JP2006094913A - System, method and program for recording medical dynamic image - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system, a method, and a program for recording medical dynamic images for improving responsiveness of other operations during encoding processing by reducing a load of the encoding processing if a CPU load factor is equal to or more than a prescribed value. <P>SOLUTION: The load on the CPU is reduced by monitoring the CPU load factor for implementing encoding processing of the medical dynamic images in real time and by implementing encoding processing through reducing the amount of information on the medical dynamic image when the load factor is equal to or more than the threshold value. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a medical moving image recording system, a medical moving image recording method, and a medical moving image recording program for encoding a plurality of continuously collected medical moving images, and more particularly to encoding within a medical diagnostic apparatus main body. It is used when recording and recording.

  Conventionally, when a medical image (hereinafter referred to as a medical moving image) as a moving image obtained by a medical diagnostic apparatus such as an ultrasonic diagnostic apparatus is recorded, the medical moving image is recorded on a recording medium such as a video tape cassette. Therefore, a filing system in which an external storage device such as a video cassette recorder (VCR) is connected to the medical diagnostic device is generally constructed.

  In recent years, since the medical moving image to be recorded has an enormous amount of information, the image information constituting the medical moving image is digitized in order to reduce the amount of data occupied in the storage means. The work of encoding (compression) conversion in real time has become possible and important.

Specifically, this recording operation was performed according to the following flow.
(1) Setting of recording quality of medical moving images.
(2) Start recording of medical moving images.
(3) Setting of observation mode.
(4) Start shooting.
(5) Adjust the gain and contrast while viewing the image.
(6) An image used for inspection is taken.
(7) Repeat (5) to (6) above.
(8) Repeat (3) to (7) above.
(9) End of recording of medical moving image.

  However, since the encoding process in real time has a very high load on the CPU that performs the encoding process, during the encoding process, as an interrupt operation, determination of the observation mode ((3) above), gain Alternatively, when the user performs contrast adjustment ((5) above), the CPU must also execute processing for these interrupt operations, which is burdensome and results in processing other than encoding processing (interrupt There was a problem that the responsiveness of processing (including processing) was deteriorated.

Processing Specifically, as shown in FIG. 6, if the encoding process has been performed at a load factor l ₀ per unit time (FIG. 6 (a)), by an interrupt operation (t 1 _{~t 2)} During the same period (t _{1 to} t ₂ ), the encoding process is performed with the load factor per unit time being l ₁ (l ₁ > l ₀ ) (FIG. 6B).

  As a method for solving this problem, a procedure for manually starting and stopping the recording of medical moving images by operating a switch or the like is conceivable. However, the operation becomes troublesome, and the recording of shredded recording is managed. It becomes necessary to do.

  Here, the image used for the inspection in (6) needs to be recorded with high image quality, but during the input of recording conditions by the user, such as (3) and (5) above. These images are less important to be recorded with high image quality.

  Therefore, without stopping the recording of medical moving images, maintaining the image quality in a scene that is recorded with high image quality while providing a margin in the operation area of the CPU (reducing the load), the medical moving image recording There was a need to increase the responsiveness of the system.

  In addition, since it is desirable that the interrupt operation be processed promptly, it is possible to increase the responsiveness of the medical moving image recording system and increase the processing time by giving a margin to the operation area of the CPU (lightening the load). It was demanded to shorten.

  The present invention has been made in view of the above problems, and its purpose is to reduce the load of the encoding process when the load factor of the CPU exceeds a predetermined value in the encoding process of the medical moving image. It is an object of the present invention to provide a medical moving image recording system, a medical moving image recording method, and a medical moving image recording program that improve the responsiveness of other operations during the encoding process by reducing them.

  In order to solve the above-mentioned problem, the medical moving image recording system according to the first aspect of the present invention includes a medical diagnostic apparatus and an input for a user to input a recording condition of the medical moving image acquired by the medical diagnostic apparatus. Means for processing the medical moving image based on the recording condition, encoding means for encoding the medical moving image, and storing the medical moving image encoded by the encoding means. A storage unit, a load detection unit configured to monitor the load factor applied to the CPU, and detect that the load factor is equal to or higher than a preset threshold value. When the load detecting means detects that the load factor is equal to or greater than the threshold value, the encoding means for controlling the encoding means so as to reduce the information amount of the medical moving image for encoding. And having a controlling means.

  In order to solve the above problem, the medical moving image recording system according to the second aspect of the present invention is the medical moving image recording system according to the first aspect, wherein the encoding control means includes an information amount of the medical moving image. After the control of the encoding means so as to reduce and encode, when the load detection means detects that the load factor is less than the threshold value, the medical moving image with the amount of information before the reduction is made The encoding control means controls the encoding means so as to encode an image.

  In order to solve the above-mentioned problem, the medical moving image recording system according to the invention described in claim 3 is the medical moving image recording system according to claim 1, wherein the encoding control means includes an information amount of the medical moving image. The encoding unit is configured to encode the medical moving image with an information amount before the amount of information to be encoded is reduced after a predetermined time has elapsed after controlling the encoding unit so as to reduce the encoding. There is provided delay means for executing the control of the encoding control means for a predetermined time later.

  A medical moving image recording system according to a fourth aspect of the present invention for solving the above-described problem is a table in which the information amount and the image quality are associated with each other in the medical moving image recording system according to any one of the first to third aspects. Is stored in the storage means, and the amount of information to be reduced is an amount of information corresponding to a preset minimum image quality.

  In order to solve the above problem, a medical moving image recording method according to claim 5 is an input process in which a user inputs recording conditions for a medical moving image acquired by a medical diagnostic apparatus, and the input An input information processing process for processing the medical moving image by the CPU according to a recording condition, a first encoding process for encoding the medical moving image by the CPU, and the encoded medical moving image are stored. And a load detecting process for monitoring a load factor generated in the CPU in the first encoding process and the input information processing process, and detecting that the load factor is equal to or higher than a preset threshold value; When it is detected that the load factor generated by the first encoding process and the input information processing process is greater than or equal to a preset threshold value, the information amount is changed instead of the first encoding process. Low And having a second encoding process of encoding the medical moving image by.

  In order to solve the above-mentioned problem, the medical moving image recording method according to the invention described in claim 6 detects that the load factor is less than the threshold in the medical moving image recording method according to claim 5. Sometimes, the second encoding process is shifted to the first encoding process.

  In order to solve the above problem, the medical moving image recording method according to the invention of claim 7 detects that the load factor is less than the threshold in the medical moving image recording method of claim 5. Sometimes, after a predetermined time elapses, the process shifts to the first encoding process.

  The medical moving image recording method according to an eighth aspect of the present invention for solving the above-described problem is the medical moving image recording method according to any one of the fifth to seventh aspects, wherein the amount of information to be reduced is set in advance. It is characterized in that the information amount corresponds to the minimum image quality.

  In order to solve the above problem, a medical moving image recording program according to the invention described in claim 9 is processed by the CPU in response to the recording condition of the medical moving image acquired by the medical diagnostic apparatus being input by the user. An input information processing process, a first encoding process for encoding the medical moving image by a CPU, a storing process for storing the encoded medical moving image, and the first encoding process And a load detection process for monitoring a load factor generated in the CPU during the input information processing process, and detecting that the load factor is equal to or higher than a preset threshold value, the first encoding process, and the input information process. When it is detected that the load factor generated by the process is greater than or equal to a preset threshold value, the medical moving image is encoded by reducing the information amount instead of the first encoding process. Characterized in that to function and the second coding process to the computer.

  In order to solve the above problem, the medical moving image recording program according to the invention described in claim 10 detects that the load factor is less than the threshold in the medical moving image recording program according to claim 9. Sometimes, the second encoding process is shifted to the first encoding process.

  In order to solve the above problems, the medical moving image recording program according to the invention described in claim 11 detects that the load factor is less than the threshold in the medical moving image recording program according to claim 9. Sometimes, after a predetermined time elapses, the process shifts to the first encoding process.

  In order to solve the above-mentioned problem, the medical moving image recording program according to the invention described in claim 12 is the medical moving image recording program according to any one of claims 9 to 11, wherein the information amount to be reduced is set in advance. It is characterized in that the information amount corresponds to the minimum image quality.

  According to the present invention, during a real-time encoding process of a medical moving image, the load factor of a CPU that executes the encoding process is monitored, and the encoding process is triggered when the load factor exceeds a threshold value. Since the load on the CPU is reduced by suppressing the information amount of the medical moving image to be performed, the responsiveness of the CPU can be improved while maintaining the image quality in the section where high recording image quality is required. Moreover, since the recording of medical images is not stopped, the troublesome management can be reduced. In addition, as an interrupt operation, for example, when it is detected that an observation mode in which high recording image quality is not required or an input operation related to setting of gain and contrast is detected, the information amount of the medical moving image to be encoded is set. Since the CPU load is reduced by the suppression, the responsiveness of the CPU can be improved while maintaining the image quality in the section where high recording image quality is required.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram showing a configuration of a first embodiment of a medical moving image recording system according to the present invention.

  As shown in FIG. 1, the medical moving image recording system of the present embodiment includes a medical diagnostic device 100 as an ultrasonic diagnostic device that acquires a medical moving image, and the medical moving image transmitted from the medical diagnostic device 100. The CPU 12 performs encoding processing, stores the information in the storage unit 3, processes various information input by the user using the input unit 2, and monitors the load factor applied to the CPU 12. The load factor is set in advance. Load detecting means 11 for detecting that the threshold value is exceeded, and encoding control means 13 for controlling the encoding process executed in the CPU 12 (encoding means 122 described later) under predetermined conditions. Composed. Here, the CPU 12 is illustrated as a separate body from the load detection unit 11 and the encoding control unit 13, but the load detection unit 11 and / or the encoding control unit 13 may be included in the CPU 12. The medical diagnostic apparatus 100 is a medical diagnostic apparatus that needs to acquire recorded images over time, such as the ultrasonic diagnostic apparatus described above. The system may be included in the medical diagnostic apparatus 100. In this case, the medical diagnostic apparatus 100 functions as a medical moving image collection unit that collects medical moving images.

  The CPU 12 includes an operation processing unit 121 that performs processing based on information input by the input unit 2, and an encoding unit 122 that performs encoding processing on the medical image transmitted from the medical diagnostic apparatus 100. The means 13 controls the encoding process performed by the encoding means 122 under predetermined conditions. Here, the operation processing unit 121 is a medical device that is transmitted from the medical moving image collection unit 100 based on information input using the input unit 2 (for example, medical moving image recording conditions such as gain and contrast). It is means for performing image processing of moving images.

  The storage means 3 is a means for recording the medical moving image encoded by the encoding means 13, and in addition, information relating the amount of information to be encoded and the image quality is recorded in advance as a “table”. . According to this table, it is possible to know how much information is to be encoded and how much recording image quality is stored. Conversely, when a minimum recording image quality is desired, encoding according to the recording quality is performed. The amount of information can be related.

  The load detection unit 11 is a unit that monitors the load amount of the CPU 12 generated over time as the operation processing unit 121 and the encoding unit 122 execute processing. Then, whether or not the monitored load rate (load amount per unit time) has exceeded a preset threshold value or whether it has exceeded the threshold value once has been transmitted to the encoding control means 13. It has a function. In the present invention, the load factor is monitored. However, it is more efficient to detect the load amount per unit time than to detect each time a load amount exceeding the threshold value is generated. It may be adopted when it is determined to be appropriate.

  Here, the threshold value may be stored in a non-volatile memory associated with the storage unit 3 or the load detection unit 11 by the user using the input unit 2, and the load detection unit 11 refers to it. Are transmitted to the encoding control means 13.

  Further, the load factor is monitored by the input unit 2 separately from the load detection unit 11 that transmits to the encoding control unit 13 whether the load factor exceeds the threshold value or once exceeded the threshold value. An operation detection unit that detects that work has been performed and transmits the detection to the encoding control unit 13 may be provided.

  This is effective when the load factor applied to the CPU 12 is expected to exceed the threshold value by performing the input operation by the input unit 2 without monitoring the load factor of the CPU 12 by the load detection unit 11. Further, both the operation detection unit and the load detection unit 11 may be provided.

  The encoding control means 13 is a means for instructing the encoding means 122 to encode the medical moving image input from the ultrasound diagnostic apparatus 100 under a predetermined condition. As the predetermined condition, For example, when no information is transmitted from the load detection unit 11 regarding the load factor of the CPU 12, the encoding unit 122 is configured to perform an encoding process (first encoding process) according to a preset amount of information. Instruct.

  Further, when information indicating that the load factor of the CPU 12 has exceeded the threshold value is transmitted from the load detecting means 11, the encoding process (refer to the table stored in the storage means 3 to reduce the information amount) The encoding unit 13 is instructed to perform the second encoding process.

  Further, when information indicating that the load factor of the CPU 12 has decreased below the threshold value is transmitted after exceeding the threshold value, the process proceeds from the second encoding process to the first encoding process. The encoding unit 122 is instructed. The preset amount of information is stored in the storage unit 3 by the user using the input unit 2 in advance, and the encoding control unit 13 refers to the information amount. The instruction is made to the generating means 122.

  Here, the information amount is the information amount of the medical moving image encoded by the encoding unit 122, and “encoding by reducing the information amount” means the information amount of the medical moving image to be encoded, that is, The encoding is performed by reducing the resolution.

  FIG. 2 is a flowchart showing an operation in the first embodiment of the medical moving image recording method according to the present invention. FIG. 3 is a load image diagram in the first embodiment of the medical moving image recording method according to the present invention.

  As shown in FIG. 2, in the present embodiment, first, when the user operates the input unit 2 (presses “monitor start button” or the like), medical moving image information is continuously transmitted from the ultrasonic diagnostic apparatus 100 to the CPU 12. It is transmitted (S1).

  Thereafter, the user inputs information related to the recording image quality setting using the input means 2 (S2).

Then, when the user operates the input unit 2 (presses the “recording start button” or the like), the medical moving image information transmitted from the ultrasonic diagnostic apparatus 100 is encoded according to the information input in S2. The encoding unit 122 performs encoding processing (first encoding processing). Along with this processing, the load detecting means 11 detects the load amount of the CPU 12 in real time (S3). In this case, the load factor of the CPU 12, and has a _{l 0} as shown in FIG. 3 (a).

  Thereafter, the user operates the input means 2 to set the observation mode and adjust the gain or contrast (hereinafter referred to as input operation processing) (S4).

  Then, since the recording of the moving image may end without the load factor exceeding the threshold value, it is determined whether or not a moving image recording end signal is input by the input unit 2 (S5).

On the other hand, by the operation of S4, as shown in FIG. 3 (b), if the load factor of the CPU 12 is increased from _{l 0} to _{l 1} (S6-Yes), this is the load factor applied to the CPU 12, is set in advance Therefore, information indicating that the load factor of the CPU 12 has exceeded the threshold value is transmitted to the encoding control means 13 since the threshold value (l ₀ ) has been reached (exceeded).

The encoding control unit 13 refers to the table of the storage unit 3 and performs an encoding process (first step) in which the amount of information is reduced so that the load factor of the encoding unit 13 becomes l ₂ (see FIG. 3B). The encoding unit 122 is instructed to perform the encoding process 2) (S7). At this time, the information amount obtained by referring to the table is selected as the information amount guaranteed as the minimum image quality. Since there is a positive correlation between the level of image quality, the amount of information to be encoded, and the load and memory bandwidth of the CPU, the load factor of the CPU 12 is reduced by reducing the amount of information to be encoded. l falls below ₁ .

  Here, the encoding control means 13 compares the above information amount with the information amount instructed to the encoding means 122, and if the limit has not been reached, the encoding means 122 sets the information amount one step below. Instruct.

  Thereafter, when the load factor of the CPU 12 remains above the threshold value, the load detection unit 11 continues to transmit to the encoding control unit 13 (S8-Yes).

  The encoding control unit 13 instructs the encoding unit 122 to reduce the information amount until the image quality limit is reached (S8-No).

  Next, when the load detection unit 11 detects that the load factor of the CPU 12 is below the threshold, the load detection unit 11 performs an encoding process based on the information amount originally set in the encoding control unit 13 (that is, The encoding unit 4 is instructed to execute the first encoding process (S9).

In this way, when it is detected that the load factor of the CPU executing the encoding process has increased due to another process interrupting during the real-time encoding process, the information amount of the encoding process is suppressed. As a result, the load on the CPU is reduced, so that the responsiveness of the CPU can be improved while maintaining the image quality in the section where high recording image quality is required. Moreover, since the recording of medical images is not stopped, the troublesome management can be reduced. In particular, since the amount of information of the encoding process is reduced spontaneously in a section (t _{1 to} t ₂ (see FIG. 3B)) where high recording image quality is not required, it is within the processing limit of the CPU. The other processing (input operation processing referred to in the present invention) can be finished as soon as possible.

(Second Embodiment)
Hereinafter, a second embodiment of the medical moving image recording system according to the present invention will be described. FIG. 4 is a block diagram showing the configuration of the second embodiment of the medical moving image recording system according to the present invention.

  As shown in FIG. 4, the medical moving image recording system of the present embodiment includes an ultrasonic diagnostic apparatus 100 as a medical diagnostic apparatus that acquires a medical moving image, and the medical moving image transmitted from the ultrasonic diagnostic apparatus 100. Is encoded and stored in the storage means 3, the CPU 12 that processes various information input by the user using the input means 2, and the load factor applied to the CPU 12 are monitored, and the load factor is set in advance. A load detection unit 11 that detects that the threshold value is exceeded, and an encoding control unit 13 that controls the encoding process executed in the CPU 12 (encoding unit 122 described later) under predetermined conditions. The delay unit 14 delays the instruction to shift from the second encoding process to the first encoding process with respect to the encoding unit 122. Here, as in the above-described embodiment, the medical diagnostic apparatus is a medical diagnostic apparatus that needs to acquire recorded images over time, such as the ultrasonic diagnostic apparatus described above.

  The CPU 12 includes an operation processing unit 121 that performs processing based on information input by the input unit 2 and an encoding unit 122 that performs encoding processing on a medical image transmitted from the ultrasonic diagnostic apparatus 100. The control unit 13 controls the encoding process performed by the encoding unit 122 under predetermined conditions.

  The storage means 3 is a means for recording the medical moving image encoded by the encoding means 13, and in addition, information relating the amount of information to be encoded and the image quality is recorded in advance as a “table”. . According to this table, it is possible to know how much information is to be encoded and how much recording image quality is stored. Conversely, when a minimum recording image quality is desired, encoding according to the recording quality is performed. The amount of information can be related.

  The load detection unit 11 is a unit that monitors the load amount of the CPU 12 generated over time as the operation processing unit 121 and the encoding unit 122 execute processing. Then, it has a function of transmitting to the encoding control means 13 whether the monitored load factor (load amount per unit time) exceeds a preset threshold value or once exceeds a threshold value. is doing.

  Here, the threshold value may be stored in a non-volatile memory associated with the storage unit 3 or the load detection unit 11 by the user using the input unit 2, and the load detection unit 11 refers to it. Are transmitted to the encoding control means 13.

  Further, the load factor is monitored by the input unit 2 separately from the load detection unit 11 that transmits to the encoding control unit 13 whether the load factor exceeds the threshold value or once exceeded the threshold value. An operation detection unit that detects that work has been performed and transmits the detection to the encoding control unit 13 may be provided.

  This is effective when the load factor applied to the CPU 12 is expected to exceed the threshold value by performing the input operation by the input unit 2 without monitoring the load factor of the CPU 12 by the load detection unit 11. Further, both the operation detection unit and the load detection unit 11 may be provided.

  The encoding control means 13 is a means for instructing the encoding means 122 via the delay means 14 to encode the medical moving image input from the ultrasonic diagnostic apparatus 100 under a predetermined condition. As the predetermined condition, for example, when no information is transmitted from the load detection unit 11 regarding the load factor of the CPU 12, an encoding process (first encoding process) corresponding to a preset amount of information is performed. Instruct the encoding means 122 as follows. Further, when information indicating that the load factor of the CPU 12 has exceeded the threshold value is transmitted from the load detecting means 11, the encoding process (refer to the table stored in the storage means 3 to reduce the information amount) The encoding unit 13 is instructed to perform the second encoding process. Further, when information indicating that the load factor of the CPU 12 has decreased below the threshold value is transmitted after exceeding the threshold value, the process proceeds from the second encoding process to the first encoding process. The encoding unit 122 is instructed. The preset amount of information is stored in the storage unit 3 by the user using the input unit 2 in advance, and the encoding control unit 13 refers to the information amount. Indirect instructions are given to the conversion means 122.

  FIGS. 5A to 5C are load image diagrams in the second embodiment of the medical moving image recording method according to the present invention.

This embodiment corresponds to the case where the input operation process is performed several times. As shown in FIG. 5A, for example, when the input operation process is intermittently performed three times (t _{1 to} t ₂ , t _{3 to} t ₄ , t _{5 to} t ₆ ), the above-described embodiment is used. Accordingly, the encoding control means 13 performs the input operation process, and repeats the first encoding process and the second encoding process every time the load factor reaches the threshold value.

  In the case where an ultrasonic diagnostic apparatus is adopted as a medical diagnostic apparatus and a medical moving image obtained thereby is recorded, a gain adjustment operation is frequently used, and this input operation becomes a continuous operation.

  Therefore, in the present embodiment, assuming that there is a high possibility that the input operation process involves a continuous operation, an instruction to shift from the second encoding process to the first encoding process is sent to the encoding unit 122. The delay means 14 is provided between the load detection means 11 and the encoding control means 13.

  The delay means 14 is provided with the encoding control means 13 and the encoding means 122 for the purpose of delaying the instruction to shift from the second encoding process to the first encoding process to the encoding means 122. You may provide between.

The delay means 14 of this embodiment receives the detection signal when the load detection means 11 detects that the load factor of the CPU 12 has fallen below the threshold (S9 in the above-described embodiment), After a predetermined time period (for example, about 1 second; t _{7 to} t ₈ (see FIG. 5B)) has elapsed, it is transmitted to the encoding control means 13 that the load factor of the CPU 12 has fallen below the threshold value. .

In response to this, the encoding control means 13 instructs the encoding means 122 to shift from the second encoding process that has been executed so far to the first encoding process. Its timing is _{t 9} in FIG. 5 (b). As can be seen from this figure, the load on the encoding process is reduced.

As described above, the instruction to shift from the second encoding process to the first encoding process is delayed by the delay unit 14 in accordance with an input operation that is assumed to be a continuous operation. If there is three successive input operation so, it is possible to reduce the load on the coding process between t ₁ ~t _10.

  Among the input operations performed by the user using the input unit 2, for example, the printing operation is highly important as the recording image quality. During this input operation process, the decrease in the amount of information to be encoded is encoded. It is not preferable to instruct 122.

  Therefore, as another example of the present embodiment, the input operation processing unit 121 is provided with a determination unit that determines which input operation process is selected by the user, and only when a predetermined input operation is determined, The processing unit 121 may cause the encoding control unit 13 to prohibit control of the encoding unit 122.

  Here, the predetermined input operation refers to an input operation accompanied by processing with high importance of recording image quality, such as the above-described printing operation.

  The medical moving image recording program according to the present invention is configured by configuring the operation of the medical moving image recording method described above as a program, and the embodiment includes functions of a load detecting unit, an encoding control unit, and a delay unit. Is executed by the CPU 12.

  Alternatively, the operation of the medical moving image recording method described above configured as a program may be recorded on a recording medium and the contents of the recording medium may be executed by the CPU 12.

  Each above-mentioned embodiment is an example of the present invention, and the present invention is not limited to each embodiment. In addition, various modifications can be made depending on the design or the like as long as the technical idea of the present invention is not deviated.

1 is a block diagram showing a configuration in a first embodiment of a medical moving image recording system according to the present invention. The flowchart which shows operation | movement in 1st Embodiment of the medical moving image recording method which concerns on this invention. The load image figure in 1st Embodiment of the medical moving image recording method which concerns on this invention. The block diagram which shows the structure in 2nd Embodiment of the medical moving image recording system which concerns on this invention. The load image figure in 2nd Embodiment of the medical moving image recording method which concerns on this invention. The conventional load image figure of a medical moving image recording method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Medical moving image recording system 2 Input means 3 Storage means 11 Load detection means 12 CPU
DESCRIPTION OF SYMBOLS 13 Encoding control means 14 Delay means 100 Medical diagnostic apparatus 121 Operation processing means 122 Encoding means

Claims (12)

A medical diagnostic device;
An input means for a user to input a recording condition of a medical moving image acquired by the medical diagnostic apparatus;
Operation processing means for processing the medical moving image based on the recording conditions;
Encoding means for encoding the medical moving image;
Storage means for storing the medical moving image encoded by the encoding means;
A load detection unit configured to monitor the load factor applied to the CPU, and detect that the load factor is equal to or higher than a preset threshold;
An encoding control unit that controls the encoding unit to perform encoding while reducing the information amount of the medical moving image when the load detection unit detects that the load factor is equal to or greater than the threshold value; A medical moving image recording system comprising:   After the encoding control unit controls the encoding unit so as to reduce the amount of information of the medical moving image and encode, it is detected by the load detection unit that the load factor is less than the threshold value. 2. The medical moving image according to claim 1, wherein the encoding control unit controls the encoding unit to encode the medical moving image with an amount of information before being reduced. Recording system.   The amount of information before the encoding control unit reduces the amount of information to be encoded after a predetermined time has elapsed since the encoding control unit has controlled the encoding unit so that the information is encoded by reducing the information amount of the medical moving image. 2. The medical moving image recording according to claim 1, further comprising a delay unit that executes control of the encoding control unit with respect to the encoding unit after a predetermined time so as to encode the medical moving image. system.   4. A table associating information amount and image quality is stored in the storage means, and the information amount to be reduced is an information amount corresponding to a preset minimum image quality. The medical moving image recording system described in 1. An input process in which the user inputs the recording conditions of the medical moving image acquired by the medical diagnostic apparatus;
An input information processing process in which the medical moving image is processed by the CPU in accordance with the input recording condition;
A first encoding process for encoding the medical moving image by a CPU;
A storage process for storing the encoded medical moving image;
A load detection step of monitoring a load factor generated in the CPU in the first encoding process and the input information processing step, and detecting that the load factor is equal to or higher than a preset threshold;
When it is detected that the load factor generated by the first encoding process and the input information processing process is greater than or equal to a preset threshold value, the information amount is changed instead of the first encoding process. A medical moving image recording method comprising: a second encoding process step of encoding the medical moving image by reducing the second encoding process.   6. The medical moving image according to claim 5, wherein when it is detected that the load factor is less than the threshold value, the process shifts from the second encoding process to the first encoding process. Recording method.   6. The medical moving image recording method according to claim 5, wherein when it is detected that the load factor is less than the threshold, the process proceeds to the first encoding process after a predetermined time has elapsed.   The medical moving image recording method according to claim 5, wherein the information amount to be reduced is an information amount corresponding to a preset minimum image quality. An input information processing process in which processing is performed by the CPU in response to the recording condition of the medical moving image acquired by the medical diagnostic apparatus being input by the user;
A first encoding process for encoding the medical moving image by a CPU;
A storage process for storing the encoded medical moving image;
A load detection step of monitoring a load factor generated in the CPU in the first encoding process and the input information processing step, and detecting that the load factor is equal to or higher than a preset threshold;
When it is detected that the load factor generated by the first encoding process and the input information processing process is greater than or equal to a preset threshold value, the information amount is changed instead of the first encoding process. A medical moving image recording program for causing a computer to perform a second encoding process step of encoding the medical moving image by lowering the encoding amount.   10. The medical moving image according to claim 9, wherein when the load factor is detected to be less than the threshold value, the process shifts from the second encoding process to the first encoding process. Recording program.   10. The medical moving image recording program according to claim 9, wherein when it is detected that the load factor is less than the threshold value, the process proceeds to the first encoding process after a predetermined time has elapsed. The medical moving image recording program according to any one of claims 9 to 11, wherein the information amount to be reduced is an information amount corresponding to a preset minimum image quality.

Images