JP2006319524A - Image sensing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image sensing device shortening a shooting time while being able to photograph an image for a synthesis having no sense of incompatibility at a low cost. <P>SOLUTION: A lens 1 condenses a light from a subject, and senses the image. An image sensing element 2 photoelectrically converts a subject image sensed by the lens 1, and generates an image signal. A recording medium 7 previously stores an image data to which a photographing-condition information is related. A synthesizer 10 synthesizes a first image data previously recorded on the recording medium 7 and a second image data based on the image signal output from the image sensing element 2, and generates a synthetic image data. A display device 14 displays the image based on the synthetic image data generated by the synthesizer 10. A CPU 8 sets photographing conditions on the basis of the photographing-condition information related to the first image data in the case of a photographing generating the second image data. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an imaging apparatus that facilitates setting of shooting conditions when shooting an image for synthesis.

  When multiple subjects cannot be arranged in one shooting site or there are subjects that are difficult to shoot, the images shot in multiple times are combined, or the images actually shot and CG (Computer) Graphic) Video may be created by combining video. When photographing such a composition subject, a technique called chroma key photography is often used. For example, a case will be described in which a video of a person taken separately is combined with a landscape video using a previously captured landscape video as a background.

  When shooting a person, a blue or green screen is placed on the background of the person. The captured image is later digitally processed by an editing machine or the like, and the screen portion is cut out to become an image of only a person. Then, the video of only the person and the background video are synthesized. When taking a picture of this person, the photographer looks into the camera's viewfinder and imagines that the above-mentioned part of the screen is combined with another image. It took a lot of time to set the shooting conditions for a lot of cameras.

  Conventionally, as a method for shortening the setting time of shooting conditions, there is a system that can efficiently set the camera so that the synthesized image does not feel strange after checking the configuration of the entire subject in advance. It is used. In order to check the overall composition of the subject in advance, the background image to be synthesized is projected on the screen behind the person to be photographed, the real-time image when the person is photographed with the camera, and a device other than the camera. The reproduced background video is synthesized and displayed by a video synthesizer or the like.

Further, as a method capable of easily setting many setting conditions of a camera, as shown in Patent Document 1, setting conditions at the time of shooting can be recorded, and previously recorded. A camera capable of easily resetting the setting conditions has been proposed.
JP-A-8-88790

  However, in order to be able to confirm the synthesis result in advance by projecting the background video on the screen or connecting multiple devices as in the prior art described above, a video playback device and video A large-scale system had to be prepared, such as a video synthesizing apparatus for synthesis. For this reason, the prior art is costly.

  Also, when shooting a background for composition and a person separately, even if you want to make the shooting conditions the same, it takes time and effort to memorize, set, and check the individual shooting conditions. It was. These shooting conditions change in real time, particularly when a person or background moves or when the position of the camera changes. The shooting conditions in this case are further complicated, and it is difficult to set the shooting conditions in real time even if the shooting conditions when the previous shooting was performed are stored.

  In the technique described in Patent Document 1, it is possible to easily reset the shooting conditions when shooting was performed previously. However, Patent Document 1 refers to shooting of moving images and composite images. Not. Furthermore, it is not possible to confirm whether or not the reset imaging conditions are optimal with an image synthesized in real time.

  The present invention has been made in view of the above-described problems, and it is an object of the present invention to provide an imaging apparatus capable of reducing the shooting time and shooting a composite image without a sense of incongruity at low cost. .

  The present invention has been made to solve the above-described problems, and the invention according to claim 1 includes an imaging optical system that focuses light from a subject and forms an image, and the imaging optical system. An image sensor that photoelectrically converts the formed subject image to generate an image signal, a storage unit that stores in advance image data associated with shooting condition information, and first image data stored in advance by the storage unit And a second image data based on the image signal output from the image sensor, a combining unit that generates combined image data, and an image based on the combined image data generated by the combining unit And a shooting condition setting means for setting shooting conditions based on the shooting condition information associated with the first image data when shooting to generate the second image data. Yes That is an image pickup apparatus.

  According to a second aspect of the present invention, in the imaging apparatus according to the first aspect, the imaging condition information is information on the imaging optical system and driving information on the imaging element.

  According to a third aspect of the present invention, in the imaging apparatus according to the first aspect, the photographing condition information is information used for image processing for correcting gradation characteristics and color reproducibility. .

  According to a fourth aspect of the present invention, in the imaging apparatus according to any one of the first to third aspects, the combining unit further combines the two pieces of image data stored in advance by the storage unit. The composite image data is generated.

  According to a fifth aspect of the present invention, in the imaging apparatus according to any one of the first to fourth aspects, the storage unit further stores image data input from an external device. .

  According to a sixth aspect of the present invention, in the imaging apparatus according to any one of the first to fifth aspects, the display unit further has a freeze function for displaying a still image based on the composite image data. It is characterized by that.

  According to a seventh aspect of the present invention, in the imaging apparatus according to any one of the first to sixth aspects, the synthesizing unit synthesizes the first image data and the second image data. The synthesis condition can be selected from a plurality of conditions.

  According to an eighth aspect of the present invention, in the imaging apparatus according to any one of the first to seventh aspects, the frame rate of the first image data stored in advance by the storage unit, and the imaging element. Frame rate conversion means for converting the frame rate so that the frame intervals of the two image data are equal on the time axis when the frame rates of the second image data based on the output image signal are different. Furthermore, it is characterized by having.

  According to a ninth aspect of the present invention, in the imaging device according to any one of the first to eighth aspects, the display unit further displays the photographing condition information together with an image based on the composite image data. It is characterized by that.

  According to the present invention, it is possible to shorten the photographing time and to obtain an effect that a compositing image without a sense of incongruity can be photographed at a low cost.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of an imaging apparatus according to an embodiment of the present invention. Light from the subject is collected by the lens 1 (imaging optical system) and enters the image sensor 2. At this time, a subject image is formed on the imaging surface of the imaging device 2 by the lens 1. The image sensor 2 has a configuration in which color filters of primary colors are arranged in each pixel of one image sensor so as to have, for example, a general Bayer arrangement shown in FIG. The image sensor 2 photoelectrically converts the incident imaging light and generates an image signal based on the subject image. This image signal is output in the order of reading pixels of the image sensor 2. The drive circuit 3 controls the drive timing of the image sensor 2 and the electronic shutter speed (charge accumulation time).

  The analog processing unit 4 performs analog processing such as processing for removing noise generated in the image sensor 2 and amplification processing for amplifying the signal to an appropriate level on the image signal generated by the image sensor 2. Do. The A / D conversion unit 5 converts the analog signal processed by the analog processing unit 4 into a digital signal (image data). The image processing unit 6 performs processing for aligning the black level with respect to the digital signal processed by the A / D conversion unit 5, processing for correcting the output characteristics of the image sensor 2 to be linear, and focusing of the lens 1. Processing for correcting unevenness or output unevenness in the screen of the image sensor 2 is performed.

  The recording medium 7 (storage means) is, for example, a card-type recording medium that is removable from the imaging device for recording image data. The image data output from the image processing unit 6 is converted into a predetermined image format, and is written (stored) in the recording medium 7 by a writing circuit (not shown) according to an instruction from the CPU 8. Further, the image data recorded on the recording medium 7 is read out by a reading circuit (not shown) according to an instruction from the CPU 8 and is output to the image conversion unit 9.

  External image data may be input to the recording medium 7. For example, an external device such as an editing device other than the imaging device shown in FIG. 1 may be connected to the recording medium 7 and the image data created by the editing device or the like may be recorded on the recording medium 7. Alternatively, the recording medium 7 may be a fixed type without being removable, and image data input from an external device such as an editing device via an interface (not shown) may be recorded on the recording medium 7. As will be described later, the recording medium 7 also records video information (shooting condition information) indicating various shooting conditions at the time of shooting.

  The CPU 8 (shooting condition setting means) controls and manages the basic operation and the like of the image pickup apparatus by controlling the components shown in FIG. The basic operation of the imaging apparatus includes operations such as recording of image data on the recording medium 7 and reproduction of image data from the recording medium 7. The image data processed by the image processing unit 6 is stored in the recording medium 7 and is output to the image conversion unit 9. The image conversion unit 9 performs an image conversion process for matching the frame rate of the image to the frame rate adapted to the display device 14 (display unit) for the input image data. In order to obtain a desired shooting effect, image conversion processing is performed when shooting is performed at a different frame rate or when an image shot by another imaging device is used in the imaging device.

  When the imaging apparatus performs a synthesis process for synthesizing image data (for example, background image data) recorded in advance on the recording medium 7 and image data (for example, person image data) generated in real time by imaging. The image conversion process is performed as follows. The image data processed by the image processing unit 6 and the image data read from the recording medium 7 and reproduced are input to the image conversion unit 9. When the frame rate of the image data read and reproduced from the recording medium 7 is different from the frame rate of the image data processed by the image processing unit 6, the image conversion unit 9 sets the frame interval between the two image data. The frame rate is converted so as to be equally spaced on the time axis. For example, the display frame rate of the display device 14 is 30 frames per second, the frame rate of the image data processed by the image processing unit 6 is 120 frames per second, and the frame rate of the image data reproduced from the recording medium 7 is every second. In the case of 5 frames, 3 frames are thinned out every 4 frames of the image data processed by the image processing unit 6, and 1 frame of the image data reproduced from the recording medium 7 is copied and repeated for 6 frames. As a result, the processing for adjusting the frame rate of both image data to 30 frames per second is performed.

  Two pieces of image data processed by the image conversion unit 9 are input to the synthesis unit 10 (synthesis unit). The synthesizing unit 10 performs a process of synthesizing those image data in real time and generating synthesized image data. In this composition processing, among the two image data described above, in the image data generated by photographing the subject (chroma key photographing) in which the blue (or green) screen is configured as a part of the subject, the blue color in the image data is displayed. A process of cutting out the part is performed, and the image from which the blue part is cut out is superimposed on another image, thereby generating a composite image. The brightness level of the blue or green screen image is recorded in advance as a threshold value, and if the brightness level exceeds the above threshold value in a certain continuous area in the image targeted for cropping processing, the area is A clipping process is performed. When the setting not to perform the above-described combining process is performed in the imaging apparatus, the combining unit 10 outputs the input image data to the interpolation unit 11 as it is.

  The composite image synthesized by the synthesis unit 10 and input to the interpolation unit 11 is, for example, a Bayer array image. The interpolating unit 11 interpolates color information for pixels in the image that lack color information. The interpolation unit 11 interpolates the missing color information, for example, by performing an averaging process using a signal of a peripheral pixel having color information to be interpolated, and is shown in FIGS. 3 (a) to 3 (c). Such a color image is generated. The composite image data colored by the interpolation unit 11 is input to the image processing unit 12. The image processing unit 12 performs processing for improving the appearance of an image, such as gradation correction, color reproducibility correction, and contour enhancement.

  The resizing unit 13 changes the size of the image processed by the image processing unit 12 so as to be an image size suitable for the display device 14. The display device 14 is, for example, a finder or a monitor of an imaging device that displays an image based on the image data processed by the resizing unit 13. The operation unit 15 includes an input device operated by a user (photographer), and outputs a signal based on an operation by the user to the CPU 8. The CPU 8 determines an instruction from the user based on the signal output from the operation unit 15.

  Next, information stored in the recording medium 7 will be described in detail. As shown in FIG. 4, the recording medium 7 stores a plurality of data A1, A2,. In each data, image data and video information are associated and recorded as a pair. The data A1 includes video information A1a and image data A1b, the data A2 includes video information A2a and image data A2b, and the data An includes video information Ana and image data Anb. Each of the above image data is video data constituting a moving image. One piece of video information is added to one piece of image data including a series of pieces of video data, but video information may be added to each frame of one piece of image data as frame header information.

  The image data recorded on the recording medium 7 is image data (RAW data) that has not undergone image processing such as white balance, gradation correction, contour enhancement, and color correction on the electrical signal obtained by the image sensor 2. ). By recording the RAW data in the recording medium 7, even if various image processing parameters are changed at the time of reproduction, it is possible to perform appropriate processing without being affected by the change before the change.

  The video information recorded together with the image data is information used for image processing for correcting the imaging optical system information, the driving information of the image sensor 2, and the gradation characteristics and color reproducibility. The imaging optical system information is information relating to the lens 1 and includes information such as the type of lens, aperture value, zoom position, and focus position. The drive information of the image pickup device 2 includes information such as the drive timing (frame rate) of the image pickup device 2 controlled by the drive circuit 3 and the electronic shutter speed.

  Information used for image processing for correcting gradation characteristics and color reproducibility is an image processing parameter used when the analog processing unit 4, the image processing unit 6, and the image processing unit 12 process image data. . The image processing parameters of the analog processing unit 4 are, for example, a noise removal level and a gain in amplification processing. The image processing parameters of the image processing unit 6 include, for example, parameters for suppressing variations in black level, a table for linear correction of output characteristics of the image sensor 2, and correction for light collection unevenness and sensitivity unevenness of the lens 1. It is a table. The image processing parameters of the image processing unit 12 are, for example, the white balance value, the type of gamma table, and the degree of color enhancement.

  At the time of shooting, the CPU 8 reads the set values of the lens 1, the drive circuit 3, the analog processing unit 4, the image processing unit 6, and the image processing unit 12, and generates the above video information. The CPU 8 records the generated video information on the recording medium 7 in association with the image data generated by imaging.

  Next, setting of shooting conditions will be described. The user can set shooting conditions by operating the operation unit 15 or directly operating each unit. When shooting conditions are set during preparation before shooting, an image as shown in FIG. 5 is displayed on the screen 14a of the display device 14. On the screen 14a, an imaging condition M1 including information on the lens 1 and the imaging device 2, an image processing parameter M2 used for image processing for correcting gradation characteristics and color reproducibility, and a synthesis mode M3 are displayed. .

  The composition mode M3 (composition condition) indicates the condition for image composition. When specifying the conditions for image composition, for example, the user specifies which of the two image data is to be over and which of the two image data is to be cut out Is done. In addition, an instruction to start playback of an image, an instruction to stop playback, a freeze for displaying a still image, repeated playback for repeatedly playing a video composed of the same image data, and the like are specified by the user as a synthesis condition. The imaging condition M1, the image processing parameter M2, and the composition mode M3 can be selected from a plurality.

  Selection of the imaging condition M1, the image processing parameter M2, and the synthesis mode M3 via the operation unit 15 is performed as follows. The CPU 8 sets the selected condition based on the signal output from the operation unit 15. For example, when the imaging condition M1 is input, the CPU 8 sets the imaging condition in the lens 1 or the drive circuit 3. When the image processing parameter M2 is input, the CPU 8 sets the image processing parameters of the analog processing unit 4, the image processing unit 6, or the image processing unit 12. When the synthesis mode M3 is input, the CPU 8 sets control parameters used by the image conversion unit 9, the synthesis unit 10, or the display device 14 at the time of image synthesis.

  Next, with reference to FIG. 6, a photographing method using the imaging apparatus according to the present embodiment will be described. First, preparation for capturing an image for synthesis is started, and an imaging mode is selected by a photographer. In the present embodiment, it is assumed that a composite display mode and a non-composite display mode are prepared as imaging modes. The composite display mode is a mode in which two images are combined to display a composite image, and the non-composite display mode is a mode in which a captured image is displayed as it is without combining the images. The photographer determines whether or not to synthesize and display an image, and the determination result is input to the operation unit 15 (step S601). The operation unit 15 outputs a signal indicating the determination result to the CPU 8. The CPU 8 determines an imaging mode based on the input signal (step S602). If the imaging mode is the composite display mode, the process proceeds to step S605. If the imaging mode is the non-composite display mode, the process proceeds to step S603.

  Hereinafter, a photographing method when the non-composite display mode is selected will be described. When the imaging device operates in the non-composite display mode, a through image of the captured image is displayed on the display device 14, and the photographer can perform a normal shooting operation while checking the through image. . The image data processed by the image processing unit 6 is input to the image conversion unit 9. The image conversion unit 9 outputs the image data to the synthesis unit 10 without converting the frame rate (through). The combining unit 10 also outputs the input image data to the interpolation unit 11 as it is. The interpolation unit 11 performs an interpolation process on the color components of the image data, and generates image data corresponding to the color image. The image processing unit 12 performs various types of processing on the image data that has been colorized by the interpolation unit 11. The resizing unit 13 performs processing for changing the image size so that the image data processed by the image processing unit 12 has an image size suitable for the display device 14. The display device 14 such as a viewfinder or a monitor of the imaging device displays an image based on the image data processed by the resizing unit 13 (step S603). The photographer can take a picture while confirming the image displayed on the display device 14.

  Subsequently, based on the displayed image, the imaging condition and various image processing parameters are input and set by the photographer (step S604). Subsequent processing proceeds to step S614. In step S614, an instruction to start shooting is input via the operation unit 15, and the imaging apparatus starts a shooting operation. After the start of imaging, image data obtained by imaging the subject is recorded on the recording medium 7. At this time, information on the imaging conditions and various image processing parameters set in step S604 is added to the image data as video information and recorded on the recording medium 7 (step S615). By photographing in the non-composite display mode, for example, image data for composition used in the composite display mode is generated.

  Hereinafter, a photographing method when the composite display mode is selected will be described. The display device 14 displays file information of image data recorded on the recording medium 7 and a list of thumbnail images in accordance with an instruction from the CPU 8 (step S605). FIG. 7 shows an example of display at this time. As shown in FIG. 7, thumbnail images F1b, F2b,..., Fnb are displayed on the display screen 14a of the display device 14 together with the file names F1a, F2a,. Each image data is associated with imaging conditions including imaging conditions and image processing parameters. This photographing condition may be displayed on the screen 14a.

  Subsequently, the photographer selects image data to be used for composition from the displayed list of image data. The selection of image data is performed via the operation unit 15, and the CPU 8 determines which image data is selected based on the signal output from the operation unit 15 (step S606). After the image data is selected, for example, an image based on the selected image data is displayed on the display device 14, and based on the display, the operator determines whether the selected image is a desired image. . The CPU 8 monitors whether a signal indicating an instruction to end the selection of image data or an instruction to continue the selection of image data is output from the operation unit 15. The CPU 8 determines whether or not the selection of the image data is completed based on the signal output from the operation unit 15 (step S607).

  If a signal indicating an instruction to continue selecting image data is output from the operation unit 15, the process returns to step S601. In addition, when a signal indicating an instruction to end selection of image data is output from the operation unit 15, image data to be synthesized in real time with image data generated by subsequent shooting is selected. In this case, with respect to the two images to be combined, which image is to be subjected to the cutting process such as a blue screen, the order of image superposition, and the like are input. Then, an image based on the combined image data obtained by combining the image data processed by the image processing unit 6 and the image data read from the recording medium 7 is displayed on the display device 14 (step S608).

  Subsequently, the selection of the synthesis mode (compositing condition) indicating the order of the image processing at the time of cropping processing such as blue screen and the composition, the start of playback, playback stop, freeze, and repeated playback is performed on the operation unit. 15 (step S609). After selecting the compositing mode, whether to use the video information added to the image data reproduced from the recording medium 7 is selected via the operation unit 15 (step S610). The selection of whether to use the video information may be performed before the selection of the imaging mode.

  When it is selected that the video information is to be used, the CPU 8 reads the video information associated with the image data combined with the image currently being shot from the recording medium 7, and sets the shooting conditions based on the video information. Set for each part of the imaging device. For example, the CPU 8 refers to the driving information of the lens 1 and the image sensor 2 included in the video information, controls the state of the lens 1, and sets the parameters of the driving circuit 3 necessary for driving the image sensor 2. Further, the CPU 8 refers to the image processing parameters included in the video information, and sets necessary parameters for the analog processing unit 4, the image processing unit 6, and the image processing unit 12 (step S611).

  Subsequently, a composite image is displayed, and various photographing conditions are finely adjusted by the photographer as necessary with reference to the photographing conditions set in step S611, and the final photographing conditions are set. This is performed (step S612). When freeze is selected as the composition condition, a still image is displayed, so that fine adjustment of the photographing condition can be performed more easily. The subsequent processing proceeds to step S614. On the other hand, if it is selected in step S610 that the video information is not used, various shooting conditions are set by the photographer so as to be optimal (step S613). The subsequent processing proceeds to step S614.

  After automatic setting of shooting conditions or manual setting, an instruction to start shooting is input via the operation unit 15, and the imaging apparatus starts a shooting operation (step S614). After the start of imaging, image data obtained by imaging the subject is recorded on the recording medium 7. At this time, information on imaging conditions and various image processing parameters is added to the image data as video information and recorded on the recording medium 7. Further, the image data obtained by imaging the subject is combined with the image data recorded in advance on the recording medium 7 to generate combined image data, and the combined image is displayed on the display device 14 (step S615). . When a photographing end instruction is input by the photographer via the operation unit 15, photographing and recording of image data are finished.

  FIG. 8 is an example of a composite image displayed on the screen 14a of the display device 14 in steps S612 and S615. This synthesized image is an image displayed based on image data obtained by synthesizing image data of an outdoor landscape image recorded in advance on the recording medium 7 and image data of a person image that has been subjected to chroma key photography for synthesis. It is. The photographer can perform actual photographing in real time while confirming the composite image displayed on the display device 14 such as a viewfinder of the imaging device. The display device 14 displays the currently set imaging condition M1 and image processing parameter M2 together with the composite image.

  In the above description, the image data generated in real time by imaging and processed by the image processing unit 6 and the image data recorded in advance on the recording medium 7 are synthesized. The two pieces of image data may be combined. For example, as described above, it is assumed that a list of image data stored in the recording medium 7 is displayed on the display device 14 and two image data are selected by the operator. The CPU 8 reads the selected two pieces of image data from the recording medium 7 and outputs them to the image conversion unit 9.

  The two image data are output to the synthesizing unit 10 with the same frame rate by the image converting unit 9. The synthesizer 10 performs the same process as described above, synthesizes two image data, and outputs the synthesized image data to the interpolator 11. At the time of composition, the order of superimposing image data, designation of a target for clipping processing, and the like are input via the operation unit 15, and the composition unit 10 operates according to the input information. The combined image data generated by the combining unit 10 is processed by the interpolation unit 11 to the resizing unit 13 and output to the display device 14. The display device 14 displays the composite image.

  As described above, the imaging apparatus according to the present embodiment generates the synthesized image data by synthesizing the first image data recorded in advance and the second image data based on the image signal output from the imaging element. Then, an image based on the composite image data is displayed. The imaging apparatus according to the present embodiment sets shooting conditions based on video information (shooting condition information) associated with the first image data. As a result, the same shooting conditions as when shooting a composite image in advance are automatically set in the imaging apparatus and shooting is performed, so that the shooting time can be greatly shortened. Furthermore, it is not necessary to prepare a playback device for video playback and a video synthesis device for video synthesis as in the prior art, and a composite image can be generated at low cost by using one imaging device according to the present embodiment. .

  Further, for example, when a person is photographed using pre-recorded background image data for composition, the imaging apparatus according to the present embodiment displays the composite image on a viewfinder or the like. As a result, even if only one of the subjects to be synthesized is photographed, it is possible to photograph while confirming the composition result in real time. Can do. Furthermore, the photographer can determine whether or not the photographing conditions set automatically are optimal by checking the composite image.

  In addition, the imaging apparatus according to the present embodiment displays shooting conditions together with a composite image. As a result, the operator can check the shooting conditions, and fine adjustment of the shooting conditions can be performed based on the shooting conditions.

  The imaging apparatus according to the present embodiment also has a function of combining two image data recorded on the recording medium 7 and displaying a combined image. Thereby, the composite result can be confirmed again after photographing.

  The embodiment of the present invention has been described in detail above with reference to the drawings, but the specific configuration is not limited to this embodiment, and includes design changes and the like within a scope that does not depart from the gist of the present invention. For example, the present invention provides an image pickup apparatus using a single-plate image pickup method having an image pickup device having primary color filters arranged in a Bayer method, and an image pickup device having an image pickup device of other color filter array. The present invention is also applicable to an apparatus or an imaging apparatus using a plurality of imaging elements. As a recording medium on which image data is recorded, various randomly accessible media such as a card-type conductor memory and a disk-shaped medium such as a hard disk can be applied.

It is a block diagram which shows the structure of the imaging device by one Embodiment of this invention. FIG. 4 is a reference diagram for explaining an arrangement of pixels of an image sensor included in an imaging apparatus according to an embodiment of the present invention. FIG. 6 is a reference diagram for explaining an interpolation process performed by an interpolation unit included in an imaging apparatus according to an embodiment of the present invention. FIG. 6 is a reference diagram illustrating data recorded on a recording medium included in the imaging apparatus according to the embodiment of the present invention. FIG. 5 is a reference diagram for describing a method for setting shooting conditions according to an embodiment of the present invention. It is a flowchart which shows the procedure of imaging | photography using the imaging device by one Embodiment of this invention. It is a reference figure showing an example of a list display of image data in one embodiment of the present invention. FIG. 8 is a reference diagram illustrating an example of a composite image displayed on a display device included in an imaging device according to an embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Lens, 2 ... Image pick-up element, 3 ... Drive circuit, 4 ... Analog processing part, 5 ... A / D conversion part, 6, 12 ... Image processing part, 7. ..Recording medium, 8... CPU, 9... Image conversion unit, 10... Composition unit, 11... Interpolation unit, 13 .. resize unit, 14.・ Operation part

Claims (9)

An imaging optical system that collects light from the subject and forms an image;
An image sensor that photoelectrically converts a subject image formed by the imaging optical system and generates an image signal;
Storage means for storing in advance image data associated with shooting condition information;
Synthesizing means for synthesizing the first image data stored in advance by the storage means and the second image data based on the image signal output from the image sensor, and generating synthesized image data;
Display means for displaying an image based on the combined image data generated by the combining means;
Shooting condition setting means for setting shooting conditions based on the shooting condition information associated with the first image data when shooting to generate the second image data;
An imaging apparatus having   The imaging apparatus according to claim 1, wherein the imaging condition information is information on the imaging optical system and driving information on the imaging element.   The imaging apparatus according to claim 1, wherein the photographing condition information is information used for image processing for correcting gradation characteristics and color reproducibility.   The said synthetic | combination means further synthesize | combines the two said image data beforehand memorize | stored by the said memory | storage means, The said synthetic | combination image data is produced | generated, The Claim 1 characterized by the above-mentioned Imaging device.   The imaging device according to claim 1, wherein the storage unit further stores image data input from an external device.   The imaging apparatus according to claim 1, wherein the display unit further has a freeze function for displaying a still image based on the composite image data.   The composition condition when the composition means composes the first image data and the second image data can be selected from a plurality of conditions. The imaging device according to the section.   When the frame rate of the first image data stored in advance by the storage means and the frame rate of the second image data based on the image signal output from the image sensor are different, two image data frames The imaging apparatus according to claim 1, further comprising a frame rate conversion unit configured to convert the frame rate so that the intervals are equally spaced on the time axis. The imaging apparatus according to claim 1, wherein the display unit further displays the photographing condition information together with an image based on the composite image data.

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