JP2016174334A - Imaging apparatus, imaging method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an influence on the preservation of a moving image if there is a problem in the surrounding environment.SOLUTION: On detecting the disconnection of a communication condition with external equipment such as a remote controller 2, a control unit 17 controls an imaging unit 10 to start imaging operation to record the imaged moving image temporarily from a predetermined address of an external storage medium 16. Then, if communication with the external equipment such as the remote controller 2 is resumed during imaging the moving image, the control unit 17 stops the moving image recording, and when preservation is instructed by an external operation from the external equipment such as the remote controller 2, files and records the moving image, temporarily recorded in the external storage medium 16, into the external storage medium 16. The control unit 17 then updates a recording start address, so as not to use the storage area of the filed moving image, as a moving image preservation buffer.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an imaging apparatus, an imaging method, and a program.

  Conventionally, a technology has been proposed in which a video camera or a digital camera and a remote controller are wirelessly connected, and video recording with the video camera or the digital camera is remotely controlled by the remote controller (see, for example, Patent Document 1). According to this technique, for example, the number of channels used for transmission can be increased or decreased according to the amount of buffer storage.

JP 2001-313930 A

  However, in the prior art, the recorded moving image data needs to be transmitted to an external device (for example, a remote controller). Therefore, there is a problem in the surrounding environment, and when the wireless connection between the video camera or the digital camera and the external device is disconnected, the recorded moving image is not transmitted to the external device and cannot be stored.

  Therefore, an object of the present invention is to reduce the influence of the surrounding environment on the storage of moving images.

  The imaging apparatus according to the present invention includes: an imaging unit, a recording unit, and a first recording that causes the recording unit to record an image acquired by causing the imaging unit to start an imaging operation. And a second recording control unit configured to record the image recorded by the first recording control unit as a file and record the file on the recording unit based on an external operation.

  The imaging method according to the present invention is an imaging method of an imaging apparatus including an imaging unit and a recording unit, and the image acquisition unit is configured to temporarily store an image acquired by causing the imaging unit to start an imaging operation. A first recording control step for recording in the recording unit; a second recording control step for recording the image recorded in the first recording control step into a file and recording in the recording unit based on an external operation; It is characterized by including.

  A program according to the present invention is recorded in the recording unit as a computer that temporarily stores an image obtained by causing the imaging unit to start an imaging operation with a computer of an imaging apparatus including an imaging unit and a recording unit. Based on the first recording control function to be performed and an external operation, the image recorded by the first recording control function is made to function as a second recording control function for making a file and recording the image on the recording unit. And

  According to this invention, the influence on the preservation | save of the moving image of the surrounding environment can be reduced.

It is a block diagram which shows the structure of the remote system which consists of the digital camera 1 by embodiment of this invention, and the remote control 2 provided with a display part. 1 is a block diagram illustrating a configuration of a digital camera 1 according to an embodiment of the present invention. 4 is a flowchart for explaining the operation of the digital camera 1 according to the present embodiment. In this embodiment, it is a conceptual diagram for demonstrating the memory use state of the digital camera 1. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

A. Configuration of Embodiment FIG. 1 is a block diagram illustrating a configuration of an image generation system including a digital camera 1 and a remote controller 2 according to an embodiment of the present invention. In the figure, the digital camera 1 of the present embodiment is a digital camera that does not include a display unit. The remote controller 2 is an external device that includes a display unit and includes a smartphone, a tablet terminal, and the like. The digital camera 1 and the remote controller 2 establish pairing (wireless connection recognition) using the wireless communication 3 that can be used by each. The remote controller 2 remotely operates the digital camera 1 via the wireless communication 3 using the activated camera operation dedicated application (program).

  Note that the remote operation in the present invention includes operations such as start / stop of still image / moving image shooting, setting of operation mode, zooming, setting of shooting conditions, browsing of shot images (shot moving images), and the like. In FIG. 1, the wireless communication 3 includes a wireless LAN (WiFi), Bluetooth (registered trademark), or the like. Also, the digital camera 1 can be a general shape that a user holds or mounts on a tripod or the like to take a picture, a shape that can be worn on a human body, an optical system (lens), an image sensor (CCD), wireless communication 3. For example, the communication unit may perform a minimum configuration for capturing an image.

  FIG. 2 is a block diagram showing a configuration of the digital camera 1 according to the embodiment of the present invention. In the figure, the digital camera 1 of the present embodiment includes an imaging unit 10, an image processing unit 11, a key input unit 12, a wireless communication unit 13, a program memory 14, a memory 15, an external storage medium 16, and a control unit 17. Yes.

  The image capturing unit 10 includes a lens block including an optical lens group and an image sensor such as a CCD or a CMOS. The image input from the lens block is converted into a digital signal by the image sensor and output. The image processing unit 11 performs image processing of captured image data (pixel interpolation processing, γ correction, generation of luminance and color difference signals, white balance processing, exposure correction processing, superimposition synthesis processing, filter processing, and the like), image data compression / Processing such as decompression (for example, compression / expansion in JPEG format, M-JPEG format or MPEG format), trimming of a captured image, digital zooming of a captured image, and the like are performed.

  The key input unit 12 includes a plurality of operation keys such as a shutter key, a zoom key, a mode key, a movie recording start / end key, and a power on / off key, and outputs an operation signal corresponding to a user's key operation. The wireless communication unit 13 uses, for example, Bluetooth (registered trademark) to transmit / receive still image data / moving image data to / from an external device (an electronic device including a display unit, such as a smartphone or a tablet terminal). . It is more preferable if it is a power-saving Bluetooth (registered trademark) Low Energy or Bluetooth (registered trademark) @Smart. In addition to the wireless communication unit 13 based on Bluetooth (registered trademark), communication means using a wireless LAN (Local Area Network), NFC (Near Field Communication), or a mobile communication network of a mobile phone is provided. May be.

  The program memory 14 stores programs executed by the control unit 17 described later, various parameters required for operations, and the like. The memory 15 is used as a buffer memory for temporarily storing still image data / moving image data picked up by the image pickup unit 10 and used as a working memory when the control unit 17 described later executes a program. The external storage medium 16 includes a storage medium such as a micro SD card or an SD card, and stores still image files / moving image files after shooting.

  The control unit 17 controls the operation of each unit by executing the program stored in the program memory 14 described above. In particular, in the present embodiment, the control unit 17 detects a disconnection from a wireless connection establishment state with an external device such as the remote controller 2, a disconnection without receiving a connection release signal, or a reception strength. When the ACK cannot be received even if a connection request signal (including retry) is sent from the digital camera 1 side, recording of a moving image starts from a predetermined address of the external storage medium 16 and the moving image is being recorded. If there is no reconnection with the remote controller 2, the moving image recording is continued up to the storage capacity of the external storage medium 16. Note that the disconnection from the wireless connection established state with the external device does not include the case where the user intentionally disconnects the wireless connection (that is, the case where the user disconnects after receiving the connection release signal).

  In addition, when the recording capacity of the control unit 17 exceeds the storage capacity of the external storage medium 16 without being reconnected to the external device such as the remote controller 2 during the recording of the moving image to the external storage medium 16, Continue to record videos by sequentially deleting videos from.

  In addition, when the control unit 17 reconnects to an external device such as the remote controller 2 while recording a moving image on the external storage medium 16, the control unit 17 stops the recording of the moving image and performs the current recording when a save instruction is detected from the remote control 2. The movie is left as a file, and the recording start address is updated for the next recording area. In addition, when a save instruction is not detected from an external device such as the remote controller 2, the control unit 17 deletes the video file recorded this time (actually set to be overwritable), and sets the recording set for the current recording. Free the area.

In the present embodiment, according to the save instruction from the remote controller 2, the captured video is filed.
(1) File header (profile data) writing and EOF setting (2) In the management area of the external storage medium 16, overwriting is prohibited for the area where the filed moving image data is stored, and the next buffering At this time, an address avoiding the storage address of the filed moving image data is set as the writing start position.
It means that.

  Note that even video data that has only been buffered and is not filed can be played back / edited (frame cut out and captured as a still picture).

A-2. Operation of Embodiment Next, the operation of the above-described embodiment will be described.
FIG. 3 is a flowchart for explaining the operation of the digital camera 1 according to the present embodiment. FIG. 4 is a conceptual diagram for explaining a memory use state of the digital camera 1 in the present embodiment. The flowchart shown in FIG. 3 is executed by the control unit 17 when the power is turned on and disconnection from a state of establishing a wireless connection with an external device is detected.

  First, the control unit 17 acquires management area information of the external storage medium 16 (step S10). Next, the control unit 17 determines whether or not the external storage medium 16 has been initialized (step S12). If it is initialized (YES in step S12), the control unit 17 acquires a recording start address (step S14). More specifically, when the external storage medium 16 is initialized, the control unit 17 determines whether there is a filed moving image on the external storage medium 16 and there is a filed moving image. When recording, a recording start address of a storage area other than the storage area of the filed moving image is acquired.

  On the other hand, if it has not been initialized (NO in step S12), the control unit 17 executes an initialization process (quick format) (step S16) and sets a recording start address (step S18).

  In any case, the control unit 17 records the moving image data captured by the imaging unit 10 from the acquired recording start address (step S20). The control unit 17 determines whether or not a reconnection request from the external device (remote controller 2) is detected during recording of the moving image (step S22).

  If a reconnection request from the external device (remote controller 2) is not detected (NO in step S22), the control unit 17 determines whether or not the storage capacity of the memory 15 has been exceeded (step S24). If the storage capacity of the memory 15 is not exceeded (NO in step S24), the control unit 17 returns to step S20 and continues recording the moving image data captured by the imaging unit 10.

  On the other hand, when the storage capacity of the memory 15 is exceeded (YES in step S24), the control unit 17 sequentially deletes the moving image data from the start of the current recording (step S26). Then, the control part 17 returns to step S20, and continues recording of the moving image data image | photographed with the imaging part 10. FIG.

  When a reconnection request from the external device (remote controller 2) is detected during moving image recording (YES in step S22), the control unit 17 stops recording the moving image (step S28), and the external device It is determined whether or not a storage instruction from (remote controller 2) has been detected (step S30).

  If a save instruction is detected (YES in step S30), the control unit 17 updates the recording start address (step S32). In other words, when there is a save instruction operation, the current video recording area is set as the save area, the video file recorded this time is left, and it is not used as a video save buffer until the next format is performed. Thereafter, the process ends. On the other hand, when the storage instruction is not detected (NO in step S30), the control unit 17 deletes the moving image recorded this time (step S34). That is, the current moving image recording area is released and can be used.

  FIG. 4 is a conceptual diagram for explaining the usage status of the external storage medium 16 of the digital camera 1 according to the present embodiment. When the memory is initialized, the moving image is saved from the position A ($ 00000000), but when the save operation is performed at the position B ($ 40000000), the next buffer saving is performed from the position B. Further, when the recorded moving image is not saved and the remote control 2 is reconnected, the recording is started from the start address of the external storage medium 16. If there is no stored moving image, recording starts from position A. On the other hand, if there is a stored moving image, recording of the next moving image is started from position B after the stored moving image.

  According to the above-described embodiment, the moving image temporarily acquired by causing the imaging unit 10 to start the imaging operation when the communication state with the external device such as the remote controller 2 is disconnected is temporarily stored in the external storage medium. When recording is instructed by an external operation from an external device such as the remote controller 2 when communication is resumed and the communication is resumed, the video temporarily recorded in the external storage medium 16 is converted into a file and stored externally. Since recording is performed on the medium 16, even if there is a problem in the surrounding environment, a moving image can be saved by effectively using the storage capacity of the external storage medium 16.

  According to the above-described embodiment, when it is determined whether or not a filed image exists in the external storage medium 16 and it is determined that a filed moving image exists, a storage area other than the filed moving image storage area is determined. Since the acquired video is saved by assigning it to the area for temporary storage, the acquired video can be saved without erasing (or overwriting) the existing filed video. it can.

  According to the above-described embodiment, when it is determined that a filed moving image exists, the address information indicating the storage region of the filed moving image is acquired, and the region indicated by other than the address information is temporarily saved. Since the acquired moving image is stored by assigning it to the area to be used, the acquired moving image can be stored without erasing (or overwriting) the existing filed moving image.

  According to the above-described embodiment, the externally stored video is temporarily stored in the external storage medium 16 by temporarily erasing or overwriting the video that has not been filed. Since recording is performed on the storage medium 16, the storage area of the external storage medium 16 can be used effectively.

  According to the above-described embodiment, when the communication state with an external device such as the remote controller 2 is disconnected, the moving image acquired by causing the imaging unit 10 to start the imaging operation is temporarily stored as an external storage. Since recording is performed on the medium 16, the moving image can be saved by effectively using the storage capacity of the external storage medium 16 even in a situation where the moving image acquired to the external device cannot be transferred. .

  According to the above-described embodiment, when a specific signal transmitted by the external device cannot be received, when the signal strength transmitted by the external device decreases, or when the connection with the external device is disconnected Since it is determined that the communication state with the external device such as the remote controller 2 is disconnected when the state is shifted to the state, the acquired video cannot be transferred to the external device such as the remote controller 2. In addition, the moving image can be saved by effectively using the storage capacity of the external storage medium 16.

  In the first to third embodiments described above, only the moving image has been described. However, the moving image is not limited to a moving image, and may be a still image.

As mentioned above, although several embodiment of this invention was described, this invention is not limited to these, The invention described in the claim, and its equal range are included.
Below, the invention described in the claims of the present application is appended.

(Appendix 1)
The invention according to appendix 1 is the first recording that causes the recording unit to record the image acquired by causing the imaging unit, the recording unit, and the imaging unit to start an imaging operation as a temporary storage. An imaging apparatus comprising: a control unit; and a second recording control unit configured to record the image recorded by the first recording control unit as a file and record the file on the recording unit based on an external operation. It is.

(Appendix 2)
The invention described in appendix 2 further includes a determination unit that determines whether or not an image filed by the second recording control unit exists in the recording unit, and the second determination unit determines whether the recording unit includes the second recording unit. If the recording control unit determines that there is an image filed, the first recording control unit allocates an area other than the filed image storage area to temporarily store the acquired image. The imaging apparatus according to appendix 1, wherein control is performed so as to store the captured image.

(Appendix 3)
According to the third aspect of the present invention, when the determination unit determines that the image filed by the second recording control unit exists in the recording unit, the first recording control unit converts the file into the file. The address information indicating the storage area of the image is acquired, and an area indicated by other than the address information is allocated to an area for temporarily storing and control is performed to store the acquired image. It is an imaging device as described in above.

(Appendix 4)
In the invention according to attachment 4, the first recording control unit erases an image that has been previously controlled by the first recording control unit and has not been filed by the second recording control unit. Alternatively, the imaging device according to any one of appendices 1 to 3, wherein the recording unit records the acquired image as a temporary storage by overwriting.

(Appendix 5)
The invention according to appendix 5 further includes communication means and detection means for detecting a change in an operating state of the communication means, wherein the first recording control means is the communication means detected by the detection means. (1) to (4), wherein the recording unit records the acquired image by temporarily causing the imaging unit to start the imaging operation based on the content of the change in the operation. It is an imaging device as described in any one of these.

(Appendix 6)
The invention according to appendix 6 is characterized in that the change in the operating state of the communication means includes a change relating to a process for determining whether or not a specific signal transmitted by the communication partner has been received. It is an imaging device as described in above.

(Appendix 7)
The invention according to appendix 7 is the imaging apparatus according to appendix 5, characterized in that the change in the operating state of the communication means includes a change in signal intensity transmitted by the communication partner.

(Appendix 8)
The invention according to appendix 8 is characterized in that the change in the operating state of the communication means is a change from a state in which the connection with the communication partner is continued to a disconnected state. It is an imaging device.

(Appendix 9)
The invention according to appendix 9 is the imaging apparatus according to any one of appendices 1 to 4, wherein the image includes a moving image.

(Appendix 10)
The invention according to attachment 10 is an imaging method of an imaging apparatus including an imaging unit and a recording unit, and the image acquisition unit temporarily stores an image acquired by causing the imaging unit to start an imaging operation. A first recording control step for recording in the recording unit; a second recording control step for recording the image recorded in the first recording control step into a file and recording in the recording unit based on an external operation; It is the imaging method characterized by including.

(Appendix 11)
The invention according to attachment 11 is provided in the recording unit as a computer that temporarily stores an image acquired by causing the computer of the imaging apparatus including an imaging unit and a recording unit to start an imaging operation on the imaging unit. Based on the first recording control function to be recorded and an external operation, the image recorded by the first recording control function is made to function as a second recording control function for creating a file and recording the image on the recording unit. It is a featured program.

DESCRIPTION OF SYMBOLS 1 Digital camera 2 Remote control 3 Wireless communication 10 Imaging part 11 Image processing part 12 Key input part 13 Wireless communication part 14 Program memory 15 Memory 16 External storage medium 17 Control part

Claims (11)

Imaging means;
Recording means;
A first recording control unit that causes the recording unit to record an image acquired by causing the imaging unit to start an imaging operation;
A second recording control unit configured to record the image recorded by the first recording control unit into a file and record the file on the recording unit based on an external operation;
An imaging apparatus comprising: A judgment means for judging whether the image filed by the second recording control means exists in the recording means;
When the determination unit determines that the image filed by the second recording control unit exists in the recording unit, the first recording control unit temporarily stores the area other than the storage area of the filed image. Control to save the acquired image allocated to the area for saving,
The imaging apparatus according to claim 1. When it is determined by the determining means that the image filed by the second recording control means exists in the recording means, the first recording control means displays address information indicating a storage area of the filed image. And control to store the acquired image by assigning the area indicated by other than the address information to an area for temporarily storing,
The imaging apparatus according to claim 2. The first recording control means is obtained by erasing or overwriting an image previously controlled by the first recording control means and not filed by the second recording control means. Let the recording means record the image as temporarily stored,
The imaging apparatus according to any one of claims 1 to 3, wherein Communication means;
Detecting means for detecting a change in the operating state of the communication means,
The first recording control unit temporarily stores an image acquired by causing the imaging unit to start an imaging operation based on the change in operation of the communication unit detected by the detection unit. Let the recording means record it as
The imaging apparatus according to any one of claims 1 to 4, wherein the imaging apparatus is characterized in that The change in the operating state of the communication means includes a change related to a determination process of whether or not a specific signal transmitted by a communication partner has been received,
The imaging apparatus according to claim 5. The change in the operating state of the communication means includes a change in signal strength transmitted by the communication partner,
The imaging apparatus according to claim 5. The change in the operating state of the communication means is a change from a state where the connection with the communication partner is continued to a disconnected state.
The imaging apparatus according to claim 5. The image includes a video,
The imaging apparatus according to any one of claims 1 to 4, wherein the imaging apparatus is characterized in that An imaging method of an imaging apparatus including an imaging unit and a recording unit,
A first recording control step for causing the recording unit to record an image acquired by causing the imaging unit to start an imaging operation;
A second recording control step in which the image recorded in the first recording control step is converted into a file and recorded in the recording unit based on an external operation;
An imaging method comprising: An imaging device computer comprising an imaging unit and a recording unit,
A first recording control function for causing the recording unit to record an image acquired by causing the imaging unit to start an imaging operation;
A second recording control function for making an image recorded by the first recording control function into a file and recording the file on the recording unit based on an external operation;
A program characterized by functioning as

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