CN102456095A - Method for accelerating reading of large batch of medical image files and system for the same - Google Patents
Method for accelerating reading of large batch of medical image files and system for the same Download PDFInfo
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- CN102456095A CN102456095A CN2010105294130A CN201010529413A CN102456095A CN 102456095 A CN102456095 A CN 102456095A CN 2010105294130 A CN2010105294130 A CN 2010105294130A CN 201010529413 A CN201010529413 A CN 201010529413A CN 102456095 A CN102456095 A CN 102456095A
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Abstract
The invention discloses a method for accelerating the reading of large batch of medical image files and a system for the same, wherein the method comprises the following steps of: 1) originating a head information request for obtaining a target image folder to a server by a client; 2) forming large batch of images in the target image folder into a paging table according to the head information request; 3) establishing an image reading internal memory block; 4) putting a page in the paging table into the image reading internal memory block to serve as a default starting reading page which is also considered as an initial display image; 5) looking up in the paging table by a monitoring thread according to an instruction and obtaining a corresponding image page number to which the instruction points, and reading the image page number in the image reading internal memory block established in the step 3; 6) performing preprocessing on the image of the present page put in the image reading internal memory block; 7) selecting the preprocessed present page image as a present reading display page for display on a display device; and simultaneously commanding the background to release non-present page image files occupying the capacity of the image internal memory block; 8) displaying the image of the present reading display page by the display device; and 9) circulating the steps 5-8 until the completion of the reading of this time. The method is capable of effectively increasing the reading speed of large batch of images and reducing dependency on the hardware performance of a computer without increasing hardware investment.
Description
Technical field
The present invention relates to the computer picture display technique, relate in particular to method and system thereof that medical image file acceleration in enormous quantities is read.
Background technology
Along with the arrival of information age, digitizing, standardization, networked operation have got into medical image circle, and fast development.At medical domain, be accompanied by medical device applications such as some multi-detector CT, big discharge capacity MR, DSA in clinical, produce a large amount of image files accordingly.Because the restriction of calculator memory at present makes a large amount of image files that read these equipment generations need great amount of time, thereby influences doctor's diagnosis efficiency.
Summary of the invention
The present invention be directed to existing Computer Storage and transmission system (PACS) read medical image speed image in enormous quantities slow, to the big problem of computer hardware performance dependence, and the medical image file a kind of in enormous quantities that provides quickens the method and the system thereof that read.
The technical scheme that the present invention takes is: the method that a kind of medical image file acceleration in enormous quantities is read, be characterized in, and may further comprise the steps: the method that a kind of medical image file acceleration in enormous quantities is read, be characterized in, may further comprise the steps:
1), user end to server initiates to obtain the header request of target image file folder;
2), according to the header request image in enormous quantities in this target image file folder is carried out paging, pagination, the formation page table;
3), set up image and read memory block;
4), putting into image with certain page in the page table reads the initial read page of memory block as acquiescence, the initial display image of confession display conduct;
6), carry out pre-service to putting into the image that image reads the memory block current page;
7), that pretreated current page image is selected as current reading demonstration page or leaf, the demonstration of confession display; Order the non-current page image file of capacity in the backstage release busy image memory piece simultaneously;
8), display shows that current reading shows the image of page or leaf;
9), circulation step 5～step 8, finish until this time reading.
The method that above-mentioned a kind of medical image file acceleration in enormous quantities is read, wherein, the described target image file folder of step 1 is meant the set of some patients' that the doctor prepares to check medical image image.
The method that above-mentioned a kind of medical image file acceleration in enormous quantities is read, wherein, the described paging of step 2 is a patient's multiple image file to be numbered according to image sequence carry out paging.
The method that above-mentioned a kind of medical image file acceleration in enormous quantities is read, wherein, described each image page comprises at least one complete image.
The method that above-mentioned a kind of medical image file acceleration in enormous quantities is read, wherein, described every complete image is all less than 1024 * 1024 matrixes.
The method that above-mentioned a kind of medical image file acceleration in enormous quantities is read, wherein, described image pre-service is that 10,12,16 the gray level image mapping treatment that image documentation equipment is taken is become 8 gray level image.
The method that above-mentioned a kind of medical image file acceleration in enormous quantities is read, wherein, the formula that described image mapped is handled is following:
y?=?[?(x?-?(min?-?0.5)?]?/?(max-1)?+?0.5)?×255；
Wherein x is the pixel value of the pixel of current pretreatment image,
Min be the minimum of current pretreatment image to the element value,
Max is the max pixel value of current pretreatment image,
Y is the pixel value of the current pretreatment image after shining upon,
0.5 with 255 are constants of setting.
The system that a kind of medical image file acceleration in enormous quantities is read is characterized in, comprising:
Image is carried out the monitoring thread of monitoring management;
Image in the destination folder is carried out the page table that paging forms;
Need the query unit of images displayed according to instruction inquiry in page table;
The image memory piece of the present image page or leaf that storage is obtained by inquiry;
Image to preparing to read carries out pretreated image pretreatment unit; And,
The display that shows pretreated present image.
In the system that above-mentioned a kind of medical image file in enormous quantities quickens to read; Also comprise an image memory administrative unit in the described image memory piece; This image memory administrative unit is made as read page with the image page or leaf that current inquiry obtains; The confession display shows, orders the backstage to discharge the non-current page image of shared image memory piece memory size simultaneously.
In the system that above-mentioned medical image file a kind of in enormous quantities quickens to read, described image pre-service is that 10,12,16 the gray level image mapping treatment that image documentation equipment is taken is become 8 gray level image.
The present invention is owing to adopted above technical scheme, and the technique effect of its generation is tangible:
1, the present invention is owing to use the method for image paging; Can be under the prerequisite that does not increase hardware investment; Improve the reading speed of medical image in enormous quantities effectively,, thereby improve doctor's diagnosis efficiency especially less than the reading speed of the medical image of 1024X1024 matrix;
2, the present invention loads memory techniques through using the image paging; Only a width of cloth or a few width of cloth image graftabl of current one page that will show or several pages; The non-current page image file of capacity in the image memory of the backstage release busy simultaneously piece; Thereby the data quantity stored in the image memory piece is significantly reduced, thereby improved that image reads and display speed, reduced dependence the computer hardware performance.
Description of drawings
Fig. 1 is that the present invention realizes that medical image file in enormous quantities quickens the system framework synoptic diagram that reads.
Fig. 2 is a kind of embodiment synoptic diagram of the image page table of a kind of medical image file in enormous quantities of the present invention method of quickening to read.
Fig. 3 is the process flow diagram of the present invention's medical image file in enormous quantities method of quickening to read.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
See also Fig. 1.System of the present invention comprise to image carry out the monitoring thread 1 of monitoring management, to the image memory piece 4 of the present image page or leaf that the image in the destination folder carries out page table 2 that paging forms, the query unit 3, storage that need images displayed according to instruction inquiry in page table are obtained by the query unit inquiry, the image of preparing to read is carried out pretreated image pretreatment unit 5, and the display 6 of the present image of storing in the display image memory block.Monitoring thread of the present invention is carried out paging to the large batch of image (less than the 1024X1024 matrix) in the target image file folder of having asked header earlier according to definition in advance, forms the image page table.Want the images displayed page number according to the instruction of business process then, search the position at this image place, and be responsible for calling in the image memory piece to this page image.Also comprise an image memory administrative unit 41 in the image memory piece; This image memory administrative unit 41 is made as read page with the image page or leaf that current inquiry obtains; The confession display shows, orders the backstage to discharge the non-current page image of shared image memory piece memory size simultaneously.Because the image that medical imaging equipment is taken is not 8 a gray level image, therefore before the display display image, also need to carry out pre-service to putting into the current images that image reads memory block.
The process flow diagram of the method that a kind of medical image file acceleration in enormous quantities of concrete the present invention is read is as shown in Figure 3, may further comprise the steps:
The header request that step 100, user end to server initiate to obtain the target image file folder; This target image file folder is meant the set of some patients' that the doctor prepares to check medical image image;
Step 200, monitoring thread are carried out paging with the image in enormous quantities in this document folder, form page table; Described paging is a lot of width of cloth medical image datas of a patient to be numbered according to image sequence carry out paging; Fig. 2 is a kind of embodiment that several medical image datas of certain patient is carried out paging formation page table according to the image sequence numbering; Show N page or leaf figure among this figure and (only represented to show the figure of the 1st page, the 2nd page and N page or leaf among the figure; All the other omissions), described each page comprises at least one complete image, has for example put two width of cloth figure for the 1st page; Put a width of cloth figure for the 2nd page, the N page or leaf has been put 4 width of cloth figure.The complete image of described in the present embodiment every is all less than 1024 * 1024 matrixes;
Step 300, set up image and read memory block;
Step 400, put into image with certain page in the page table and read the initial read page of memory block, supply display preferentially to show as acquiescence;
Step 500, monitoring thread be according to this instruction corresponding image page number pointed in the instruction indication query unit inquiry page table, and the image page of this image page number that inquires is read into the image that step 300 sets up reads in the memory block.The method of concrete inquiry is the logic breakpoint that in monitoring thread, adds execution, when the local update mode value that implements instruction corresponding image page number pointed is instruction corresponding image page number pointed, keeps watch on this state value of inspection then;
Step 600, because the image that medical imaging equipment is taken is not 8 a gray level image, therefore before the display display image, also comprise and carry out pre-service putting into the current images that image reads memory block; Described image pre-service is that for example 10,12,16 gray level image mapping treatment is become 8 gray level image.
The mapping formula is following:
y?=?[?(x?-?(min?-?0.5)?]?/?(max-1)?+?0.5)?×255；
Wherein x is the pixel value of the pixel of current pretreatment image,
Min be the minimum of current pretreatment image to the element value,
Max is the max pixel value of current pretreatment image,
Y is the pixel value of the current pretreatment image after shining upon,
0.5 with 255 are constants that the present invention sets.
Can be processed into 8 to all pixels of all kinds of images of medical imaging equipment shooting through above-mentioned formula and show, thereby reach reading speed and EMS memory occupation still less faster.
Step 700, pretreated current page image is selected as current reading demonstration page or leaf supplies display to show; Order the non-current page image file of capacity in the backstage release busy image memory piece simultaneously;
Step 800, display show the image of current page;
Step 900, circulation step 500 finish until this this time reading to step 800.
With a concrete embodiment method that medical image file in enormous quantities of the present invention quickens to read is further described below:
For example patient Zhang San produces 2000 width of cloth images (size of every width of cloth image is the 512X512 matrix) after accomplishing 64 row's CT examinations; The doctor chooses the file of this patient's of set medical image data; Monitoring thread monitors the header of the document of being chosen by the doctor; Image to the document carries out paging according to sequence numbering, forms page table, is stored in the internal memory of system.Set up image simultaneously and read memory block, and with certain page in the page table for example first page put into image and read the initial read page of memory block as acquiescence, after the image pre-service, supply display preferentially to show; When the doctor wanted picture with the aid of pictures, what preferentially see was the initial read page of acquiescence.When the doctor will see the image of other page numbers, monitoring thread was according to instruction inquiry and obtain this instruction corresponding image page number pointed from the image page table, and the image of this updated images page number is read into image read in the memory block, and carried out pre-service; It is chosen as current read page the non-current page image file of capacity in the backstage release busy of the image memory administrative unit order simultaneously image memory piece by the image memory administrative unit; Constantly circulation; Read a width of cloth or a few width of cloth image that all has only current page in the memory block all the time at image, so just significantly reduced the consumption of internal memory, under the prerequisite that does not increase hardware investment; Can improve the reading speed of image in enormous quantities effectively, reduce dependence the computer hardware performance.
Claims (10)
1. the method that medical image file in enormous quantities quickens to read is characterized in that, may further comprise the steps:
1), user end to server initiates to obtain the header request of target image file folder;
2), monitoring thread is carried out paging, pagination according to the header request with the image in enormous quantities in this target image file folder, the formation page table;
3), set up image and read memory block;
4), putting into image with certain page in the page table reads the initial read page of memory block as acquiescence, the initial display image of confession display conduct;
5), in business process, monitoring thread is according to instruction this instruction of inquiry image page number pointed in page table, and the image page of this corresponding image page number that inquires is read into the image that step 3 sets up as current read page reads in the memory block;
6), carry out pre-service to putting into the image that image reads the memory block current page;
7), that pretreated current page image is selected as current reading demonstration page or leaf, the demonstration of confession display; Order the non-current page image file of capacity in the backstage release busy image memory piece simultaneously;
8), display shows that current reading shows the image of page or leaf;
9), circulation step 5～step 8, finish until this time reading.
2. the method that a kind of medical image file acceleration in enormous quantities according to claim 1 is read is characterized in that the described target image file folder of step 1 is meant the set of some patients' that the doctor prepares to check medical image image.
3. the method that a kind of medical image file acceleration in enormous quantities according to claim 1 is read is characterized in that, the described paging of step 2 is a patient's multiple image file to be numbered according to image sequence carry out paging.
4. quicken the method that reads according to claim 1 or 3 described a kind of medical image files in enormous quantities, it is characterized in that described each image page comprises at least one complete image.
5. the method that a kind of medical image file acceleration in enormous quantities according to claim 6 is read is characterized in that described every complete image is all less than 1024 * 1024 matrixes.
6. the method that a kind of medical image file acceleration in enormous quantities according to claim 1 is read is characterized in that described image pre-service is that 10,12,16 the gray level image mapping treatment that image documentation equipment is taken is become 8 gray level image.
7. the method that a kind of medical image file acceleration in enormous quantities according to claim 6 is read is characterized in that the formula that described image mapped is handled is following:
y?=?[?(x?-?(min?-?0.5)?]?/?(max-1)?+?0.5)?×255；
Wherein x is the pixel value of the pixel of current pretreatment image,
Min be the minimum of current pretreatment image to the element value,
Max is the max pixel value of current pretreatment image,
Y is the pixel value of the current pretreatment image after shining upon,
0.5 with 255 are constants of setting.
8. the system that medical image file in enormous quantities quickens to read is characterized in that, comprising:
Image is carried out the monitoring thread of monitoring management;
Image in the destination folder is carried out the page table that paging forms;
Need the query unit of images displayed according to instruction inquiry in page table;
The image memory piece of the present image page or leaf that storage is obtained by inquiry;
Image to preparing to read carries out pretreated image pretreatment unit; And,
The display that shows pretreated present image.
9. the system that a kind of medical image file acceleration in enormous quantities according to claim 8 is read; It is characterized in that; Also comprise an image memory administrative unit in the described image memory piece; This image memory administrative unit is made as read page with the image page or leaf that current inquiry obtains, and supplies display to show, orders the backstage to discharge the non-current page image of shared image memory piece memory size simultaneously.
10. the system that a kind of medical image file acceleration in enormous quantities according to claim 8 is read is characterized in that described image pre-service is that 10,12,16 the gray level image mapping treatment that image documentation equipment is taken is become 8 gray level image;
The formula that described image mapped is handled is following:
y?=?[?(x?-?(min?-?0.5)?]?/?(max-1)?+?0.5)?×255；
Wherein x is the pixel value of the pixel of current pretreatment image,
Min be the minimum of current pretreatment image to the element value,
Max is the max pixel value of current pretreatment image,
Y is the pixel value of the current pretreatment image after shining upon,
0.5 with 255 are constants of setting.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106161923A (en) * | 2015-04-23 | 2016-11-23 | 上海勤翔科学仪器有限公司 | A kind of image superposition and staged care system and method |
| CN106295149A (en) * | 2016-07-05 | 2017-01-04 | 医诚云（北京）医疗科技有限公司 | Cloud/the digital film of a kind of medical image and cloud diagosis system |
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| CN101059949A (en) * | 2007-04-03 | 2007-10-24 | 广东威创日新电子有限公司 | Mass image data compression, storage and display method |
| CN101251874A (en) * | 2008-03-17 | 2008-08-27 | 吕江 | Method for speeding up reading velocity of bulk of medicine images |
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Patent Citations (3)
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| CN1928871A (en) * | 2006-09-07 | 2007-03-14 | 北京优纳科技有限公司 | Big capacity image fast browsing system |
| CN101059949A (en) * | 2007-04-03 | 2007-10-24 | 广东威创日新电子有限公司 | Mass image data compression, storage and display method |
| CN101251874A (en) * | 2008-03-17 | 2008-08-27 | 吕江 | Method for speeding up reading velocity of bulk of medicine images |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106161923A (en) * | 2015-04-23 | 2016-11-23 | 上海勤翔科学仪器有限公司 | A kind of image superposition and staged care system and method |
| CN106161923B (en) * | 2015-04-23 | 2019-04-26 | 上海勤翔科学仪器有限公司 | A kind of superposition of image and classification processing system and method |
| CN106295149A (en) * | 2016-07-05 | 2017-01-04 | 医诚云（北京）医疗科技有限公司 | Cloud/the digital film of a kind of medical image and cloud diagosis system |
| CN106295149B (en) * | 2016-07-05 | 2018-10-09 | 亢铮 | A kind of cloud/the digital film and cloud diagosis system of medical image |
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Application publication date: 20120516 |