JP2009296397A - Mobile terminal, method for automatically setting time display attribute, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a user to effectively change an image of a waiting screen without any operation by saving the labor for manually setting a display position and a size of a time display section, respectively, when changing the image to be displayed as the waiting screen. <P>SOLUTION: A cellular phone includes: a random selection means for randomly selecting an image to be displayed as a waiting screen; a face detecting means for detecting a partial image of a face from the image selected by the random selection means; and a position/size determining means for determining a display position and a size of a time display section so as not to overlap the partial image of the face detected by the face detecting means. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a portable terminal that automatically sets the display position and size of a time display unit, a time display attribute automatic setting method, and a time display attribute automatic setting program.

  When the user displays an arbitrary image as the standby screen of the mobile phone, the clock display on the standby screen may overlap an important part of the image. In particular, when the selected image is a person image, it is desirable to avoid the clock overlapping the face portion.

  As a method for preventing the clock display from overlapping an important part, for example, Patent Document 1 describes a method in which the user can freely set the display position and the size of the clock for each selected image.

Patent Document 2 describes a method that can detect a region of interest by analyzing image data of a target image, and display a character string superimposed on the target image while avoiding the automatically detected region of interest. Has been.
JP2003-008694 (paragraphs 0009-0011) JP-A-2005-159850 (paragraphs 0040-0043)

  In the method described in Patent Document 1, the user can freely set the display position and size of the watch. However, in the method described in Patent Document 1, the user must manually reset the display position and size of the clock each time the image displayed as the standby screen is changed. Therefore, it takes time for the user.

  Further, in the method described in Patent Document 2, it is possible to display a character string superimposed on the target image while avoiding the attention area detected from the target image. However, in the method described in Patent Document 2, the user must perform an operation of selecting a target image, and it takes time to change the standby screen.

  Therefore, the present invention saves the trouble of manually setting the display position and size of the clock when changing the image displayed as the standby screen, and enables the standby screen image to be effectively operated without user operation. It is an object of the present invention to provide a portable terminal, a time display attribute automatic setting method, and a time display attribute automatic setting program that can be changed automatically.

  A portable terminal according to the present invention includes a random selection unit that randomly selects an image to be displayed as a standby screen, a face detection unit that detects a partial image of a face from images selected by the random selection unit, and a face detection unit that detects And a position / size determining means for determining the display position and size of the time display unit so as not to overlap the partial image of the face.

  A time display attribute automatic setting method according to the present invention includes a random selection step of randomly selecting an image to be displayed as a standby screen of a mobile terminal, a face detection step of detecting a partial image of a face from the selected image, and A position / size determining step for determining the display position and size of the time display unit so as not to overlap the partial image of the face.

  The time display attribute automatic setting program according to the present invention includes a random selection process for randomly selecting an image to be displayed as a standby screen of a mobile terminal on a computer, and a face detection process for detecting a partial image of a face from the selected image. And a position / size determination process for determining the display position and size of the time display unit so as not to overlap with the detected partial image of the face.

  According to the present invention, when changing the image to be displayed as the standby screen, it is possible to save the trouble of manually setting the display position and size of the time display unit, and the standby screen image can be displayed without the user's operation. Can be changed effectively.

Embodiment 1. FIG.
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an example of the configuration of a mobile terminal according to the present invention. As illustrated in FIG. 1, the mobile terminal 100 includes a key input unit 101, a display unit 102, a wireless unit 103, an antenna unit 104, a control unit 105, and a storage unit 106. In the present embodiment, the mobile terminal is assumed to be a mobile phone. Note that the mobile terminal is not limited to a mobile phone, and may be, for example, a PHS terminal.

  Specifically, the key input unit 101 is realized by an input device such as a numeric keypad, a scroll key, a cross key, and an enter key, and has a function of inputting various types of information according to a user operation. Specifically, the display unit 102 is realized by a display device such as an LDC and has a function of displaying a standby screen, a setting screen, and the like.

  The wireless unit 103 has a function of performing encoding and decoding of wireless data transmitted / received via the antenna unit 104. The antenna unit 104 has a function of transmitting and receiving wireless data as a radio signal.

  Specifically, the control unit 105 is configured by a CPU or the like that operates according to a program. The control unit 105 includes functions for performing face detection processing for detecting a face from an image, processing for setting a display position and size of a time display unit (hereinafter referred to as a clock), and the like. In addition, the control unit 105 has a function of controlling each of the components 101 to 106 included in the mobile terminal 100. Specifically, the storage unit 106 is realized by a storage device such as a memory, and stores images, set information, and the like.

  FIG. 2 is a functional block diagram illustrating an example of a functional configuration of the mobile terminal illustrated in FIG. As shown in FIG. 2, the portable terminal 100 includes an image storage unit 111, a random selection unit 112, a face detection unit 113, a position / size calculation unit 114, a position / size storage unit 115, a position / size determination unit 116, and an image. Display means 117 is included.

  Specifically, the image storage unit 111 is realized by the storage unit 106. The image storage unit 111 stores image data used for a standby screen or the like.

  Specifically, the random selection unit 112 is realized by the control unit 105. The random selection unit 112 has a function of automatically selecting image data to be used as a standby screen randomly from the image data stored in the image storage unit 111.

  Specifically, the face detection unit 113 is realized by the control unit 105. The face detection unit 113 has a function of detecting a partial image of a face from a target image. For example, the face detection unit 113 obtains a feature amount of each pixel in the target image, and detects a partial image of the face based on the feature amount difference.

  Specifically, the position / size calculating unit 114 is realized by the control unit 105. The position / size calculating unit 114 has a function of calculating position and size values for displaying a clock so as not to overlap the partial face image detected by the face detecting unit 113.

  Specifically, the position / size storage unit 115 is realized by the storage unit 106. The position / size storage unit 115 stores information on the position and size of the clock displayed in accordance with the image on the standby screen (for example, the coordinates of the display position and the default values of the vertical and horizontal size values). .

  Specifically, the position / size determining unit 116 is realized by the control unit 105 and the storage unit 106. The position / size determining unit 116 has a function of determining the display position and size of the clock based on the position and size values calculated by the position / size calculating unit 114 when the face detecting unit 113 detects a face. Prepare. In addition, when the face detection unit 113 cannot detect the face, the position / size determination unit 116 determines the default position and size of the clock set in advance as the display position and size of the clock. It has a function.

  Specifically, the image display unit 117 is realized by the display unit 102 and the control unit 105. The image display unit 117 has a function of displaying on the display unit 102 the image selected by the random selection unit 112 and the clock set based on the position and size values determined by the position / size determination unit 116.

  Next, the operation will be described. FIG. 3 is an explanatory diagram showing an example of clock display attribute automatic setting by face detection. As illustrated in FIG. 3, the mobile terminal 100 detects a face portion from the target image by face detection processing. Then, the mobile terminal 100 automatically sets the position and size of the clock so as not to overlap the face portion of the target image.

  FIG. 4 is a flowchart showing an example of processing for setting the display position and size of the clock at the time of random automatic image selection. Note that the portable terminal of the present invention stores the position (Xo, Yo) and the value of size o as default values of the position and size at which the clock is displayed in the storage unit 106 in advance.

  First, when the power of the mobile terminal is turned on, the control unit 105 randomly selects and sets an image to be displayed as a standby screen from the image data stored in the storage unit 106 ( Step S101). Here, the processing start timing is not limited to when the power is turned on, but the display content of the display unit 102 is switched from a screen other than the standby screen (for example, a screen during a call) to the standby screen, or the like. But you can. Alternatively, an image to be displayed as a standby screen may be selected again every predetermined time.

  Next, the control unit 105 performs face detection processing on the set image (step S102). Then, based on the result of the face detection process, the control unit 105 determines whether or not a partial face image exists in the standby screen image (step S103).

  When the control unit 105 determines that a partial facial image exists, the control unit 105 calculates the position (Xa, Ya) for displaying the clock and the value of size a so as not to overlap the partial facial image. Then, the control unit 105 determines the display position and size value of the clock based on the calculated value (step S104).

  In addition, when the control unit 105 determines that the partial image of the face does not exist because the selected image is a landscape or the face is too small to be identified, the control unit 105 defaults from the storage unit 106 in advance. The set position (Xo, Yo) and the value of size o are extracted. Then, the control unit 105 determines the extracted value as it is as the display position and size value of the clock (step S105).

  Next, the control unit 105 causes the display unit 102 to display the image selected in step S101 and the clock set based on the position and size values determined in step S104 or step S105 (step S106).

  As a method for calculating the display position and size value of the clock, for example, there are the following methods. First, the control unit 105 identifies pixels other than the face detected in step S102. Next, the control unit 105 specifies a rectangular area formed by combining the specified pixels. Here, when a plurality of rectangular areas can be specified, the largest area may be selected. Further, when the clock is an analog clock display, a circular area may be specified instead of a rectangle. Next, the control unit 105 places a clock in the specified rectangular area. Here, the position of the clock in the rectangular area may be the center of the area or a place with the least color change. Further, when the rectangular area is smaller than the standard clock size, the clock size may be reduced in accordance with the rectangular area.

  As described above, according to the present embodiment, the mobile terminal specifies the face portion of the image by the face detection process. Then, a clock is displayed so as not to overlap the specified face portion. By doing so, it is possible to prevent the portion (the face portion of the person) that is most desired to be displayed when the user views the standby screen from being difficult to see. In addition, since the clock can be displayed appropriately according to the image automatically, the setting that automatically changes the image on the standby screen is effective without any overlap of the face and the clock in any image. Can be realized.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a functional block diagram illustrating an example of a functional configuration of the mobile terminal illustrated in FIG. 1 according to the second embodiment. As shown in FIG. 5, the present embodiment differs from the first embodiment in that the mobile terminal 100 includes an image selection unit 118 and a position / size registration unit 119 and does not include a random selection unit 112. . The mobile terminal 100 may include an image selection unit 118 and a position / size registration unit 119 in addition to the components shown in the first embodiment.

  In the present embodiment, the difference from the first embodiment is that the mobile terminal 100 includes an image selection unit 118 and a position / size registration unit 119, and does not include the random selection unit 112. The functional configuration is the same as that in the first embodiment (see FIG. 2). Therefore, description of other functional configurations is omitted.

  Specifically, the image selection unit 118 is realized by the key input unit 101 and the control unit 105. The image selection unit 118 has a function of selecting an image to be used as a standby screen in accordance with a user operation.

  Specifically, the position / size registration unit 119 is realized by the control unit 105. The position / size registration unit 119 has a function of registering the position and size values determined by the position / size determination unit 116 in the storage unit 106.

  Next, the operation will be described. FIG. 6 is a flowchart showing an example of a process for setting the display position and size of the clock at the time of manual image selection.

  First, the user uses the key input unit 101 to perform an operation of selecting an image to be displayed as a standby screen from stored data. Then, the control unit 105 selects and sets an image to be displayed as a standby screen from the image data stored in the storage unit 106 in accordance with a user operation (step S201).

  Next, the control unit 105 performs face detection processing on the set image (step S203). Next, the control unit 105 determines whether or not a partial face image exists in the standby screen image based on the result of the face detection process (step S203).

  When the control unit 105 determines that the partial facial image exists, the control unit 105 calculates the position (Xb, Yb) at which the clock is displayed and the size b value so as not to overlap the partial facial image. To do. Then, the control unit 105 determines the display position and size value of the clock based on the calculated value (step S204).

  If the control unit 105 determines that the partial facial image does not exist, the control unit 105 extracts the default position (Xo, Yo) and size o values from the storage unit 106 in advance. Then, the control unit 105 determines the extracted value as it is as the display position and size value of the clock (step S205).

  Next, the control unit 105 stores the display position and size values of the clock determined in step S204 or step S205 in the storage unit 106 (step S206).

  Next, when the user operates the key input unit 101 to display the standby screen, the control unit 105 displays a clock set based on the image selected in step S201 and the display position and size values stored in step S205. Are displayed on the display unit 102 (step S207).

  As described above, according to the present embodiment, by automatically setting and registering the display position and size of the clock, it is possible to save the user from having to manually determine the position and size each time an image is selected. it can.

  Next, the minimum configuration of the mobile terminal according to the present invention will be described. FIG. 7 is a functional block diagram illustrating a minimum configuration example of the mobile terminal. As shown in FIG. 7, the mobile terminal includes a random selection unit 112, a face detection unit 113, and a position / size determination unit 116 as minimum components.

  In the portable terminal having the minimum configuration shown in FIG. 7, the random selection unit 112 has a function of randomly selecting an image to be used as a standby screen. The face detection unit 113 has a function of detecting a partial image of the face from the image selected by the random selection unit 112. Further, the position / size determining unit 116 has a function of determining the display position and size of the clock so as not to overlap the partial image of the face detected by the face detecting unit 113.

  According to the portable terminal having the minimum configuration shown in FIG. 7, when the standby screen image is changed, the position of the watch and the size of the watch are appropriately set and arranged automatically. . Therefore, the image on the standby screen can be automatically changed without the clock overlapping the human face.

  In addition, in this embodiment, the characteristic structure of the portable terminal as shown to the following (1)-(5) is shown.

  (1) A mobile terminal (for example, the mobile terminal 100) includes a random selection unit (for example, realized by the random selection unit 112) that randomly selects an image to be displayed as a standby screen, and an image selected by the random selection unit. From the face detection means for detecting a partial image of the face (for example, realized by the face detection means 113) and the display position and size of the time display unit so as not to overlap the partial image of the face detected by the face detection means And position / size determining means (for example, realized by the position / size determining means 116).

  (2) The mobile terminal displays an image selected by the random selection unit and an image display unit that displays a time display unit set based on the display position and size values of the time display unit determined by the position / size determination unit ( For example, the image display unit 117 may be included).

  (3) The portable terminal includes a position / size storage unit (for example, realized by the position / size storage unit 115) that stores the display position and size value of the time display unit, and a time determined by the position / size determination unit. A position / size registration unit (for example, realized by the position / size registration unit 119) that registers the display position and size value of the display unit in the position / size storage unit may be included.

  (4) The position / size determining means, when the face detecting means cannot detect the partial image of the face, default values of the display position and size of the predetermined time display section stored in the position / size storing means (for example, The display position and size of the time display unit may be determined based on the position (Xo, Yo) and the size o).

  (5) The mobile terminal includes image storage means (for example, realized by the image storage means 111) for storing an image, and the random selection means is configured to randomly select an image from the images stored in the image storage means. May be.

  The present invention can be applied to an application in which the position and size of a watch are appropriately set according to an image on a standby screen of a mobile terminal.

It is a block diagram which shows an example of a structure of a portable terminal. It is a functional block diagram which shows an example of a function structure of the portable terminal shown in FIG. It is explanatory drawing which shows an example of the clock display attribute automatic setting by face detection. It is a flowchart which shows an example of the process which sets the display position and size of a clock at the time of random automatic image selection. It is a functional block diagram which shows an example of a function structure of the portable terminal shown in FIG. 12 is a flowchart illustrating an example of a process for setting a display position and a size of a clock when an image is manually selected. It is a functional block diagram which shows the minimum structural example of a portable terminal.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Portable terminal 101 Key input part 102 Display part 103 Radio | wireless part 104 Antenna part 105 Control part 106 Storage part 111 Image storage means 112 Random selection means 113 Face detection means 114 Position / size calculation means 115 Position / size storage means 116 Position / size Determination means 117 Image display means 118 Image selection means 119 Position / size registration means

Claims (9)

Random selection means for randomly selecting an image to be displayed as a standby screen;
Face detection means for detecting a partial image of a face from the image selected by the random selection means;
A portable terminal comprising: a position / size determining unit that determines a display position and a size of a time display unit so as not to overlap the partial image of the face detected by the face detecting unit. The image display means which displays the image which the random selection means selected, and the time display part set based on the display position and size value of the time display part which the position / size determination means determined. Mobile device. Position / size storage means for storing the display position and size value of the time display unit;
The portable terminal according to claim 1, further comprising: a position / size registration unit that registers the display position and size value of the time display unit determined by the position / size determination unit in the position / size storage unit. The position / size determining means, when the face detecting means cannot detect the partial image of the face, based on the default display position and size default values stored in the position / size storing means. The mobile terminal according to any one of claims 1 to 3, wherein a display position and a size of the display unit are determined. Image storage means for storing images;
The mobile terminal according to any one of claims 1 to 4, wherein the random selection unit randomly selects an image from the images stored in the image storage unit. A random selection step for randomly selecting an image to be displayed as the standby screen of the mobile device;
A face detection step of detecting a partial image of the face from the selected image;
A time display attribute automatic setting method, comprising: a position / size determination step for determining a display position and a size of the time display unit so as not to overlap with the detected partial image of the face. The time display attribute automatic setting method according to claim 6, further comprising an image display step of displaying the selected image and the time display unit set based on the determined display position and size value of the time display unit. On the computer,
A random selection process that randomly selects an image to be displayed as the standby screen of the mobile device;
A face detection process for detecting a partial image of the face from the selected image;
A time display attribute automatic setting program for executing position / size determination processing for determining the display position and size of the time display unit so as not to overlap with the detected partial image of the face. On the computer,
The time display attribute automatic setting program according to claim 8, wherein an image display process for displaying the selected image and the time display unit set based on the determined display position and size value of the time display unit is executed.

Images