WO2006028247A1 - 映像撮影システム、映像撮影装置、及び映像撮影方法 - Google Patents
映像撮影システム、映像撮影装置、及び映像撮影方法 Download PDFInfo
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- WO2006028247A1 WO2006028247A1 PCT/JP2005/016727 JP2005016727W WO2006028247A1 WO 2006028247 A1 WO2006028247 A1 WO 2006028247A1 JP 2005016727 W JP2005016727 W JP 2005016727W WO 2006028247 A1 WO2006028247 A1 WO 2006028247A1
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- Prior art keywords
- video
- shooting
- photographing
- sub
- imaging
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
- H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
Definitions
- Video shooting system video shooting device, and video shooting method
- the present invention relates to a technical field of a video shooting system, a video shooting device, and a video shooting method.
- the first camera force is transmitted to the second camera based on the exposure value in the first camera to which the first camera power is also transmitted.
- the exposure value is controlled. Therefore, it is said that the exposure of two or more cameras at remote locations can be controlled arbitrarily by operating one camera.
- Patent Document 1 Japanese Patent Laid-Open No. 2001-281717
- the present invention has been made in view of the above-described problems, for example, and provides a video shooting system, a video shooting device, and a video shooting method capable of obtaining a high-quality video. Let it be an issue.
- a video shooting system of the present invention is accommodated in a network, and at least one main shooting device and at least one sub-shooting for shooting a video.
- the main photographing device includes a first photographing means for photographing the video, a first control means for controlling the photographing condition of the video in the first photographing means, and among the photographing conditions, Control information generating means for generating control information for causing the sub-photographing device to follow in accordance with conditions defining the composition of the video to be photographed, and the generation for the sub-photographing device via the network.
- network means, for example, a wired communication network such as a WAN (Wide Area Network) or a LAN (Local Area Network) compliant with USB (Universal Serial Bus) or IE EE1394, or the like.
- WAN Wide Area Network
- LAN Local Area Network
- USB Universal Serial Bus
- IE EE1394 Universal Serial Bus
- the “main photographing device” and the “sub photographing device” represent one of the photographing devices that constitute the video photographing system according to the present invention.
- the “photographing device” is a concept including all devices capable of photographing a subject and includes, for example, a DV (Digital Video) camera, a video camera, a camera, a digital camera, and the like. Or it refers to a digital camera or video camera mounted on a mobile terminal such as a mobile phone.
- DV Digital Video
- video is captured by the first imaging means in the main imaging apparatus and by the second imaging means in the sub-imaging apparatus.
- the image capturing conditions of the first and second imaging means are controlled by the first and second control means, respectively.
- the “video shooting conditions” in the present invention is a concept including all conditions having some relationship with the video to be shot. Specifically, for example, conditions relating to exposure such as shutter speed, aperture value, or subject depth, conditions relating to shooting methods such as fade-in or out, or various image processing, and zoom-in or out, left-right direction Rotation of the first and second imaging means (hereinafter referred to as “pan” as appropriate), or rotation of the first and second imaging means in the vertical direction (hereinafter referred to as “tilt” as appropriate), etc. This refers to all or part of the compositional conditions.
- the first and second control means control such shooting conditions, and the mode of such control is, for example, full auto control, semi-auto control, or a user via some input device.
- Various forms such as simple control based on powerful instructions can be adopted.
- full auto control even if these shooting conditions are controlled without any user operation during shooting according to a control program stored in a ROM (Read Only Memory) or some recording medium, for example. Good.
- ROM Read Only Memory
- some recording medium for example. Good.
- the main or sub-photographing device is installed via a fixing means such as a tripod, the attachment portion between the fixing means and the main or sub-photographing device is driven by a motor or the like.
- the pan or tilt may be controlled by.
- semi-automatic control for example, a part of shooting conditions such as panning or tilting may be controlled through an operation by a user.
- the main shooting device when the main shooting device is shooting while following the movement of one athlete as a subject at an athletic meet or the like, the sub-shooting device installed at another position may It is difficult to follow the shooting action and take a picture of the competitor from another direction. Therefore, the images taken by the main and sub-photographing devices tend to be low-quality images that lack sense.
- control information generating means of the main image capturing device further generates control information for causing the sub image capturing device to follow in accordance with the conditions defining the composition of the image to be captured. It is transmitted to the secondary imaging device via the network by the first communication means.
- the "imaging conditions for defining the composition” are, for example, the position of the main imaging device, the first imaging operator The direction in which the stage is shooting the image (hereinafter referred to as “shooting direction” as appropriate), the distance between the main shooting device and the subject, the zoom magnification, etc., and the composition of the image shot by the first shooting means.
- shooting direction The direction in which the stage is shooting the image
- the distance between the main shooting device and the subject hereinafter referred to as “shooting direction” as appropriate
- zoom magnification etc.
- the composition of the image shot by the first shooting means are, for example, the position of the main imaging device, the first imaging operator The direction in which the stage is shooting the image (hereinafter referred to as “shooting direction” as appropriate), the distance between the main shooting device and the subject, the zoom magnification, etc., and the composition of the image shot by the first shooting means.
- This is a concept that broadly represents the shooting conditions that can define the figure to a great extent.
- Such control information generated according to the first imaging condition is, for example, an operation accompanied by a composition change on the main imaging device side, for example, a change in installation position, a state in which the installation position is maintained ( For example, when panning or tilting in a fixed state with a tripod or the like, or when changing the zoom magnification, etc., it is information that causes the sub-photographing device to follow the main photographing device.
- the mode of the control information may be a command signal that positively controls the operation of the sub-photographing device, and the sub-photographing device side transfers to the main photographing device according to some control program or control algorithm. If follow-up control is possible, the information may simply represent the amount of change in shooting conditions.
- this control information is received by the second communication means via the network. Based on the received control information, the second control means of the sub-photographing device controls the video shooting conditions in the second photographing means described above.
- the control of the photographing conditions by the second control means can take various forms depending on the form of the control information transmitted from the main photographing apparatus. For example, as described above, when the control information is a type of command signal, the zoom magnification may be changed according to the command signal, or the sub-shooting device may be panned or tilted.
- the second control means estimates the current operation of the main photographing apparatus and contacts the main photographing apparatus. Control may be performed so that the video is shot under shooting conditions that best match the video being shot. Note that the basis for such an estimation may be given in advance by experiment, empirical, simulation, or the like.
- the shooting condition may be controlled by providing information prompting the user to change the condition. That is, as compared with the case where no such control is performed, as long as the shooting conditions on the sub-photographing device side can be improved following the shooting conditions on the main-photographing device side.
- the manner of controlling the photographing conditions performed by the second control means is not limited at all.
- such "information for prompting the change of the second imaging condition" is provided through such a display means when the secondary imaging apparatus is provided with some display means such as a liquid crystal display. May be information. For example, if you want to pan the sub-photographing device by 30 ° to the right, display an arrow mark to the right on the display means, and when the user pans the sub-photographing device by 30 degrees, The second control means may control the photographing conditions by terminating the display. Alternatively, such information may be a kind of audio information when the sub-photographing device is provided with audio output means such as a speaker.
- a sequence of control occurs between a plurality of video imaging devices during video imaging, but the configuration of the video imaging device itself constitutes all of the video imaging system. It may be equivalent among the video photographing apparatuses. For example, such a control order may be determined each time a video shooting system is constructed and a video is shot.
- the secondary imaging device by making the secondary imaging device follow the imaging operation of the primary imaging device, for example, when the primary imaging device captures a subject up.
- the imaging device can shoot wide-angle images that look down on the subject.
- the main photographing device follows the movement of the subject and frequently performs panning or tilting, it is possible to pan or tilt the sub-photographing devices installed at different positions in exactly the same way. . In other words, it is possible to shoot extremely high quality images.
- At least one of the first and second control means is based on a preset imaging pattern, and imaging conditions corresponding to the at least one To control.
- the “preset shooting pattern” described here refers to a pattern optimized for each of various shooting purposes such as an athletic meet, a music recital, or an outdoor event.
- the "Athletic meet" shooting pattern is set as a shooting pattern that frequently pans the shooting apparatus at a predetermined timing, assuming a subject moving over a wide range.
- the shooting pattern for “music recital” is set as a shooting pattern that uses a lot of zoom, assuming a fixed subject.
- the main or sub-shooting device can easily shoot a video in the full auto mode.
- the panning range may be set on the user side in advance.
- the timing for panning (or tilting) or zooming may be specified.
- the first or second control means may control the photographing condition in accordance with such abstract designation information input by the user.
- the shooting conditions are controlled based on a preset shooting pattern, a plurality of video shooting devices are used while the sub-shooting device follows the main shooting device. It is possible to shoot higher quality video.
- At least one of the first and second control means includes the main imaging device and the secondary imaging device as the preset imaging pattern.
- the photographing conditions are controlled based on the photographing pattern corresponding to the relative positional relationship between the two.
- the "relative positional relationship" in this aspect may be a positional relationship in a strict sense, but as one of the simplest aspects, for example, an abstraction such as "close” or "far” It may be a similar distance relationship.
- an abstraction such as "close” or "far” It may be a similar distance relationship.
- the photographing orientation of the first and second photographing means is the direction of the subject. It may be an angle difference with respect to the subject. In such cases The difference in angles may also be defined including abstract concepts such as when facing forces or when they are adjacent.
- the photographing conditions in each photographing apparatus are controlled based on the photographing pattern corresponding to such a relative positional relationship. For example, when the positional relationship between the two is “facing”, when the main shooting device pans to the right, the sub-shooting device pans to the left so that the same subject is shot. You may go. Alternatively, when “the distance difference of the subject power is large”, the zoom may be compensated within an appropriate range so that the size of the subject in the image is adjusted.
- the main imaging device includes: (i) a distance to a subject; (ii) a current position of the main imaging device; and (iii) the first imaging unit.
- First acquisition means for acquiring first position information including at least one of the shooting directions is further provided.
- the first position information acquired by the first acquisition unit can add various supplementary information to the video imaged by the main imaging device, further improving the video quality. It becomes possible to make it.
- the distance to the subject in the first position information may not be strictly specified as a distance value.
- the distance to the subject may be acquired with an ambiguity of “far” or “near” as viewed from a general standard.
- the quality of the single layer video can be improved.
- the "current position" in the first position information may be an accurate current position such as latitude information, longitude information, and altitude information power, and a certain area including the current position is It may be a specified degree.
- a current position may be obtained using positioning technology such as GPS (Global Positioning System)! Or may be specified by a base station via a wireless network or the like.
- the “shooting azimuth” in the first position information may be a simple azimuth such as east, west, south, or north, or an accurate absolute azimuth obtained via a geomagnetic sensor or the like.
- a simple azimuth such as east, west, south, or north
- an accurate absolute azimuth obtained via a geomagnetic sensor or the like.
- the sub photographing device includes: (i) a distance to a subject; (ii) a current state of the sub photographing device. And (iii) second acquisition means for acquiring second position information including at least one of the imaging directions of the second imaging means.
- the first communication means sends the sub-photographing apparatus to the sub-photographing apparatus via the network.
- the acquired first position information is further transmitted
- the second communication means further receives the transmitted first position information
- the second control means is configured to receive the acquired second position information and the reception The imaging conditions are controlled based on the first position information.
- the shooting conditions are controlled based on the first position information in the main shooting device, so that there is a sense of unity between the main and sub-shooting devices. It becomes possible to shoot extremely high quality images.
- the main photographing device captures the desired subject, even if the subject is lost on the side of the secondary photographing device, the subject is quickly found and captured. This is preferable because it can be performed.
- the second communication unit is configured to transmit the main image capturing apparatus to the main image capturing apparatus via the network.
- the acquired second position information is transmitted
- the first communication means receives the transmitted second position information
- the first control means includes the acquired first position information and the reception.
- the imaging condition is controlled based on the second position information.
- each of the main and secondary imaging devices further includes authentication means for performing mutual authentication via the first and second communication means.
- control information is transmitted to at least the main imaging device and the auxiliary imaging device.
- wireless communication between these imaging devices installed at locations separated from each other is performed.
- interference may occur between the imaging device to which the control information is to be transmitted and another imaging device.
- the authentication is performed between the main and secondary imaging devices in advance through the authentication means, the possibility of such interference is remarkably reduced, and highly reliable data transmission and reception are possible. Video can be taken.
- the aspect of the authentication means is not limited as long as mutual authentication is possible between the main and secondary imaging devices, such as an ID that is unique between the imaging devices in advance. Authentication may be done by exchanging identification information.
- At least one of the primary and secondary imaging devices includes audio information acquisition means for acquiring audio information corresponding to an image captured in at least one of the main and auxiliary imaging devices.
- audio information acquisition means for acquiring audio information corresponding to an image captured in at least one of the main and auxiliary imaging devices.
- the at least On the other hand since it is possible to acquire audio information corresponding to the video imaged, the video quality is further improved.
- the first video imaging device of the present invention is accommodated in a network.
- the same effects as those of the main video imaging apparatus in the video imaging system described above can be realized by each means. It is possible to shoot a video.
- the second video imaging device of the present invention is a video imaging device that is accommodated in a network and shoots video together with other video imaging devices accommodated in the network, and captures the video. And receiving the control information generated via the network and transmitted via the network in accordance with the conditions defining the composition of the video to be shot in the imaging unit and the other video imaging device. And communication means for controlling the image capturing conditions of the image capturing means based on the received control information.
- the second video imaging apparatus of the present invention during the operation, the same effects as those of the sub-imaging apparatus in the video imaging system described above can be realized by each means. It is possible to shoot a video.
- the video shooting method of the present invention is accommodated in a network, and includes a video shooting system including at least one main shooting device and at least one sub-shooting device for shooting images.
- Video for shooting the video in conjunction with each other (Ii) a first control step of controlling the video shooting conditions in the first shooting step in the main shooting device; (ii) a first control step of controlling the shooting conditions of the video in the first shooting step; )
- a control information generating step for generating control information for causing the sub-photographing device to follow in accordance with a condition that defines the composition of the video to be photographed among the photographing conditions; and (iv) in the sub-photographing device.
- a second shooting step of shooting the video in the sub-shooting device in the transmission step of transmitting the generated control information via the network, (i) a second shooting step of shooting the video in the sub-shooting device, (ii) the transmission of the image via the network.
- a receiving step for receiving the control information and (ii) a second control step for controlling the shooting conditions of the video in the second shooting step based on the received control information.
- the video imaging method of the present invention it is possible to capture a high-quality image in the same manner as in the video imaging system, by the operation in each process corresponding to each means in the video imaging system described above. It becomes.
- the video photographing system includes the first photographing means, the first control means, the control information generating means, the first communication means, the second photographing means, the second communication means, and the second control means. It is possible to shoot high-quality images. Since the first video imaging apparatus includes the imaging means, the control means, the control information generation means, and the communication means, it is possible to take a high-quality image. Since the second video imaging apparatus includes the imaging means, the communication means, and the control means, it is possible to take a high quality video.
- the video shooting method includes a first shooting process, a first control process, a control information generation process, a transmission process, a second shooting process, a reception process, and a second control process. Is possible.
- FIG. 1 is a conceptual diagram of a video shooting system according to an embodiment of the present invention.
- FIG. 2 is a block diagram of a main camera in the video imaging system of FIG.
- FIG. 3 is a flowchart relating to the overall operation of the video imaging system of FIG.
- FIG. 4 is a flowchart of a photographing process in the flowchart of FIG.
- FIG. 5 Model showing the positional relationship between the subject and each camera in the video shooting system of Fig. 1.
- FIG. 6 is a schematic diagram of a recording process in the flowchart of FIG.
- FIG. 7 is a flowchart of video data processing in the recording processing of FIG.
- FIG. 8 is a flowchart of audio data processing in the recording processing of FIG.
- FIG. 9 is a flowchart of additional information processing in the recording process of FIG.
- FIG. 10 is a schematic diagram of a recording format in the recording process of FIG.
- FIG. 11 is a schematic diagram of the header and additional information in FIG.
- FIG. 12 is a schematic diagram of sub camera follow-up control according to a modification of the present invention.
- 10 Image shooting system, 20... Subject, 30... Network, 40 ⁇ Tripod, 100 ⁇ Main camera, 100a ⁇ User, 110 ⁇ Control unit, 111--CPU, 112 ---ROM, 113- --RAM, 120 ... Sound collecting unit, 130 ... Imaging unit, 140 ... Camera rotation unit, 150 ... Lens driving unit, 160 ... Communication unit, 170 ... Position information acquisition 171 ⁇ Distance measurement unit, 172 ⁇ Position detection unit, 173 ⁇ Location detection unit, 180 ... recording unit, 190 ... input unit, 200 ... sub camera.
- FIG. 1 is a conceptual diagram of the video photographing system 10.
- the video imaging system 10 includes a main camera 100 and a sub camera 200 housed in a network 30, and the main camera 100 and the sub camera 200 shoot the object 20 in conjunction with each other. It is structured as follows.
- Each of the main camera 100 and the sub camera 200 is fixed by a tripod 40 !.
- Each camera is fixed to a tripod 40 via an attachment 41, and the attachment 41 is configured to be able to freely rotate in the vertical and horizontal directions. Therefore, each camera can also be rotated three-dimensionally while being fixed to the tripod 40.
- the installation state of the main camera 100 is adjusted in advance by the user 100a so that a desired composition including the subject 20 can be obtained. In this embodiment, this installation state is referred to as “standard state” as appropriate.
- the network 30 is an example of a "network" according to the present invention including a mobile communication network and a wired communication network.
- the network 30 includes various lines such as an ADSL line, optical fiber line, or telephone line, and It includes base stations and access points corresponding to them.
- FIG. 2 is a block diagram of the main camera 100.
- the internal configurations of the main camera 100 and the sub camera 200 are the same, and therefore, the configuration of the main camera 100 will be described as a representative in FIG.
- the reference numerals of the parts corresponding to the sub camera 200 are shown in parentheses in FIG.
- the main camera 100 includes a control unit 110, a sound collection unit 120, an imaging unit 130, a camera rotation unit 140, a lens driving unit 150, a communication unit 160, a position information acquisition unit 170, a recording unit 180, And an input unit 190.
- the control unit 110 faces a CPU (Central Processing Unit) 111, a ROM 112, and a RAM (Random Access Memory) 13.
- CPU Central Processing Unit
- ROM Read Only Memory
- RAM Random Access Memory
- CPUl l l is a control unit that controls the operation of the main camera 100.
- the ROM 111 is a non-volatile memory, and stores a unique ID number assigned in advance to the main camera 100 and a video shooting program to be described later that is executed by the CPU 11.
- the CPUll is configured to function as an example of each of the “first control unit”, “control information generation unit”, and “authentication unit” according to the present invention by executing the video shooting program. ing.
- the ROM 212 in the sub camera 200 also stores an ID number and a video shooting program in the same manner as the ROM 112, and the CPU 211 executes the “second” according to the present invention by executing the program.
- Each of the “control means” and the “authentication means” is configured to function as an example.
- the RAMI 13 is a volatile memory, and the CPU ll executes a video shooting program. It is configured to function as a buffer for temporarily storing various data generated in the process.
- the sound collection unit 120 is used to acquire sound around the main camera 100, and a microphone (not shown) and a sound signal acquired by the microphone are converted into sound information of a predetermined format. It is configured to function as an example of the “voice information acquisition unit” according to the present invention, with the help of a voice conversion unit (not shown).
- the imaging unit 130 has a CCD (Charge Coupled Diode) (not shown) that photoelectrically converts an image formed by a camera lens (not shown) for each pixel, and is formed by being condensed by the camera lens.
- CCD Charge Coupled Diode
- the imaging unit 230 in the sub camera 200 is an example of the “second imaging unit” according to the present invention.
- the camera rotation unit 140 is a drive mechanism including a motor (not shown) for panning and tilting the main camera 100.
- the camera rotation unit 140 is configured to be able to three-dimensionally rotate the attachment 41 of the tripod 40 according to an instruction from the CPU 111 using the rotation angle and the rotation speed as parameters.
- the lens driving unit 150 is a mechanism that drives a lens to control focus and zoom.
- the lens driving unit 150 is configured to be able to drive the lens according to an instruction from the CPU 111 with the zoom speed and zoom distance as parameters.
- the communication unit 160 is connected to the network 30 via an antenna (not shown), and is configured to be capable of transmitting and receiving data communication with the sub camera 200. It is an example of “communication means”.
- the communication unit 260 in the sub camera 200 is configured to function as an example of the “second communication unit” according to the present invention.
- the position information acquisition unit 170 includes a distance measurement unit 171, a position detection unit 172, and an orientation detection unit 173, and is configured to be able to acquire an example of "first position information” according to the present invention. It is an example of the “first acquisition means” according to the invention.
- the position information acquisition unit 270 in the sub camera functions as an example of the “second acquisition unit” according to the present invention.
- the distance measuring unit 171 includes an infrared sensor (not shown) and the like, The distance from the subject 20 can be measured.
- the position detection unit 172 is a known position detection system that uses GPS or a quasi-sky satellite, and is configured to be able to specify the current position of the main camera 100.
- the direction detection unit 173 is configured to be able to specify the absolute direction of the main camera 100 by using a force such as a geomagnetic sensor.
- the recording unit 180 is a recording medium for recording video and audio data, additional information, and the like.
- the additional information refers to information indicating, for example, the distance to the subject 20, the current position of the main camera 100, the orientation of the main camera, the zoom size, the pan angle (direction), and the tilt angle (direction).
- video data is, for example, data compressed by a data compression format such as MPEG2, MPEG4, or H.264
- audio data is data that conforms to a format such as linear PCM or AC-3, respectively. To be recorded.
- the input unit 190 is configured so that the user 100a can give various instructions to the CPU 111.
- the input unit 190 is a part of a touch panel device, an operation button, an operation dial, or an operation lever (knob) or It consists of the whole.
- main camera 100 and the sub camera 200 are provided with a display unit configured with, for example, a liquid crystal display so that the user 100a can appropriately check the video being captured, for example.
- a display unit configured with, for example, a liquid crystal display so that the user 100a can appropriately check the video being captured, for example.
- FIG. 3 is a flowchart relating to the overall operation of the video imaging system 10.
- step A10 when the main camera 100 and the sub camera 200 are powered on, mutual authentication is first performed (step A10).
- the CPU 111 and the CPU 211 exchange the ID numbers of the main camera 100 and the sub camera 200 stored in the ROMs 112 and 212 via the communication unit 160 and the communication unit 260, respectively.
- data is transmitted from the main camera 100 to the sub camera 200, or from the sub camera 200 to the main camera 100, data each having its own ID number is transmitted.
- CPUll and CPU211 each determine whether or not mutual authentication has been successfully completed (step Al1).
- step Al 1 If mutual authentication is not successful (step Al 1: YES), CPU 111 and CPU 211 repeat the authentication process, and if authentication is successful (step Al l: YES), CPU 111 and CPU 211 are the main camera.
- 100 and sub camera 200 are set to idling mode (step A12).
- the idling mode is a mode that waits for an instruction from the user 100a such as shooting, playback, or various settings.
- the sub camera 200 is controlled to perform an operation following the main camera 100 by setting the idling mode.
- the CPU 11 determines whether or not there is an operation input from the user 100a via the input unit 190 (step A13).
- the determination related to step A13 is constantly executed based on a fixed clock.
- an operation input is an instruction for starting a shooting mode for shooting a subject and recording the shot video, an instruction for starting a playback mode for playing back a previously shot video, or the main camera 100.
- step A13 If no operation input is detected (step A13: NO), CPUll continues the idling mode and if any operation input is detected (step A13: YES), It is determined whether or not the operation input is a shooting mode start instruction (step A14). When activation of the shooting mode is instructed (step A14: YES), the CPU 111 executes shooting processing and recording processing (step A15). This shooting process and recording process will be described later.
- step A14 if the operation input from the user 100a is not an instruction to start the shooting mode (step A14: NO), the CPUll then receives the operation input force from the user 100a as an instruction to stop the main camera 100. It is determined whether or not there is a certain force (step A16). If it is a stop instruction (step A16: YES), the CPU 11 turns off the main camera 100 and stops the main camera 100.
- CPUll determines whether it is another operation input (step A17).
- the other operation input described here means that the above-described playback mode or setting mode is started. Indicates a movement instruction.
- step A17: NO If these are not other operation inputs (step A17: NO), the CPU 111 returns the processing to step A13 again as a detection error, and if it is another operation input (step A17: YES) ), The CPU 111 performs control corresponding to other operation inputs (step A18).
- the CPU 111 determines whether or not the force corresponding to the other operation input has ended (step A19). When the control is not finished (step A19: NO), the CPU 111 continues the control and, when the control is finished, returns the process to step A13 again and controls the main camera 100 to the idling mode. .
- the control corresponding to the other operation input is the same as the control related to video reproduction or various settings in a normal video camera, and thus detailed description in this embodiment will be omitted.
- FIG. 4 is a flowchart of the photographing process.
- Note that such shooting processing is realized by the CPUs 111 and 211 executing the video shooting programs stored in the ROMs 112 and 212 (that is, an example of a computer program according to the present invention). Therefore, at the time when this imaging process is started, the CPU 111 has already transmitted a command signal for instructing the CPU 211 to start the imaging process via the communication unit 160, and based on this command signal.
- the CPU 211 reads the video shooting program stored in the ROM 212 and waits for the next instruction waiting state from the CPU 211.
- step B10 position information is acquired in each of the main camera 100 and the sub camera 200.
- the CPU 111 instructs the position information acquisition unit 170 to acquire position information regarding the main camera 100. Based on this instruction, the distance measurement unit 171, the position detection unit 172, and the direction detection unit 173 determine the distance between the main camera 100 and the subject 20, the current position of the main camera 100, and the shooting direction of the main camera 100, respectively. Three types of information to be represented are acquired and temporarily stored in the RAM 113. On the other hand, in parallel with giving the position information acquisition unit 170 an instruction to acquire position information regarding the main camera 100, the CPU 111 sends a command signal for requesting acquisition of position information in the sub camera 200 to the communication unit 160. To the sub camera 200.
- the CPU 111 first obtains temporary position information regarding the sub camera 200. Send the requested command signal.
- the CPU 211 instructs the position information acquisition unit 270 to acquire position information related to the sub camera 200 based on the command signal.
- the position detection unit 272 and the direction detection unit 273 acquire two types of information representing the current position of the sub camera 200 and the shooting direction of the sub camera 200, respectively, and are temporarily stored in the RAM 213.
- the acquired position information related to the sub camera 200 is transmitted to the main camera 100 via the communication unit 260.
- the transmitted position information regarding the sub camera 200 is temporarily stored in the RAMI 13 of the main camera 100 as temporary position information regarding the sub camera 200. In this state, the process related to step B10 ends.
- the CPU 111 sets the sub camera 200 to a state corresponding to the standard state of the main camera 100, that is, the standard state of the sub camera 200 (step Bl).
- the CPU 111 compares the position information of the main camera 100 stored in the R AMI 13 with the temporary position information. Then, it is determined whether or not the sub-camera 200 is accurately facing the subject 20.
- the CPU 111 When the sub camera 200 is not directed toward the subject 20, the CPU 111 newly generates a command signal for panning and tilting the sub camera 200 so as to face the subject 20, and the communication unit 160 To the sub camera 200. In the sub camera 200 that has received this command signal, the CPU 211 controls the camera rotation unit 240 based on the command signal, and pans or tilts the sub camera 200 as instructed.
- the CPU 211 in the sub camera 200 controls the position information acquisition unit 270 to acquire the position information of the sub camera 200 again.
- the subject 20 and sub The distance information with respect to the camera 200 is measured and transmitted to the main camera 100 via the communication unit 260 as the true position information of the sub camera 200.
- the CPU 111 when the sub camera 200 faces the direction of the subject 20, the CPU 111 generates a command signal that requests only acquisition of information indicating the distance between the subject 20 and the sub camera 200, and sets the communication unit 160. To the sub camera 200. In response to this command signal, the sub camera 200 acquires distance information in the same manner as described above, and transmits it to the main camera 100 as information for complementing the temporary position information.
- the CPU 111 When information indicating the distance between the sub camera 200 and the subject 20 is acquired by any of the above, the CPU 111 further determines the distance between the subject 20 and the main camera 100 and the subject 20 and the sub from the distance information. A difference in distance from the camera 200 (hereinafter referred to as “ ⁇ d” as appropriate) is detected. The CPU 111 generates a command signal for zoom compensation on the sub camera 200 side from the detected Ad so as to be equivalent to the main camera 100 in the standard state of the image composition in the sub camera 200. Send to sub camera 200. The value of Ad is temporarily stored in the RAM 113.
- the subject 20 is captured by varying the zoom distance and further focusing based on the command signal related to the lens driving unit 250 force.
- the standard state in the sub camera 200 is set.
- a part of the processing related to step B11 is necessarily required when the composition on the sub camera 200 side is set in advance so as to capture the subject 20!
- information corresponding to true position information may be transmitted from the sub camera 200, and only zoom compensation in the sub camera 200 may be performed. Furthermore, such zoom compensation does not always have to be done! /.
- the CPU 111 of the main camera 100 based on the positional information of both stored in the RAMI 13, (Hereinafter referred to as “ ⁇ 0” as appropriate) is acquired (step ⁇ 12). Further, the acquired value of ⁇ is temporarily stored in the RAMI 13.
- FIG. 5 is a schematic diagram showing the positional relationship between the subject 20, the main camera 100, and the sub camera 200. is there.
- the distance between the main camera 100 and the subject 20 and the distance between the sub camera 200 and the subject 20 are represented as “(1 &)” and “(1 (31))”, respectively. . Therefore, Ad is defined as the absolute value of “d (main) —d (sub)”.
- the distance between each camera and the subject 20 is expressed with reference to the lens end surface of each camera. As long as the distance is defined based on a common standard between the camera 100 and the sub camera 200, the definition of the distance may be freely determined.
- ⁇ is the smaller of the angles formed by the line segment connecting the subject 20 and the main camera 100 and the line segment connecting the subject 20 and the sub camera 200. Refers to an angle.
- the CPU 113 determines whether the force is within the range of ⁇ 0 force “120 ° ⁇ 0 ⁇ 18 ⁇ °” (hereinafter referred to as “first range” as appropriate) (step ⁇ 13). If it is within the first range (step B13: YES), the CPUll controls the imaging unit 130 to perform imaging in the first imaging mode (step B14). The first shooting mode will be described later.
- CPUlll determines whether or not the power of the video shooting in the first shooting mode is finished (step B15). If shooting has not ended (step B15: NO), CPUlll continues shooting in the first shooting mode, and when shooting ends (step B15: YES), the shooting process ends. Note that the end of shooting refers to, for example, a case where the user 100a gives an instruction to stop via the input unit 190 or a preset shooting time elapses, and the modes may vary! ,.
- step B16 It is determined whether or not ⁇ is within a range of “45 ° ⁇ ⁇ 120 °” (hereinafter referred to as “second range” as appropriate) (step B16). If it is within the second range (step B16: YES), the CPUll controls the imaging unit 130 to perform imaging in the second imaging mode (step B17). The second shooting mode will be described later.
- CPUlll determines whether or not the power of the video shooting in the second shooting mode has ended (step B18). If shooting is not finished (step B18: NO), CPUlll The shooting in the shadow mode is continued, and when the shooting is finished (step B18: YES), the shooting process is finished.
- step ⁇ 19 It is determined whether it is within the range of 0 force “ ⁇ 0 ⁇ 45 °” (hereinafter referred to as “third range” as appropriate) (step ⁇ 19). If it is within the third range (step B19: YES), the CPU 111 controls the imaging unit 130 to perform imaging in the third imaging mode (step B20). The third shooting mode will be described later.
- CPU 111 determines whether or not the power of the video shooting in the third shooting mode has ended (step B21). If shooting has not ended (step B21: NO), the CPU 111 continues shooting in the third shooting mode, and when shooting ends (step B21: YES), the shooting process ends.
- the first range corresponds to the case where the main camera 100 and the sub camera 200 are relatively distant from each other in terms of angle. Examples of situations include shooting of track competitions at sporting events.
- the first shooting mode is performed, for example, by repeating the shooting routines (1) to (12) below.
- the "standard state” is the above-described standard state.
- the main camera 100 also pans this standard state force by the action of the camera rotation unit 140.
- the CPU 111 transmits a command signal to the sub camera 200 via the communication unit 160, and the sub camera 200 pans in phase in response to the command signal.
- in-phase means, for example, that the main camera 100 and the sub camera 200 are close in angle.
- the directions represented by “left” or “right” are equal to each other.
- panning in-phase is a concept that refers to panning in a direction that captures the same subject, not an absolute panning direction.
- the CPU 111 of the main camera 100 moves the sub camera 200 left and right each time based on the relative positional relationship between the main camera 100 and the sub camera 200. It calculates how much to pan in which direction, generates a command signal based on the calculation result, and transmits it to the sub camera 200.
- the main camera 100 and the sub camera 200 each return to the standard state.
- the CPU 111 controls the camera rotation unit 140
- the command signal is generated by the CPU 111 of the main camera 100 and transmitted via the communication unit 160.
- the CPU 211 controls the camera rotation unit 240 to return to the standard state described above. Since the return to the standard state is basically the same in the following description, the description is omitted as appropriate.
- the main camera 100 is tilted in (6). Also in this case, the tilt is realized by the CPU 111 controlling the camera rotation unit 140. Further, the sub camera 200 is tilted in phase with the main camera 100 by the action of the camera rotation unit 240 in accordance with the transmitted command signal.
- tilt in phase is different from panning, and the direction represented by “up” or “down” is independent of the angle between the main camera 100 and the sub-power camera 200. Tilt to be equal to each other.
- tilt in reverse phase refers to tilting so that the directions represented by “up” and “down” are different from each other.
- the main camera 100 performs zoom photography of the subject 20.
- the CPU 111 controls the lens driving unit 150 to adjust the zoom magnification and focus.
- the CPU 111 generates a command signal for causing the sub camera 200 to perform zoom shooting in the same phase and transmits the command signal to the sub camera 200 via the communication unit 160, and the CPU 211 of the sub power camera 200 responds to the command signal.
- the lens driving unit 250 is controlled to execute in-phase zoom shooting.
- in-phase zoom photography means that the zoom directions represented by “telephoto (zoom in)” and “wide angle (zoom out)” are mutually different between the main camera 100 and the sub camera 200. It is a concept that points to equality. That is, when the main camera 100 performs telephoto shooting of the subject 20, the same telephoto shooting is used, and when the main camera 100 performs wide-angle shooting, the same wide-angle shooting is performed.
- the main camera 100 and the sub camera 200 After returning to the standard state again in (10), in (11), the main camera 100 and the sub camera 200 perform zoom photography of the subject 20 in mutually opposite phases.
- “photographing in reverse phase” means that, for example, if the main camera 100 captures a subject on the telephoto side, the sub camera 200 captures a subject on the wide-angle side.
- the second range corresponds to the case where the main camera 100 and the sub camera 200 are in a standard positional relationship in terms of angle, and does not have a particularly characteristic situation. For example, the following (1) to (1) This is done by repeating the shooting routine up to (14).
- Standard state (1) Standard state ⁇ (2) Left and right pan (In-phase) ⁇ (3) Standard state ⁇ (4) Left and right pan (Reverse phase) ⁇ (5) Standard state ⁇ (6) Zoom (In-phase) ⁇ (7) Zoom (reverse phase) ⁇ (8) Standard condition ⁇ (9) Up and down Tilt (in-phase) ⁇ (10) Vertical tilt (reverse phase) ⁇ (11) Zoom (in-phase) ⁇ (12) Standard state ⁇ (13) Zoom (reverse phase) ⁇ (14) Standard state.
- pan, tilt, zoom, and the like are the same as those in the first shooting pattern described above, and thus the description thereof is omitted.
- shooting in which pan and tilt and zoom operations such as zoom in and out are mixed on average is executed.
- the third range corresponds to the case where the main camera 100 and the sub camera 200 are relatively close to each other in terms of angle. Examples of situations include indoor presentations such as pianos and plays. Is mentioned.
- the third shooting mode is performed, for example, by repeating the shooting routines (1) to (12) below.
- the individual shooting states are the same as those in the first shooting pattern described above, and thus the description thereof is omitted.
- shooting is performed mainly focusing on zoom operations such as zooming in and out.
- the CPU 111 and the CPU 211 may control each part of the main camera 100 and the sub camera 200 so that such shooting is performed.
- video grammar refers to a universal law that exists between video material, video effects, and concepts to be expressed. For example, if the concept to be expressed as video material has been decided, the video effect that is required to some extent is specified. Alternatively, if the video material and video effects are determined, the intention of the photographer represented by the video can be conveyed to the viewer with a certain degree of accuracy. For general users who are not accustomed to shooting video, Since there are many cases where there is no known image grammar, it is possible to improve the quality of the image easily when shooting based on such image grammar is performed.
- shooting conforming to the video grammar means that, for example, in situations where there is a relatively large amount of movement of the subject such as an athletic meet, the speed in zoom operations such as panning and tilting, zooming in and out, etc. can be increased or cut off. This refers to shooting lively images by switching frequently. Also, in situations where there is relatively little movement of the subject, such as music recitals, the panning, tilting, and zooming speeds are slowed down, and the subject's up-video is shot with various angular forces. For example, taking high-quality images.
- Such a shooting algorithm that complies with the video grammar may be reflected in the video to be shot by being adopted in a video shooting program stored in the ROM 112 and the ROM 212, for example.
- An imaging routine that pans at least one camera force, for example, 180 degrees or more, may be provided as appropriate.
- a shooting routine at a sports day, a competition, a concert, or a presentation! Look at the subject (competitor, performer, etc.) at the bleachers! It is also possible to take pictures of parents' expressions easily. In this case, it is also possible to add a sense of reality, drama, V, and other elements to the video.
- FIG. 6 is a flowchart of the recording process.
- the recording process is performed in parallel with the photographing process.
- 6 is a recording process executed in the main camera 100, and the processing on the sub camera 200 side is the same as that of the main camera 100, and thus the description thereof is omitted.
- the CPU 111 determines whether or not one video frame (hereinafter, “one frame”) has elapsed based on a clock signal or the like (step C10).
- the “video frame” is a minimum unit of video, and corresponds to “one frame” in a video, for example.
- step C10 NO
- the CPU 111 waits until one frame has passed, and if one frame has passed (step CIO: YES), the video data processing (step C 11), audio data processing (step C 12), and additional information processing (step C 13) are executed in parallel.
- FIG. 7 is a flowchart of video data processing
- FIG. 8 is a flowchart of audio data processing
- FIG. 9 is a flowchart of additional information processing.
- step Clll video data sampling and digital input are first performed (step Clll).
- the digitized video data is encoded and temporarily stored in RAMI 13 (step C 112).
- the video data is stored in the RAMI 13, the video data processing ends.
- step C121 audio data sampling and digital input are first performed (step C121).
- the digitized audio data is encoded and temporarily stored in the RAMI 13 (step C122).
- step C122 When the audio data is stored in the RAMI 13, the audio data processing ends.
- step C131 distance information, azimuth information, position information, zoom distance information, pan angle information, tilt angle information, and speed information in pan, tilt, and zoom, etc. Obtained (step C131).
- the acquired attached calorie information is stored in the RAM 113 (step C132).
- step C132 When the additional information is stored in the RAMI 13, the additional information processing ends.
- the video data and audio data stored in the RAMI 13 are multiplexed (step C14) and stored in the RAMI 13 together with additional information.
- CPU 111 determines whether or not these data stored in RAM 113 are stored in 1 GOP (step C15).
- 1GOP is a video unit composed of video data, audio data and additional information of about 1 to 15 frames.
- step C15 NO
- the CPU 111 returns the process to step C10, and executes the processing of video data, audio data, and additional information of the next video frame.
- step C15 YES
- the CPU 111 controls the recording unit 180 to record these data (step C16).
- FIG. 10 is a schematic diagram of a recording format
- FIG. 11 is a schematic diagram of a header and additional information in the recording format.
- a video stream composed of continuous still images has a configuration in which data is sequentially arranged in GOP units.
- One GOP is header, video Z audio data
- FIG. 11 (a) shows the state of the header.
- the header includes the number of frames included in the GOP, the GOP number, the address on the recording medium of the video Z audio data, the video
- It consists of the size of the Z audio data, the address of the additional information on the recording medium, and the size of the additional information.
- Fig. 11 (b) shows the state of the additional information.
- Additional information includes information such as distance, direction, position, zoom size, pan direction and angle, and tilt direction and angle.
- the CPU 111 determines whether there is a video to be recorded (step C17). If there is still an image to be recorded (step C17: NO), the CPU 111 returns the process to step C10 again, and processes the video data, audio data, and additional information relating to the next video frame. If there is no more video to record (step C17: YES), the recording process ends.
- the main camera 100 and the sub camera 200 are interlocked with each other, and the subject 20 is effectively captured based on the mutual positional relationship. Is possible. Therefore, it is possible to shoot extremely high quality images.
- the sub camera 200 is configured to operate by transmitting a command signal for controlling the sub camera 200 in the main camera 100 side force. How the CPU 211 of the camera 200 should move according to the position information transmitted from the main camera 100, or according to the pan / tilt operation amount or zoom operation amount of the main camera 100, etc. You may decide.
- the current position, the shooting direction, and the force configured to be able to acquire the distance to the subject. For example, in a room or the like, the position search signal such as GPS does not reach the current position. In some cases, the position cannot be specified. Even in such a case, if the consensus of photographing the subject 20 is obtained in advance between the main camera 100 and the sub camera 200, no problem will arise!
- each means for obtaining the position information is not necessarily required!
- the sub camera 200 can operate based on a command signal from the main camera 100 or a signal conveying the operation of the main camera 100, etc.
- the effects of the present invention can be enjoyed unchanged.
- both forces of the main camera 100 and the sub camera 200 are described to operate in the full mode.
- the main camera 100 is actively operated by the user 100a, and the video is displayed. It may be taken.
- the sub camera 200 can operate following the operation of the main camera 100.
- FIG. 12 is a schematic diagram of the follow-up control according to the modified example of the present invention.
- the same parts as those in the above-described embodiment are denoted by the same reference numerals and the description thereof is omitted.
- the sub camera 200 includes a display unit 300, and the composition of the video currently being shot is displayed on the display screen.
- the CPU 211 reads “Left” on the display screen based on a command signal from the main camera 100 or based on a control signal that conveys the operation of the main camera 100.
- the display unit 300 is controlled to display the message, “Pan 30 °! /,”.
- the tracking operation equivalent to the embodiment is easy. Can be realized.
- the photographing device is used in a hand-held state rather than being fixed to a tripod. In such a situation, it is difficult to pan or tilt the sub camera 200 even if the camera rotation unit 240 is controlled. Therefore, this modification is very effective.
- a portable terminal such as a mobile phone is equipped with a video camera system, it is also very effective because it is difficult to fix it to a tripod.
- the present invention is not limited to the above-described embodiments, and the entire specification can be modified as appropriate without departing from the gist or philosophy of the invention that can be read.
- the system, the video imaging device, and the video imaging method are also included in the technical scope of the present invention.
- the video shooting system, the video shooting device, and the video shooting method according to the present invention can be used for, for example, a video shooting system, a video shooting device, and a video shooting method capable of obtaining a high-quality video. .
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Abstract
Description
Claims
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| Application Number | Priority Date | Filing Date | Title |
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| JP2004263809 | 2004-09-10 | ||
| JP2004-263809 | 2004-09-10 |
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| WO2006028247A1 true WO2006028247A1 (ja) | 2006-03-16 |
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| PCT/JP2005/016727 Ceased WO2006028247A1 (ja) | 2004-09-10 | 2005-09-12 | 映像撮影システム、映像撮影装置、及び映像撮影方法 |
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Cited By (5)
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| JP2010166218A (ja) * | 2009-01-14 | 2010-07-29 | Tokyo Broadcasting System Holdings Inc | カメラシステム及びその制御方法 |
| JP2011211387A (ja) * | 2010-03-29 | 2011-10-20 | Hitachi Computer Peripherals Co Ltd | 撮像装置および監視装置 |
| JP2013520927A (ja) * | 2010-04-01 | 2013-06-06 | キャメロン ジェームズ | フレームリンクされた2d/3dカメラシステム |
| WO2020188957A1 (ja) * | 2019-03-20 | 2020-09-24 | ソニー株式会社 | リモートコントロール装置と撮像制御装置およびその方法 |
| CN115336247A (zh) * | 2020-06-10 | 2022-11-11 | Jvc建伍株式会社 | 影像处理装置以及影像处理系统 |
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