WO2013051543A1 - Appareil photo électronique - Google Patents

Appareil photo électronique Download PDF

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Publication number
WO2013051543A1
WO2013051543A1 PCT/JP2012/075477 JP2012075477W WO2013051543A1 WO 2013051543 A1 WO2013051543 A1 WO 2013051543A1 JP 2012075477 W JP2012075477 W JP 2012075477W WO 2013051543 A1 WO2013051543 A1 WO 2013051543A1
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WIPO (PCT)
Prior art keywords
imaging
camera
image data
transfer
smartphone
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PCT/JP2012/075477
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English (en)
Japanese (ja)
Inventor
嘉之 大谷
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三洋電機株式会社
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Filing date
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Application filed by 三洋電機株式会社 filed Critical 三洋電機株式会社
Publication of WO2013051543A1 publication Critical patent/WO2013051543A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
    • H04N5/772—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera the recording apparatus and the television camera being placed in the same enclosure

Definitions

  • the present invention relates to an electronic camera, and more particularly to an electronic camera that transfers an output of an imaging device to an external device.
  • Patent Document 1 An example of this type of electronic camera is disclosed in Patent Document 1.
  • a real-time image photographed by a photographing device is transmitted to a plurality of client terminals via a network.
  • the transmission of the real-time image is interrupted, and the still image shot by the imaging device is transmitted to the request source.
  • the transmission of the real-time image is resumed after the transmission of the still image is completed.
  • An electronic camera includes the following: an imaging unit that outputs an electronic image corresponding to an optical image captured on an imaging surface; a first creation unit that creates a first packet based on an output of the imaging unit; First transfer means for periodically executing processing for uniformly transferring the first packet created by the first creation means to one or more external devices; based on the output of the imaging means when an imaging instruction is received Second creating means for creating a second packet; and second transferring means for executing a process for transferring the second packet created by the second creating means to the designated external device between the processes of the first transferring means.
  • the first creation means converts the first image created by the first image creation means and the first image creation means for periodically creating the first image based on the output of the imaging means into a first packet.
  • First packetizing means converts the first image created by the first image creation means and the first image creation means for periodically creating the first image based on the output of the imaging means into a first packet.
  • the second creating means creates a predetermined number of second images based on the output of the imaging means, and the second number of second images created by the second image creating means is second.
  • Second packetizing means for converting into a packet is included.
  • the first transfer means includes line control means for controlling occupation / release of the communication line
  • the second transfer means includes detection means for detecting release of the communication line.
  • the imaging instruction noticed by the second creating unit includes transfer destination information, and the designated external device corresponds to the external device designated by the transfer destination information.
  • the imaging instruction noted by the second creating means is issued from any one of one or two or more external devices.
  • connection means for connecting with a connection request issuer is further provided, and one or more external devices noted by the first transfer means correspond to connection targets of the connection means.
  • a transfer control program is a transfer control program recorded on a non-temporary recording medium so as to control an electronic camera including an imaging unit that outputs an electronic image corresponding to an optical image captured on an imaging surface.
  • a transfer control method is a transfer control method executed by an electronic camera including an imaging unit that outputs an electronic image corresponding to an optical image captured on an imaging surface, and includes the following: A first creation step for creating a first packet based on the output; a first transfer for periodically executing a process for uniformly transferring the first packet created in the first creation step to one or more external devices; A step of creating a second packet based on the output of the imaging means when an imaging instruction is received; and a process of transferring the second packet created in the second creation step to a designated external device.
  • a second transfer step executed between the processes of the one transfer step.
  • FIG. 3 is an illustrative view showing one example of a configuration of a register applied to the digital camera shown in FIG. 1 or FIG. 2.
  • (A) is an illustration figure which shows an example of a structure of the search register applied to the smart phone shown in FIG.
  • FIG. 3 is an illustration figure which shows an example of a structure of the connection register applied to the smart phone shown in FIG. is there. It is an illustration figure which shows an example of the structure of the imaging instruction
  • FIG. 3 is a flowchart showing a part of the operation of the camera CPU shown in FIG. 1 or FIG. 2. It is a flowchart which shows a part of other operation
  • FIG. 5 is a flowchart showing still another part of the operation of the camera CPU shown in FIG. 1 or FIG. 2. It is a flowchart which shows a part of other operation
  • FIG. 5 is a flowchart showing still another part of the operation of the camera CPU shown in FIG. 1 or FIG. 2. It is a flowchart which shows a part of operation
  • FIG. 10 is a flowchart showing yet another portion of the operation of the smartphone CPU shown in FIG. 3. It is a flowchart which shows another part of operation
  • (A) is a timing diagram showing an example of a transfer operation of live image data
  • (B) is a timing diagram showing an example of a transfer operation of live image data and still image data. It is a flowchart which shows a part of operation
  • the electronic camera of this embodiment is basically configured as follows.
  • the imaging unit 1 outputs an electronic image corresponding to the optical image captured on the imaging surface.
  • the first creation unit 2 creates a first packet based on the output of the imaging unit 1.
  • the first transfer means 3 periodically executes a process of uniformly transferring the first packet created by the first creation means 2 to one or more external devices.
  • the second creation unit 4 creates a second packet based on the output of the imaging unit 1 when receiving an imaging instruction.
  • the second transfer means 5 executes a process for transferring the second packet created by the second creation means 4 to the designated external device between the processes of the first transfer means 3.
  • the first packet based on the output of the imaging means 1 is transferred uniformly and periodically to one or more external devices.
  • the external device that has acquired the first packet can reproduce a moving image representing a scene captured on the imaging surface.
  • the second packet based on the output of the imaging unit 1 is created in response to the imaging instruction and is transferred to the designated external device.
  • the designated external device can reproduce a still image representing a scene captured in response to an imaging instruction.
  • the transfer process of the second packet is executed between the transfer processes of the first packet. Thereby, the delay of the transfer process of the second packet can be suppressed. Thus, the image transfer performance is improved.
  • the camera system of this embodiment includes one or more digital cameras 10 each configured as shown in FIG. 1 or 2 and one or more smartphones 50 each configured as shown in FIG. And formed by. Both the digital camera 10 and the smartphone 50 have a short-range wireless communication function according to the AdHoc method or the Wi-FiDirect method. Note that the short-range wireless communication is executed by the communication I / F 42 shown in FIG. 1 or 2 and the communication I / F 64 shown in FIG.
  • the camera operation function of the smartphone 50 is activated, and the smartphone 50 is moved to the vicinity of the digital camera 10, live image data representing a scene photographed by the digital camera 10 is obtained. It is transferred to the smartphone 50 by short-range wireless communication (see FIG. 4).
  • a zoom operation is performed on the smartphone 50, a zoom instruction is given to the digital camera 10 by short-range wireless communication, and the zoom magnification is changed in response thereto.
  • an imaging operation is performed on the smartphone 50, an imaging instruction is given to the digital camera 10 by short-range wireless communication.
  • Still image data representing a scene at the time when an imaging instruction is given is transferred from the digital camera 10 to the smartphone 50 by short-range wireless communication.
  • the digital camera 10 shown in FIG. 1 is assumed to be taken by a general consumer and photograph a desired scene at home or on the road.
  • the digital camera 10 shown in FIG. 2 is assumed to be installed at a plurality of positions in a tourist spot such as a theme park and observe fixed points. Therefore, in comparison with the digital camera 10 shown in FIG. 1, the key input device 34, the LCD driver 28, and the LCD monitor 30 are omitted in the digital camera 10 shown in FIG.
  • the digital camera 10 shown in FIG. 2 is mounted on a radio controlled car, a radio controlled airplane, a rock climber's helmet or an animal, or embedded in a ball for ball games in order to shoot an unusual scene. Also good.
  • the digital camera 10 shown in FIG. 2 may also be installed in a refrigerator for managing cold objects, or attached to a security guard's flashlight for photographing the security area.
  • the digital camera 10 includes a zoom lens 12, a focus lens 14, and a diaphragm mechanism 16 that are driven by drivers 20a, 20b, and 20c, respectively.
  • the optical image that has passed through these members is irradiated onto the imaging surface of the imaging device 18 and subjected to photoelectric conversion. As a result, a charge representing the scene captured on the imaging surface is generated.
  • the camera CPU 32 executes a plurality of tasks including a camera-side imaging control task, a camera-side display control task, a response processing task, a camera-side connection control task, and a camera-side communication control task in parallel on the multitask OS. It is. Control programs corresponding to these tasks are stored in the flash memory 40.
  • the camera side display control task is omitted in the digital camera 10 shown in FIG.
  • the camera side imaging control task instructs the driver 20d to repeat the exposure operation and the charge readout operation in order to start the moving image capturing process.
  • the driver 20d exposes the imaging surface and reads out the charges generated on the imaging surface in a raster scanning manner. From the imaging device 18, raw image data based on the read charges is periodically output.
  • the camera processing circuit 22 performs processing such as color separation, white balance adjustment, and YUV conversion on the raw image data output from the imaging device 18, and the YUV format image data generated thereby is stored in the SDRAM 26 through the memory control circuit 24. Write in the YUV image area 26a.
  • the camera side display control task instructs the LCD driver 28 to start the moving image display process.
  • the LCD driver 28 repeatedly reads out the image data stored in the YUV image area 26a through the memory control circuit 24, and drives the LCD monitor 30 based on the read image data. As a result, a live image representing a scene captured on the imaging surface is displayed on the monitor screen.
  • the image data created by the camera processing circuit 22 is also given to the camera CPU 32.
  • the camera-side imaging control task performs simple AE processing on the given image data to calculate an appropriate EV value, and sets the aperture amount and the exposure time that define the calculated appropriate EV value in the drivers 20c and 20d, respectively. As a result, the brightness of the image data is adjusted appropriately.
  • the camera-side imaging control task instructs the driver 20a to execute zoom processing.
  • the zoom lens 12 is moved in the zoom-in direction or the zoom-out direction by the driver 20a, thereby changing the magnification of the image data.
  • the camera side display control task instructs the LCD driver 28 to interrupt the moving image display process.
  • the display on the LCD monitor 30 is updated from the live image to the black image.
  • the camera-side imaging control task performs strict AE processing on the image data output from the camera processing circuit 22 to calculate the optimum EV value, and sets the aperture amount and exposure time defining the calculated optimum EV value to the driver 20c. And 20d, respectively.
  • the brightness of the image data is adjusted to an optimum value.
  • the camera-side imaging control task executes AF processing with reference to the high-frequency component of the image data output from the camera processing circuit 22.
  • the focus lens 14 is placed at the focal point by the driver 20b, and thereby the sharpness of the image data is improved.
  • the camera side imaging control task executes the still image capturing process and commands the memory I / F 36 to execute the recording process.
  • One frame of image data representing the scene at the time when the AF process is completed is saved in the still image area 26b of the SDRAM 26 by the still image capturing process.
  • the memory I / F 36 instructed to execute the recording process reads the image data saved in the still image area 26 b through the memory control circuit 24 and records an image file containing the read image data on the recording medium 38. .
  • the camera side display control task instructs the LCD driver 28 to resume the moving image display process after the recording process is completed.
  • the LCD driver 28 resumes reading the image data stored in the YUV image area 26a, and as a result, the display on the LCD monitor 30 is returned to the live image.
  • the smartphone 50 includes an antenna 52 for mobile communication and a wireless communication module. If the transmitted / received data is call voice data, the received voice is output from the speaker 56 and the transmitted voice is captured by the microphone 58. If the transmission / reception data is image data, this data is processed under the control of the smartphone CPU 60.
  • the target image data is written into the SDRAM 68 through the memory control circuit 66.
  • the LCD driver 70 reads the image data stored in the SDRAM 68 through the memory control circuit 66, and drives the LCD monitor 72 based on the read image data. As a result, a corresponding image is displayed on the monitor screen.
  • a touch operation on the monitor screen is detected by a touch sensor 78. The detection result is given to the smartphone CPU 60, and different processes are executed under the control of the smartphone 60 according to the mode of the touch operation.
  • the smartphone CPU 60 is also a processor that executes a plurality of tasks in parallel on the multitasking OS. As tasks to be executed, a search processing task, a phone side connection control task, a phone side communication control task, a phone side display control task, and a phone side imaging control task are prepared. Control programs corresponding to these tasks are stored in the flash memory 62.
  • the issued response request describes its own phone ID, and the response request is issued from the communication I / F 64 by the broadcast method.
  • the response processing task When the response request is received by the communication I / F 42 of the digital camera 10, the response processing task returns an ACK through the communication I / F 42.
  • the returned ACK describes the camera ID for identifying itself and the requesting phone ID.
  • the digital camera 10 belongs to one of a plurality of predefined groups, and a group ID for identifying the group to which the digital camera 10 belongs is assigned to the digital camera 10. This group ID is added to the camera ID described in ACK in an expanded manner.
  • the search processing task extracts the camera ID described in the received ACK and uses the extracted camera ID as a search register RGSTs. Register with. The group ID added to the camera ID in an expanded manner is registered in the search register RGSTs corresponding to the camera ID.
  • the phone side connection control task instructs the LCD driver 70 to display the group menu.
  • the LCD driver 70 detects one or more group IDs from the search register RGSTs, and displays the detected group IDs on the LCD monitor 72 as a group menu.
  • the issued connection request describes its own phone ID and specification information, and further describes one or more camera IDs described in the search register RGSTs corresponding to the selected group ID.
  • the specification information for example, the resolution of the LCD monitor 72 is assumed.
  • the camera-side connection control task executes an authentication process on the received connection request. If the connection with the requesting smartphone 50 is approved as a result of the authentication processing, the camera side connection control task transmits an ACK in which the camera ID of the camera and the requesting phone ID are described through the communication I / F 42. .
  • the camera side connection control task extracts the request source phone ID and specification information from the connection request, and registers the extracted phone ID and specification information in the register RGST1 shown in FIG. Furthermore, when the number of phone IDs registered in the register RGST1 is updated from “0” to “1”, the camera-side connection control task notifies other tasks of establishment of the connection with the smartphone 50.
  • the camera-side display control task that has received this notification interrupts the display of the live image on the LCD monitor 30.
  • the display on the LCD monitor 30 is updated from a live image to a black image in response to the connection with the smartphone 50.
  • the issued response request describes its own camera ID and one or more phone IDs registered in the register RGST1.
  • the phone side connection control task determines that the phone ID that matches its own phone ID and the camera that matches any camera ID registered in the connection register RGSTc.
  • An ACK is returned only when the ID is described in the response request.
  • the returned ACK describes its own phone ID and the requesting camera ID.
  • the camera-side connection control task refers to the reception status of the ACK returned in this way, and identifies the smartphone 50 that is unable to maintain the connection.
  • the identified phone ID and specification information of the smartphone 50 are deleted from the register RGST1.
  • the camera side connection control task notifies the other task of the release of the connection with the smartphone 50.
  • the camera-side display control task resumes displaying the live image on the LCD monitor 30.
  • the display on the LCD monitor 30 is updated from a black image to a live image in response to the release of the connection with the smartphone 50.
  • the live image representing the scene captured by the digital camera 10 is displayed on the LCD monitor 72 of the connected smartphone 50 (details will be described later).
  • the phone side connection control task issues a disconnection request in which the camera ID for identifying the transmission source of the specified live image and its own phone ID are described. It transmits through communication I / F64.
  • the camera ID that identifies the transmission source of the designated live image is then deleted from the connection register RGSTc.
  • the camera side connection control task deletes the requester's phone ID and specification information from the register RGST1.
  • the number of phone IDs registered in the register RGST1 is updated from “1” to “0”, the display of the live image on the LCD monitor 30 is resumed as described above.
  • the camera side communication control task instructs the communication I / F 42 to start the moving image transfer process.
  • the camera-side communication control task also selects a specification representing the minimum quality from one or more specifications registered in the register RGST1, and sets the transfer image quality conforming to the selected specification in the communication I / F 42.
  • the transfer quality set in the communication I / F 42 is updated every time the description of the register RGST1 is updated in the range where the number of registered camera IDs is “1” or more.
  • the communication I / F 42 periodically reads the image data stored in the YUV image area 26a through the memory control circuit 24, and adjusts the quality of the read image data with reference to the transfer image quality set as described above. Then, the image data having the adjusted quality is transferred to the smartphone 50 as live image data. Note that the broadcast method is adopted as the transfer method. Further, one or more camera IDs registered in the register RGST1 are embedded in the live image data to be transferred. When the description of the register RGST1 is updated, the camera ID embedded in the live image data is also updated.
  • the live image data is transferred from the digital camera 10 to the smartphone 50 in the manner shown in FIG.
  • the live image data is transferred from the digital camera 10 to the smartphone 50 in the manner shown in FIG.
  • the phone side communication control task starts reception of live image data in which a camera ID matching the camera ID described in the connection register RGSTc is embedded. A corresponding command is given to the communication I / F 64.
  • the live image data received by the communication I / F 64 is given to the memory control circuit 66.
  • the memory control circuit 66 writes the given live image data in the SDRAM 68 with reference to the arrangement determined in the above manner.
  • the camera ID that identifies the detected transmission source is deleted from the connection register RGSTc.
  • the reception mode of the live image data by the communication I / F 64 reflects the description of the connection register RGSTs after the deletion process.
  • the reception of live image data is stopped when the number of camera IDs registered in the connection register RGSTc is updated from “1” to “0”.
  • the phone side display control task instructs the LCD driver 70 to start displaying the live image.
  • the LCD driver 70 reads the live image data stored in the SDRAM 68 through the memory control circuit 66 and drives the LCD monitor 72 based on the read live image data. As a result, one or more live images are displayed on the monitor screen in the order according to the reception intensity.
  • the phone-side display control task instructs the LCD driver 70 to enlarge the selected live image.
  • the LCD driver 70 executes processing according to the command, and as a result, the selected live image is enlarged.
  • the phone side display control task instructs the LCD driver 70 to end the enlarged display.
  • the LCD driver 70 executes processing according to the command, and as a result, the size of the enlarged live image is returned to the original size.
  • the phone side imaging control task starts to accept the zoom operation and the imaging operation.
  • the zoom operation corresponds to an operation of pinching in or out of a desired live image
  • the imaging operation corresponds to an operation of touching the desired live image twice in succession.
  • the phone side imaging control task issues a zoom instruction through the communication I / F 64.
  • zoom magnification information according to the pinch-in operation or pinch-out operation, the camera ID of the source of the desired live image, and the own phone ID are described.
  • the camera-side imaging control task determines that the camera ID described in the zoom instruction matches the own camera ID and the phone described in the zoom instruction.
  • the zoom process is executed on the condition that the ID matches any phone ID registered in the register RGST1.
  • the zoom lens 12 is moved in the zoom-in direction or the zoom-out direction by the driver 20a. As a result, the magnification of the desired live image displayed on the LCD monitor 72 of the smartphone 50 changes.
  • the phone side imaging control task issues an imaging instruction through the communication I / F 64.
  • the issued imaging instruction describes the camera ID of the transmission source of the desired live image and the own phone ID (see FIG. 7). Further, the imaging instruction is transmitted to the digital camera 10 in the manner shown in FIG. 8 or FIG.
  • the phone side imaging control task also instructs the LCD driver 70 to interrupt the display of a desired live image after issuing the imaging instruction. As a result, the desired live image is updated to a black image.
  • the user of the smartphone 50 can visually recognize that the imaging instruction has been issued by updating the display image from the live image to the black image.
  • the still image acquired from the digital camera 10 is displayed on the LCD monitor 70 for preview, if the display of the black image is omitted, the display on the LCD monitor 70 is updated from the live image to the still image, This may confuse the user of the smartphone 50.
  • the display of the black image also brings an advantage of avoiding confusion of the user of the smartphone 50 when displaying a still image as a preview.
  • the camera-side imaging control task causes the camera ID described in the imaging instruction to match the own camera ID and the phone described in the imaging instruction.
  • a series of processes including a strict AE process, an AF process, and a still image capturing process is executed on condition that the ID matches one of the phone IDs registered in the register RGST1.
  • the camera side communication control task instructs the communication I / F 42 to transfer the still image data acquired thereby.
  • the communication I / F 42 reads the still image data saved in the still image area 26b through the memory control circuit 24, and transfers the read still image data to the issuer of the imaging instruction.
  • the unicast method is adopted as the transfer method, and the phone ID of the issuer of the imaging instruction is embedded in the transferred still image data.
  • the phone side imaging control task instructs the memory I / F 74 to record the received still image data.
  • the received still image data is recorded in the flash memory 74 in a file format by the memory I / F 74.
  • the phone side imaging control task gives the LCD driver 70 resumption of display of the interrupted live image. As a result, display of a desired live image is resumed.
  • the shutter button 34sh When the shutter button 34sh is operated in a state where the digital camera 10 and the smartphone 50 are connected, the still image data acquired by the still image capturing process is recorded on the recording medium 38 by the memory I / F 42 ( (See FIG. 8).
  • the camera side imaging control task is configured as shown in FIG. 10
  • the camera side display control task is configured as shown in FIG. 11
  • the response processing task is configured as shown in FIG.
  • the camera side connection control task is configured as shown in FIGS. 13 to 14, and the camera side communication control task is configured as shown in FIGS.
  • the task priority decreases in the order of camera-side imaging control task ⁇ camera-side communication control task ⁇ camera-side display control task ⁇ response processing task ⁇ camera-side connection control task.
  • the camera-side display control task shown in FIG. 11 is omitted in the digital camera 10 shown in FIG.
  • step S1 the moving image capturing process is started.
  • raw image data representing a scene captured on the imaging surface is periodically output from the imaging device 18, and corresponding YUV format image data is periodically output from the camera processing circuit 22.
  • step S3 an imaging instruction (a camera ID that matches the camera ID of the camera and a phone ID that matches any phone ID registered in the register RGST1 is issued by operating the shutter button 34sh or from the smartphone 50). It is determined whether or not a logical sum condition that the communication I / F 42 is received) is satisfied. If a determination result is NO, it will progress to step S5 and will perform a simple AE process. As a result, the brightness of the image data output from the camera processing circuit 22 is adjusted appropriately.
  • step S7 the zoom button 34z is operated or a zoom instruction issued from the smartphone 50 (a camera ID that matches the own camera ID and a phone ID that matches any phone ID registered in the register RGST1). It is determined whether or not a logical OR condition that the communication I / F 42 is received) is satisfied. If the determination result is NO, the process directly returns to step S3, whereas if the determination result is YES, the zoom process is performed in step S9, and then the process returns to step S3. As a result of the zoom process, the zoom lens 12 moves in the zoom-in direction or the zoom-out direction, and the magnification of the image data output from the camera processing circuit 22 changes.
  • step S3 If the decision result in the step S3 is YES, a strict AE process is executed in a step S11, and an AF process is executed in a step S13.
  • the brightness of the image data is adjusted to an optimum value by the strict AE process, and the sharpness of the image data is improved by the AF process.
  • step S13 When the process of step S13 is completed, a still image capturing process is executed in step S15.
  • One frame of image data representing a scene at the time when AF processing is completed is saved as still image data from the YUV image area 26a to the still image area 26b.
  • step S17 it is determined whether or not the trigger for updating the determination result in step S3 from NO to YES is an operation of the shutter button 34sh. If the determination result is NO, that is, if the trigger is an imaging instruction from the smartphone 50, the process directly returns to step S3. On the other hand, if the determination result is YES, that is, if the trigger is an operation of the shutter button 34sh, the memory I / F 36 is commanded to execute the recording process in step S19.
  • the memory I / F 36 reads the still image data saved in the still image area 26b through the memory control circuit 24, and records an image file containing the read still image data on the recording medium 38. When the recording process is completed, the process returns to step S3.
  • step S21 the moving image display process is started.
  • a live image representing a scene captured on the imaging surface is displayed on the LCD monitor 30.
  • step S23 it is determined whether or not the shutter button 34sh has been operated.
  • step S25 it is determined whether or not a connection with at least one smartphone 50 has been established. The determination process in step S25 is executed based on the notification issued in step S63 described later.
  • step S23 When the determination result in step S23 is updated from NO to YES, the moving image display process is interrupted in step S27.
  • the display on the LCD monitor 30 is updated from a live image to a black image.
  • step S29 it is determined whether or not the recording process in step S19 shown in FIG. 10 has been completed.
  • the moving image display process is restarted in step S31, and then the process returns to step S23.
  • step S25 When the determination result in step S25 is updated from NO to YES, the moving image display process is interrupted in step S23.
  • the display on the LCD monitor 30 is updated from a live image to a black image, as described above.
  • step S35 it is determined whether or not the connection with all the smartphones 50, 50,. This determination processing is executed based on the notification issued in step S77 described later.
  • the process returns to step S23 through the process of step S31.
  • step S41 it is determined whether or not a response request has been received by communication I / F.
  • the process proceeds to step S43, and ACK is returned through the communication I / F 42.
  • the received response request describes the phone ID that identifies the requesting smartphone 50, and the ACK returned in step S43 describes the camera ID that identifies itself and the requesting phone ID.
  • the process returns to step S41.
  • the digital camera 10 belongs to any one of a plurality of predefined groups, and a group ID for identifying the group to which the digital camera 10 belongs is assigned to the digital camera 10. This group ID is added to the camera ID described in ACK in step S43 in an expanded manner.
  • step S ⁇ b> 51 it is determined whether or not a connection request issued from a neighboring smartphone 50 has been received by the communication I / F 42.
  • the connection request specification information indicating the specification of the requesting smartphone 50 is described in addition to the requested camera ID and the requesting phone ID. If the decision result in the step S51 is YES, an authentication process is executed in a step S53.
  • step S55 it is determined whether or not the connection with the requesting smartphone 50 has been approved based on the result of the authentication process. If the determination result is NO, the process returns to step S51, whereas if the determination result is YES, step S57. Proceed to
  • step S57 an ACK describing its own camera ID and requesting phone ID is transmitted through the communication I / F 42.
  • the request source phone ID and specification information are extracted from the connection request, and the extracted phone ID and specification information are registered in the register RGST1.
  • step S61 it is determined whether or not the number of phone IDs registered in the register RGST1 is “1”. If the determination result is NO, the process returns to step S51, whereas if the determination result is YES, the process proceeds to step S63. .
  • step S63 the establishment of the connection with the smartphone 50 is notified to other tasks. When the notification is completed, the process returns to step S51.
  • Step S51 determines whether or not at least one phone ID is registered in the register RGST1 in a step S65. If a determination result is NO, it will return to Step S51, and if a determination result is YES, it will progress to Step S67.
  • Step S67 it is determined whether or not a non-connection request issued from the connected smartphone 50 is received by the communication I / F 42.
  • the request source phone ID and the request destination camera ID are described.
  • Whether or not the requesting smartphone 50 is connected to itself is determined based on the description in the register RGST1 and the phone ID described in the non-connection request.
  • step S69 it is determined whether or not the number of phone IDs registered in the register RGST1 is “0”. If a determination result is NO, it will return to step S51 as it is. On the other hand, if a determination result is YES, it will progress to step S73 and will notify cancellation
  • the issued response request describes its own camera ID and one or more phone IDs registered in the register RGST1.
  • the smartphone 50 having the same phone ID as the phone ID described in the response request returns an ACK by the process of step S165 described later.
  • the return source phone ID and the return destination camera ID are described.
  • step S79 referring to the reception status of the ACK returned in this manner, the smartphone 50 that cannot maintain the connection is specified.
  • the identified phone ID and specification information of the smartphone 50 are deleted from the register RGST1 in step S69.
  • step S81 it is determined whether or not a connection with at least one smartphone 50 has been established. This determination process is executed based on the notification issued in step S63 described above. When the determination result is updated from NO to YES, the process proceeds to step S83 to command the communication I / F 42 to start the moving image transfer process.
  • step S85 a specification representing the minimum quality is selected from one or more specifications registered in the register RGTS1, and in step S87, a transfer image quality that conforms to the specification selected in step S85 is set in the communication I / F 42. To do.
  • the communication I / F 42 periodically reads the image data stored in the YUV image area 26a through the memory control circuit 24, and adjusts the quality of the read image data with reference to the transfer image quality set in step S87. Then, the image data having the adjusted quality is transferred to the smartphone 50 as live image data. Note that the broadcast method is adopted as the transfer method. Further, one or more camera IDs registered in the register RGST1 are embedded in the live image data to be transferred. When the description of the register RGST1 is updated, the camera ID embedded in the live image data is also updated.
  • step S89 it is determined whether or not the description of the register RGST1 has been updated.
  • step S95 it is determined whether or not an imaging instruction has been given. Note that the imaging instruction to be noticed in step S95 is an instruction in which a camera ID that matches its own camera ID and a phone ID that matches any phone ID registered in the register RGST1 are described.
  • step S89 If the determination result of step S89 is YES, it will be discriminate
  • step S93 the communication I / F 42 is commanded to stop moving image transfer processing, and then the process returns to step S81. As a result of the processing in step S93, the communication I / F 42 stops the broadcast transfer of live image data.
  • step S95 When the determination result in step S95 is updated from NO to YES, it is determined in step S97 whether or not the above-described still image capturing process in step S15 is completed.
  • the process proceeds to step S99, and the communication I / F 42 is commanded to transfer the still image data to the issuer of the imaging instruction.
  • the communication I / F 42 reads the still image data saved in the still image area 26b through the memory control circuit 24, and transfers the read still image data to the issuer of the imaging instruction.
  • the unicast method is adopted as the transfer method, and the phone ID that issued the imaging instruction is described in the transferred still image data.
  • step S101 it is determined whether or not the transfer of the still image data is completed. If the determination result is updated from NO to YES, the process returns to step S89.
  • the search processing task is configured as shown in FIG. 17, the phone side connection control task is configured as shown in FIGS. 18 to 19, and the phone side communication control task is shown in FIG.
  • the phone-side display control task is configured as shown in FIG. 21, and the phone-side imaging control task is configured as shown in FIG.
  • the search register RGSTs is initialized in step S113, and a response request describing its own phone ID is issued in step S115.
  • the response request is issued in a broadcast manner through the communication I / F 64.
  • step S117 it is determined whether or not an ACK describing its own phone ID has been received by the communication I / F 64.
  • step S119 it is determined whether or not a timeout has occurred. If the determination result of step S119 is NO, it will return to step S117, and if the determination result of step S119 is YES, it will return to step S111.
  • step S117 If the determination result in step S117 is YES, the return source ID described in the received ACK is extracted in step S121, and it is determined in step S123 whether or not the extracted return source ID is a camera ID. If a determination result is NO, it will return to step S117, and if a determination result is YES, it will progress to step S125.
  • step S125 the extracted camera ID is registered in the search register RGSTs. The group ID added to the camera ID in an expanded manner is registered in the register RGST2 corresponding to the camera ID. When registration is completed, the process returns to step S111.
  • step S131 it is determined whether or not at least one camera ID is registered in search register RGSTs. If the determination result is YES, the LCD driver 70 is commanded to display a group menu in step S133. The LCD driver 70 detects one or more group IDs from the search register RGSTs, and displays the detected group IDs on the LCD monitor 72 as a group menu.
  • step S139 the connection register RGSTc is initialized, and in step S141, a connection request is issued through the communication I / F 64.
  • the issued connection request describes its own phone ID and specification information, and further describes one or more camera IDs described in the search register RGSTs corresponding to the selected group ID.
  • step S143 it is determined whether or not an ACK describing its own phone ID has been received by the communication I / F 64.
  • step S145 it is determined whether or not a timeout has occurred. Note that the ACK noted in step S143 is an ACK returned in response to the connection request issued in step S141, and is distinguished from the ACK noted in step S117.
  • step S145 determines whether the determination result of step S145 is NO, the process returns to step S143, and if the determination result of step S143 is YES, the process proceeds to step S147.
  • step S147 the camera ID described in the returned ACK is registered in the connection register RGSTc. Therefore, when a plurality of ACKs are returned in the period until timeout occurs, a plurality of camera IDs are registered in the connection register RGSTc.
  • step S145 If the determination result in step S145 is updated from NO to YES, it is determined in step S149 whether or not at least one camera ID is registered in the connection register RGStc. If a determination result is NO, it will return to Step S131, and if a determination result is YES, it will progress to Step S151.
  • step S151 it is determined whether or not a disconnection operation has been performed.
  • step S159 it is determined whether or not the response request issued in step S77 described above has been received by the communication I / F 64.
  • the non-connection operation is executed by designating one of one or two or more live images displayed on the LCD monitor 72 by processing in step S193 described later.
  • step S151 If the decision result in the step S151 is YES, the process advances to a step S153 to designate the digital camera 10 corresponding to the live image transmission source designated by the non-connection operation.
  • step S155 a non-connection request in which the camera ID of the designated digital camera 10 and its own phone ID are described is transmitted through the communication I / F 64.
  • step S157 the camera ID of the designated digital camera 10 is deleted from the connection register RGSTc. When the deletion is completed, the process returns to step S149.
  • step S159 If the determination result of step S159 is YES, the camera ID described in the response request is detected in step S161. In step S163, it is determined whether or not the same camera ID as the detected camera ID is registered in the connection register RGSTc. If the determination result is NO, the process returns to step S149. If the determination result is YES, the process proceeds to step S165. move on. In step S165, an ACK describing its own phone ID and requesting camera ID is transmitted through the communication I / F 64. When the transmission is completed, the process returns to step S149.
  • step S171 it is determined whether or not at least one camera ID is registered in connection register RGSTc. If the determination result is updated from NO to YES, the process proceeds to step S173.
  • One or more digital cameras 10 registered in the connection register RGSTc start transmitting live image data through the process of step S83 described above.
  • the transmitted camera ID is described in the transmitted live image data.
  • step S173 a corresponding command is sent to the communication I / F 64 in order to start receiving the live image data thus transmitted (live image data in which the camera ID matching the camera ID described in the connection register RGSTc is embedded). give.
  • the live image data received by the communication I / F 64 is given to the memory control circuit 66.
  • the memory control circuit 66 writes the given live image data in the SDRAM 68 with reference to the arrangement determined in step S177.
  • step S183 the detected digital camera 10 camera is detected.
  • the ID is deleted from the connection register RGSTc.
  • the reception mode of the live image data by the communication I / F 64 reflects the description of the connection register RGSTs after the deletion process.
  • step S185 it is determined whether or not the number of camera IDs registered in the connection register RGSTc is “0”. If the determination result is NO, the process returns to step S175. If the determination result is YES, the process proceeds to step S187. move on. In step S187, the communication I / F 64 is instructed to stop receiving live image data, and then the process returns to step S171.
  • step S191 it is determined whether or not reception of live image data is started by the process in step S173, and if the determination result is updated from NO to YES, the process proceeds to step S193.
  • step S193 a corresponding command is given to the LCD driver 70 to start displaying a live image.
  • the LCD driver 70 reads the live image data stored in the SDRAM 68 through the memory control circuit 66 and drives the LCD monitor 72 based on the read live image data. As a result, one or more live images are displayed on the monitor screen in the order according to the reception intensity.
  • step S195 it is determined whether or not an image selection operation for selecting any one of the live images displayed on the monitor screen has been performed. If the determination result is NO, the process proceeds to step S203, and if the determination result is YES, the process proceeds to step S197.
  • step S197 the LCD driver 70 is instructed to enlarge the selected live image. The LCD driver 70 executes processing according to the command, and as a result, the selected live image is enlarged.
  • step S199 it is determined whether or not a selection canceling operation has been performed. If the determination result is NO, the process proceeds directly to step S203. To do. As a result of the processing in step S201, the size of the enlarged live image is returned to the original size. When the process of step S201 is completed, the process proceeds to step S203.
  • step S203 it is determined whether or not the reception of live image data is stopped by the process in step S187.
  • the LCD driver 70 is commanded to stop displaying the live image in step S205, and then the process returns to step S191.
  • step S211 it is determined whether or not live image display has been started by the processing in step S193.
  • the determination result is updated from NO to YES
  • the imaging operation corresponds to an operation of touching a desired live image twice in succession.
  • the zoom operation corresponds to an operation for pinching in or pinching out a desired live image.
  • step S217 When the determination result of step S215 is updated from NO to YES, the process proceeds to step S217, and a zoom instruction is issued to the transmission source of the desired live image.
  • the zoom instruction is issued through the communication I / F 64.
  • the issued zoom instruction describes zoom magnification information corresponding to the pinch-in operation or pinch-out operation, the camera ID of the issue destination, and the own phone ID.
  • step S213 If the determination result in step S213 is YES, an imaging instruction is issued to a desired live image transmission source.
  • the imaging instruction is issued through the communication I / F 64, and the issued camera ID and the own phone ID are described in the issued imaging instruction.
  • step S221 a command corresponding to the LCD driver 70 is given to interrupt the display of a desired live image.
  • step S223 it is determined whether or not still image data from the issue destination of the imaging instruction has been received by the communication I / F 64. If the determination result is YES, the process proceeds to step S225 to instruct the memory I / F 74 to record the received still image data. The received still image data is recorded in the flash memory 74 in a file format by the memory I / F 74. When the recording is completed, the process proceeds to step S227. In step S227, a corresponding command is given to the LCD driver 70 in order to resume the display of the live image interrupted by the process of step S221. When the process of step S227 is completed, the process returns to step S211.
  • the imaging device 18 of the digital camera 10 outputs image data representing an optical image captured on the imaging surface.
  • the shutter button 34sh is provided in the camera housing for accepting an imaging operation
  • the communication I / F 42 is built in the digital camera 10 for accepting an imaging instruction from the smartphone 50 connected ad hoc.
  • the camera CPU 32 acquires still image data in response to the operation of the shutter button 34 sh or in response to the imaging instruction received by the communication I / F 42 (S 3, S 15).
  • the camera CPU 32 also records the still image data acquired in response to the operation of the shutter button 34sh on the recording medium 38 (S19), and the still image acquired in response to the imaging instruction received by the communication I / F 42. Data is transferred to the outside (S97 to S99).
  • the operability can be improved by executing different processes according to the trigger for acquiring the still image data.
  • the camera CPU 32 also uniformly transmits (by broadcast method) live image data based on the raw image data output from the imaging device 18 to a plurality of smartphones 50, 50,... Existing around the digital camera 10. (S83).
  • the camera CPU 32 transmits the acquired still image data to the issuer of the imaging instruction in a special manner (unicast method) ( S97 ⁇ S99).
  • still image data acquired in response to an imaging instruction issued from the smartphone 50 is transmitted to the issuer of the imaging instruction. You may make it transmit to the different smart phone 50.
  • FIG. preferably, a camera ID indicating a transmission destination of still image data is described in the imaging instruction.
  • the multitask OS and control programs corresponding to a plurality of tasks executed thereby are stored in advance in the flash memories 40 and 62, respectively.
  • a part of the control program may be prepared as an internal control program in each of the flash memories 40 and 62 from the beginning, while another part of the control program may be acquired from the external server as an external control program.
  • the external control program is acquired through each of the communication I / Fs 42 and 64. Further, the above-described operation is realized by cooperation of the internal control program and the external control program.
  • each of the camera CPU 32 and the smartphone CPU 60 is divided into a plurality of tasks as described above.
  • each task may be further divided into a plurality of small tasks, and a part of the divided plurality of small tasks may be integrated with other tasks. Further, when each task is divided into a plurality of small tasks, all or part of the tasks may be acquired from an external server.
  • the camera system of this embodiment can be modified as follows. Further, the following twenty-four modifications and the above-described embodiments may be integrated into one modification within a consistent range. In other words, a modification example in which the following 24 modification examples and the above-described embodiment are integrated within a consistent range corresponds to the 25th modification example. [Modification 1]
  • a plurality of digital cameras 10, 10,... are installed in a sightseeing spot, and the smartphone 50 is carried by a traveler who has visited this sightseeing spot.
  • Each digital camera 10 is provided with an LED.
  • the LCD monitor 72 of the smartphone 50 displays one or more camera IDs that identify each connectable digital camera 10 at a stage before connection. When one of the displayed camera IDs is selected by a traveler's operation, the LED of the digital camera 10 corresponding to the selected camera ID emits light.
  • the digital camera 10 to be connected can be confirmed before connection, and the operability is improved.
  • the plurality of digital cameras 10, 10,... Have different specifications (imaging mode, live image data frame rate, still image data resolution, optical zoom magnification, electronic zoom capability, ISO sensitivity, white balance type, camera shake function, etc. And is present in a state where it can be connected to the smartphone 10.
  • each digital camera 10 transmits its specification information to the smartphone 50.
  • the smartphone 50 identifies the highest quality setting that can be set by any of the plurality of connected digital cameras 10, 10,..., And requests the plurality of digital cameras 10, 10,.
  • common and high-quality live image data can be received from the plurality of digital cameras 10, 10,.
  • a single digital camera 10 is connected to a plurality of smart phones 50, 50,.
  • the digital camera 10 is provided with an LED.
  • time information, position information, and altitude information at the time of the operation are detected by the smartphone 50.
  • the detected time information, position information, and altitude information are described in an imaging instruction issued in response to the imaging operation.
  • the digital camera 10 that has received the imaging instruction assigns time information, position information, and altitude information described in the imaging instruction to still image data created in response to the imaging instruction. There is no need to provide a clock circuit, a GPS device, and an altimeter in the digital camera 10.
  • the digital camera 10 is provided with a clock circuit that measures the local time.
  • the local time measured by the clock circuit is assigned to the still image data created in response to the operation of the shutter button 34sh.
  • the digital camera 10 is connected to the smartphone 50, the standard time detected by the smartphone 50 is notified to the digital camera 10.
  • the digital camera 10 calculates a difference between the notified local time and the notified standard time, and corrects the local time assigned to the still image data based on the calculated difference. As a result, a standard time is assigned to the still image data. [Modification 6]
  • the smartphone 10 is connected to a plurality of digital cameras 10, 10,... Having different optical system specifications (aperture setting range, focus adjustment range, zoom magnification variable range). Each digital camera 10 notifies the smartphone 10 of optical system specifications and optical settings (aperture amount, number of focus steps, and number of zoom steps). The notification of the optical setting is executed every time the optical setting is changed. The smartphone 10 displays the notified specifications and optical settings on the LCD monitor 72 in a manner that allows comparison between cameras. The operability when adjusting the optical settings of the connected digital camera 10 is improved.
  • the structure of the diaphragm mechanism such as the number of diaphragm blades and the shape of the diaphragm is additionally notified to the smartphone 50 as part of the specifications of the optical system.
  • the digital camera 10 assigns an identification number according to the connection order to each connected smartphone 50.
  • the identification number assigned to the destination smartphone 50 is added to the live image data transferred from the digital camera 10 to each smartphone 50.
  • outer frame characters having different colors are multiplexed according to the identification numbers added in this way.
  • Each smartphone 50 notifies the digital camera 10 of imaging conditions (white balance, image finishing, image size, etc.) of the digital camera 10.
  • the digital camera 10 manages the notified imaging conditions for each smartphone 50. For example, for a certain smartphone 50, white balance: auto / image finishing: vivid / compressed image size: 16M bytes, and for other smartphones 50, white balance: sunlight / image finishing: landscape / compressed image size: 2M. Management that uses bytes is considered.
  • the digital camera 10 acquires still image data with quality according to the imaging conditions notified from the issuing smartphone 50. Thereby, the quality of still image data can be adjusted adaptively.
  • the digital camera 10 When the digital camera 10 is connected to the smartphone 50, the battery consumption of the digital camera 10 increases as compared to when the digital camera 10 is not connected. Based on this, the digital camera 10 periodically transmits the remaining battery level to the connected smartphone 50, and further releases the connection with the smartphone 50 when the remaining battery level falls below the reference. Note that when the remaining amount of the battery increases due to charging, the digital camera 10 tries to connect to the smartphone 50 or accepts a connection request from the smartphone 50. On the other hand, the smartphone 50 connected to the digital camera 10 displays the remaining battery level transmitted from the digital camera 10 on the LCD monitor 72, and the smartphone 50 is operated to release the connection with the digital camera 10 according to the remaining battery level. Encourage people. [Modification 12]
  • the quality (frame rate and resolution) of live image data transferred from the digital camera 10 to the smartphone 50 is adjusted according to the time zone.
  • the quality of the live image can be controlled adaptively.
  • the live image transmitted from the digital camera 10 is displayed on the LCD monitor 72 of the smartphone 50, and the imaging operation is received in two stages on the displayed live image.
  • the first stage operation corresponds to an operation for instructing execution of the strict AE process and the AF process
  • the second stage operation corresponds to an operation for instructing execution of a still image capturing process.
  • the digital camera 10 increases the quality (frame rate and resolution) of the live image data when receiving an instruction in response to the first-stage operation, and based on the quality of the live image data after the acquisition of the still image data is completed. return. This improves the visibility of the subject during the period from the first stage operation to the second stage operation.
  • Procedure 1 The smart phone 50 registers a user's face image.
  • Procedure 2 The smartphone 50 adds the registered face image to the connection request transmitted to the digital camera 10.
  • Procedure 3 The digital camera 10 searches a face part matching the face image added to the connection request from the visual field, and establishes a connection with the requesting smartphone 50 when the matching face part is detected.
  • Method 1 The smartphone 10 issues a connection request to the digital camera 50.
  • Procedure 2 The digital camera 10 transmits an authentication code such as a QR code (registered trademark) or a light emission pattern code to the smartphone 50.
  • Procedure 3 The smartphone 50 outputs the received authentication code. If the authentication code is a QR code (registered trademark), a QR code (registered trademark) image is displayed on the LCD monitor 72. If the authentication code is a light emission pattern code, the LED is blinked with a specific light emission pattern.
  • Procedure 4 The digital camera 10 establishes a connection with the smartphone 50 when the authentication code is detected from the visual field (when a QR code (registered trademark) image or a specific light emission pattern appears in the visual field). [Modification 16]
  • a plurality of digital cameras 10, 10,... are connected to a single smartphone 50.
  • the smartphone 50 continuously issues a zoom-in instruction or a zoom-out instruction to each digital camera 10.
  • the zoom magnification may differ between cameras before the batch zoom-in operation or the batch zoom-out operation is accepted (for example, the zoom magnification of a certain digital camera 10 is set to 3.0 times, and other (When the zoom magnification of the digital camera 10 is set to 2.0). Based on this, a zoom-in instruction or a zoom-out instruction is issued as follows.
  • a zoom-in instruction is issued in advance to the digital camera 10 set to a low zoom magnification value. If the accepted operation is a batch zoom-out operation, a zoom-out instruction is issued in advance to the digital camera 10 set to a high zoom magnification. Thus, when the difference in zoom magnification is resolved, a zoom-in instruction or a zoom-out instruction is issued to all the digital cameras 10 simultaneously.
  • a plurality of smartphones 50, 50,... are connected to the digital camera 10.
  • the digital camera 10 acquires still image data in response to an imaging instruction issued from any one of the smartphones 50, and creates screen nail image data based on the acquired still image data.
  • the digital camera 10 adjusts the resolution of the screen nail image data with reference to the specification of the smartphone 50 that issued the imaging instruction.
  • the resolution of the screen nail image data increases as the resolution of the LCD monitor 72 provided in the smartphone 50 increases, and decreases as the resolution of the LCD monitor 72 provided in the smartphone 50 decreases.
  • live image data may be transmitted to each smartphone 50 by the unicast method, and the resolution of the transmitted live image data may be adjusted according to the specification of the destination smartphone 50.
  • a plurality of smartphones 50, 50,... are connected to the digital camera 10.
  • the digital camera 10 transmits the still image data acquired in response to the first imaging instruction to the other smartphone 50 that issued the imaging instruction at a predetermined time after that in addition to the smartphone 50 that issued the first imaging instruction. To do. [Modification 19]
  • the manual mode corresponds to a mode in which the imaging conditions are adjusted according to a user operation on the smartphone 50
  • the auto mode corresponds to a mode in which the imaging conditions are adjusted uniformly.
  • the digital camera 10 permits the smartphone 50 to switch the imaging mode between the manual mode and the auto mode.
  • the digital camera 10 prohibits switching of the imaging mode and selects the auto mode fixedly.
  • a plurality of digital cameras 10 are installed in a sightseeing spot, and a smartphone 50 is carried by a traveler who has visited the sightseeing spot.
  • a smartphone 50 is connected to at least one digital camera 10
  • each digital camera 10 takes an image at an optimal timing and / or angle of view, and the still image data acquired thereby is sent to the traveler's smartphone 50.
  • the optimal timing and / or angle of view also includes the timing and / or angle of view at which the traveler is captured.
  • a single digital camera 10 and a single smartphone 50 are connected to each other.
  • the shutter button 34sh of the digital camera 10 is operated and at the same time an imaging operation is performed on the smartphone 50, on condition that the digital camera 10 is moving (someone has the digital camera 10 in hand), The operation of the shutter button 34sh is accepted with priority.
  • the digital camera 10 notifies the smartphone 50 that the imaging operation is prohibited or restricted. [Modification 23]
  • a single digital camera 10 and a plurality of smartphones 50, 50,... are connected to each other.
  • a desired URL or address is described as transmission destination information.
  • Still image data acquired by the digital camera 10 in response to the imaging instruction is captured by relaying any one of a plurality of smartphones 50, 50,... Connected to the digital camera 10 or other communication devices. It is sent to the desired URL or address described in the instruction.
  • the smartphone 50 or the communication device to be relayed is described as relay device information.
  • Still image data acquired by the digital camera 10 in response to an imaging instruction is transmitted to a desired URL or address via a relay device described in the imaging instruction.
  • the communication I / F 42 is configured as shown in FIG. 23 with respect to the image data transmission system.
  • the controller 4201 In association with the broadcast transfer, the controller 4201 periodically reads out the image data stored in the YUV image area 26 a through the memory control circuit 24.
  • the read image data is given to the encoder 4203 via the SRAM 4202.
  • the encoder 4203 adjusts the quality of the given image data with reference to the transfer image quality set in step S87, and converts the image data having the adjusted quality, that is, live image data into a broadcast packet.
  • the broadcast transmission circuit 4204 transfers the converted broadcast packet toward the surrounding smartphone 50.
  • the transfer process is executed frame by frame in synchronization with the vertical synchronization signal Vsync (see FIG. 24A).
  • the controller 4201 reads out the still image data saved in the still image area 26 b through the memory control circuit 24.
  • the read still image data is given to the encoder 4203 via the SRAM 4202.
  • the encoder 4203 converts the given image data into a unicast packet.
  • the unicast transmission circuit 4205 transfers the converted unicast packet to an imaging instruction issuer. The transfer process is executed in fragments between broadcast transfers (see FIG. 24B).
  • Encoder 4203 executes processing according to the flowchart shown in FIG. First, in step S301, it is determined whether image data serving as a basis of live image data is stored in the SRAM 4202. If the determination result is NO, the flag FLGbc is set to “0” in a step S309, and then the process proceeds to a step S311. If the determination result is YES, the process proceeds to step S303, and the quality of the image data is adjusted with reference to the transfer image quality set in the above step S87. As a result, live image data is created. In step S305, the created live image data is converted into a broadcast packet. When the conversion is completed, the flag Fbc is set to “1” in step S307, and then the process proceeds to step S311.
  • step S311 it is determined whether still image data is accumulated in the SRAM 4202. If the determination result is NO, the flag FLGuc is set to “0” in step S317, and then the process returns to step S301. If the determination result is YES, the still image data is converted into a unicast packet in step S313. When the conversion is completed, the flag FLGuc is set to “1” in step S315, and then the process returns to step S301.
  • the broadcast transmission circuit 4204 executes processing according to the flowchart shown in FIG. First, it is determined in step S321 whether or not the vertical synchronization signal Vsync has been generated, and whether or not the flag FLGbc indicates “1” is determined in step S323. If any determination result is NO, the process returns to step S321, and if any determination result is YES, the process proceeds to step S325. In step S325, the communication line is occupied, and in step S327, the broadcast packet created by the encoder 4203 is transferred toward the surrounding smartphone 50. When transfer of the broadcast packet corresponding to one frame of live image data is completed, the communication line is released in step S329, and then the process returns to step S321.
  • the unicast transmission circuit 4205 executes processing according to the flowchart shown in FIG. First, it is determined in step S331 whether or not the flag FLGuc indicates “1”, and whether or not the communication line is open is determined in step S333. If any determination result is NO, the process returns to step S331, and if any determination result is YES, the process proceeds to step S335. In step S325, a part of the unicast packet created by the encoder 4203 is transferred to the issuer of the imaging instruction. In step S337, it is determined whether or not the transfer of the unicast packet corresponding to one frame of still image data is completed. If the determination result is NO, the process returns to step S333. If the determination result is YES, step S331 is performed. Return to.
  • the broadcast packet obtained by encoding the live image data is uniformly and periodically transferred to one or two or more smartphones 50, 50,.
  • the smartphone 50 that has acquired the broadcast packet can reproduce a moving image representing a scene captured by the digital camera 10.
  • a unicast packet obtained by encoding still image data is transferred specially to the smartphone 50 that issued the imaging instruction.
  • the smartphone 50 that has issued the imaging instruction can reproduce a still image representing a scene captured in response to the imaging instruction.
  • the unicast packet transfer process is executed between broadcast packet transfer processes. As a result, a delay in unicast packet transfer processing can be suppressed. Thus, the image transfer performance is improved.

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Abstract

Dans la solution technique décrite dans la présente invention : un encodeur (4203) encode des données d'image en direct, qui sont représentatives d'une scène capturée sur un plan de capture d'image, dans le but de créer un paquet de diffusion générale ; un circuit de transmission de diffusion générale (4204) transfère de façon régulière et périodique le paquet de diffusion générale qui a été créé par l'encodeur (4203) à des Smartphones périphériques (50) ; l'encodeur (4203) encode également des données d'image fixe qui ont été acquises sur la base d'instructions de capture d'image, dans le but de créer des paquets de diffusion individuelle ; enfin, un circuit de transmission en diffusion individuelle (4205) exécute, entre des transferts en diffusion générale, des procédés consistant à transférer les paquets de diffusion individuelle créés, à des Smartphones respectifs particuliers (50), les uns après les autres.
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CN108881728A (zh) * 2018-07-26 2018-11-23 北京京东尚科信息技术有限公司 一种线下跨设备影像拍摄的方法、系统和拍摄设备

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