JP4810485B2 - Image processing apparatus, image processing method, and computer program - Google Patents

Description

  The present invention relates to an image processing apparatus and the like for reproducing moving image data having different shooting frame rates and reproduction frame rates.

  Some conventional image processing apparatuses such as digital cameras have a function of capturing and playing back an interval moving image.

  An interval movie is similar to a movie shot by a technique called so-called low-speed shooting or time-lapse shooting. A movie shot with an extremely slow shooting frame rate is set to a normal playback frame rate. It is recorded as data. For example, the playback frame rate of a movie shot at a shooting frame rate of 1 frame per second is set to 30 frames per second and recorded as movie data. When this movie data is played back, the movie is played back at 30 times the speed at the time of shooting. It is said that.

  When the interval video shot in this way is played back, it becomes possible to observe the changes in the slow-moving shooting target, such as the sun and stars moving around the sky and the flowering of the flowers, with a reduced time. .

  Here, Patent Document 1 discloses a technique related to reproduction of moving image data having a shooting frame rate and a reproduction frame rate different from each other such as an interval moving image.

JP 2002-320203 A

  However, the technology of Patent Document 1 is a technology for setting an appropriate playback frame rate when playing back moving image data. When playing back an interval movie at the frame rate at the time of shooting, for example, a slow playback function is used. , The user had to adjust the settings. In this case, since it is necessary to adjust the frame rate of the slow reproduction to be the same as the frame rate at the time of shooting, it is a troublesome work for the user.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an image processing apparatus that improves operability when an interval moving image is reproduced at a frame rate at the time of shooting.

The image processing apparatus of the present invention, when the frame rate at the time of photographing of the moving image data with a predetermined frame rate stipulated in the dynamic image data are different, the moving image data, or playback at the predetermined frame rate or An image processing apparatus having selection means for selecting whether to reproduce at the frame rate at the time of shooting, the image processing apparatus comprising: changing means capable of changing a frame rate for slow reproduction of the moving image data; If the predetermined frame rate defined in the above and the frame rate at the time of shooting of the moving image data are different, the lower limit value of the frame rate at the time of slow playback that can be changed by the changing means is set as the frame rate at the time of shooting. characterized in that it.
Further, the image processing method of the present invention is configured to reproduce the moving image data at the predetermined frame rate when a predetermined frame rate defined for the moving image data is different from a frame rate at the time of shooting the moving image data. Or an image processing method of an image processing apparatus having a selection means that enables selection of whether to reproduce at the frame rate at the time of shooting, and includes a change step that can change a frame rate when the moving image data is reproduced slowly. If the predetermined frame rate defined for the moving image data is different from the frame rate at the time of shooting the moving image data, a lower limit value of the frame rate at the time of slow playback that can be changed in the changing step is set as the shooting It is characterized by the current frame rate .
Further, the computer program of the present invention reproduces the moving image data at the predetermined frame rate when the predetermined frame rate defined for the moving image data is different from the frame rate at the time of shooting the moving image data. A computer program for causing a computer having a selection unit that can select whether to reproduce at the frame rate at the time of shooting to perform a changing step capable of changing a frame rate when the moving image data is slowly reproduced, When the predetermined frame rate defined for the moving image data is different from the frame rate at the time of shooting the moving image data, a lower limit value of the frame rate at the time of the slow reproduction that can be changed at the changing step is set at the time of shooting. It is characterized by a frame rate .

  In the present invention, when reproducing moving image data in which the predetermined frame rate defined in the image data and the frame rate at the time of shooting are reproduced, it is selected whether to reproduce at the predetermined frame rate or the frame rate at the time of shooting. It was possible. Thereby, the operativity at the time of reproducing | regenerating an interval moving image with the frame rate at the time of imaging | photography can be improved.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings. The embodiment described below is an example as means for realizing the present invention, and should be appropriately modified or changed according to the configuration and various conditions of the apparatus to which the present invention is applied. It is not limited to the embodiment.

(First embodiment)
<Description of the device>
FIG. 1 is a block diagram showing the configuration of an image processing apparatus to which the present invention can be applied. In FIG. 1, reference numeral 100 denotes an image processing apparatus represented by a digital camera or the like.

  In the image processing apparatus 100, 10 is a photographing lens, 12 is a shutter having a diaphragm function, 14 is an image sensor that converts an optical image into an electrical signal, and 16 is an A / D that converts an analog signal output of the image sensor 14 into a digital signal. It is a conversion unit.

  A timing generator 18 supplies a clock signal and a control signal to the image sensor 14, the A / D converter 16, and the D / A converter 26. The timing generator 18 is controlled by the memory controller 22 and the system controller 50.

  An image processing unit 20 performs predetermined pixel interpolation processing and color conversion processing on the image data provided from the A / D conversion unit 16 or the image data provided from the memory control unit 22. The image processing unit 20 also performs TTL (through-the-lens) AF (autofocus) processing, AE (automatic exposure) processing, and EF (strobe pre-flash) based on image data captured by the image sensor 14. ) Calculate data for processing. The image processing unit 20 provides data obtained by the calculation to the system control unit 50.

  A system control unit 50 controls the exposure control unit 40, the distance measurement control unit 42, and the strobe 48 based on data provided from the image processing unit 20, and performs TTL AF processing, AE processing, and EF processing. Realize. The image processing unit 20 performs predetermined calculation processing using image data captured by the image sensor 14 and also performs TTL AWB (auto white balance) processing based on the obtained calculation result.

  A memory control unit 22 controls the A / D conversion unit 16, the timing generation unit 18, the image processing unit 20, the image display memory 24, the D / A conversion unit 26, the memory 30, and the compression / decompression unit 32.

  The data output from the A / D converter 16 is sent to the image display memory 24 or the image processing unit 20 and the memory control unit 22 or directly through the memory control unit 22 without going through the image processing unit 20. It is written in the memory 30.

  Reference numeral 24 denotes an image display memory, 26 denotes a D / A conversion unit, 28 denotes an image display unit comprising a TFT / LCD, and the display image data written in the image display memory 24 is stored in the D / A conversion unit 26. Via the image display unit 28. An electronic viewfinder (EVF) function can be realized by sequentially displaying image data captured by the image sensor 14 using the image display unit 28. The image display unit 28 can arbitrarily turn on / off the display according to an instruction from the system control unit 50. When the display is turned off, the power consumption of the image processing apparatus 100 can be greatly reduced. Can do.

  Reference numeral 30 denotes a memory for storing captured still images and moving images, and has a sufficient storage capacity to store a predetermined number of still images and a predetermined time of moving images. As a result, in continuous shooting or panoramic shooting in which a plurality of still images are continuously shot, and in the case of moving image shooting, it is possible to write a large amount of images to the memory 30 at high speed. Become. The memory 30 can also be used as a work area for the system control unit 50.

  A compression / decompression unit 32 compresses and decompresses image data by, for example, adaptive discrete cosine transform (ADCT). The compression / decompression unit 32 reads an image stored in the memory 30, performs compression processing or decompression processing in, for example, JPEG or MPEG format, and writes the processed data to the memory 30.

  An exposure control unit 40 controls the shutter 12 having a diaphragm function, and also has a flash light control function in cooperation with the flash 48. Reference numeral 42 denotes a distance measurement control unit that controls focusing of the photographing lens 10, reference numeral 44 denotes a zoom control unit that controls zooming of the photographing lens 10, and reference numeral 46 denotes a barrier control unit that controls the operation of the protection unit 102 serving as a barrier. A strobe 48 has an AF auxiliary light projecting function and a strobe dimming function.

  The exposure control unit 40 and the distance measurement control unit 42 are controlled by the system control unit 50 using the TTL method. The system control unit 50 controls the exposure control unit 40 and the distance measurement control unit 42 using the calculation result calculated by the image processing unit 20 based on the image data captured by the image sensor 14.

  The system control unit 50 controls the entire image processing apparatus 100. A memory 52 stores constants, variables, programs, and the like for the operation of the system control unit 50.

  A display unit 54 outputs an operation state, a message, and the like using characters, images, sounds, and the like in accordance with execution of a program executed by the system control unit 50. The display unit 54 is configured by a combination of a liquid crystal display device such as an LCD or LED and a speaker such as a sound generating element, and is installed at a single or a plurality of locations near the operation unit of the image processing apparatus 100 so as to be easily visible. Yes.

  Among the display contents of the display unit 54, what is displayed on the LCD or the like includes, for example, operation mode display, single shot / continuous shooting display, self-timer display, compression rate display, recording pixel number display, recording number display, remaining number display, etc. There are a number of images that can be shot, a shutter speed display, and the like. In addition, aperture value display, exposure compensation display, strobe display, red-eye reduction display, macro shooting display, buzzer setting display, battery remaining amount display, error display, information display with multiple digits, recording media 200 and 210 There are attachment / detachment status display, communication I / F operation display, date / time display, and the like.

  Among the display contents of the display unit 54, what is displayed in the optical viewfinder 104 includes in-focus display, camera shake warning display, strobe charge display, and the like.

  Reference numeral 56 denotes an electrically erasable / recordable nonvolatile memory such as an EEPROM.

  Reference numerals 60, 62, 64, 66, and 70 are operation units for inputting various operation instructions of the system control unit 50, and include one or a plurality of switches, dials, touch panels, pointing by line-of-sight detection, voice recognition devices, and the like. Composed of a combination. Hereinafter, the operation unit will be described in detail.

  Reference numeral 60 denotes a mode dial switch, which can switch and set various function modes such as power-off, automatic shooting mode, shooting mode, panoramic shooting mode, playback mode, multi-screen playback / erase mode, and PC connection mode.

  Reference numeral 62 denotes a release switch SW1, which is turned ON while a release button 301 (described later) is being operated (half-pressed), and instructs the system control unit 50 to start operations such as AF processing, AE processing, AWB processing, and EF processing.

  A release switch SW2 64 is turned on when an operation of a release button 301 described later is completed, and instructs the system control unit 50 to start a series of operations related to shooting. Specifically, first, an exposure process for writing image data to the memory 30 is instructed via the A / D converter 16 and the memory controller 22 from the signal read from the image sensor 14. Next, the development processing using the calculation in the image processing unit 20 and the memory control unit 22 is instructed. Then, the image data is read from the memory 30, compressed by the compression / decompression unit 32, and a recording process for writing the image data to the recording medium 200 or 210 is instructed.

  Reference numeral 66 denotes an attitude detection unit composed of an inclination sensor, which detects the attitude of the apparatus, such as whether the image processing apparatus 100 is in the horizontal position or the vertical position. Reference numeral 68 denotes an audio capturing unit that captures audio data from the outside using a microphone (not shown) or the like.

  An operation unit 70 includes various buttons, a touch panel, and the like, and includes a menu button, a set button, a macro button, a multi-screen playback page break button, a strobe setting button, a single shooting / continuous shooting / self-timer switching button, and the like. The operation unit 70 also includes a menu movement + (plus) button, menu movement-(minus) button, reproduction image movement + (plus) button, reproduction image movement-(minus) button, shooting image quality selection button, exposure correction button, date. / Includes time setting buttons.

  A power control unit 80 includes a power detection circuit (not shown), a DC-DC converter, a switch circuit that switches a block to be energized, and the like. The power control unit 80 detects the presence / absence of connection of an external power source, the presence / absence of a battery, the type of battery, the remaining battery level, and controls the DC-DC converter based on the detection result and the instruction of the system control unit 50. Then, a necessary voltage is supplied to each part including the recording medium for a necessary period.

  Reference numerals 82 and 84 denote connectors, which are installed in the image processing apparatus 100 and the power supply unit 86, respectively. Reference numeral 86 denotes a power supply unit, which includes a primary battery such as an alkaline battery or a lithium battery, a secondary battery such as a NiCd battery, a NiMH battery, or a Li battery, an AC adapter, or an external battery.

  Reference numerals 90 and 94 denote interfaces with recording media such as memory cards and hard disks, and reference numerals 92 and 96 denote connectors for connecting to recording media such as memory cards and hard disks. A recording medium attachment / detachment detection unit 98 detects whether or not the recording medium 200 or 210 is attached to the connector 92 or 96.

  Although the present embodiment has been described as having two systems of interfaces and connectors for attaching the recording medium, the interfaces and connectors for attaching the recording medium may be configured with a single system or three or more systems. Moreover, it is good also as a structure provided with combining the interface and connector of a different standard. For example, as the interface and the connector, those compliant with a standard such as a PCMCIA card or a CF (Compact Flash (registered trademark)) card may be used. When the interfaces 90 and 94 and the connectors 92 and 96 are configured using a standard that conforms to a standard such as a PCMCIA card or a CF card, for example, a LAN card or a modem card can be connected. In addition to these, communication cards such as a USB card, an IEEE 1394 card, a P1284 card, a SCSI card, and a PHS can be connected in addition to a PCMCIA card and a CF card. If such an expansion card is connected, image data, audio data, and management information attached to these data can be transferred to and from other computers and peripheral devices such as printers.

  A protection unit 102 covers the imaging unit including the photographing lens 10 of the image processing apparatus 100 to prevent the imaging unit from being dirty or damaged.

  Reference numeral 104 denotes an optical viewfinder, which enables photographing without using the EVF function of the image display unit 28. In addition, a part of the display unit 54 is installed in the optical viewfinder 104. For example, an in-focus display, a camera shake warning display, a flash charge display, a shutter speed display, an aperture value display, an exposure correction display, etc. This is done within 104.

  A communication unit 110 provides various communication functions such as RS232C, USB, IEEE1394, P1284, SCSI, modem, LAN, and wireless communication. Reference numeral 112 denotes a connector or an antenna, which connects the image processing apparatus 100 to another device through the communication unit 110. In the case of wired communication, it is a connector, and in the case of wireless communication, it is an antenna.

  Reference numeral 200 denotes a recording medium such as a memory card or a hard disk. The recording medium 200 includes a recording unit 202 composed of a semiconductor memory, a magnetic disk, or the like, an interface 204 with the image processing apparatus 100, and a connector 206 that connects to the image processing apparatus 100.

  Reference numeral 210 denotes a recording medium such as a memory card or a hard disk. The recording medium 210 includes a recording unit 212 composed of a semiconductor memory, a magnetic disk, or the like, an interface 214 with the image processing apparatus 100, and a connector 216 that connects to the image processing apparatus 100.

<Description of operation member>
FIG. 2 is a diagram for explaining an operation member provided in the housing of the image processing apparatus 100. In FIG. 2, reference numeral 300 denotes a power button for turning on / off the power of the image processing apparatus. Reference numeral 60 denotes a mode dial switch for switching each function mode such as a shooting mode, a playback mode, a moving image shooting mode, and a still image shooting mode. Reference numeral 301 denotes a release button for operating the release switches SW1 (62) and SW2 (64).

  Reference numeral 28 denotes an image display unit that displays a captured image captured by the image sensor 14. A normal LCD is used for the image display unit 28, and when a still image or a moving image is reproduced, a display screen related to a reproduction operation is displayed on the screen.

  Reference numerals 302, 303, and 304 denote a set button, a menu button, and a cross button, respectively, which are used for various operations during moving image reproduction such as setting change of the image processing apparatus 100 and image feed in the reproduction mode.

<Description of display screen>
FIG. 3 shows an example of a display screen displayed on the image display unit 28 when reproducing a moving image. In FIG. 3, a moving image panel 401 for performing operations such as moving image reproduction, slow reproduction, and frame rate switching is displayed on the moving image reproduction screen 400.

  FIG. 4 is a diagram showing details of the moving image panel 401 displayed during moving image reproduction. The moving image panel 401 includes operation buttons, a counter, and a volume indicator. The user selects a process to be executed by operating the cross button 304 (FIG. 3) and selecting each button of the moving image panel 401, and executes the process selected by operating the set button 302 (FIG. 3). To be able to.

  In FIG. 4, reference numeral 410 denotes a playback button, which is a button for starting playback of a moving image. Note that the playback button 410 functions as a stop button during video playback. Reference numeral 411 denotes a slow playback button, which is a button for starting slow playback of a moving image. Reference numeral 412 denotes a top frame button, which is a button for moving the frame to be displayed to the top frame of the moving image. Reference numeral 413 denotes a frame return button, which is a button for moving the frame to be displayed to the previous frame. Reference numeral 414 denotes a frame advance button, which is a button for moving the frame to be displayed to the next frame. Reference numeral 415 denotes a final frame button, which is a button for moving the frame to be displayed to the final frame of the moving image.

  Reference numeral 416 denotes a frame rate switching button, which is used when switching the frame rate used for moving image reproduction, and displays whether the frame rate currently used for moving image reproduction is the reproduction frame rate or the shooting frame rate. It also has functions. Note that the frame rate switching button 416 shown in FIG. 4A indicates that the frame rate currently used for moving image playback is the playback frame rate. On the other hand, a frame rate switching button 419 shown in FIG. 4B indicates that the frame rate currently used for moving image playback is the shooting frame rate. It should be noted that the frame rate switching buttons 416 and 419 are selection means that can select whether to reproduce moving image data at a predetermined frame rate or a frame rate at the time of shooting, and selection of the selection means in the present invention. This corresponds to display means for displaying the result.

  Reference numeral 417 denotes a counter that displays an elapsed time from the first frame of the currently displayed frame. Reference numeral 418 denotes a volume indicator that displays the level of the currently set volume.

<Operation of the device>
Here, the operation of the image processing apparatus 100 according to the first embodiment will be described. First, FIG. 5 is a diagram illustrating a configuration of a moving image file used in the image processing apparatus 100. In the present embodiment, motion JPEG image data is used as moving image data. In addition to the image data, frame rate information is also recorded as information indicating how many frames of the moving image are configured per second. The frame rate information is recorded as attribute information for each moving image data, and is also used at the time of reproducing an interval moving image described later.

  As shown in FIG. 5, the moving image file used in the image processing apparatus 100 includes two files: an AVI file 500 and a thumbnail file (THM file) 501 associated with the AVI file 500.

  In the AVI file 500, moving image data, reproduction frame rate information when reproducing the moving image data (corresponding to a predetermined frame rate in the present invention), information such as audio data related to the moving image data, and the like are recorded. Has been.

  The THM file 501 includes thumbnail image data corresponding to the moving image data of the AVI file 500, shooting frame rate information at the time of shooting the moving image data (corresponding to the frame rate at the time of shooting referred to in the present invention), and related to the moving image data. Other information to be recorded is recorded. That is, the information on the shooting frame rate is recorded in a file different from the moving image data.

  FIG. 6 is a flowchart for explaining the operation at the time of moving image reproduction of the image processing apparatus 100 according to the present embodiment. Hereinafter, the operation at the time of moving image reproduction in the image processing apparatus 100 will be described with reference to FIG.

  When performing moving image reproduction, first, in step S100, the system control unit 50 displays the moving image panel 401.

  In step S <b> 101, the system control unit 50 determines whether an operation has been performed on the moving image panel 401 by using an operation member installed in the housing of the image processing apparatus 100 described with reference to FIG. 3. If no operation has been performed, the system control unit 50 returns the process to step S101 and waits for an operation on the moving image panel 401. If an operation has been performed on the moving image panel 401, the system control unit 50 proceeds to step S102.

  In step S <b> 102, the system control unit 50 determines whether the operation selected on the moving image panel 401 is the playback button 410. If the playback button 410 is selected, the process proceeds to step S103, and the system control unit 50 executes a moving image playback start process. The moving image reproduction start process in step S103 will be described later with reference to FIG. When the process of step S103 is completed, the process returns to step S101.

  If the play button 410 is not selected in step S102, the process proceeds to step S104, and the system control unit 50 determines whether the operation selected on the moving image panel 401 is the slow play button 411. If the slow playback button 411 is selected, the process proceeds to step S105, and the system control unit 50 executes a moving image slow playback start process. The moving image slow playback start process in step S105 will be described later with reference to FIG. When the process of step S105 is completed, the process returns to step S101.

  If the slow play button 411 is not selected in step S104, the process proceeds to step S106, and the system control unit 50 determines whether or not the operation selected on the moving picture panel 401 is a play stop button, that is, the play button 410 after playing the moving picture. It is determined whether or not is operated. If the reproduction stop button is selected, the process proceeds to step S107, and the system control unit 50 stops the reproduction of the moving image, and then returns the process to step S101.

  If the reproduction stop button is not selected in step S106, the process proceeds to step S108, and the system control unit 50 determines whether or not the moving image reproduction end is instructed by the operation member. If the video playback ends, the system control unit 50 ends the video playback. If the end of moving image reproduction is not selected in step S108, the system control unit 50 returns the process to step S101 and waits for an operation on the moving image panel 401.

  Here, the moving image reproduction start process in step S103 will be described with reference to FIG. 7, FIG. 9, and FIG. FIG. 7 is a flowchart for explaining the operation of the moving image reproduction start process in the image processing apparatus 100 of the present embodiment. FIG. 9 and FIG. 10 are examples of display screens displayed during moving image reproduction in the image processing apparatus 100 of the present embodiment.

  When the moving image reproduction start process is started, first, in step S200, the system control unit 50 determines whether or not the moving image file to be reproduced is an interval moving image. If the moving image file to be reproduced is an interval moving image, the process proceeds to step S201, and if not, the process proceeds to step S203.

  In step S201, the system control unit 50 determines the setting of the frame rate used for moving image reproduction. If the shooting frame rate is specified in the frame rate setting used for moving image reproduction (at this time, the frame rate switching button is displayed to indicate that the shooting frame rate is specified, as indicated by 600 in FIG. ), The process proceeds to step S202. Otherwise, the process proceeds to step S203. The setting of the frame rate determined in step S201 can be arbitrarily selected by the user operating the frame rate switching button 416 or 419. In this case, the user operates the playback button 410 after operating the frame rate switching button 416 or 419. Further, after playback, the frame rate may be switched by operating the frame rate switching button 416 or 419 during playback.

  In step S202, the system control unit 50 sets a frame rate used for moving image reproduction in accordance with the shooting frame rate information recorded in the THM file 501 corresponding to the moving image file, starts moving image reproduction, and starts moving image reproduction. The process ends.

  On the other hand, if it is determined in step S200 that the moving image file to be reproduced is not an interval moving image, and if it is determined in step S201 that the shooting frame rate is not specified in the frame rate setting used for moving image reproduction, the process proceeds to step 203. . In step S201, when the shooting frame rate is not designated, the frame rate switching button displays that the playback frame rate is designated as indicated by 601 in FIG.

  In step S203, the system control unit 50 sets the frame rate used for moving image reproduction according to the reproduction frame rate information recorded in the AVI file 500, starts moving image reproduction, and ends the moving image reproduction start process. .

  Next, the moving image slow playback start process will be described with reference to FIGS. 8, 11, and 12. FIG. FIG. 8 is a flowchart for explaining the operation of the moving image slow reproduction start process in the image processing apparatus 100 of the present embodiment. 11 and 12 are examples of display screens displayed during moving image slow reproduction in the image processing apparatus 100 of the present embodiment.

  When the moving image slow reproduction start process is started, first, in step S300, the system control unit 50 determines whether or not the moving image file to be slowly reproduced is an interval moving image. If the moving image file to be played slowly is an interval moving image, the process proceeds to step S301. Otherwise, the process proceeds to step S303.

  In step S301, the system control unit 50 determines whether or not the setting of the frame rate used for slow playback is the minimum frame rate. Here, the frame rate used for the slow playback can be set using the slow playback panel 700 shown in FIG. As the cross button 304 included in the operation member is operated to advance the indicator of the slow playback panel 700 in the + direction (right direction), the frame rate used for the slow playback increases, and the playback speed of the movie is the normal movie playback speed. Get closer to. Further, as the indicator is advanced in the-direction (left direction), the frame rate used for the slow playback becomes lower and the playback speed of the moving image becomes slower. Note that the slow playback panel 700 corresponds to a changing unit that can change the frame rate at the time of slow playback of moving image data in the present invention.

  If the setting of the frame rate used for the slow playback is set to the negative end (left end) as in the slow playback panel 702 shown in FIG. 12, that is, the lowest frame rate, the process proceeds to step S302.

  In step S302, the system control unit 50 sets a frame rate used for slow playback in accordance with the shooting frame rate information recorded in the THM file corresponding to the moving image file, starts slow playback, and starts slow playback start processing. Exit. That is, in the image processing apparatus 100 of the present embodiment, the lower limit value of the frame rate when the moving image is played back slowly (the frame rate when the negative end of the slow playback panel 700 is set) is recorded in the THM file. The shooting frame rate is set to be the same. At this time, the frame rate switching button is displayed to indicate that the shooting frame rate is designated as indicated by reference numeral 703 in FIG.

  On the other hand, if the setting of the frame rate used for slow playback is not set to the negative end as in the slow playback panel 700 shown in FIG. 11, or if the video file to be played is not an interval video, the process proceeds to step S303. In step S303, the system control unit 50 sets the frame rate used for slow playback according to the settings of the slow playback panel 700, starts slow playback, and ends the slow playback start processing.

  As described above, in the present embodiment, when playing back an interval movie, whether or not the frame rate used for playback is set to the shooting frame rate by using the frame rate switching button 416 or 419 or the slow playback panel 700. Can be selected. Thereby, it becomes possible to improve the operability when the interval moving image is reproduced at the frame rate at the time of shooting.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the image processing apparatus according to the second embodiment of the present invention, when a moving image is played back at the playback frame rate, audio playback of the moving image is not performed, and when a moving image is played back at the shooting frame rate, the moving image audio is played back. Playback was done. Note that the configuration of the image processing apparatus is the same as that of the first embodiment, and a description thereof will be omitted.

  The image processing apparatus according to the second embodiment configured as described above is suitable for use when, for example, recording audio such as a meeting is the main purpose. This is because it is desirable to shoot with an interval moving image having a smaller image data capacity per unit time than a normal moving image when audio recording such as a conference is the main purpose.

  For example, when a meeting is recorded as an interval moving image, sufficient image data is recorded in the recorded interval moving image as long as the progress of the meeting can be grasped. Then, using the image processing apparatus according to the present embodiment, the interval moving image is first reproduced at a reproduction frame rate at a speed faster than real time, and a necessary part in the moving image (for example, an important remark is thought to have occurred. (Scene) is searched arbitrarily. In this case, since playback is performed at the playback frame rate, playback of audio is not performed, and unnecessary fast-forwarded audio is not played back. Then, by switching to playback at the shooting frame rate at a necessary portion, playback of audio in real time is started.

  In the second embodiment of the present invention as described above, the interval video can be used like a voice recorder for convenience.

  As described above with reference to FIGS. 1 to 12, according to the present embodiment, the frame rate at the time of shooting the interval moving image can be selected by selecting the frame rate at the time of shooting as the frame rate used for reproduction. The operability during playback can be improved.

  In the above description, the format of the moving image data has been described as the motion JPEG format. However, the present invention is not limited to the format of the moving image data as long as the frame rate information is included in the moving image data. The present invention can also be applied to other types of moving image data.

  In order to realize the present invention, a storage medium in which a program code (computer program) of software that realizes the functions of the above-described embodiments may be used. In this case, the object of the present invention is achieved by supplying the storage medium to the system or apparatus, and the computer (or CPU or MPU) of the system or apparatus reads and executes the program code stored in the storage medium.

  In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the program code itself and the storage medium storing the program code constitute the present invention.

  As a storage medium for supplying the program code, for example, a flexible disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

  Needless to say, the OS (basic system or operating system) running on the computer performs part or all of the actual processing based on the instruction of the program code.

  Furthermore, the program code read from the storage medium may be written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. In this case, based on the instruction of the written program code, the CPU or the like provided in the function expansion board or function expansion unit may perform part or all of the actual processing.

It is a block diagram which shows the structure of the image processing apparatus which concerns on embodiment of this invention. It is a figure which shows the operation member provided in the image processing apparatus which concerns on embodiment of this invention. FIG. 6 is a diagram showing an example of a display screen displayed during moving image reproduction in the image processing apparatus according to the embodiment of the present invention. It is a figure which shows the example of the moving image panel displayed at the time of moving image reproduction | regeneration in the image processing apparatus which concerns on embodiment of this invention. It is a figure which shows the structure of the moving image file used in the image processing apparatus which concerns on embodiment of this invention. It is a flowchart for demonstrating the operation | movement at the time of the moving image reproduction of the image processing apparatus which concerns on embodiment of this invention. It is a flowchart for demonstrating the operation | movement of the moving image reproduction start process of the image processing apparatus which concerns on embodiment of this invention. It is a flowchart for demonstrating operation | movement of the moving image slow reproduction | regeneration start process of the image processing apparatus which concerns on embodiment of this invention. It is a figure which shows the example of the display screen displayed in a moving image reproduction start process. It is a figure which shows the example of the display screen displayed in a moving image reproduction start process. It is a figure which shows the example of the display screen displayed in a moving image slow reproduction | regeneration start process. It is a figure which shows the example of the display screen displayed in a moving image slow reproduction | regeneration start process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Shooting lens 12 Shutter 14 Image pick-up element 16 A / D conversion part 18 Timing generation part 20 Image processing part 22 Memory control part 24 Image display memory 26 D / A conversion part 28 Image display part 30 Memory 32 Compression / decompression part 40 Exposure control Unit 42 Distance measurement control unit 44 Zoom control unit 46 Barrier control unit 48 Strobe 50 System control unit 52 Memory 54 Display unit 56 Non-volatile memory 60 Mode dial 62 Release switch SW1
64 Release switch SW2
66 posture detection unit 68 audio capturing unit 70 operation unit 80 power control unit 82, 84, 92, 96 connector 86 power supply unit 90, 94 interface 98 recording medium attachment / detachment detection unit 100 image processing apparatus 102 protection unit 104 optical finder 110 communication unit 112 Connector (antenna)
200, 210 Recording medium 202, 212 Recording unit 204, 214 Interface 206, 216 Connector 300 Power button 301 Release button 302 Set button 303 Menu button 304 Cross button 401 Movie panel 401 ′ Movie panel 410 Play button 411 Slow playback button 412 First frame Button 413 Frame return button 414 Frame advance button 415 Last frame button 416, 419, 600, 601, 701, 703 Frame rate switching button 417 Counter 418 Volume indicator 500 AVI file 501 THM file 700, 702 Slow playback panel

Claims (7)

Played if a predetermined frame rate stipulated in moving image data and frame rate at the time of photographing of the moving image data is different, the video data, at a frame rate of at or the imaging play at the predetermined frame rate An image processing apparatus having selection means for enabling selection of whether or not
A changing unit capable of changing a frame rate when the moving image data is slowly played back;
When the predetermined frame rate defined for the moving image data is different from the frame rate at the time of shooting the moving image data, a lower limit value of the frame rate at the time of slow reproduction that can be changed by the changing unit is set at the time of shooting. An image processing apparatus having a frame rate .   2. The image processing apparatus according to claim 1, wherein when reproducing at the predetermined frame rate, the audio data included in the moving image data is not reproduced.   3. The image processing apparatus according to claim 1, wherein when reproducing at the frame rate at the time of shooting, the audio data included in the moving image data is reproduced. It said information on shooting frame rate, the image processing apparatus according to any one of claims 1 to 3, characterized in that it is recorded separately from the video data. The image processing apparatus according to any one of claims 1 to 4, characterized in that comprising a display means for displaying a selection result by said selection means. When the predetermined frame rate defined for the moving image data is different from the frame rate at the time of shooting the moving image data, the moving image data is played back at the predetermined frame rate or played back at the frame rate at the time of shooting. An image processing method of an image processing apparatus having a selection means for enabling selection,
A change step capable of changing a frame rate at the time of slow reproduction of the moving image data;
When the predetermined frame rate defined for the moving image data is different from the frame rate at the time of shooting the moving image data, a lower limit value of the frame rate at the time of the slow reproduction that can be changed at the changing step is set at the time of shooting. An image processing method characterized by setting a frame rate . When the predetermined frame rate defined for the moving image data is different from the frame rate at the time of shooting the moving image data, the moving image data is played back at the predetermined frame rate or played back at the frame rate at the time of shooting. In a computer having a selection means that makes it possible to select
A computer program for executing a change step capable of changing a frame rate when slow-playing the moving image data,
When the predetermined frame rate defined for the moving image data is different from the frame rate at the time of shooting the moving image data, a lower limit value of the frame rate at the time of the slow reproduction that can be changed at the changing step is set at the time of shooting. A computer program characterized by a frame rate .

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