CN101732072A - Movie file playback and secondary storage method suitable for ultrasonic diagnostic equipment - Google Patents
Movie file playback and secondary storage method suitable for ultrasonic diagnostic equipment Download PDFInfo
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- CN101732072A CN101732072A CN200910213218A CN200910213218A CN101732072A CN 101732072 A CN101732072 A CN 101732072A CN 200910213218 A CN200910213218 A CN 200910213218A CN 200910213218 A CN200910213218 A CN 200910213218A CN 101732072 A CN101732072 A CN 101732072A
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Abstract
The invention discloses a movie file playback and secondary storage method suitable for ultrasonic diagnostic equipment, which comprises that: when a system is in a frozen state, a user can start a movie playback mode for a cursor shifting control device, and the system can automatically analyze the playback mode according to the operation method of the user for the cursor shifting control device, namely determines order playback or reversed order playback according to the cursor shifting direction and judges continuous play or frame-by-frame play according to the cursor shifting speed; in a playback state, the user also can use the cursor to quickly and flexibly adjust and convert the playback mode according to the actual need; and in a movie playback state, the user can freely intercept the needed part in the image data of a current movie playback memorizer to perform secondary storage, rather than only store all the image data of the current movie playback memorizer in one movie file. Therefore, the method can efficiently utilize the limited storage space and avoid resource waste.
Description
Technical field
The present invention relates to a kind of playback and storage means of image data file, especially a kind of playback and secondary storage method that is applicable to the movie file of ultrasonic diagnostic equipment.
Background technology
In ultrasonic diagnostic equipment, the function of cineloop refers to: obtain view data during real time scan and deposited in the memorizer simultaneously, the user can reappear the view data in the memorizer on display device under freezing situation.The cineloop function is the important means of ultrasonic diagnosis.
Existing ultrasonic diagnostic equipment can be divided into two kinds of duties: real time scan state and frozen state.Under the real time scan state, scanning also shows real time imaging, simultaneously view data is kept in the cineloop memorizer.Under the frozen state,, then show the image of last frame if be not activated cineloop; If the startup cineloop, the view data of storage before then from the cineloop memorizer, taking out, the image that produces under the playback real-time status.The Starting mode of cineloop generally is to control by menu selection or other control, and playback speed generally is changeless, begins order by first frame and plays continuously.The storage of movie file then is to freeze under the situation, and view data all in the cineloop memorizer is saved as a movie file, can not select or deletes file content.
Because movie file takes up room bigger, and the view data majority in each cineloop memorizer does not have diagnostic value, the user is for parts of images data wherein and have to all images data are all deposited into movie file together, the consequence that causes like this be the storage movie file in major part be unworthy view data, significant wastage finite storage space.
And when carrying out cineloop, the user can only carry out sequential playback, wants rollback to examine and when comparing, also inconvenience is operated if run into valuable image in replayed section; Moreover, because playback frame by frame very likely makes the user miss the image of diagnostic value and cause the mistaken diagnosis accident because playback speed is too fast.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of movie file playback and secondary storage method that is applicable to ultrasonic diagnostic equipment is provided, the user is under frozen state, can only use the cursor mobile controller to start the cineloop operation, and, comprise sequential playback and backward playback, playback and playback frame by frame continuously according to the different cineloop mode of mode of operation selection to the cursor mobile controller.And under the cineloop state, can intercept a part of view data in the cineloop memorizer according to actual needs, but be stored as the movie file of repeatable operation.
According to technical scheme provided by the invention, the movie file playback method of described ultrasonic diagnostic equipment may further comprise the steps:
Steps A 2, ultrasonoscopy diagnostic device detect the cursor displacement signal, at first judge the cursor direction of displacement, if detect displacement left, and execution in step A3 then, if detect to the right displacement, execution in step C3 then;
Steps A 3 detects the size of cursor displacement, and compares with system given setting value, if greater than setting value, and execution in step A4 then, otherwise execution in step B4;
Steps A 4 is calculated the number of image frames n of the movie file of needs playback according to described displacement;
Steps A 5, the n two field picture that calculates among the backward replay procedure A4;
Steps A 6 judges whether to detect and withdraws from the cineloop mode signal, if then withdraw from the cineloop pattern, end operation; Otherwise return execution in step A2;
Step B4, a two field picture of backward playback movie file, execution in step A6 then;
Step C3 detects the size of cursor displacement, and compares with system given setting value, if greater than setting value, and execution in step C4 then, otherwise execution in step D4;
Step C4, all images in the continuous movie file memory of circular order promptly after being played back to the last frame image, continue to play since first frame again; While execution in step A6;
Step D4, a two field picture of systematic order movie file, execution in step A6 then.
A kind of movie file storage means of ultrasonic diagnostic equipment is sampled to the view data that real time scan collects, and the view data that will obtain after will sampling again deposits the movie file memorizer in, uses linear interpolation algorithm as the image interpolation method in the sampling process.
A kind of alternative secondary storage method of movie file of ultrasonic diagnostic equipment in the movie file playback process, by specifying original position and final position, saves as a complete movie file with the picture frame between original position and the final position.
Described appointment original position and final position are to trigger by a push button signalling; When receiving push button signalling the 2N-1 time, triggering be to confirm the original position signal; When receiving push button signalling the 2N time, triggering be to confirm the final position signal; N is a natural number.
When receiving preservation movie file signal, will specify the picture frame between original position and the final position to save as a complete movie file.
Advantage of the present invention is: under frozen state, the user only uses the cursor mobile controller just can operate the cineloop function, and can control the cineloop mode flexibly, broadcast continuously, broadcast frame by frame, backward are play and can both fast be obtained, convenient like this operation flexibly is not only user-friendly, more can reduce to regulate and miss the image of valuable diagnosis, thereby cause the probability of mistaken diagnosis because of playback mode inconvenience.And under the cineloop state, can also intercept valuable movie file according to actual needs and store, reduce the space resources waste.
Description of drawings
Fig. 1 is the system block diagram of ultrasonic diagnostic equipment of the present invention.
Fig. 2 is the flow chart of movie file playback method of the present invention.
Fig. 3 is the flow chart of movie file secondary storage method of the present invention.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1: ultrasonic diagnostic equipment of the present invention is provided with the cineloop memorizer between signal processing module and image forming module.
As shown in Figure 2, cineloop method of the present invention is as follows in detail:
Steps A 1, the user presses " FREEZE " button on the lower keyboard, makes system enter frozen state, operates cursor mobile controller moving cursor then and starts the cineloop pattern;
Steps A 2, system detect the cursor displacement signal, at first detect the cursor direction of displacement, if detect displacement left, and execution in step A3 then, if detect to the right displacement, execution in step C3 then;
Steps A 3, system detect the size of cursor displacement, and compare with system given setting value, if greater than setting value, and execution in step A4 then, otherwise execution in step B4; Described setting value is to set in advance, only be used to judge the cursor amount of displacement and confirm user's input instruction, the back with.
Steps A 4, the number of image frames of needs playback is calculated according to displacement by system, is assumed to be the n frame; Execution in step A5;
Steps A 5, the n two field picture that calculates among the backward replay procedure A4 of system, execution in step A6 then;
Steps A 6, system judge whether to detect and withdraw from the cineloop mode signal, if detect this signal, then withdraw from the cineloop pattern, end operation; Do not withdraw from signal if detect, then return execution in step A2;
Step B4, system's backward playback one two field picture, execution in step A6 then;
Step C3, system detect the size of cursor displacement, and compare with setting value, if greater than setting value, and execution in step C4 then, otherwise execution in step D4;
Step C4, all images in the continuous movie file memory of systemic circulation order promptly after being played back to the last frame image, continue to play since first frame again; While execution in step A6;
Step D4, systematic order is play a two field picture, then execution in step A6;
In aforesaid operations, when system is in frozen state, the user only needs operate cineloop by control cursor mobile controller.
Below, movie file selectivity secondary methods of storage operating of the present invention is illustrated by another embodiment and in conjunction with the accompanying drawings 3:
Step e 1, the user uses foregoing operational approach to start cineloop, makes system enter playback state, and this moment, cursor moved on the playback show bar;
Step e 2, when cursor moved to the image of wanting to begin to preserve, the user pressed the SET key, determined to preserve original position s---s two field picture position in the cineloop memorizer;
Step e 3 keeps the cineloop state, and when being played back to the image of wanting to finish to preserve, the user presses the SET key once more, determines to preserve final position t---t two field picture in the cineloop memorizer;
Step e 4 if the user confirms that the storage area is the image in s-t interval, is then pressed the SAVE button and is triggered preservation movie file signal.System detect to preserve the movie file signal, if receive this signal, and execution in step E5 then; Otherwise return execution in step E2;
Step e 5, the size of s and t is judged by system; If s＜=t, execution in step E6 then, otherwise execution in step F6;
Step e 6, preserving from s two field picture to the t two field picture is a complete movie file.EO.
Step F 6, preserving from t two field picture to the s two field picture is a complete movie file.EO.
At the real time scan state, the view data that deposits the cineloop memorizer in might not be equal to all data that actual scanning obtains fully.The explanation of giving an example: if actual frame frequency is 100 frames/s, promptly collect 100 frame image datas each second, if preserve all images data that collect in 10 seconds, just 1000 frame image datas.This need consume and account for very big space, and the space of cineloop memorizer is relatively limited, if preserve all view data under the higher situation of frame frequency, then can only preserve the view data in very short time.And concerning the doctor, general hope can be preserved view data slightly for a long time, and the frame frequency of 100 frames/s there is no too big meaning aspect the clinical use, because 0.01 second sampling interval almost can ignore with respect to the real change of image, a lot of the sampling interval images of wanting usually just can really change.In other words, major part all is multiple redundant data in the view data of actual acquisition.In order rationally to utilize the resource of cineloop memorizer, and meet clinical needs, certainly will will screen the cineloop memorizer of restoring the view data that collects.The present invention is a head it off, provides following method: carrying out film when storage, at first according to frame frequency view data is taked sampling, make the picture frame frequency after the sampling constant, suppose to be set to M frame/s, actual frame frequency is R frame/s, and sampling frequency is R/M so.Such as the variation frame frequency of setting the cineloop file is 25 frames/s, and the actual frame frequency during real time scan is 100 frames/s, the view data that obtains of then sampling is that scanning collection is to 1/4 of view data, 1st, 5, the 9...... frame image data deposited in the cineloop memorizer, other view data then do not deposit in; When the value of R/M was non-integer, theoretic abstract image was a virtual image, and such as the 2.3rd frame, 4.6 frames or the like, and in fact such virtual image data do not exist.For obtaining depositing in the view data of cineloop memorizer, the present invention adopts a kind of image interpolation algorithm---and linear interpolation method solves this problem.Interpolation method is as described below:
Now linear interpolation algorithm is done concise and to the point the description: the respective pixel value of at first supposing adjacent two two field pictures is a linear change, such as coordinate on m frame (m the is an integer) image is (i, the pixel value of pixel j) is f (i, j), coordinate is that (i, the pixel value of pixel j) are g (i on the m+1 two field picture, j), on so virtual m+k (0＜=k＜1) two field picture coordinate be (i, the pixel value of pixel j) be I (i, j) can be by formula:
I(i，j)＝k×g(i，j)+(1-k)×f(i，j)
Obtain.So just obtained all and deposited the view data of cineloop memorizer in, rationally utilized the resource of cineloop memorizer thereby reached to solve, and the purpose that meets clinical needs.
Claims (5)
1. the movie file playback method of a ultrasonic diagnostic equipment is characterized in that, said method comprising the steps of:
Steps A 2, ultrasonoscopy diagnostic device detect the cursor displacement signal, at first judge the cursor direction of displacement, if detect displacement left, and execution in step A3 then, if detect to the right displacement, execution in step C3 then;
Steps A 3 detects the size of cursor displacement, and compares with system given setting value, if greater than setting value, and execution in step A4 then, otherwise execution in step B4;
Steps A 4 is calculated the number of image frames n of the movie file of needs playback according to described displacement;
Steps A 5, the n two field picture that calculates among the backward replay procedure A4;
Steps A 6 judges whether to detect and withdraws from the cineloop mode signal, if then withdraw from the cineloop pattern, end operation; Otherwise return execution in step A2;
Step B4, a two field picture of backward playback movie file, execution in step A6 then;
Step C3 detects the size of cursor displacement, and compares with system given setting value, if greater than setting value, and execution in step C4 then, otherwise execution in step D4;
Step C4, all images in the continuous movie file memory of circular order promptly after being played back to the last frame image, continue to play since first frame again; While execution in step A6;
Step D4, a two field picture of systematic order movie file, execution in step A6 then.
2. the movie file storage means of a ultrasonic diagnostic equipment, it is characterized in that, the view data that real time scan collects is sampled, and the view data that will obtain after will sampling again deposits the movie file memorizer in, uses linear interpolation algorithm as the image interpolation method in the sampling process.
3. the alternative secondary storage method of the movie file of a ultrasonic diagnostic equipment, it is characterized in that, in the movie file playback process,, the picture frame between original position and the final position is saved as a complete movie file by specifying original position and final position.
4. the alternative secondary storage method of the movie file of a kind of ultrasonic diagnostic equipment as claimed in claim 3 is characterized in that described appointment original position and final position are to trigger by a push button signalling; When receiving push button signalling the 2N-1 time, triggering be to confirm the original position signal; When receiving push button signalling the 2N time, triggering be to confirm the final position signal; N is a natural number.
5. the alternative secondary storage method of the movie file of a kind of ultrasonic diagnostic equipment as claimed in claim 3, it is characterized in that when receiving preservation movie file signal, will specifying the picture frame between original position and the final position to save as a complete movie file.
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| US20080155413A1 (en) * | 2006-12-22 | 2008-06-26 | Apple Inc. | Modified Media Presentation During Scrubbing |
| CN102641134A (en) * | 2011-02-18 | 2012-08-22 | 西门子公司 | Method and device for obtaining and transmitting ultrasonic image information in remote diagnosis |
| CN104248449A (en) * | 2013-06-28 | 2014-12-31 | 通用电气公司 | Method and equipment for detecting initial frame, playback contrast method, playback contrast equipment and ultrasonic machine |
| US9280262B2 (en) | 2006-12-22 | 2016-03-08 | Apple Inc. | Select drag and drop operations on video thumbnails across clip boundaries |
| US9959907B2 (en) | 2006-12-22 | 2018-05-01 | Apple Inc. | Fast creation of video segments |
| CN113506608A (en) * | 2021-06-25 | 2021-10-15 | 青岛海信医疗设备股份有限公司 | Ultrasonic film processing method and ultrasonic equipment |
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| US20080155413A1 (en) * | 2006-12-22 | 2008-06-26 | Apple Inc. | Modified Media Presentation During Scrubbing |
| US8943410B2 (en) * | 2006-12-22 | 2015-01-27 | Apple Inc. | Modified media presentation during scrubbing |
| US9280262B2 (en) | 2006-12-22 | 2016-03-08 | Apple Inc. | Select drag and drop operations on video thumbnails across clip boundaries |
| US9335892B2 (en) | 2006-12-22 | 2016-05-10 | Apple Inc. | Select drag and drop operations on video thumbnails across clip boundaries |
| US9830063B2 (en) | 2006-12-22 | 2017-11-28 | Apple Inc. | Modified media presentation during scrubbing |
| US9959907B2 (en) | 2006-12-22 | 2018-05-01 | Apple Inc. | Fast creation of video segments |
| CN102641134A (en) * | 2011-02-18 | 2012-08-22 | 西门子公司 | Method and device for obtaining and transmitting ultrasonic image information in remote diagnosis |
| CN104248449A (en) * | 2013-06-28 | 2014-12-31 | 通用电气公司 | Method and equipment for detecting initial frame, playback contrast method, playback contrast equipment and ultrasonic machine |
| CN104248449B (en) * | 2013-06-28 | 2018-11-20 | 通用电气公司 | Detect method and apparatus, playback control methods and the equipment and ultrasonic machine of start frame |
| CN113506608A (en) * | 2021-06-25 | 2021-10-15 | 青岛海信医疗设备股份有限公司 | Ultrasonic film processing method and ultrasonic equipment |
| CN113506608B (en) * | 2021-06-25 | 2024-03-19 | 青岛海信医疗设备股份有限公司 | Ultrasonic film processing method and ultrasonic equipment |
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Assignee: Xiangsheng Medical Image Co., Ltd., Wuxi Assignor: Wuxi Chison Science and Technology Co., Ltd. Contract record no.: 2010320001085 Denomination of invention: Movie file playback and secondary storage method suitable for ultrasonic diagnostic equipment License type: Exclusive License Open date: 20100616 Record date: 20100816 |
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Effective date of registration: 20200331 Address after: The Yangtze River Road 214028 Jiangsu city of Wuxi Province, the new Industrial Park Wu District Five period of 51, No. 53, block No. 228 Patentee after: WUXI CHISON MEDICAL TECHNOLOGIES Co.,Ltd. Address before: 214142 Jiangsu province Wuxi New Area Shuofang town Xiangnan Road No. 8 Patentee before: WUXI XIANGSHENG TECHNOLOGY Co.,Ltd. |
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