JP6418734B2 - Endoscope device - Google Patents

Description

  The present invention relates to an endoscope apparatus that images an observation target such as an organ, and particularly relates to a moving image recording process.

  In the electronic endoscope apparatus, an image sensor is provided at the distal end portion of the video scope, and a moving image is displayed on the monitor by imaging with the video scope. When recording a moving image, the moving image can be compressed according to a predetermined format (such as MPEG), and the compressed image data can be recorded in an external storage device (such as a memory card).

  If there is an unexpected power loss during recording of a moving image and the recording process does not end normally, the recording file may not be closed normally, and all captured image data may be lost. In order to prevent this, an automatic file is created while separating compressed moving image data every time a predetermined condition is satisfied. Then, the compressed moving image data filed is sequentially stored in an external storage device such as a memory card (see Patent Document 1).

JP 2012-161541 A

  When recording moving image data in sequence, if the operator turns off the power to finish recording, or if an unexpected power loss such as disconnection occurs, transfer of the compressed image data file generated immediately before the power is turned off is completed. Without being recorded in the external storage device. For this reason, it is not possible to reproduce all moving images shot until the power is turned off.

  Therefore, it is required that the moving image data recording to the external storage device can be completed even when the power is turned off during the recording process.

  An endoscope apparatus according to the present invention includes a moving image recording processing unit that sequentially and temporarily stores moving image data obtained by imaging by a scope in a storage device provided (built in) inside the processor while being separated according to a predetermined condition; A data transfer unit that sequentially transfers moving image data (herein referred to as segment moving image data) that is divided and sequentially stored from the processor internal storage device to the processor external storage device; Here, the processor external storage device includes a memory that can be attached to and detached from the endoscope processor such as a USB memory, or a storage device that can transfer moving image data through a cable such as a computer system.

  Regarding the moving image data recording process, for example, compressed moving image data can be generated. The segment moving image data of each section can be sequentially filed each time it is generated. As the predetermined condition, for example, the moving image data can be divided every time the data capacity to be temporarily stored is reached. It is also possible to set the recording time or the like to divide the moving image data.

  In the present invention, the data transfer unit automatically transfers the untransferred segment moving image data to the processor external storage device when an operation environment in which moving image recording is newly possible after the moving image recording is completed (here, This is called follow-up transfer). Here, “moving image recording end” includes a forced recording end unintended by the operator or a forced recording end due to an erroneous recording end operation. For example, there is a transition from the power ON state to the OFF state of the endoscope apparatus, and an input operation for premature recording end by the operator.

  On the other hand, “an operating environment in which moving images can be transferred to a processor external storage device” includes a return to a power-on state, an input operation for recording a new moving image, and the like. It shows a state in which image data can be transferred.

  The segment moving image data that has been generated and temporarily stored but not transferred to the external storage device is finally transferred to the external storage device even if the interval is set, and is obtained by the moving image recording process. All the moving image data can be recorded.

  The moving image recording processing unit detects untransferred segment moving image data based on the number of segment moving image data stored in the processor internal storage device and the number of segment moving image data transferred to the processor external storage device. It is possible.

  For example, the moving image recording processing unit stores management data related to storage and transfer of segment moving image data in the processor internal storage device and the processor external storage device. Based on this, untransferred segment moving image data is confirmed. By creating a transfer management file such as a file management job ID, file confirmation in the external storage device is facilitated.

  When the recording is suddenly terminated, it is desirable to transfer the moving image data that has not been generated or temporarily stored because the predetermined condition is not reached, to the external storage device. Therefore, the moving image recording processing unit may store the remaining moving image data as segment moving image data in the processor internal storage device at the end of moving image recording regardless of the predetermined condition.

  The operation method of the endoscope apparatus according to the present invention includes a step in which the moving image recording processing means sequentially and temporarily saves moving image data obtained by imaging by a scope in a processor internal storage device while delimiting according to a predetermined condition, and a data transfer means Is a method of operating an endoscope apparatus including a step of sequentially transferring the stored segment moving image data of each section from the processor internal storage device to the processor external storage device, wherein the data transfer means includes the moving image When the operation environment is newly transferable to the processor external storage device after the recording is completed, it includes a step of additionally transferring the untransferred segment video image data to the processor external storage device. To do.

  The program of the present invention includes a moving image recording processing means for sequentially and temporarily storing moving image data obtained by imaging by an endoscope in a processor internal storage device while dividing the moving image data according to a predetermined condition, Operation that allows segment moving image data to function as data transfer means for sequentially transferring the segment moving image data from the processor internal storage device to the processor external storage device, so that the moving image data can be newly transferred to the processor external storage device after the moving image recording is completed. A program which functions as the data transfer means so that untransferred segment moving image data is additionally transferred to the processor external storage device when the environment is reached.

  As described above, according to the present invention, even when an unexpected power loss occurs, moving image data obtained by imaging with a scope can be reliably recorded in the external storage device.

It is a block diagram of the electronic endoscope apparatus which is this embodiment. It is a flowchart of the main moving image recording process performed by the system control circuit. It is a flowchart of the moving image data transfer process executed by the sub-controller. It is a flowchart of the untransferred moving image data transfer process at the time of power ON executed by the system control circuit. It is the figure which showed the data content of the image file preserve | saved at an external memory and an internal memory, and a management file.

  Hereinafter, the electronic endoscope apparatus according to the present embodiment will be described with reference to the drawings.

  FIG. 1 is a block diagram of an electronic endoscope apparatus according to this embodiment.

  The electronic endoscope apparatus includes a video scope 10 whose insertion portion is inserted into the body, and a processor 20, and the video scope 10 is detachably connected to the processor 20. A monitor 70 is connected to the processor 20.

  The processor 20 includes a lamp 24 that emits white light, and light emitted from the lamp 24 is incident on a light guide (not shown) provided in the video scope 10. The light that has entered the light guide exits from the distal end of the video scope 10 via a light distribution lens (not shown), and irradiates the subject (observation site).

  The light reflected by the subject is imaged by an objective lens (not shown) provided at the distal end of the scope, and a subject image is formed on the light receiving surface of the image sensor 12. Here, a CCD, a CMOS, or the like is applicable as the image sensor 12. On the light receiving surface of the image sensor 12, a color filter (not shown) in which color filter elements made of Cy, Ye, G, Mg, or R, G, B are arranged in a mosaic pattern is disposed.

  In the image sensor 12, image signals for one field / frame are read out at a predetermined time interval. For example, in the NTSC system, pixel signals for one field are read at 1/60 second intervals, and in the PAL system, they are read at 1/50 second intervals. The read analog pixel signal is sent to the signal processing circuit 14.

  The signal processing circuit 14 performs signal processing such as digitization processing, white balance processing (gain processing), gamma correction processing, and color conversion processing on the analog pixel signal. As a result, color image signals of primary colors (R, G, B) are generated and sequentially sent to the processor 20.

  In the processor 20, predetermined signal processing is performed on the image signal sent to the image processing circuit 26 via the system control circuit 30. As a result, a color image signal for one frame / field is sequentially output to the monitor 70, and a color observation image is displayed on the monitor 70 as a moving image.

  A system control circuit 30 including a CPU, a RAM, a ROM, and the like outputs a control signal to the diaphragm mechanism 22, the lamp 24, and the like, and controls the operation of the entire processor 20. A program relating to operation control is stored in advance in the ROM. The diaphragm mechanism 22 is disposed between the incident end of the light guide and the condenser lens, and increases or decreases the amount of illumination light by opening and closing operations.

  A sub-controller 40 including a CPU, a ROM and the like communicates with the system control circuit 30 to control image data transfer to an external memory (external storage device) 60. A program related to this control is stored in the ROM in advance. Further, the sub-controller 40 detects an input operation on the touch panel 65. The external memory 60 is a storage device that can be connected to or detached from the processor 20. For example, a USB memory can be applied.

  An operator such as a doctor can record a moving image in the external memory 60 by performing an input operation on the touch panel 65 during endoscopic work. When the system control circuit 30 receives input operation information for recording a moving image from the sub-controller 40, the system control circuit 30 sends an image signal sent from the video scope 10 to the moving image file generation circuit 28.

  The moving image file generation circuit 28 compresses moving image data. At this time, compressed moving image data (hereinafter referred to as segmented compressed moving image data) is sequentially generated and filed for each predetermined data capacity. The moving image compression processing is executed in accordance with a standard such as MPEG.

  The sequentially generated segment compressed moving image data file is temporarily stored in the internal memory 50 via the sub-controller 40. As the internal memory 50, a nonvolatile memory or the like is applicable here. The temporarily saved segment compressed video data file is sequentially transferred to the external memory 60 by the sub-controller 40 every time the saving is completed.

  The system control circuit 30 and the sub-controller 40 control moving image data recording processing and execute file management of segment compressed moving image data. As will be described later, when the moving image recording process is terminated by switching to the power OFF state, untransferred segment compressed moving image data is stored in the internal memory 50. When the moving image data can be transferred to the external memory 60 again, such as when the power is turned on, the uncompressed segment compressed moving image data is automatically transferred to the external memory 60.

  Hereinafter, the moving image data recording process and the untransferred compressed moving image data transfer process will be described with reference to FIGS.

  FIG. 2 is a flowchart of the main moving image recording process executed by the system control circuit 30. FIG. 3 is a flowchart of moving image data transfer processing executed by the sub-controller 40. FIG. 4 is a flowchart of untransferred moving image data transfer processing executed by the system control circuit 30 when the power is turned on. FIG. 5 is a diagram showing data contents of an external memory, an image file stored in the internal memory, and a management file.

  When an operation for recording moving image data is performed by the operator during the endoscopic operation (S101), a job ID relating to moving image data transfer is generated, and the management file M1 created in advance in the internal memory 50 and the external memory 60 is generated. , M2 (see FIG. 5) (S102). After generating the job ID, the recording operation is started (S103).

  The job ID is associated with a unique file name at the time of moving image recording, and includes items such as recording date and time, processor serial number, the number of saved segment compressed moving image data files, the number of transferred files, and the like. .

  The compressed moving image data generated by the compression process is filed as segment compressed moving image data when the data capacity exceeds a predetermined upper limit. Then, it is temporarily stored in the internal memory 50 (S104, S105). As the compressed moving image data is sequentially stored in the internal memory 50 while being divided, the number of temporarily generated files in the management file M1 in the internal memory 50 is incremented by “1” (S105, S106). While the moving image recording process continues, steps S104 to S106 are repeated. In accordance with this, the number of generated files also increases.

  On the other hand, in the segment compressed moving image data file transfer process by the sub-controller 40, the segment compressed moving image data stored in the internal memory 50 is transferred to the external memory 60 (steps S201 and S202 in FIG. 3). In the management files M1 and M2, the number of transferred files is incremented by “1” (S203).

  By the way, the power supply may be suddenly lost during the moving image recording process. For example, there are power-off when the power cable is disconnected, switching to a power-off state due to an erroneous operation, and the like. In addition, although the transfer of the segment moving image data is not completely completed, the operator may urgently perform an input operation for moving image recording end.

  If it is determined that such a moving image recording end state has been reached (S107), the remaining compressed moving image data that has not reached the upper limit of the data capacity and has not yet been saved in the internal memory 50 is filed, and the internal memory 50 (S108). Then, the number of generated files is incremented by 1 (S109). FIG. 5 shows segment compressed moving image data files A1 to A4 in the internal memory 50.

  When the moving image recording ends due to the power-off state, the segment compressed moving image data for which the recording process transfer has not been completed and the segment compressed moving image data filed last are stored in the internal memory 50. . Then, as shown in FIG. 4, when the power is turned on, transfer processing (follow-up) of untransferred segment compressed moving image data is executed at the start of the operation.

  Specifically, when the power is turned on again, the system control circuit 30 detects the connection of the external memory 60 and detects the management files M1 and M2 (S301, S302). Then, when it is confirmed that the same job ID exists in both the internal memory 50 and the external memory 60, that is, when it is determined that the external memory 60 used in the previous moving image recording process is attached to the processor 20. (S303), the process proceeds to step S304.

  In step S304, it is determined whether or not a content indicating that there is untransferred segment compressed moving image data is written in the job ID in the management files M1 and M2. This untransferred information is listed in the job ID based on the difference between the number of saved files and the number of transferred files. FIG. 5 shows that only the segment compressed moving image data files A1 to A3 are recorded in the external memory 60.

  Since the segment compressed moving image data that has not been transferred to the external memory 60 may exist in the internal memory 50 when the power is turned on after the power is turned off in the transfer incomplete state described above, the number of saved files And the number of transferred files are not the same.

  If the number of transferred files is different from the number of saved files, after confirming that a moving image file name exists, untransferred segment compressed moving image data is additionally transferred to the external memory 60 (S305, S306). At this time, it is recorded in accordance with the address after the last segment compressed moving image data transferred. When the additional transfer ends, the list of untransferred information is deleted from the management files M1 and M2 (S307).

  As described above, according to the present embodiment, when the moving image recording process is executed, the compressed moving image data is temporarily filed in the internal memory 50 as segment compressed moving image data while being divided into predetermined data volumes. The segment compressed moving image data stored temporarily and sequentially stored are sequentially transferred to the external memory 60. When the recording process ends due to power loss or the like, the remaining segment compressed moving image data is filed and recorded. When the power is turned on again, the untransferred segment compressed moving image data is additionally transferred to the external memory 60 and recorded.

  Even if there is a large interval after the moving image recording process is completed, it is possible to transfer the untransferred moving image data to the previously used external memory and record all the captured moving image data. Can do. Further, by generating the job ID and counting the number of transferred files and the number of generated and saved files, it is possible to easily detect the compressed moving image data that has not been transferred to the external memory.

  When the moving image recording ends, the remaining compressed moving image data that has been compressed but does not reach the condition (data capacity) as segment data is filed and saved as segment compressed image data. Can be recorded.

  Management data other than the job ID may be attached to the management file and created. Moreover, the recording method of moving image data is arbitrary and may not be compressed. It is also possible to divide moving images based on other conditions, such as a configuration other than a configuration that divides moving image data according to the data capacity, for example, a recording time is set to divide moving image data.

  Untransferred segment moving image compressed data may be stored in a memory other than the internal memory at the end of recording, or may be additionally transferred from the memory to an external memory. Further, a computer may be connected to the processor and the moving image data may be recorded in the memory of the computer. It is also possible to adopt a configuration in which additional transfer is performed when an input operation for resuming new moving image recording is performed.

10 Videoscope 20 Processor 30 System control circuit 40 Sub-controller 50 Internal memory 60 External memory

Claims (8)

When an input operation of moving image recording is performed, a moving image recording processing unit that sequentially saves moving image data obtained by imaging with a scope in a processor internal storage device while being separated according to a predetermined condition;
A data transfer unit that sequentially transfers the stored segment moving image data of each section from the processor internal storage device to the processor external storage device;
When the moving image recording processing unit finishes recording moving images, the segment moving image data that has not been transferred to the processor external storage device is stored in the processor internal storage device,
After the recording of the moving image is completed, the data transfer unit newly moves the moving image data to the processor external storage device, and the segment moving image data stored in the processor internal storage device is transferred to the processor. Additional transfer to external storage device ,
The moving image recording processing unit stores moving image data not stored in the processor internal storage device at the end of moving image recording as segment moving image data in the processor internal storage device regardless of a predetermined condition. Endoscopic device characterized. A moving image recording processing unit that sequentially saves moving image data obtained by imaging by a scope in a processor internal storage device while dividing the moving image data according to a predetermined condition;
A data transfer unit that sequentially transfers the stored segment moving image data of each section from the processor internal storage device to the processor external storage device;
The moving image recording processing unit stores moving image data not stored in the processor internal storage device at the end of moving image recording as segment moving image data in the processor internal storage device regardless of a predetermined condition;
When the data transfer unit is in an operating environment in which moving image data can be newly transferred to the processor external storage device after moving image recording is completed, the untransferred segment moving image data is additionally transferred to the processor external storage device. the endoscope device you characterized by. Based on the number of segment moving image data stored in the processor internal storage device and the number of segment moving image data transferred to the processor external storage device by the moving image recording processing unit, untransferred segment moving image data The endoscope apparatus according to claim 1 , wherein the endoscope apparatus is detected. The endoscope apparatus according to claim 3 , wherein the moving image recording processing unit stores management data regarding untransferred segment moving image data in the processor internal storage device and the processor external storage device.   The endoscope apparatus according to any one of claims 1 to 4, wherein the moving image recording processing unit generates segment moving image data by compressing moving image data. When an input operation of moving image recording is performed, a moving image recording processing unit that sequentially saves moving image data obtained by imaging with a scope in a processor internal storage device while being separated according to a predetermined condition;
A data transfer unit that sequentially transfers the stored segment moving image data of each section from the processor internal storage device to the processor external storage device;
When the moving image recording processing unit finishes recording moving images, the segment moving image data that has not been transferred to the processor external storage device is stored in the processor internal storage device,
After the recording of the moving image is completed, the data transfer unit newly moves the moving image data to the processor external storage device, and the segment moving image data stored in the processor internal storage device is transferred to the processor. Additional transfer to external storage device ,
The moving image recording processing unit sequentially stores the segment moving image data as a file and stores it in the processor internal storage device,
The moving image recording processing section, a moving image data that is not stored in the processor internal storage device at the end of the moving image recording, into a file regardless predetermined condition is stored as a segment moving image data to said processor internal storage device the endoscope device you wherein a. When the moving image recording processing means performs an input operation of moving image recording, the step of sequentially and temporarily storing the moving image data obtained by imaging by the scope in the processor internal storage device while delimiting according to a predetermined condition;
An operation method of an endoscope apparatus including a step of sequentially transferring stored segment moving image data of each section from the processor internal storage device to a processor external storage device.
When the moving image recording processing unit finishes moving image recording, the segment moving image data that has not been transferred to the processor external storage device is stored in the processor internal storage device,
When the data transfer means is in an operating environment in which moving image data can be newly transferred to the processor external storage device after moving image recording is completed, the segment moving image data stored in the processor internal storage device is transferred to the processor. Including the step of additional transfer to an external storage device ,
A step in which the moving image recording processing unit stores moving image data not stored in the processor internal storage device at the end of moving image recording as segment moving image data in the processor internal storage device regardless of a predetermined condition ; An operation method of an endoscope apparatus comprising: The moving image recording processing means sequentially saves the moving image data obtained by the imaging by the scope sequentially in the processor internal storage device while delimiting according to a predetermined condition,
The data transfer unit sequentially transfers the stored segment moving image data of each section from the processor internal storage device to the processor external storage device,
The moving image recording processing unit stores moving image data not stored in the processor internal storage device at the end of moving image recording as segment moving image data in the processor internal storage device regardless of a predetermined condition;
When the data transfer unit is in an operating environment in which moving image data can be newly transferred to the processor external storage device after moving image recording is completed, the untransferred segment moving image data is additionally transferred to the processor external storage device. An operation method of an endoscope apparatus characterized by:

Images