JP4799367B2 - Image reproducing apparatus and method, and imaging apparatus - Google Patents

Description

  The present invention relates to an image reproducing apparatus and an image reproducing method for reproducing and displaying an image. The present invention also relates to an imaging apparatus. The present invention particularly relates to a technique for displaying a plurality of images side by side.

  When searching for a desired image from a large number of captured images or checking the contents of each image using the display screen of the display unit provided in the imaging device, one image is displayed. A normal display method for displaying the entire screen or a thumbnail display method for displaying a plurality of images side by side is used.

  If the normal display method is used, it is relatively easy to confirm the face of a person included in the image, and it is easy to confirm the contents of the image. It becomes difficult to find out. On the other hand, if the thumbnail display method is used, a plurality of images can be confirmed at the same time, so that a search can be performed in a short time.

  However, in the conventional thumbnail display method, each image is displayed with the image size uniformly reduced regardless of the content of the image, so it may be difficult to confirm the person who has been photographed.

  In order to solve such a problem, the following method is disclosed in Patent Document 1 below. In this method, a human face is detected from a captured image, and a face image including the face is cut out from the entire image (the entire captured image). Then, the face image is displayed as a thumbnail instead of the entire image. Alternatively, the face image and the entire image are alternately displayed at regular time intervals or according to an operation.

JP 2005-269563 A

  However, if the face image is displayed as a thumbnail instead of the entire image, only the face portion in the entire image can be confirmed, so the scenery of the entire image is not known, and it may be difficult to search for a desired image. . Even if the face image and the entire image are displayed alternately, the face and the entire landscape cannot be confirmed at the same time, so the user remembers where the face was reflected in the entire landscape. This places an extra burden on the user. In addition, the need for additional operations for alternate display imposes an extra burden on the user.

  Although the problem of the conventional method has been described focusing on the person's face, the same problem may occur when focusing on an object other than the person's face.

  Accordingly, an object of the present invention is to provide an image reproduction device, an image reproduction method, and an imaging device that contribute to facilitating grasping of the contents of each image when a plurality of images are displayed side by side. In particular, it is an object to provide an image reproducing apparatus, an image reproducing method, and an imaging apparatus that contribute to facilitating simultaneous confirmation of an entire image and an object to be noted.

  In order to achieve the above object, a first image reproduction device according to the present invention includes a display unit capable of displaying a plurality of display target images side by side on a display screen, and a display control unit for controlling display contents of the display unit. Object detection means for detecting a predetermined type of object from each display target image, and the display control means has a size of the detected object when the plurality of display target images are displayed side by side. Accordingly, the display size of each display target image on the display screen is determined.

  The object detection means detects an object (for example, a human face) that is estimated to be relatively likely to be noticed. Then, the display size of each display target image is determined according to the size of the object on the image. As a result, for example, when the size of the object is relatively small, it is possible to display a display target image including the object relatively large, and the contents of each display target image can be easily grasped.

  Specifically, for example, in the first image reproduction device, the display control unit calculates a size evaluation value corresponding to the size of the object for the display target image from which the object is detected, and When the size evaluation value is smaller than a predetermined first threshold value or when the ratio of the size evaluation value to the entire image size of the display target image is smaller than a predetermined second threshold value, the display target corresponding to the size evaluation value The display size of the image is made larger than a predetermined reference display size, and the plurality of display target images are displayed side by side.

  In order to achieve the above object, a second image reproduction device according to the present invention includes a display unit capable of displaying a plurality of display target images side by side on a display screen, and a display control for controlling display contents of the display unit. Means and an object detection means for detecting a predetermined type of object from each display target image, and the display control means is configured to display the plurality of display target images when displaying the plurality of display target images side by side. A plurality of whole image display areas for displaying each whole image are provided on the display screen, and a partial image including the object in the display target image is enlarged according to the size of the detected object. A partial image display area for display is provided on the display screen.

  Accordingly, the user can simultaneously confirm the entire display target image and an object (for example, a human face) that is estimated to be relatively likely to be noticed, and the contents of each display target image. Easy to grasp.

  Specifically, for example, in the second image reproduction device, the display control unit calculates a size evaluation value corresponding to the size of the object for the display target image from which the object is detected, and When the size evaluation value is smaller than a predetermined first threshold value or when the ratio of the size evaluation value to the entire image size of the display target image is smaller than a predetermined second threshold value, the display target corresponding to the size evaluation value An image is handled as an enlargement target image, and a partial image including the object in the enlargement target image as the partial image is displayed in the partial image display area.

  Further, for example, in the second image reproduction device, the enlargement target image includes n objects (n is an integer of 2 or more) as the object, and the partial image display region for the enlargement target image And the display control means extracts n partial images including each object from the enlargement target image, where n> m is satisfied and m> m is an integer equal to or greater than 1. By using the m partial image display areas in a time-sharing manner, the n partial images are displayed in the m partial image display areas.

  For example, in the second image reproduction device, the partial image display area is provided on the display screen so as not to overlap the plurality of whole image display areas.

  Instead of this, for example, in the second image reproduction device, a part or all of the partial image display area is displayed on the display screen so as to overlap the entire image display area corresponding to the partial image display area. Provided.

  In this case, for example, the size of the partial image display area changes with time, and in conjunction with this, the enlargement magnification of the partial image at the time of display changes.

  In order to achieve the above object, a third image reproduction device according to the present invention includes a display unit capable of displaying a plurality of display target images side by side on a display screen, and display control for controlling display contents of the display unit. And when the plurality of display target images are displayed side by side, the display control unit displays a plurality of whole image display areas for displaying each whole image of the plurality of display target images on the display screen. A partial image display area for enlarging and displaying a partial image in the display target image on the display screen, and an image in the attention area that moves in the display target image as time elapses Is displayed in the partial image display area as the partial image.

  Thereby, the user can confirm the local enlarged image at the same time while viewing the display target image as a whole, and the contents of each display target image can be easily understood.

  Specifically, for example, in the third image reproduction device, the display device further includes object detection means for detecting a predetermined type of object from each display target image, and the display control means is configured to detect the display in which the object is detected. A size evaluation value corresponding to the size of the object is calculated for the target image, and when the size evaluation value is smaller than a predetermined first threshold value, or the size evaluation value for the entire image size of the display target image When the ratio is smaller than a predetermined second threshold, the display target image corresponding to the size evaluation value is handled as an enlargement target image, and the attention area is defined in the enlargement target image.

  For example, in the third image reproduction device, the partial image display area is provided on the display screen so as not to overlap the plurality of whole image display areas.

  Instead, for example, in the third image reproduction device, a part or all of the partial image display area is displayed on the display screen so as to overlap the entire image display area corresponding to the partial image display area. Provided.

  For example, in the first, second, or third image reproduction device, the object includes a human face.

  In order to achieve the above object, an imaging apparatus according to the present invention includes a first, second, or third image reproduction device, an imaging unit that generates a captured image by imaging, and a plurality of images including the captured image. Storage means for storing. The display target image for the image playback device is selected from the plurality of images.

  In order to achieve the above object, a first image reproduction method according to the present invention is an image reproduction method in which a plurality of display target images are displayed side by side on a display screen. , And the display size of each display target image on the display screen is determined according to the detected size of the object.

  In order to achieve the above object, a second image reproduction method according to the present invention is an image reproduction method in which a plurality of display target images are displayed side by side on a display screen. And displaying a plurality of whole image display areas for displaying each whole image of the plurality of display target images on the display screen, and depending on the size of the detected object, the display target image A partial image display area for enlarging and displaying a partial image including the object is provided on the display screen.

  In order to achieve the above object, a third image reproduction method according to the present invention is an image reproduction method for displaying a plurality of display target images side by side on a display screen. A plurality of entire image display areas for displaying are provided on the display screen, and a partial image display area for displaying a partial image in the display target image in an enlarged manner is provided on the display screen. An image in a region of interest that moves with time in the image is displayed as the partial image in the partial image display region.

  The present invention contributes to facilitating grasping of the contents of each image when a plurality of images are displayed side by side.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. In each of the drawings to be referred to, the same part is denoted by the same reference numeral, and redundant description regarding the same part is omitted in principle. The first to fifth embodiments will be described later. First, matters common to each embodiment or items referred to in each embodiment will be described.

  FIG. 1 is an overall block diagram of an imaging apparatus 1 according to an embodiment of the present invention. The imaging device 1 is a digital still camera that can capture still images, or a digital video camera that can capture still images and moving images.

  The imaging device 1 includes an imaging unit 11, an AFE (Analog Front End) 12, a control unit 13, a face detection unit 14, a display unit 15, a recording medium 16, and an operation unit 17. The control unit 13 also has a function as a display control unit for controlling the display content of the display unit 15, defines a region for displaying an image on the display screen of the display unit 15, and displays the image in the region. Control necessary for display is performed (details will be described later).

  FIG. 2 shows an internal configuration diagram of the imaging unit 11. By using a color filter or the like for the imaging unit 11, the imaging device 1 is configured to generate a color image by shooting. The imaging unit 11 includes an optical system 35 including a plurality of lenses including a zoom lens 30 and a focus lens 31, an aperture 32, an imaging element 33, and a driver 34. The zoom lens 30 and the focus lens 31 are movable in the optical axis direction.

  A driver 34 composed of a motor or the like controls the movement of the zoom lens 30 and the focus lens 31 based on a control signal from the control unit 13 and controls the zoom magnification and focal length of the optical system 35. The driver 34 controls the opening degree (size of the opening) of the diaphragm 32 based on a control signal from the control unit 13.

  Incident light from the subject enters the image sensor 33 through the lenses and the diaphragm 32 constituting the optical system 35. Each lens constituting the optical system 35 forms an optical image of the subject on the image sensor 33.

  The image sensor 33 is composed of, for example, a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS) image sensor. The image sensor 33 photoelectrically converts an optical image incident through the optical system 35 and the diaphragm 32 and outputs an electrical signal obtained by the photoelectric conversion to the AFE 12. More specifically, the imaging device 33 includes a plurality of pixels (light receiving pixels; not shown) that are two-dimensionally arranged in a matrix, and in each photographing, each pixel receives a signal charge having a charge amount corresponding to the exposure time. store. The electrical signal from each pixel having a magnitude proportional to the amount of stored signal charge is sequentially output to the subsequent AFE 12 in accordance with a drive pulse from a timing generator (not shown).

  The AFE 12 amplifies the analog signal output from the imaging unit 11 (image sensor 33), and converts the amplified analog signal into a digital signal. The AFE 12 sequentially outputs this digital signal to the control unit 13.

  The control unit 13 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and also functions as a video signal processing unit. Based on the output signal of the AFE 12, the control unit 13 generates a video signal representing an image captured by the imaging unit 11 (hereinafter also referred to as “captured image”).

  The control unit 13 includes an AF evaluation value detection unit that detects an AF evaluation value according to the contrast amount in the focus detection area in the captured image, and an AE evaluation value that detects an AE evaluation value according to the brightness of the captured image. Includes a detector. The control unit 13 adjusts the position of the focus lens 31 via the driver 34 in FIG. 2 according to the AF evaluation value, thereby forming an optical image of the subject on the imaging surface of the imaging element 33. Moreover, the control part 13 controls the brightness of a picked-up image by adjusting the opening degree of the aperture stop 32 via the driver 34 of FIG. 2 according to the AE evaluation value.

  The face detection unit 14 in FIG. 1 detects a person's face from each captured image, and extracts a face area including the face. Receiving the detection result of the face detection unit 14, the control unit 13 recognizes the size and position of the face on the image. Various methods are known as methods for detecting a face included in an image, and the face detection unit 14 can employ any method. For example, a face (face area) may be detected by extracting a skin color area from a photographed image as in the technique described in Japanese Patent Application Laid-Open No. 2000-105819, or Japanese Patent Application Laid-Open No. 2006-21139 and Japanese Patent Application Laid-Open No. 2006. A face (face area) may be detected using the technique described in Japanese Patent No. -72770 or the above-mentioned Patent Document 1.

  Typically, for example, the similarity between both images is determined by comparing the image of the region of interest set in the input image (that is, the captured image) with a reference face image having a predetermined image size. Based on this, it is detected whether or not a face is included in the region of interest (whether or not the region of interest is a face region). The similarity determination is performed by extracting a feature amount effective for identifying whether the face is a face. The feature amount is a horizontal edge, a vertical edge, a right diagonal edge, a left diagonal edge, or the like.

  In the input image, the region of interest is shifted in the horizontal direction or the vertical direction pixel by pixel. Then, the image of the region of interest after the shift is compared with the reference face image, the similarity between both images is determined again, and the same detection is performed. In this way, the region of interest is updated and set, for example, while being shifted pixel by pixel from the upper left to the lower right of the input image.

  Further, the input image (that is, the photographed image) is reduced at a certain rate, and the same face detection process is performed on the reduced image. By repeating such processing, a face of any size can be detected from the input image.

  The display unit 15 in FIG. 1 is a display device including a liquid crystal display panel or the like, and displays an image taken in the immediately previous frame, an image recorded on the recording medium 16, or the like under the control of the control unit 13. . The recording medium 16 is a non-volatile memory such as an SD (Secure Digital) memory card, and stores captured images and the like under the control of the control unit 13. The operation unit 17 includes a shutter button, a so-called cross key (both not shown), and the like, and accepts an operation from the outside. The operation content for the operation unit 17 is transmitted to the control unit 13.

  The operation modes of the imaging apparatus 1 include a shooting mode in which still images (and moving images) can be shot, and a playback mode in which still images (and moving images) recorded on the recording medium 16 are played back and displayed on the display unit 15. included. Transition between the modes is performed according to the operation on the operation unit 17.

  The playback mode includes a thumbnail image playback mode in which a plurality of images are displayed in a list and a normal playback mode in which only one image is displayed. In the thumbnail image reproduction mode, a plurality of images recorded on the recording medium 16 are displayed as a list on the display unit 15, that is, a plurality of images stored on the recording medium 16 are displayed side by side on the display screen. .

  Each image displayed in a list is a so-called thumbnail image corresponding to a reduced image of each image (that is, each captured image) recorded on the recording medium 16. However, with respect to a certain target image, the target image and the thumbnail image of the target image are essentially the same image except for the image size. Therefore, for simplification of description, in this specification, even when “display a reduced image (thumbnail image) of a target image” is expressed as “display a target image”.

  The imaging device 1 takes a characteristic reproduction method in this thumbnail image reproduction mode. As examples focusing on this reproduction method, first to fifth examples will be described below. The matters described in one embodiment can be applied to other embodiments as long as no contradiction arises.

<< First Example >>
First, the first embodiment will be described. Now, paying attention to five images (captured images) among a plurality of images recorded on the recording medium 16, these five images are displayed as a list (displayed side by side) on the display unit 15 in the thumbnail image reproduction mode. ) Think about the case. The control unit 13 selects an image to be displayed as a list (in the present example, the above five images) from among a plurality of images recorded on the recording medium 16. Each image to be displayed as a list in the thumbnail image playback mode is particularly referred to as a display target image. The display target image can be read as a parallel display target image or a list display target image.

FIG. 3 shows these five display target images W ₁ , W ₂ , W ₃ , W ₄ and W ₅ . Each of the display target images W ₁ , W _2, and W ₃ includes (depicts) only one person's face as a subject. The display target images W ₄ and W ₅ do not include a human face. In FIG. 3 and each of the drawings described later including the illustration of the face, the illustration of the components of the human body other than the face (such as the torso and limbs) is omitted in order to prevent the illustration from becoming complicated.

The face detection unit 14 detects a face from each display target image. The control unit 13 calculates a face size evaluation value corresponding to the size of the face for the display target image from which the face is detected. In the present example, the face size evaluation value is calculated for each of the display target images W ₁ , W _2, and W ₃ , but the face size evaluation value for the display target images W ₄ and W ₅ is Not calculated. In this specification, unless otherwise specified, “face size” means “face size in an image”, not “face size in real space”.

The face size evaluation value is calculated as a value that is approximately proportional to the size of the detected face. That is, for example, the face size evaluation value is represented by the area of the detected face or the number of pixels constituting the face on the image, and increases as the size of the detected face increases. Each face size evaluation value calculated for the display target image W _1, W ₂ and W _3, respectively, denoted by S _W1, S _W2 and S _W3. As shown in FIG. 3, the size of the face in the display target image W ₂ is larger than the size of the face in the display target image W ₁ , and that in the display target image W ₃ is larger than the size of the face in the display target image W ₂ . If it is greater, S _W1 <S _W2 <S _W3 .

The control unit 13 compares the face size evaluation value with a predetermined first threshold value S _TH1 for each face size evaluation value. When the face size evaluation value is smaller than the first threshold value S _TH1 , the display size of the display target image corresponding to the face size evaluation value is set as the enlarged display size, while the face size evaluation value is the first threshold value S _TH1. Is larger than that, the display size of the display target image corresponding to the face size evaluation value is set as the reference display size. The display size here is the display size on the display screen in the thumbnail image playback mode. The enlarged display size is larger than the reference display size.

Assume that S _W1 <S _W2 <S _TH1 <S _W3 . Then, the display size for the display target images W ₁ and W ₂ is an enlarged display size, and the display size for the display target image W ₃ is a reference display size. In addition, the display size for the display target images W ₄ and W ₅ that do not include a face is set as a reference display size.

FIG. 4 shows the state of the display screen when the display target images W _{1 to} W ₅ are displayed as a list in the thumbnail image playback mode. In FIG. 4, reference numeral 50 represents a display screen of the display unit 15. More specifically, a square frame denoted by reference numeral 50 represents the entire display area on the display screen of the display unit 15. As shown in FIG. 4, the display target images W _{1 to} W ₅ are displayed side by side on the display screen, but the display size for the display target images W _{3 to} W ₅ is the reference display size, and the display target image W _{1 is} displayed. And the display size for W ₂ is an enlarged display size larger than the reference image size. That is, on the display screen, each of the display target images W ₁ and W ₂ is displayed larger than each of the display target images W _{3 to} W ₅ .

  In the thumbnail image playback mode, since a plurality of images are displayed as a list, the display size of each image is relatively small, and it is often difficult to confirm a person. Considering this, in the first embodiment, when the face is relatively small, the display size of the display target image corresponding to the face is relatively large. This facilitates person identification. Moreover, since the display target image and the partial image of the display target image are not selectively displayed as in the method described in Patent Document 1, it is easy to grasp the contents of the image. Further, in order to realize these, the user is not forced to perform an additional operation.

  Incidentally, as described above, the face size evaluation value is calculated as a value substantially proportional to the size of the face on the image. On the other hand, if the overall image size of the display target image increases or decreases, the size of the face on the image also increases or decreases accordingly. For this reason, the face size evaluation value increases or decreases as the overall image size of the display target image based on the face size evaluation value is calculated.

Considering this, the display size of each display target image may be determined as follows. That is, for each face size evaluation value, the ratio of the face size evaluation value to the entire image size of the display target image is compared with a predetermined second threshold value S _TH2 . When the former is smaller than the latter, the display size of the display target image corresponding to the face size evaluation value is set as an enlarged display size. When the former is larger than the latter, the display size corresponds to the face size evaluation value. The display size of the display target image is set as a reference display size. Here, “the ratio of the face size evaluation value to the entire image size of the display target image” has the same meaning as “the ratio of the face size evaluation value to the value representing the entire image size of the display target image”.

Incidentally, by setting the value in consideration of the entire image size as the threshold S _TH1, the determination method of the display size based on a comparison of the face size evaluation value and the first threshold value S _TH1, the overall image size of the display target image It can be said that the method of determining the display size based on the comparison of the ratio of the face size evaluation value to the second threshold value S _TH2 is equivalent.

Further, when a plurality of faces are included in one display target image as in the display target image W ₆ shown in FIG. 5, any one of the following first to fourth calculation methods is adopted. A size evaluation value is calculated. The display target image W _{6 is} also an image recorded on the recording medium 16 in FIG.

In the first calculation method, the smallest face is identified as a target face by comparing the sizes of a plurality of faces, and the face size evaluation value is calculated by paying attention only to the size of the target face. In this case, the face size evaluation value is calculated as a value that is approximately proportional to the size of the face of interest (the size on the image), and increases as the size of the face of interest increases.
In the second calculation method, the size of a plurality of faces is compared to identify the largest face as the attention face, and the face size evaluation value is calculated by paying attention only to the size of the attention face. In this case, the face size evaluation value is calculated as a value that is approximately proportional to the size of the face of interest (the size on the image), and increases as the size of the face of interest increases.
In the third calculation method, an average value (average size) of a plurality of face sizes is calculated, and a face size evaluation value is calculated from the average value. In this case, the face size evaluation value is calculated as a value approximately proportional to the average value, and increases as the average value increases.
In the fourth calculation method, a total value (total size) of a plurality of face sizes is calculated, and a face size evaluation value is calculated from the total value. In this case, the face size evaluation value is calculated as a value approximately proportional to the total value, and increases as the total value increases.

  Considering the ease of person confirmation, it is preferable to adopt the first calculation method.

  Next, an operation procedure of the imaging apparatus 1 in the thumbnail image reproduction mode will be described with reference to FIG. FIG. 6 is a flowchart showing this operation procedure.

In step S <b> 1, a display target image is input to the face detection unit 14. In subsequent step S2, the face detection unit 14 detects a face from the given display target image. In a succeeding step S3, it is determined whether or not a face is detected. If a face is detected, the process proceeds to step S4. On the other hand, if a face is not detected, the process proceeds to step S7. For this reason, when the display target image input in step S1 is any one of the display target images W ₁ , W _2, and W ₃ , the process proceeds to step S 4, and when the display target image is the display target image W ₄ or W _5. The process proceeds to step S7. The display size for the display target image in which no face is detected is set as the reference display size (step S7).

After face size evaluation value calculated in step S4, in step S5, and compares the face size evaluation value and the first threshold value S _TH1. If the former is smaller than the latter, the process proceeds to step S6 to set the display size of the display object image being focused on as the enlarged display size. If the former is larger than the latter, the process proceeds to step S7 and the display object being focused on is displayed. The display size of the image is set as the reference display size. As described above, the comparison in step S5 may be replaced with a comparison between the ratio of the face size evaluation value to the entire image size of the display target image and the second threshold value _STH2 .

In step S8, which is shifted through the processing of step S6 or S7, it is determined whether or not the evaluation consisting of steps S1 to S7 has been performed on the display target images for the number of sheets necessary for performing the list display. For this example, it is determined whether running evaluation of steps S1~S7 the display target image W ₁ to _W-5. If this evaluation is completed, the process proceeds to step S9. If this evaluation is not completed, the process returns to step S1, and the processes of steps S1 to S7 are performed again. In step S9, a list display as shown in FIG. 4 is performed according to the display size of each display target image determined in step S6 or S7.

  Note that the control unit 13 determines the number of display target images to be displayed at a time according to how many display target images to which the enlarged display size is applied among the plurality of display target images to be displayed at the same time. Set the number of sheets as appropriate. If the reference display size is applied to all display target images, for example, a maximum of six display target images can be displayed in a list simultaneously.

Further, the first threshold value S _TH1 or the second threshold value S _TH2 can be set to an arbitrary value, and for example, “S _W1 <S _TH1 <S _W2 <S _W3 ” is established depending on these values. reference display size is applied to the display target image W _2. The first threshold value S _TH1 or the second threshold value S _TH2 may be freely changed by an operation on the operation unit 17.

<< Second Example >>
Next, a second embodiment will be described. In the second embodiment as well, as in the first embodiment, the display target images W _{1 to} W ₅ in FIG. 1 are displayed as a list. As in the first embodiment, referring to the face detection result, the control unit 13 calculates face size evaluation values S _W1 , S _W2 and S _W3 for the display target images W _{1 to} W ₃ .

The control unit 13 compares the face size evaluation value with the first threshold value S _TH1 for each face size evaluation value. When the face size evaluation value is smaller than the first threshold value S _TH1 , the display target image corresponding to the face size evaluation value is handled (certified) as an enlargement target image. On the other hand, when the face size evaluation value is larger than the first threshold value S _TH1 , the display target image corresponding to the face size evaluation value is not handled as the enlargement target image.

Alternatively, as described in the first embodiment, the ratio of the face size evaluation value to the entire image size of the display target image is compared with the second threshold value S _TH2, and based on the comparison result, A display target image to be handled may be determined. In this case, the control unit 13 compares the ratio of the face size evaluation value to the entire image size of the display target image with the second threshold value S _TH2 for each face size evaluation value. If the former is smaller than the latter, the display target image corresponding to the face size evaluation value is handled (certified) as an enlargement target image. On the other hand, when the former is larger than the latter, the display target image corresponding to the face size evaluation value is not handled as the enlargement target image.

Now, the inequality “S _W1 <S _W2 <S _TH1 <S _W3 ” is established, the display target images W ₁ and W ₂ are handled (certified), and the display target image W ₃ is the expansion target image. It was assumed that it was not handled (not certified). Further, the display target images W ₄ and W ₅ that do not include a face are not handled as enlargement target images (not certified).

The control unit 13 cuts out a partial image including the face in the enlargement target image, based on the face detection result of the face detection unit 14. The face detection result includes information for specifying the size and position of the face in the enlargement target image. In this example, a partial image P ₁ is cut out from the display target image W ₁ as shown in FIG. 7A, and the partial image P ₁ is displayed from the display target image W ₂ as shown in FIG. 7B. Cut out ₂ The partial image P ₁ is a rectangular image including the entire face included in the display target image W ₁ . The partial image P ₂ is a rectangular image that includes the entire face included in the display target image W ₂ . The cut out partial image is enlarged and displayed when the list is displayed in the thumbnail image reproduction mode.

FIG. 8 shows an example of area division of the display screen 50 in the thumbnail image reproduction mode according to the second embodiment. FIG. 8 shows an example of region division when the display target images W ₁ and W ₂ are enlargement target images.

On the display screen 50 in FIG. 8, five of the entire image display area WD ₁ ~WD ₅ for displaying each entire image of the display target image W ₁ to _W-5 is provided. Further, on the display screen 50 in FIG. 8, a part image display area PD ₁ and PD ₂ to enlarge the partial image P ₁ and P ₂ are provided. As shown in FIG. 8, each partial image display area is provided separately from each whole image display area. That is, each whole image display area and each partial image display area are provided so as not to overlap each other.

Further, the partial image display area for a certain display target image is arranged close to the entire image display area for the display target image. In the example shown in FIG. 8, a part image display area PD ₁ of the display target image W ₁ is positioned adjacent to the entire image display area WD ₁ of the display target image W _1. The same applies to the partial image display area PD _2.

Hereinafter, the entire image display area WD ₁ ~WD _5, with abbreviated as display area WD ₁ ~WD ₅ respectively, the partial image display area PD ₁ and PD _2, and simply display area PD ₁ and PD ₂ respectively abbreviated To do.

FIG. 9 shows a state in which each display target image is displayed as a list on the display screen 50 divided into regions as shown in FIG. 8 in the thumbnail image reproduction mode. As shown in FIG. 9, the entire images of the display target images W _{1 to} W ₅ are displayed in the display areas WD _{1 to} WD ₅ (see also FIG. 1). In addition, the partial images P ₁ and P _{2 of} FIG. 7 are displayed in the display areas PD ₁ and PD ₂ , respectively. The control unit 13 enlarges the partial image P ₁ as appropriate so that the cut out partial image P ₁ is displayed using the entire display area PD ₁ . The same applies to the partial image P _2.

  By adopting the reproduction method of the second embodiment, the user can simultaneously confirm the entire display target image and the enlarged image of the person's face. Since the display target image and the partial image of the display target image are not selectively displayed as in the technique described in Patent Document 1, it is easy to grasp the contents of the image. Further, in order to realize these, the user is not forced to perform an additional operation.

Next, consider a case where a plurality of faces are included in one display target image as in the display target image W ₆ shown in FIG. The display target image W ₆ includes two faces. Now, thought to replace the display target image W ₁ to W _6, consider the case to list the display target image W ₆ and W ₂ ~W ₅ at the same time. Then, it is assumed that the face size evaluation value for the display target image W ₆ is relatively small and the display target image W ₆ is recognized as the enlargement target image.

In this case, the control unit 13 cuts out a total of two partial images including each face in the display target image W ₆ based on the result of the face detection by the face detection unit 14. That is, as shown in FIG. 10, partial images P _6A and P _6B are cut out from the display target image W ₆ . Two faces included in the display target image W ₆ are referred to as a face F _6A and a face F _6B . The partial image P _6A is a rectangular image including the entire one face F _6A included in the display target image W ₆ , and the partial image P _6B is the other face F included in the display target image W ₆ . It is a rectangular image including the entire _6B .

11A and 11B show how the display target images W ₆ and W _{2 to} W ₅ are simultaneously displayed as a list on the display screen 50 divided into regions as shown in FIG. 8 in the thumbnail image playback mode. Show. As in FIG. 9, the entire display target images W ₆ , W ₂ , W ₃ , W ₄ , and W ₅ are displayed and displayed in the display areas WD ₁ , WD ₂ , WD ₃ , WD _4, and WD ₅ , respectively. Partial image P ₂ is displayed in region PD ₂ . In the display area PD ₁ , partial images P _6A and P _6B are displayed in a time division manner. In other words, the display state of the display screen 50 switches between that shown in FIG. 11A and that shown in FIG. The control unit 13 enlarges the partial image P _6A or P _6B as appropriate so that the cut out partial image P _6A or P _6B is displayed using the entire display area PD ₁ .

  As described above, when the number of partial images to be enlarged is larger than the number of partial image display areas for a certain display target image, each partial image display area is used in a time-sharing manner. Partial images are displayed alternately. This facilitates confirmation of each person included in the display target image.

In addition, an example in which one entire image display area and one partial image display area are provided for one display target image has been described, but a plurality of partial image display areas are provided for one display target image. It is also possible. If two partial image display areas are provided for the display target image W ₆ , one partial image can be assigned to each partial image display area. In this case, the alternate display process of a plurality of partial images by time division becomes unnecessary.

  Note that the control unit 13 appropriately sets the number of display target images displayed simultaneously as a list in accordance with the total number of partial image display areas provided in the display screen 50. In addition, when all of the plurality of display target images that are to be displayed in a list simultaneously are not the enlargement target images, no partial image display area is provided in the display screen 50.

Further, the first threshold value S _TH1 or the second threshold value S _TH2 can be set to an arbitrary value, and for example, “S _W1 <S _TH1 <S _W2 <S _W3 ” is established depending on these values. The display target image W ₂ is not certified as an enlargement target image. The first threshold value S _TH1 or the second threshold value S _TH2 may be freely changed by an operation on the operation unit 17.

<< Third Example >>
Next, a third embodiment will be described. In the third embodiment, the display target images W _{1 to} W ₅ in FIG. ₁ and the display target image W ₆ in FIG. 5 are displayed as a list. Then, by using the same method as the second embodiment, among the display target image W ₁ to _W-6, and only the display target image W _1, W ₂ and W ₆ is certified as an enlarged target image.

FIG. 12 shows an example of area division of the display screen 50 in the thumbnail image reproduction mode according to the third embodiment. In FIG. 12, six entire image display areas WD _{11 to} WD ₁₆ are provided on the display screen 50. FIG. 13 shows a state in which each display target image is displayed as a list on the display screen 50 divided into regions as shown in FIG. 12 in the thumbnail image reproduction mode. Hereinafter, the entire image display area WD ₁₁ ~WD _16, abbreviated as display area WD ₁₁ ~WD ₁₆ respectively.

As shown in FIG. 13, the entire images of the display target images W _{1 to} W ₆ are displayed in the display areas WD _{11 to} WD ₁₆ (see also FIGS. 1 and 5). The display state of the display screen 50 shown in FIG. 13 is a display state at a certain moment, and the display state of the display screen 50 changes sequentially with time while depending on the presence or absence of the enlargement target image.

Focusing on the display area WD ₁₆ to display target image W ₆ as enlarged target image is displayed, explaining the transition state of the display (change state).

Figure 14 is a diagram showing a transition state of the display of the display area WD _16. The display image of the display area WD ₁₆ is displayed every time a predetermined time elapses. The image 101 in FIG. 14A, the image 102 in FIG. 14B, the image 103 in FIG. 14C, and the image in FIG. Transition is made in the order of the image 104 and the image 105 in FIG. 14E, and the image 101 is displayed again after a predetermined time has elapsed since the image 105 was displayed. Display state shown in FIG. 13 corresponds to the state where the image 101 is displayed in the display area WD _16. The partial image display areas PD _16B , PD _16C , PD _16D and PD _16E shown in FIGS. 14B to _14E are simply referred to as display areas PD _16B , PD _16C , PD _16D and PD _16E respectively. Abbreviated.

Image 101 is an entire image itself of the display target image W _6. When a certain period of time has elapsed after the display of the image 101, a display area PD _16B is provided in the display area WD ₁₆ , and the partial image P _6B of FIG. 10 is enlarged and displayed in the display area PD _16B . That is, the display image in the display area WD ₁₆ transitions from the image 101 to the image 102.

At the timing at which the image 102 is displayed in the display area WD _16, corresponding to the display area PD _16B, a part of the display target image W ₆ being will not be temporarily displayed. That is, the enlarged image of the partial image P _6B is displayed on the entire image of the display target image W ₆ . The same applies to the images 103 to 105.

When a certain time elapses after the display of the image 102, the display area PD _16C is provided in the display area WD ₁₆ , and the partial image P _6B of FIG. 10 is enlarged and displayed in the display area PD _16C . That is, the display image in the display area WD ₁₆ transitions from the image 102 to the image 103.
Subsequently, when a certain time further elapses, a display area PD _16D is provided in the display area WD ₁₆ and the partial image P _6A of FIG. 10 is enlarged and displayed in the display area PD _16D . That is, the display image in the display area WD ₁₆ transitions from the image 103 to the image 104.
Subsequently, when a certain time further elapses, a display area PD _16E is provided in the display area WD ₁₆ and the partial image P _6A of FIG. 10 is enlarged and displayed in the display area PD _16E . That is, the display image in the display area WD ₁₆ transitions from the image 104 to the image 105.

Since the number of faces included in the display target image W ₆ is two, the display image in the display area WD ₁₆ transitions to the image 101 after a predetermined time has elapsed after displaying the image 105, but the display target image W _If another face is included in ₆ , an enlarged display focusing on the other face is performed.

Control unit 13, so that partial image P _6B obtained by clipping processing is displayed using the entire display area PD _16B or PD _16C, enlarging the partial image P _6B appropriate. The size of the display area PD _16C on the display screen is larger than that of the display area PD _16B . That is, the control unit 13 increases the size of the partial image display area for displaying the partial image P _6B with the passage of time, and the partial image at the time of display is linked to the increase in size. Increase the magnification for P _6B image size. However, an upper limit is set for the size of the partial image display area in accordance with the size of the entire image display area. When the size of the partial image display area reaches the upper limit, the size of the partial image display area is reduced or the partial image display area is temporarily deleted.

The same applies to the partial image P _6A . That is, the control unit 13, so that partial image P _6A obtained by the clipping processing is displayed by using the entire display area PD _16D or PD _16E, enlarges the partial image P _6A appropriate. The size of the display area PD _16E on the display screen is larger than that of the display area PD _16D .

  If the reproduction method of the third embodiment is adopted, the same effect as that of the second embodiment can be obtained. Also, by changing the magnification of a partial image including a face with time, the user can check the state of the entire image and where the face is located without any additional operation. Therefore, it becomes easy to search for a desired image.

Were subjected to detailed description focuses on the display area WD _16, is made as similar display control is also the display area WD ₁₁ and WD ₁₂ display target image W ₁ and W ₂ of the enlarged target image is displayed.

  Further, in the above example, the entire partial image display area is within the entire image display area, but a part of the partial image display area may be located outside the entire image display area. That is, the entire partial image display area may overlap the entire image display area corresponding to the partial image display area, or only a part of the partial image display area may be included in the partial image display area. It may overlap with the corresponding entire image display area.

For example, the display area PD _16C in FIG. 14C may be replaced with a partial image display area PD _16F as shown in FIG. A part of the partial image display area PD _16F is located outside the display area (entire image display area) WD ₁₆ . When this replacement is performed, the partial image P _6B (see FIG. 10) is displayed in the partial image display area PD _{16F at the} timing when the image 103 in FIG. 14C is to be displayed.

<< 4th Example >>
Next, a fourth embodiment will be described. In the fourth embodiment, as in the first embodiment, the display target images W _{1 to} W ₅ in FIG. 1 are displayed as a list. Then, by using the same method as in the second embodiment, that is, the comparison process using the face size evaluation value and the first threshold value S _TH1 (or the second threshold value S _TH2 ) for each display target image including the face. It is assumed that only the display target images W ₁ and W ₂ among the display target images W _{1 to} W ₅ are recognized as the enlargement target images.

  When displaying a list of each display target image, the control unit 13 defines a region of interest in each enlargement target image. In each enlargement target image, the attention area moves in the enlargement target image with time. Then, the image in the moving attention area is enlarged and displayed on the display screen 50.

Since the processing for each enlargement target image is the same, the attention area will be described more specifically by paying attention to the display target image W ₁ that is one of the enlargement target images.

FIG. 16 (a), the show displayed images W ₁ respectively is that clearly the region of interest (b) and (c). Reference numeral 60 denotes a region of interest defined in the display target image W ₁ . As shown in FIGS. 16A, 16B, and 16C, the image size of the attention area 60 is smaller than the image size of the display target image W ₁ , for example, 1 / of the image size of the display target image W _1. 4 or less.

The attention area 60 moves in the display target image W ₁ so as to go from FIG. 16A to FIG. 16B and FIG. For example, the attention area 60 moves clockwise around the center of the display target image W ₁ along the vicinity of the end of the display target image W ₁ as time elapses. For this reason, the image in the attention area 60 changes every moment. The image in the attention area 60 that changes every moment is handled as a partial image of the display target image W ₁ that should be enlarged and displayed in the partial image display area when the thumbnail image reproduction mode is displayed as a list.

Note that the method of moving the attention area 60 is arbitrary. For example, the attention area 60 may be moved so as to scan the display target image W ₁ in the horizontal direction or the vertical direction.

As described above, when only the display target images W ₁ and W ₂ among the display target images W _{1 to} W ₅ are recognized as the enlargement target images, the display screen 50 in the thumbnail image playback mode is the second embodiment. Similarly to FIG. 8, the area is divided as shown in FIG. That is, display areas WD _{1 to} WD ₅ and display areas PD ₁ and PD ₂ are provided on the display screen 50. As described in the second embodiment, the display areas PD ₁ and PD ₂ and the display areas WD _{1 to} WD ₅ do not overlap each other. In addition, for the display target images W _{3 to} W ₅ that are not recognized as the enlargement target image, the partial image display area such as the display area PD ₁ is not defined, and the attention area is not defined.

Each of FIGS. 17A and 17B shows a state in which each display target image is displayed as a list on the display screen 50 divided into regions as shown in FIG. 8 in the thumbnail image reproduction mode. However, FIG. 17A shows the display contents of the display screen 50 at the first timing, and FIG. 17B shows the display contents of the display screen 50 at the second timing. Here, the first and second timings are different from each other, and the first and second timings correspond to FIGS. 16 (a) and 16 (c), respectively. Note that reference numeral 61 in FIGS. 17A and 17B represents a region of interest defined for the display target image W ₂ to be displayed in the display region WD ₂ .

At both the first and second timings, the entire images of the display target images W _{1 to} W ₅ are displayed in the display areas WD _{1 to} WD ₅ , respectively, and attention is paid to the display areas PD ₁ and PD ₂ , respectively. The enlarged images of the areas 60 and 61 are displayed. Since the attention area moves with time, the display images of the display areas PD ₁ and PD ₂ are different between FIGS. The control unit 13 cuts out the image of the attention area 60 that moves in the display target image W ₁ as time elapses, and displays the cut-out image so that the cut-out image is displayed using the entire display area PD _1. Enlarge as appropriate. Usually, since the image size of the attention area 60 is constant and the size of the display area PD ₁ is also constant, the magnification of the cut-out image is constant. The same applies to the attention area 61.

By adopting the display method of the fourth embodiment, the user can continuously observe local enlarged images while viewing each display target image as a whole. For this reason, although not always, the face is enlarged and displayed in a part of the image display area (PD ₁ or the like), and the person can be easily confirmed. Further, by providing the partial image display area only for the display target image including a relatively small face, it is possible to eliminate wasteful display space consumption.

Further, since the position of the face in the display target image can be known by referring to the face detection result of the face detection unit 14, the vicinity of the portion where the face is located may be displayed in a focused manner. That is, for example, if the face on the right half of the display target image W ₁ is located to position the region of interest 60 only on the right half of the display target image W _1. Again, the region of interest 60 is moved with the right half of the display target image W ₁ time.

<< 5th Example >>
Next, a fifth embodiment will be described. In the fifth embodiment, the display target images W _{1 to} W ₅ in FIG. ₁ and the display target image W ₆ in FIG. 5 are displayed as a list. Then, by using the same method as in the second embodiment, that is, the comparison process using the face size evaluation value and the first threshold value S _TH1 (or the second threshold value S _TH2 ) for each display target image including the face. The image to be enlarged is certified through the. Now, it is assumed that only the display target image W ₁ among the display target images W _{1 to} W ₆ is recognized as the enlargement target image.

In this case, as in the fourth embodiment, a region of interest is defined for the display target image W ₁ . The attention area moves in the display target image as in the fourth embodiment. That is, the display target image W _1, FIG. 16 (a), the region of interest 60 is defined as shown in (b) and (c), the region of interest 60 is moved with time the display object image W ₁ . For this reason, the image in the attention area 60 changes every moment. As in the fourth embodiment, the image in the attention area 60 that changes every moment is a part of the display target image W ₁ that should be enlarged and displayed in the partial image display area when the thumbnail image playback mode list is displayed. Treated as an image.

  In the fifth embodiment, unlike the fourth embodiment, a partial image display area for enlarging and displaying an image in the attention area 60 is provided in the entire image display area.

The area dividing method of the display screen 50 in the thumbnail image reproduction mode according to the fifth embodiment is the same as that of the third embodiment. That is, in the thumbnail image playback mode, the display screen 50 is divided into regions as shown in FIG. 12, and display regions (entire image display regions) WD _{11 to} WD ₁₆ are provided on the display screen 50. Then, display target images W _{1 to} W ₆ are displayed in the display areas WD _{11 to} WD ₁₆ , respectively.

However, information displayed in the display area WD ₁₁ corresponding to the display target image W ₁ which has been certified as enlargement target image is changed with time.

FIGS. 18A, 18 </ b> B, and 18 </ b> C show the display content of the display area WD ₁₁ that changes with the movement to the attention area 60. Image 111 shown in FIG. 18 (a), when the region of interest 60 is in the position shown in FIG. 16 (a) (hereinafter, referred to as timing T1) represents a display image of the display area WD ₁₁ of FIG. 18 (b) image 112 shown when the attention area 60 is in the position shown in FIG. 16 (b) (hereinafter, referred to as timing T2) represents a display image of the display area WD ₁₁ of the image 113 shown in FIG. 18 (c) of interest when the region 60 is in the position shown in FIG. 16 (c) (hereinafter referred to as timing T3) representing a display image of the display area WD ₁₁ of.

The display area (the entire image display region) WD _11, the image display region PD _11A are provided partially at the timing T1, the image display region PD _11B are provided in part in the timing T2, a part image display at timing T3 region PD _11C is provided. In the partial image display areas PD _11A , PD _11B, and PD _11C , an image in the attention area 60 at the timing T1, an image in the attention area 60 at the timing T2, and an image in the attention area 60 at the timing T3 are enlarged and displayed, respectively. Is done. The position of the partial image display area in the display area WD ₁₁ changes in conjunction with the change in the position of the attention area 60 in the display target image W ₁ .

For the purpose of facilitating the observation of the entire image of the display target image W ₁ , apart from the timings T1 to T3, a timing at which a part of the image display area does not exist (in other words, a timing at which the attention area does not exist) is provided. It doesn't matter.

At timing T1, a part of the display target image W ₁ corresponding to the partial image display area PD _11A is temporarily not displayed. That is, an enlarged image of the image in the attention area 60 is displayed on the entire image of the display target image W ₁ . The same applies to the timings T2 and T3.

The control unit 13 cuts out the image of the attention area 60 that moves in the display target image W ₁ as time elapses, and the cut image is displayed using the entire partial image display area (PD _11A or the like). Then, the clipped image is enlarged as appropriate. Usually, since the image size of the attention area 60 is constant and the size of the partial image display area (PD _11A or the like) is also constant, the magnification of the cut-out image is constant.

By adopting the display method of the fifth embodiment, the user can continuously observe a local enlarged image while viewing each display target image as a whole. For this reason, although not always, the face is enlarged and displayed in a part of the image display area (PD ₁ or the like), and the person can be easily confirmed. If a partial image display area is provided for a display target image that does not require enlarged display, the confirmation of the content of the display target image is prevented. Considering this, a partial image display area is provided only for the display target image including a relatively small face.

Further, since the position of the face in the display target image can be known by referring to the face detection result of the face detection unit 14, the vicinity of the portion where the face is located may be displayed in a focused manner. That is, for example, if the face on the right half of the display target image W ₁ is located to position the region of interest 60 only on the right half of the display target image W _1. Again, the region of interest 60 is moved with the right half of the display target image W ₁ time.

  In the above example, the entire partial image display area is within the entire image display area. However, as described in the third embodiment, a part of the partial image display area is the entire image display area. It does not matter if it is located outside. That is, the entire partial image display area may overlap the entire image display area corresponding to the partial image display area, or only a part of the partial image display area may be included in the partial image display area. It may overlap with the corresponding entire image display area.

<< Deformation, etc. >>
As modifications or annotations of the above-described embodiment, notes 1 to 4 are described below. The contents described in each comment can be arbitrarily combined as long as there is no contradiction.

[Note 1]
In the above-described embodiment, the face is detected from the captured image, but the object detected from the captured image may be other than the face. For example, the detected object may be the upper body of a person including a face.

  Various methods are known as methods for detecting the upper body of a person from a photographed image, and any method can be employed in the present invention. The upper body of the person may be detected using face detection based on the face, or may be detected from the outline of the object (person's silhouette) in the captured image.

[Note 2]
In addition, the specific numerical values shown in the above description are merely examples, and can naturally be changed to various numerical values.

[Note 3]
In addition, the imaging apparatus 1 in FIG. 1 can be realized by hardware or a combination of hardware and software. In particular, the arithmetic processing necessary to perform display control in the thumbnail image playback mode can be realized by software or a combination of hardware and software.

  When the imaging apparatus 1 is configured using software, a block diagram of a part realized by software represents a functional block diagram of the part. Further, all or part of the arithmetic processing necessary for performing the display control is described as a program, and the arithmetic processing is executed on a program execution device (for example, a computer), whereby all or part of the arithmetic processing is performed. May be realized.

[Note 4]
The face detection unit 14 in FIG. 1 functions as an object detection unit that detects a predetermined type of object from a captured image. The face detection unit 14 detects a human face as a predetermined type of object. As described above, the predetermined type of object detected by the object detection unit may be a face other than the face, or the upper body of a person.

  The control unit 13 in FIG. 1 functions as a display control unit. In the above-described embodiment, an image reproducing device is formed by the control unit 13 that functions as a display control unit and the display unit 15 that functions as a display unit. The image reproduction device includes a face detection unit 14 that functions as an object detection unit as necessary. Further, it can be considered that the storage medium 16 is included in the image reproducing apparatus.

  In addition, the function of the image reproduction device formed by the components of the imaging device 1 can be realized by another device (for example, a computer) having the same function. In this case, the other device functions as an image reproducing device.

1 is an overall block diagram of an imaging apparatus according to an embodiment of the present invention. It is an internal block diagram of the imaging part of FIG. It is a figure which shows the five display target images which should be displayed as a list on the display part 15 of FIG. It is a figure which shows the list display screen based on 1st Example of this invention. It is a figure which shows the other display target image which should be displayed as a list on the display part 15 of FIG. 1, and is a display target image containing a some face. 6 is a flowchart illustrating an operation procedure of the imaging apparatus in FIG. 1 in a thumbnail image reproduction mode according to the first embodiment of the present invention. FIG. 4 is a diagram illustrating a partial image including a face in the display target image of FIG. 3. It is a figure showing the area | region division method of the display screen of the display part of FIG. 1 based on the 2nd (or 4th) Example of this invention. It is a figure which shows the list display screen based on 2nd Example of this invention. It is a figure showing the partial image containing the face in the display object image of FIG. It is a figure which shows the other list display screen based on 2nd Example of this invention. It is a figure showing the area | region division method of the display screen of the display part of FIG. 1 based on the 3rd (or 5th) Example of this invention. It is a figure which shows the list display screen based on 3rd Example of this invention. It is a figure which shows the transition state of a display in one whole image display area of FIG. It is a figure which shows the modification of a display in one whole image display area of FIG. It is a figure which shows the mode of the movement of an attention area based on the 4th (or 5th) Example of this invention. It is a figure which shows the list display screen based on 4th Example of this invention. It is a figure which shows the transition state of the display in a certain one whole image display area based on 5th Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Imaging device 11 Imaging part 12 AFE
DESCRIPTION OF SYMBOLS 13 Control part 14 Face detection part 15 Display part 16 Recording medium 17 Operation part 33 Image sensor

Claims (8)

Display means capable of displaying a plurality of display target images side by side on a display screen;
Display control means for controlling the display content of the display means;
An object detection means for detecting a predetermined type of object from each display target image,
When the display control unit displays the plurality of display target images side by side,
When the detected object is an enlargement target object whose size is smaller than a predetermined first threshold, the display size of the display target image from which the enlargement target object is detected is larger than a predetermined reference display size. And then displaying the plurality of display target images side by side . Display means capable of displaying a plurality of display target images side by side on a display screen;
Display control means for controlling the display content of the display means;
An object detection means for detecting a predetermined type of object from each display target image,
When the display control unit displays the plurality of display target images side by side,
When the detected object is an enlargement target object whose size is smaller than a predetermined first threshold, a partial image including the enlargement target object in the display target image from which the enlargement target object is detected is displayed. An image reproducing apparatus that performs enlarged display . In the display target image in which the object is detected, the object is included in n (n is an integer of 2 or more), and the object to be expanded is included in m (m is an integer of 1 or more, n ≧ m). If
3. The image reproduction apparatus according to claim 2, wherein the display control unit enlarges and displays a partial image including the m objects to be enlarged in a time division manner. Display means capable of displaying a plurality of display target images side by side on a display screen;
Display control means for controlling the display content of the display means;
An object detection means for detecting a predetermined type of object from each display target image,
When the display control unit displays the plurality of display target images side by side,
When the detected object is an enlargement target object whose size is smaller than a predetermined first threshold, the attention area that moves with time in the display target image in which the enlargement target object is detected And an enlarged image of the image in the region of interest . An image reproduction device according to any one of claims 1 to 4,
Imaging means for generating a photographed image by photographing;
Storage means for storing a plurality of images including the photographed image,
The display target image for the image playback device is selected from the plurality of images.
An imaging apparatus characterized by that. In an image reproduction method for displaying a plurality of display target images side by side on a display screen,
An object detection step for detecting a predetermined type of object from each display target image;
When displaying the plurality of display target images side by side,
When the detected object is an enlargement target object whose size is smaller than a predetermined first threshold, the display size of the display target image from which the enlargement target object is detected is larger than a predetermined reference display size. And displaying the plurality of display target images side by side;
An image reproduction method comprising: In an image reproduction method for displaying a plurality of display target images side by side on a display screen,
An object detection step for detecting a predetermined type of object from each display target image;
When displaying the plurality of display target images side by side,
When the detected object is an enlargement target object whose size is smaller than a predetermined first threshold, a partial image including the enlargement target object in the display target image from which the enlargement target object is detected is displayed. , A step to zoom in,
An image reproduction method comprising: In an image reproduction method for displaying a plurality of display target images side by side on a display screen,
An object detection step for detecting a predetermined type of object from each display target image;
When displaying the plurality of display target images side by side,
When the detected object is an enlargement target object whose size is smaller than a predetermined first threshold, the attention area that moves with time in the display target image in which the enlargement target object is detected And a step of enlarging and displaying an image in the region of interest;
An image reproduction method comprising:

Images