the information as the configuration of the standard data 5 as instructed by the standard. .

FIG. 7 shows the above-mentioned object-oriented fixed data.
5 shows a part of a usage example. Original data 1 is
Original image data generated by the device and the
Data. This original data 1 is a common standard
It is converted to a certain fixed form data 5, but this conversion is
O₁, O_Two,..., On for each object O ₁
~ Fixed data 5 for each On₁, 5_Two, ..., 5n. Soshi
And the object O₁~ Fixed data 5 for each On₁~ 5
sort n in order of tag number (7) or modality
Edit (8) separately and edit each
The rule standard data 9 and 10 are created.

[0005]

[0006] However, in the conversion editing of such a conventional data, for example, the data of the object O ₂ as shown in FIG. 7 when the data structure of type data 5 ₂ defined in DICOM standard, FIG. 8 The data is set in the configuration as shown in FIG. That is,
Since the type and length of the data entity 4 are different for each data,
When the editing process shown in FIG. 7 is performed, each time the first data, the second data,... Are processed, as shown by reference numerals 11 and 12, the data length 3 is checked, and only the data length 3 is checked. Since the pointer must be moved, the editing process cannot be performed smoothly, and the processing speed may be reduced. Further, since the data after the editing process includes image data, a large memory capacity is required. Furthermore, since the final capacity of data relating to images is unknown, it is difficult to secure a memory capacity before processing.

Further, as shown in FIG.
Even though they are different like AAA, BBBB, CCCC,..., They may have a common object. For example, the object O ₁ has modalities AAAA, BB
BB, CCCC, DDDD,..., N are required objects, and the object O ₂ is a modality AAAAA,
This is an object required for BBBB and DDDD. Therefore, the same object is duplicated for each modality, and the processing time and the memory capacity may be wasted.

Accordingly, the present invention addresses such a problem, and enables a series of data conversion and editing processes to be performed smoothly, improving the processing speed and easily securing a memory capacity. It is intended to provide a device.

[0008]

In order to achieve the above object, a data conversion / editing apparatus according to the present invention captures and stores original image data for each of a plurality of image generators or modalities and data relating to the image. A recording device, an arithmetic processing device that converts and edits the data read out from the recording device into object-oriented fixed data, and a display of processing items related to data conversion and editing in the arithmetic processing device. And an operation input device for inputting an operation command for the above-described processing. The arithmetic processing device converts and edits the original image data and the data related to the image into object-oriented fixed data. When expressing one piece of data, the tag number of the data, the data length, and the data entity It is defined by converting it to intermediate fixed data composed of the memory address value consisting of the start address value of the location where the data was set, and when all editing processing is completed by this intermediate fixed data, one data is expressed. The data is converted into fixed-form data defined by a common standard composed of a tag number, a data length, and a data entity of the data.

In the above-mentioned intermediate fixed-form data, the tag number, the data length, and the memory address value, which are the constituent data, may all be defined as fixed-length data.

[0010]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a block diagram showing an embodiment of a data conversion / editing apparatus according to the present invention. This data conversion / editing device converts and edits original image data and data relating to the image for each of a plurality of image generating devices (for example, medical image diagnostic devices) or modalities into object-oriented fixed data. As shown in FIG. 1, the common bus 14, the magnetic disk 15, the main memory 16, the CPU 17, and the display memory 1
8, a CRT 19, a keyboard 20, and a mouse 21
And a controller 22.

The magnetic disk 15 fetches and stores original image data for each of a plurality of image generators or modalities and data relating to the images, and stores a program for executing data conversion and editing of the present invention. This is a recording device that performs the recording. The main memory 16
It stores a program for executing an operation by a CPU 17 described later. The CPU 17 converts original image data read from the magnetic disk 15 and data relating to the image into object-oriented fixed data and performs editing processing. The CPU 17 stores a program for performing the data conversion and editing on the magnetic disk 15. , And execute data conversion editing using the main memory 16.

The display memory 18 stores a CRT 1 described later.
9 for writing and reading image data to be displayed and data relating to the image. The CRT 19 uses the CP
This is a display device that displays processing items related to data conversion and editing in U17 and displays necessary items for other processing (communication, storage, display, etc.). The keyboard 20 and the mouse 21 serve as operation input devices for inputting operation commands for the above processing, and the mouse 21 is connected via the controller 22. The common bus 14 includes the magnetic disk 15, the main memory 16, the CPU 17, the display memory 18, and the controller 22.
And the keyboard 20 are connected to each other for data communication.

As shown in FIG. 2, the data conversion / editing device 23 configured as described above includes, for example, an X-ray CT device 24,
At a certain medical facility where the MRI apparatus 25, the ultrasonic diagnostic apparatus 26 and the like are installed, and at another place, for example, the X-ray CT
When information is exchanged between each device with another medical facility where the 4 ', MRI device 25', ultrasonic diagnostic device 26 ', medical image management system (PACS) 27, etc. are installed, Alternatively, original image data for each modality and data related to the image are converted and edited into object-oriented fixed data, and when all editing processing and internal processing are completed, a common standard (for example, DICO
It is used for exchanging information by converting it into standard data defined by the M standard. Here, the internal processing is, for example, X
This processing refers to processing until the fixed data defined by the common standard is transmitted to the line CT apparatus 24 ', the MRI apparatus 25', the ultrasonic diagnostic apparatus 26 ', and the PACS 27.

As shown in FIG. 3, the basic operation of the data conversion / editing device 23 is as follows. The original data 1 including the original image data for each of a plurality of image generating devices or modalities and the data related to the image is obtained. When converting and editing into object-oriented fixed-form data, a memory address value consisting of a tag number 2, a data length 3, and a head address value of a place where the data entity 4 is set is used to represent one piece of data. 28, the data is defined by converting the data into intermediate fixed data 5 'composed of the data 28 and when all the editing processing is completed by the intermediate fixed data 5', the tag number 2 of the data is used to express one data. The data is converted into standard data 5 defined by a common standard (for example, DICOM standard) composed of a data length 3 and a data entity 4. At this time, in the intermediate fixed form data 5 ', the tag number 2, the data length 3, and the memory address value 28 which are the constituent data are all defined as fixed length data.
Only the data entity 4 has a variable length. Therefore,
With respect to the intermediate fixed form data 5 ', editing processing such as sorting of data by tag number 2 and classification for each modality can be efficiently performed, and data can be used effectively. The above operation is executed by the CPU 17 shown in FIG.

Next, a specific processing procedure of an operation for setting the intermediate fixed-form data 5 'in data conversion and editing by the data conversion and editing device 23 of the present invention will be described with reference to FIG. First, original data 1 including original image data for each device or each modality and data related to the image from the magnetic disk 15 shown in FIG.
(See FIG. 3) (step A in FIG. 4). next,
The initial value of the all data set counter x is set to x = 0 (step B). Further, the initial value of the data set counter y for each object is set to y = 0 (step C).

Next, according to the value of the tag number of one data, the modality to which the value belongs and the contents to be represented, the meaning, the data type, etc. are defined in the standard. An item to be searched is searched from the original data 1 and converted into the data type indicated by the tag number (step D). Next, the tag number 2 is set in the intermediate fixed form data 5 'shown in FIG. 3 (step E). Further, a data length 3 indicating the length of the data entity 4 converted in step D is set in the intermediate fixed form data 5 '(step F).

Next, a memory address value 28 to which the data entity 4 converted in step D can be set is determined (step G). Then, the data entity 4 is set to the determined memory address value 28 (step H).
Next, the memory address value 28 determined in step G is set in the intermediate fixed form data 5 '(step I).

Since one piece of data is set in the intermediate fixed form data 5 'shown in FIG. 3, the value of the data set counter y for each object is incremented by "1" (step J). Then, it is determined whether the necessary data set has been completed for each object (step K). If not, the process proceeds to “NO” and returns to step D. Then, step D → E → F → G → H
→ I → J → K is repeated, and when all necessary data sets for each object have been completed, step K proceeds to the “YES” side.

Next, the number of data sets set in steps D to K is set in a data set counter y for each object (step L). Then, it is determined whether the setting has been completed for all object data (step M). "NO" if not finished yet
Go to step C and return to step C. Then, step C → D →
The sequence of E → F → G → H → I → J → K → L → M is repeated, and when the setting is completed for all the object data, the step M proceeds to the “YES” side to end the processing.

FIG. 5 shows the contents of the intermediate fixed form data 5 'set by the above processing, for example. The tag number, data length, and memory address value are all fixed lengths. The variable-length data entity is set in locations 29 and 30 indicated by the memory address value.

Thereafter, when at least one of the editing processing and the internal processing is completed by the intermediate fixed form data 5 ', as shown in FIG. 3, the tag number 2 of the data is used to express one data. The data is converted into standard data 5 defined by a common standard composed of a data length 3 and a data entity 4. At this time, the data entity 4 indicated by the memory address value 28 of the intermediate fixed form data 5 'is read, and the data entity 4 may be set at the position where the memory address value 28 is set on the intermediate fixed form data 5'. ,
Then, in the form of the standard data 5 defined in this common standard,
In FIG. 2, for example, the X-ray CT apparatus 24 and the MRI apparatus 2
5. At a certain medical facility where the ultrasonic diagnostic apparatus 26 and the like are installed and at other places, for example, an X-ray CT apparatus 24 ', an MRI apparatus 25', an ultrasonic diagnostic apparatus 26 ', and a medical image management system (PACS) Information is exchanged between the respective devices with another medical facility where 27 or the like is installed.

[0022]

The present invention has been configured as described above.
When converting and editing original image data for each of a plurality of image generators or modalities and data related to the image into object-oriented fixed data, the tag number of the data, the data length, and the like are used to represent one data. ,
It is defined by converting it to intermediate fixed data composed of the memory address value consisting of the head address value of the place where the data entity is set, and when all the editing processing and internal processing are completed by this intermediate fixed data, one Performs editing and internal processing using the intermediate fixed data by expressing data by converting it into fixed data defined by a common standard consisting of the tag number, data length, and data entity of the data. In this case, the data entity of variable length can be processed separately, a series of processes of data conversion and editing can be smoothly performed, the processing speed can be improved, and the memory capacity can be easily secured. In addition, since the variable-length data entities are processed separately, data having different modalities but the same data content is not set twice or three times, and the processing time and the memory capacity can be efficiently utilized. .

In the case where the intermediate fixed form data is defined as fixed-length data including the tag number, the data length, and the memory address value which are the constituent data, a series of data conversion and editing processing is further performed. The processing speed can be improved, the processing speed can be improved, and the memory capacity can be easily secured.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a data conversion / editing apparatus according to the present invention.

FIG. 2 illustrates the use of the data conversion and editing device, for example, between one medical facility and another medical facility at another location.
It is an explanatory view showing a use state when information is exchanged between each device.

FIG. 3 is an explanatory diagram showing an outline of a basic operation of data conversion and editing in the data conversion and editing device.

FIG. 4 is a flowchart showing a specific processing procedure of an operation of setting intermediate fixed-form data in data conversion / editing by the data conversion / editing apparatus of the present invention.

FIG. 5 is an explanatory diagram showing a state of a data set composed of the intermediate fixed-form data.

FIG. 6 is an explanatory diagram showing an outline of a basic operation of conversion and editing of data according to a conventional common standard.

FIG. 7 is an explanatory diagram showing a part of a usage example of fixed data according to a conventional object-oriented common standard.

FIG. 8 is an explanatory diagram showing a state of a data set composed of fixed data defined by a common standard.

FIG. 9 is an explanatory diagram showing that even if modalities are different from each other, they may have a common object.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Original data 2 ... Tag number 3 ... Data length 4 ... Data entity 5 ... Standard data of common standard 5 '... Intermediate fixed data 14 ... Common bus 15 ... Magnetic disk 16 ... Main memory 17 ... CPU 18 ... Display memory 19 ... CRT 20: Keyboard 21: Mouse 22: Controller 23: Data conversion / editing device 28: Memory address value

Continued on the front page (51) Int.Cl. ⁶ Identification code FI G06F 15/40 380E 15/42 Z

Claims (2)

[Claims] 1. A recording device for fetching and storing original image data for each of a plurality of image generating devices or modalities and data related to the image, and converting the data read from the recording device to object-oriented fixed data. And an operation processing device that performs processing of editing and processing, a display device that displays processing items and the like relating to conversion and editing of data in the operation processing device, and an operation input device that inputs an operation command for the above processing. When the original image data and the data related to the image are converted and edited into object-oriented fixed data by the arithmetic processing device, the tag number of the data, the data length, and the data length are used to represent one data. And a memory address value consisting of the start address value of the place where the data entity is set After converting to data and defining it, and all the editing processing is completed with this intermediate fixed data,
A data conversion / editing apparatus characterized by converting one set of data into fixed form data defined by a common standard composed of a tag number, a data length, and a data entity of the data. 2. The data conversion method according to claim 1, wherein the tag data, data length, and memory address value of the intermediate fixed form data are all defined as fixed-length data. Editing device.