JP4540581B2 - Image display device and image recording device - Google Patents

Description

  The present invention relates to an image display device and an image recording device that capture a still image while displaying a moving image and record the captured still image on a recording medium such as an HD, a DVD, or a memory card.

In television broadcasting or the like, for example, there is a desire to record still images such as recipe contents in cooking programs, destinations for viewer presents, or shooting scenes of soccer players. Therefore, in recent years, an image recording apparatus capable of recording the still image as well as a moving image on a recording medium such as a PC card, HD, and DVD has been provided. For example, in Patent Document 1, a small screen called a child screen is provided on a part of the display screen, a moving image is displayed on the main screen, and a still image recorded on a recording medium is compressed and displayed on the child screen.
JP-A-9-224213

  In the television receiver of Patent Document 1, when an instruction to capture a still image from a moving image is issued, recording on a recording medium is executed at that time, so that an image captured from a moving image by a user is recorded as a still image as it is. However, there is a case where it is desired to record the captured still image by performing an enlargement process or the like, but the technique of Patent Document 1 cannot do so. For this reason, once a still image is taken into the recording medium, enlargement processing or the like has to be performed again, which is cumbersome. In addition, the recording medium must be recorded with a single-size still image that is not originally intended to be recorded. This will waste precious storage capacity.

  In view of such circumstances, the present invention provides an image display device and an image recording device that can display a still image required for confirmation by enlarging or reducing the captured still image and displaying the captured still image. It is intended to do.

The present invention provides a moving image display screen for displaying a moving image, or a screen display processing means for displaying a moving image display screen and a still image display screen for displaying a captured still image, and a user for instructing to capture a still image, An operation means for operating either the designation of the display position of the cursor indicating the enlargement / reduction range of the image and the setting of the magnification of the still image within the range indicated by the cursor; Still image capturing means for capturing a still image, cursor display processing means for displaying the cursor as designated by the operating means, and the range of the cursor is displayed on the still image display screen according to the operation of the operating means. An enlarged / reduced display processing means for performing an enlarged / reduced display by adjusting a display position and / or a magnification thereof when
When the still image is captured, the screen display processing unit displays both the moving image display screen and the still image display screen, and the cursor display processing unit displays the cursor on the still image display screen according to the instruction of the operation unit. The enlargement / reduction display processing means performs enlargement / reduction processing at a set magnification, then the cursor display processing means displays the cursor on the moving image display screen, and the enlargement / reduction display processing means displays on the moving image display screen. An image display device characterized in that the range of the still image display screen corresponding to the range indicated by the cursor is enlarged or reduced at the magnification .

  The still image display screen information is composed of the moving image display screen and a square pattern or frame displayed so as to overlap the moving image display screen.

  Further, in the multi-screen display processing means, the moving image display screen and the still image display screen are configured in a display format of P-in-Pe (Picture in Picture) or P-Out-Pe (Picture out Picture). Features.

  Further, the moving image display screen and the still image display screen which are configured by the multi-screen display processing means are displayed with the same area or aspect ratio.

  Further, the present invention is characterized in that it has a still image update display means for updating and displaying a partial area of the enlarged still image according to a subsequent instruction.

Further, when the still image to be displayed by the still image updating unit is updated and displayed, the still image displayed on the still image display screen is adjusted by the enlargement / reduction display processing unit before the updating process. The update display process is performed at the displayed position and / or magnification.

  Further, the present invention is characterized in that in the image recording device constituting the image display device, there is provided storage means for storing a partial area of the still image on which the still image display is controlled.

According to the image display device of the present invention, a still screen can be displayed at a desired magnification with respect to the captured still image. Therefore, the user selects a still image area that the user wants to view from the captured still images and selects the user. It is easy to view the screen according to your preference.
In addition, as a result of viewing the captured still image together with the moving image by image display processing such as multi-screen display processing, as much as possible still images that had to be displayed once scaled are displayed on two screens, etc. It becomes possible to view a still image at a scale ratio close to the state before the display process.

  Further, according to the image display device of the present invention, the display control means displays the still image display screen information, and the relative position of the video displayed on the still image display screen with a predetermined magnification relative to the entire still image is displayed. Can be easily identified, and by displaying this frame on the video display screen, it is possible to easily recognize which area of the entire captured still image is being viewed. become.

  Further, according to the image display device of the present invention, as the still image display screen information, a square pattern or frame is displayed so as to be superimposed on the moving image display screen, so that the image displayed on the still image display screen at a predetermined magnification is displayed. It is not necessary to provide extra information for easily identifying the relative position with respect to the entire still image in another area on the screen, and an area surrounded by a frame or the like in the currently displayed moving image It becomes easy to relatively compare the content with the still image subjected to the display process.

  Further, according to the image display device of the present invention, the moving image display screen and the still image display screen are displayed in the P-in-Pe or P-out-Pe display format, or in the same area or aspect ratio. Therefore, it becomes easy to make a relative comparison between a moving image and a still image at the same time.

  Further, according to the image display device of the present invention, a partial area of the enlarged still image is updated and displayed according to a subsequent instruction, so that the still image obtained by enlarging the moving image currently being broadcast is displayed. It is possible to immediately compare and determine whether a partial area of the image is the best shot, and it is possible to select an optimum still image while viewing it.

  According to the image display device of the present invention, when the still image is updated and displayed, the still image displayed on the still image display screen is adjusted by the still image display control means before the update processing. Since the update display process is performed with the display position and / or magnification, the best frame size or position is newly selected from the still images captured last time among the still images captured again by the above update process. In addition, it becomes possible to update the frame size or position of the still image intended by the user before the update process, and the adjustment operation process after the update becomes extremely easy.

  In addition, according to the image recording apparatus of the present invention, by providing a storage unit for storing a partial region of a still image that is controlled to display a still image, a specific region of a video that is accurately selected by a user or the like. Thus, only the information that the user wants to recognize can be accurately stored, and the memory can be used with good efficiency, so that so-called wasteful shooting is reduced.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of a liquid crystal television receiver which is an embodiment of an image recording apparatus according to the present invention. As shown in FIG. 1, the present embodiment includes an antenna 1 that receives a television broadcast signal, and a receiver 2 that detects an image of the television broadcast signal received by the antenna 1 and outputs an image signal and an audio signal. A selection unit 3 for selecting and switching input / output image signals, a still image capturing unit 4 for capturing still images from moving image signals, and converting the input image signals into R, G, and B signals and outputting them An image output unit 5 for displaying, a liquid crystal display unit 6 for displaying based on the RGB signal, an audio output unit 7 for processing so that the input audio signal can be output as audio, and an audio based on the processed audio signal Communication is performed with the output speaker 8, a card type storage medium 9 such as a memory card, a slot portion 10 in which the card type storage medium 9 is inserted, and a card type storage medium 9 inserted in the slot portion 10. Receiving the infrared signal from the control unit 11, the central control unit 12 for controlling each unit, the operation unit 13 for the user to input various instructions to the central control unit 12, and the R / C (remote control) operation unit 15. The R / C light receiving unit 14 is configured.

  Here, the selection unit 3 has a function of selecting an image on the card recording medium 9 or an image on the receiving unit 2 as an image signal to be displayed on the display unit 6 or recorded on the card recording medium 9. Is also called a selector, and some are realized as an integrated circuit IC. In addition, the image on the card recording medium 9 includes not only a line unilaterally output to the selection unit 3 but also a line for causing an input line for writing the image of the reception unit 2 to function.

  The still image capturing unit 4 holds the captured still image in a frame memory (not shown). The display unit 6 is not limited to the liquid crystal in the present embodiment, and may be a CRT or a plasma display.

  As shown in FIG. 2, the R / C operation unit 15 transmits the input operation selected by the user to the liquid crystal television using infrared rays. FIG. 2 shows an example of the appearance of the R / C operation unit 15. As operation keys, the power key 21, the numeric key 22, the channel sequential selection key 23, the volume key 24, the operation return key 25, and the operation are finished. An end key 26 for determining the operation, a cursor key 28 for moving the cursor in the horizontal and vertical directions of the display screen, a still image key 29 for capturing a still image, and a zoom key 30 for enlarging the display image.

  As will be described in detail later, still image display operation means for adjusting the display position and / or the magnification of the still image displayed on the still image display screen with respect to the entire still image by the cursor key 28, the still image key 29, and the zoom key 30. It is. The enlargement / reduction display processing unit 5c (still image display control means) adjusts the display position of the still image displayed on the still image display screen and / or its magnification by the still image display operation means. It is.

Next, the operation of the liquid crystal television receiver according to the present embodiment will be described.
The receiving unit 2 of the liquid crystal television receiver receives a control instruction from the central control unit 12 for the channel selected by the user from the operation unit 13 or the R / C operation unit 15, and is received by the antenna 1. The John broadcast signal is detected, and the image signal is output to the selection unit 3 and the audio signal is output to the audio output unit 7. When displaying a television image on the display unit 6 according to a user instruction from the operation unit 13, the selection unit 3 outputs an image signal to the image output unit 5 and the still image capturing unit 4 under the control of the central control unit 12. .

  The image output unit 5 is a full-screen display processing unit 5a that displays an image on one screen as a whole, a two-split processing unit 5b that displays an image by splitting it into two screens, and an enlargement / reduction display processing unit 5c that displays an image by scaling it A cursor display processing unit (display control means) 5d for displaying a square pattern or frame-shaped cursor for designating a range to be enlarged or reduced is provided. Normally, the entire screen display processing unit 5a displays an image on the entire screen. When the user wants to capture a still image from a moving image and presses the still image key 30 of the operation unit 13, the process is switched to the two-division processing unit 5 b of the image output unit 5, and the screen of the display unit 6 is displayed. The screen is divided into two screens of the same size (the same area and the same aspect ratio), the moving image is displayed with the left screen as the moving image display screen, and the captured still image is displayed with the right screen as the still image display screen. At the same time, the still image capturing unit 4 captures a still image for one frame from the moving image based on a control signal from the central control unit 12 and stores it in a frame memory (not shown). Then, the image signal output from the receiving unit 2 via the selection unit 3 is taken into the frame memory as still image data, and this image signal is output to the image output unit 5.

  The user can simultaneously check the moving image portion and the still image portion by the two-divided screen display, further display the cursor, and enlarge / reduce the image in the region by the enlargement / reduction display processing unit 5c. In this way, by performing such processing, it is possible to finally confirm the display of a still image that the user thinks is best at a desired size. Therefore, the user can record on the card-type recording medium 9 a still image of a size that is originally intended to be recorded.

  Next, a process for capturing a still image will be described in detail. FIG. 3 is a flowchart showing a processing procedure when a still image is captured, and FIG. 4 is a diagram for explaining an image on the display unit when this still image recording process is performed.

  As shown in FIG. 4A, a scene in which the ball 31 falls is displayed on one screen. This image may be a moving image stored in the card-type recording medium 9 or a moving image received by the receiving unit 2. Any image data is selected by the selection unit 3 and sent to the image output unit 5. In the present embodiment, the received television broadcast image is displayed. An image of the ball 31 falling downward is displayed on the entire surface of the screen of the display unit 6 by the entire surface display processing unit 5a.

  When the still image key 29 of the R / C operation unit 15 is pressed, a control signal enters the central control unit 12 via the R / C light receiving unit 14. The central control unit 12 confirms that the still image key 30 has been pressed (step S1), and the still image capturing unit 4 detects a still image at the moment when the still image key 30 is pressed from the moving image of the ball falling. The still image data is sent to the image output unit 5. Then, as shown in FIG. 4B, the two-divided display processing unit 5b of the image output unit 5 performs scaling of the moving image of the ball drop and the captured still image, and displays a two-screen display of left and right equally divided screens. The video is displayed on the left video display screen and the captured still image is displayed on the right video display screen. Further, blanking processing is performed on the upper and lower margins. At the same time, as an initial value setting, a magnification index N indicating a magnification is set to “N = 1” (step S2). At this time, it is still image display screen information for recognizing the display position and / or magnification of the still image displayed on the still image display screen with respect to the entire still image. The cursor 32 is displayed on the right still image display screen by the cursor display processing unit 5d. In the cursor, the area in the cursor is an enlarged area. The cursor 28 can be moved by the cursor key 28 of the R / C operation unit 15.

Next, the central control unit 12 confirms that the user presses one of the operation keys of the R / C operation unit 15 (step S3).
First, it is assumed that the user presses the return key 25. The central control unit 12 confirms that the return key 25 has been pressed (step S4), and, as shown in FIG. 4E, the original one-screen display is displayed on the full-screen display processing unit 5a of the image output unit 5. Return to the state (step S5).

  Assume that the user presses the zoom key 30. The central control unit 12 confirms that the zoom key 30 has been pressed (step S6), and sets the magnification index N = N + 1. In step S7, the enlargement / reduction display processing unit 5c performs zoom processing of N times on the right still screen. Further, as shown in FIG. 4C, the cursor display processing unit 5d moves and displays the cursor 32 representing the zoom display area of the still image in the moving image on the left screen (step S6). In this way, the user can confirm the enlarged still image without being obstructed by the cursor on the enlarged still screen.

  A limit value is set in advance in the magnification index N, and the central control unit 12 confirms whether the magnification index N exceeds the limit value (step S8). When the magnification index N exceeds the limit value, N = 1 is set, the still image on the right still screen is reduced to the same magnification display by the enlargement / reduction display processing unit 5c, and the cursor 32 is also displayed by the cursor display processing unit 5d. Erasing is performed (step S9).

Assume that the user presses the cursor key 28 in the vertical direction (or the horizontal direction). The central control unit 12 confirms an instruction to move the cursor in the vertical direction (or horizontal direction) (step S10), and as shown in FIG. 4D, the cursor display processing unit 5d displays the cursor 32 on the left moving image screen. The move process. Thus, the still image display screen information becomes image information of the cursor and the moving image screen. The enlargement / reduction display processing unit 5c zooms a part of the still image corresponding to the position of the moved cursor by N times to update and display the still image on the right screen (step S11).
In this way, the still image area corresponding to the position of the cursor displayed on the left moving image display screen is displayed on the right still screen, so that the user can confirm the moving still image area to be displayed without being blocked by the cursor. .

  The cursor display processing unit 5d confirms whether or not the cursor is located at a corner where it cannot move in the direction of the user operation (step S12). Is not performed (step S13).

  Assume that the user presses the enter key 27. The central control unit 12 confirms that the determination key 27 has been pressed and an operation for recording a still image has been performed (step S14), and still image data at the set magnification, cursor position, and region is captured. The selection unit 3 selects the card control unit 11 and transmits still image data. Then, a still image is recorded on the card type recording medium 9 (step S15).

  In this way, since it is possible to store the video area of the specific area among the videos that are accurately selected by the user or the like, it is possible to accurately store only the information that the user wants to recognize. In addition, the memory can be used with good efficiency and so-called wasteful shooting is reduced.

  Thus, when steps S9, S13, and S15 are completed, the process returns to step S3 and waits for the next key operation. When step S5 is completed, the process returns to step S1 to wait for the next operation of the stationary key 29.

  It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention. In this embodiment, a two-split screen display is performed. However, a multi-screen display of two or more screens may be used, and a moving image display screen and a still image display screen may be displayed in a picture in picture or picture in picture. You may display in the display format of P out P (Picture out Picture). Although the enlargement process is performed within the cursor area, a reduction process may be performed. In this case, for example, a reduction key is provided in the R / C operation unit 15 and reduction processing is performed when the user presses it.

It is a block diagram which shows the structure of the liquid crystal television receiver which is one Embodiment of the image recording device which concerns on this invention. It is an external view which shows the example of the external appearance of a R / C operation part. It is a flowchart which shows the process sequence in the case of capturing a still image. It is a figure explaining the operation | movement of a display part in the case of performing this still image recording process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Antenna 2 Receiving part 3 Selection part 4 Still image taking-in part 5 Image output part 5a Whole display process part 5b Two split display process part (multi-screen display process means)
5c Enlargement / reduction display processing unit (still image display control means)
5d Cursor display processing unit (display control means)
6 Display unit 7 Audio output unit 8 Speaker 9 Card type recording medium 10 Slot unit 11 Card control unit 12 Central control unit 13 Operation unit 14 R / C light receiving unit 15 R / C operation unit (still image display operation means)

Claims (7)

A screen display processing means for displaying a video display screen for displaying a video, or a video display screen and a still image display screen for displaying a captured still image;
An operation means for causing a user to operate either one of a capture instruction of a still image, a designation of a display position of a cursor indicating an enlargement / reduction range of the captured still image, and a setting of a magnification of a still image in the range indicated by the cursor;
Still image capturing means for capturing a still image from a moving image according to an instruction for capturing a still image from the moving image by the operation means ;
Cursor display processing means for displaying the cursor according to the designation of the operation means;
An enlargement / reduction display processing means for adjusting the display position and / or the magnification when the range of the cursor is displayed on the still image display screen according to the operation of the operation means,
Equipped with a,
When the still image is captured, the screen display processing means displays both the moving image display screen and the still image display screen,
The cursor display processing means displays a cursor on a still image display screen according to an instruction from the operation means, and the enlargement / reduction display processing means performs enlargement / reduction processing at a set magnification,
Thereafter, the cursor display processing means displays the cursor on the moving image display screen,
An image display apparatus characterized in that the enlargement / reduction display processing means enlarges / reduces the range of the still image display screen corresponding to the range indicated by the cursor displayed on the moving image display screen at the magnification . The image display apparatus according to claim 1 , wherein the cursor includes a square pattern or a frame. 3. The image according to claim 1, wherein in the multi-screen display processing means, the moving image display screen and the still image display screen are configured in a P-in-Pe or P-out-Pe display format. Display device. The moving picture display screen and the still image display screen is pre-outs surface display processing means constituting, according to any one of claims 1 to 3, characterized in that it has to be displayed in the same area or aspect ratio Image display device. The image display according to a partial region of the enlarged still image, in any one of claims 1 to 4, characterized in that had a still image updating display means for displaying updated by subsequent instructions apparatus. When a still image to be displayed by the still image updating unit is subjected to update display processing, the still image displayed on the still image display screen is adjusted by the enlargement / reduction display processing unit before the update processing. The image display apparatus according to claim 5 , wherein the update display process is performed at a position and / or a magnification. In the image recording device which comprises the image display apparatus in any one of Claims 1 thru | or 6 ,
An image recording apparatus comprising storage means for storing a partial area of the still image whose display is controlled.

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