JP6666024B2 - Imaging device and external operation device for operating the same - Google Patents

Description

The present invention relates to an imaging device for preventing an on-screen video from being erroneously recorded during on-screen in a system in which an external storage device is connected to the imaging device, and an external operation device for operating the imaging device. is there.

  Generally, a television camera used in a television broadcasting station has an SDI (Serial Digital Interface) defined by SMPTE (American Association of Motion Picture and Television Engineers) and ARIB (General Incorporated Association of Radio Industries and Businesses) as an interface for video output. Many cameras have adopted.

  Patent Document 1 discloses that a video camera is connected to an SDI output television camera, and a control signal for controlling the video recorder is superimposed on an auxiliary data packet of the SDI to control the video recorder. I have.

Japanese Patent No. 4264655

  In Patent Literature 1, when a recording start operation switch of a television camera body is pressed, a control signal for starting recording of a video recording device is superimposed on an auxiliary data packet of SDI and output. The video recording device detects a control signal for starting recording from the auxiliary data packet and starts recording. However, when the television camera performs on-screen display for displaying the operation function of the television camera on the captured video, if the recording start switch is pressed by mistake, the on-screen video is recorded on the video recording device. .

  An object of the present invention is to provide an imaging apparatus that solves the above-described problems and prevents an image being displayed on-screen from being erroneously recorded.

Imaging device according to the present invention for achieving the above object, an imaging unit, a generation unit for generating an image related information, capable of superimposing the imaging-related information to the video signal acquired by the imaging unit an imaging device comprising an image processing unit, pre-SL and an output section you output the video signal the video signal or the imaging-related information is not superimposed imaging-related information is superimposed to the recording device, and before if recording start command with the recording image device is inputted from the command input means, said imaging after continue or discontinue the superimposed by the image processing unit based on the contents of the related information, wherein the recording start command recording device Output to the

  The imaging apparatus according to the present invention can provide an imaging apparatus that prevents an on-screen video from being erroneously recorded during on-screen display.

Configuration diagram of Embodiment 1 Example of configuration of auxiliary data packet in first embodiment Flow chart of the first embodiment Configuration diagram of Embodiment 2 Flowchart of Embodiment 2 Flowchart of Embodiment 3 Message screen display example of the third embodiment (A) Example of main menu display in Example 4, (b) Example of camera setting menu display in Example 4, (c) Example of status screen display in Example 4, (d) Example of date and time display in Example 4 Flowchart of Embodiment 4 Display example of the individual setting screen of the fifth embodiment Fifth Embodiment Flow Chart Example of UDW configuration of auxiliary data packet in Embodiment 6

  The present invention will be described in detail based on the illustrated embodiment.

  FIG. 1 is a configuration diagram of an imaging device 100 according to the first embodiment of the present invention.

  The imaging apparatus 100 includes an imaging unit 101, a video signal processing unit 102 (video processing unit), a CPU 103, an on-screen generation unit 104, a video signal 1 output unit 105, a video signal 2 output unit 106, and a communication unit 107 (command input unit). , An operation unit 108 (command input means). In the imaging device 100, an external operation device 200 for remotely operating the imaging device 100 is communicably connected to the communication unit 107 by a predetermined cable. Further, an external recording device 300 for recording a video signal output from the imaging device 100 is connected to the video signal 1 output unit 105 by a coaxial cable, and a display 400 for monitoring and displaying the video signal is connected to the video signal 2 output unit 106. They are connected by coaxial cables. In the present embodiment, the video signal output unit is configured with two systems, but may be configured with one system or a plurality of systems of three or more systems.

  A configuration that includes the imaging device 100 and the external operation device 200 of the present invention, or the external recording device 300 and the display device 400 in addition thereto may be an imaging system that enjoys the effects of the imaging device 100 of the present invention.

  The imaging unit 101 photoelectrically converts an optical image from a lens (not shown) through an imaging device (not shown) such as a CCD or a CMOS sensor, and outputs an analog signal.

  The video signal processing unit 102 converts an analog signal from the imaging unit 101 into a digital signal, adjusts predetermined image processing such as gain, luminance, and color according to a command signal from the CPU 103 (control unit), and converts the image into a digital video signal. The signal is output to the signal 1 output unit 105 and the video signal 2 output unit 106. In addition, the video signal processing unit 102 generates on-screen information (hereinafter also referred to as OSD information) for on-screen display for displaying an operation function (imaging-related information) of the imaging device on the captured video, 104. Then, characters, symbols, icons, and the like that display the operation functions of the imaging device 100 are combined (superimposed) with the video signal from the imaging unit 101 together with the captured video.

  The video signal 1 output unit 105 and the video signal 2 output unit 106 convert the digital video signal from the video signal processing unit 102 into a serial digital signal such as an HD-SDI, 3G-SDI signal and output. The HD-SDI and 3G-SDI signals are SDI (serial digital interface) standards defined by SMPTE (American Film and Television Engineers Association) and ARIB (registered trademark) (Radio Industry Association).

  The CPU 103 is connected to the imaging unit 101, the video signal processing unit 102, the on-screen generation unit 104, the video signal 1 output unit 105, the video signal 2 output unit 106, the communication unit 107, and the operation unit 108, and sets and controls each unit. It is carried out.

  When a predetermined switch (not shown) is pressed on the operation unit 108 or the external operation device 200, the on-screen generation unit 104 displays characters, symbols, icons, and the like for displaying the operation functions of the imaging apparatus 100 based on the control of the CPU 103. Of OSD information is generated. More specifically, bitmap data such as characters, symbols, and icons and display position coordinate data on the screen for on-screen display are transmitted (input) to the video signal processing unit 102 in a predetermined format.

  The communication unit 107 is an interface for transmitting and receiving a command signal (command) for operating the gain, the shutter, and the like of the imaging device 100 using the external operation device 200 in a predetermined format such as RS-232C or RS-422. Also, a command signal from the external operating device 200 is transmitted and received to and from the CPU 103 in a predetermined format.

  The operation unit 108 is a key switch for operating the imaging device 100, a touch panel, or the like.

  Next, how the external recording device 300 starts recording will be described.

When a predetermined recording start switch (not shown) is pressed by the operation unit 108 or the external operation device 200, the CPU 103 causes the video signal 1 output unit 105 and the video signal 2 output unit 106 to start recording by a recording start command (recording). (Start command). The video signal 1 output unit 105 and the video signal 2 output unit 106 record the recording start command in the Y or _CB / _CR data sequence auxiliary data multiplexable area specified in SMPTE, which will be described later (excluding video data). Superimposed on a predetermined position (of the region).

  FIG. 2 shows an auxiliary data packet structure of the present embodiment. ADF (auxiliary data flag), DID (data identification word), SDID (second data identification word), DC (data count word), UDW (user data word), and CS (check sum word). ADF, DID, and SDID have predetermined values, and UDW is composed of 11 words.

  In this embodiment, as shown in FIG. 2, the recording start command is set to the recording start by setting the bit number b1 of the eleventh word of the UDW (hereinafter, UDW10) to 1. Recording is stopped by setting b1 of the UDW 10 to 0. Although the second embodiment uses the second format auxiliary data packet structure defined by SMPTE, the first format auxiliary data packet structure may be used.

  The external recording device 300 detects a predetermined DID and SDID from the auxiliary data packet of the SDI signal output from the video signal 1 output unit 105, and starts recording when the bit number b1 of the UDW 10 is 1. ing. On the other hand, if b1 of the UDW 10 is 0, the recording is stopped.

  Next, a flow for preventing the imaging device 100 from erroneously recording an on-screen video during the on-screen will be described with reference to FIG.

  When a predetermined recording start switch is pressed from the operation unit 108 or the external operation device 200 (step S1), a predetermined recording start command is transmitted to the CPU 103 of the imaging device 100 (step S2). When the CPU 103 receives the predetermined recording start command (step S3), it detects the presence or absence of on-screen display (step S4). If the on-screen display is being performed, the CPU 103 transmits a command signal to stop the on-screen display to the on-screen generation unit 104 (step S5). If the on-screen display is not being performed, the process proceeds to step S7. The on-screen generation unit 104 stops transmitting the OSD information transmitted to the video signal processing unit 102 (Step S6). Next, the CPU 103 transmits a command signal to the video signal 1 output unit 105 and the video signal 2 output unit 106 to superimpose the recording start command (step S7). The video signal 1 output unit 105 and the video signal 2 output unit 106 set the bit number b1 of the UDW 10 of the auxiliary data packet to 1 and output it in a predetermined format (step S8). Finally, the external recording device 300 detects a predetermined DID and SDID of the auxiliary data packet, and starts recording because the bit number b1 of the UDW 10 is 1 (step S9).

  That is, when a recording start command in the recording device is input, the video signal processing unit does not superimpose the imaging-related information on the video signal acquired by the imaging unit, and the video signal output unit outputs the imaging-related information. Is output to a recording device as an output video signal.

  As described above, even when the recording apparatus 100 receives the recording start command from the operation unit 108 or the external operation device 200 by mistake during the on-screen display, the imaging apparatus 100 hides the on-screen display and starts recording. The command is superimposed on a predetermined format and output. This makes it possible to prevent the video being displayed on-screen from being erroneously recorded. Also, when it is necessary to start recording suddenly during the on-screen, the on-screen display is hidden by pressing a predetermined switch of the operation unit 108 or the external operation device 200 in order to hide the on-screen display. It is also possible to save the trouble of making.

  In the first embodiment, when a predetermined recording start switch is pressed by the external operation device 200, the CPU 103 determines whether or not the on-screen display is performed. When the on-screen display is performed, the on-screen is not displayed. In the present embodiment, when a predetermined recording start switch is pressed by the external operation device 200, a command for hiding the on-screen display is transmitted to the imaging device 100, and then a recording start command is transmitted. different.

  The configuration diagram of the imaging apparatus 100 is the same as that of FIG.

  FIG. 4 is a configuration diagram of the external operation device 200. The external operation device 200 includes an operation unit 201, a communication unit 202, and a CPU 203. The operation unit 201 is a key switch for operating the imaging device 100 and the external operation device 200, a touch panel, and the like. The communication unit 202 is an interface for transmitting and receiving to and from the imaging device 100 in a predetermined format such as RS-232C or RS-422. The CPU 203 is connected to the operation unit 201 and the communication unit 202, and performs setting and control of each unit.

  FIG. 5 is a flowchart of the present embodiment.

  When a predetermined recording start switch is pressed from the operation unit 201 of the external operation device 200 (step S21), the CPU 203 of the external operation device 200 captures a command to stop the predetermined on-screen display via the communication unit 202. The data is transmitted to the device 100 (step S22). Upon receiving the command to stop the predetermined on-screen display (Step S23), the imaging device 100 proceeds to Step S24 and Step S25. Steps S24 and S25 are the same as steps S6 and S7 in the flowchart of FIG. Next, when the CPU 203 of the external operation device 200 transmits the recording start command (Step S26), the imaging device 100 receives the recording start command (Step S27). After that, steps S28 to S30 are executed. Steps S28 to S30 are the same as steps S7 to S9 in the flowchart of FIG. In this embodiment, the external operation device 200 first transmits a command to stop the on-screen display when the imaging device 100 presses the recording start switch regardless of the presence or absence of the on-screen display, and then transmits a recording start command. are doing. If the imaging apparatus 100 is not performing on-screen display, a command to stop on-screen display may not be transmitted.

  As described above, when the recording start switch is pressed, the external operation device 200 transmits a command for hiding the on-screen first, thereby preventing the video being displayed on-screen from being erroneously recorded. It is possible to do.

  In the first embodiment, when the imaging device 100 receives a recording start command from the operation unit 108 or the external operation device 200 during the on-screen display, the on-screen display is hidden and the external recording device 300 transmits the recording start command to the external recording device 300. Had sent. In the third embodiment, when the imaging apparatus 100 receives a recording start command during on-screen, a message is displayed to alert the user that the on-screen display is being performed, and the recording command is not transmitted to the external recording device 300. I have to. The configuration of the third embodiment is the same as that of FIG.

FIG. 6 shows a flowchart of this embodiment.
Steps S41 to S44 are the same as steps S1 to S4 in the flowchart of FIG.

  If the on-screen display is being performed in step S44, the CPU 103 transmits a command signal for displaying a message screen as shown in FIG. 7 to the on-screen generation unit 104 (step S45). The on-screen generation unit 104 transmits the OSD information for the message screen to the video signal processing unit 102 (Step S46). If the on-screen display is not being performed in step S44, the process proceeds to step S50. When a predetermined switch is pressed from the operation unit 108 or the external operation device 200 (step S47), and the on-screen video is erased and recorded, the process proceeds to steps S49 to S52. Steps S49 to S52 are the same as steps S6 to S9 in the flowchart of FIG. When a predetermined switch is pressed from the operation unit 108 or the external operation device 200 in step S48 and the on-screen video is recorded as it is, the OSD information before displaying the message screen is transmitted (step S53) (on-screen) Display continues). Thereafter, the process proceeds to steps S50 to S52.

  As described above, in the third embodiment, when the imaging apparatus 100 erroneously receives the recording start command from the operation unit 108 or the external operation device 200 during the on-screen display, a message screen is displayed and attention is paid to the user. Encourage reminders and request additional directives. This makes it possible to prevent recording from being started accidentally during on-screen. Further, during the on-screen, the user can intentionally record the on-screen video.

  In the fourth embodiment, when the imaging apparatus 100 receives a recording start command from the operation unit 108 or the external operation device 200 during the on-screen display, the on-screen display remains or is not displayed depending on the contents of the on-screen display. To transmit a recording start command to the external recording device 300. This embodiment is different from the first to third embodiments in this point. The configuration is the same as that of the first embodiment shown in FIG.

  FIGS. 8A, 8B, 8C, and 8D show display examples when on-screen display is performed on a captured image. (A) is a display example of a main menu of the imaging device 100. 3B is a display example of a camera setting menu of the imaging apparatus 100. (C) is a display example of a status screen displaying the current setting status of the imaging device 100. (D) is a display example displaying the current date and time.

  In this embodiment, in the case of the on-screen display examples (a) and (b), it is considered that the area where the on-screen display blocks the captured image is large, and the user has accidentally pressed the recording start switch. Can be Therefore, the on-screen display is hidden, and the recording start command is transmitted to the external recording device 300. On the other hand, in the case of the on-screen display examples (c) and (d), the occluded area of the picked-up image by the on-screen display is small, and only the periphery is displayed on-screen. I want to. Therefore, the recording start command is transmitted to the external recording device 300 with the on-screen display.

  FIG. 9 shows a flowchart of this embodiment. This embodiment is the same as the flowchart in FIG. 3 of the first embodiment except that step S70 is included. In step S70, the CPU 103 determines the content of the video being displayed on-screen, and determines whether to stop or keep the on-screen display according to the display content, and in the next step S65 or Proceed to S67. In FIG. 7, steps S61 to S69 are the same as steps S1 to S9 in the flowchart of FIG.

  As described above, according to the fourth embodiment, when the imaging apparatus 100 receives a recording start command from the operation unit 108 or the external operation device 200 during on-screen display, whether the recording start command is erroneously transmitted is determined. It is determined whether the recording start command has been transmitted. This makes it possible to prevent recording from being started accidentally during on-screen.

  In the fifth embodiment, when the imaging apparatus 100 receives a recording start command from the operation unit 108 or the external operation device 200 during the on-screen display, the on-screen display content is set in advance and individually according to the contents of the on-screen display. A new setting menu screen is provided. This embodiment is different from the fourth embodiment in this point. The configuration is the same as that of the first embodiment shown in FIG.

  FIG. 10 is a display example of the individual setting menu. By pressing a predetermined button from the operation unit 108 or the external operation device 200, it is possible to individually set each content to be displayed on the screen.

  FIG. 11 shows a flowchart of this embodiment. Steps S81 to S89 are the same as steps S1 to S9 in the flowchart of FIG. In step S90 of FIG. 11, the CPU 103 proceeds to step S85 if the on-screen display is not performed according to the individual setting for each on-screen display content set in advance, and proceeds to step S87 if the on-screen display is performed.

  As described above, in the fifth embodiment, when the recording start command is received from the operation unit 108 or the external operation device 200 during the on-screen display of the imaging apparatus 100, the on-screen display / non-display is separately and individually performed in advance. It can be set. Thereby, it is possible to prevent the on-screen video from being mistakenly started to be recorded during the on-screen.

  Further, it is also possible to set on-screen display / non-display in advance and individually for each output of the video signal 1 output unit 105 and the video signal 2 output unit 106 in the configuration example of FIG.

  In the sixth embodiment, when the imaging apparatus 100 receives a recording start command from the operation unit 108 or the external operation device 200 during the on-screen display, the on-screen display is hidden and the recording is started in the UDW of the auxiliary data packet. Not only the command but also the set value of the imaging device 100 is superimposed. This embodiment is different from the first to fifth embodiments in this point.

  More specifically, in addition to the recording start command, values such as gain, shutter, ND filter, aperture, zoom, focus, date and time are superimposed on the UDW of the auxiliary data packet in FIG. The setting value of the imaging device 100 to be superimposed on the auxiliary data packet may be set in advance by providing a setting menu screen.

  As described above, even when the imaging device 100 receives a recording start command by mistake during the on-screen display, the imaging device 100 hides the on-screen display, and sets the recording start command and the set value of the imaging device 100 to a predetermined format. And output by superimposing. This makes it possible to prevent the video being displayed on-screen from being erroneously recorded. In addition, since the setting state of the imaging device 100 is superimposed on the auxiliary data packet, it is possible to confirm the setting state when the video is captured later.

  In the illustrated embodiment, when the recording start command is received, the processing in the video signal processing unit that does not superimpose the imaging-related information is executed, but the present invention is not limited to this. When the recording start command is received, the effect of the present invention can be enjoyed even if the video signal from the imaging unit is output to the recording device without passing through the video signal processing unit.

100 imaging device 101 imaging unit 102 video signal processing unit (video processing unit)
103 CPU (control unit)
104 On-screen generation unit (generation unit)
105 Video signal 1 output unit (output unit)
107 communication unit (command input means)
108 Operation unit (command input means)

Claims (6)

An imaging unit;
A generation unit that generates imaging-related information;
A video processing unit capable of superimposing the imaging-related information on a video signal acquired by the imaging unit;
An output unit that outputs the video signal on which the imaging-related information is superimposed or the video signal on which the imaging-related information is not superimposed to a recording device,
When a recording start command in the recording device is input from a command input unit, after continuing or stopping the superimposition by the video processing unit based on the content of the imaging related information, the recording start command is sent to the recording device. Output,
An imaging device characterized by the above-mentioned. Setting means for setting whether or not recording is possible for each of the imaging-related information,
When a recording start command in the recording device is input from the command input unit, after continuing or stopping the superimposition by the video processing unit based on the setting of the setting unit, the recording start command is transmitted to the recording device. Output to
The imaging device according to claim 1, wherein: An imaging unit;
A generation unit that generates imaging-related information;
A video processing unit capable of superimposing the imaging-related information on a video signal acquired by the imaging unit;
An output unit that outputs the video signal on which the imaging-related information is superimposed or the video signal on which the imaging-related information is not superimposed to a recording device,
The output unit converts the video signal into a serial digital signal,
When a recording start command in the recording device is input from a command input unit, the superimposition by the video processing unit is stopped, and the serial including the recording start command and a setting value of the imaging device in an area other than video data. Outputting a digital signal to the recording device;
An imaging device characterized by the above-mentioned. An imaging unit;
A generation unit that generates imaging-related information;
A video processing unit capable of superimposing the imaging-related information on a video signal acquired by the imaging unit;
An output unit that outputs the video signal on which the imaging-related information is superimposed or the video signal on which the imaging-related information is not superimposed to a recording device,
When a recording start command in the recording device is input from the command input unit, waits for a command regarding whether or not the superimposition is possible by the video processing unit. Do not output a recording start command to the recording device,
An imaging device characterized by the above-mentioned.   The imaging apparatus according to any one of claims 1 to 4, wherein the command input unit is an operation unit provided in the imaging apparatus or an external operation unit communicably connected to the imaging apparatus. apparatus. An imaging unit, a generation unit that generates imaging-related information, a video processing unit that can superimpose the imaging-related information on a video signal acquired by the imaging unit, and the imaging-related information that is superimposed. An output unit for outputting the video signal or the video signal, on which the imaging-related information is not superimposed, to a recording device, and an external operating device for communicating with the imaging device, and operating the imaging device,
If the operation of instructing the start of recording in the recording device is performed, after outputting a command to stop the superimposition to the imaging device, output a recording start command in the recording device to the imaging device,
An external operation device characterized by the above-mentioned.

Images