Mobile terminal and control method thereof for obtaining image in response to the signal

• US 11,032,467 B2
• Filed: 02/20/2017
• Issued: 06/08/2021
• Est. Priority Date: 01/16/2017
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Jungki
• Primary Examiner(s): Cutler, Albert H
• Application Number:
  US16/478,066
• Publication Number:
  US 20190364195A1
• Time in Patent Office: 1,569 Days
• Field of Search: 34823199-2316
• CPC Class Codes: G06F 2200/1614 Image rotation following screen orientation, e.g. switching from landscape to portrait mode
• CPC Class Codes: H04M 1/724 User interfaces specially adapted for cordless or mobile telephones
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality
• CPC Class Codes: H04M 2250/12 including a sensor for measuring a physical value, e.g. temperature or motion telephones including GPS signal receivers H04M2250/10
• CPC Class Codes: H04M 2250/52 including functional features of a camera constructional features concerning the integration of cameras in portable phones H04M1/0264
• CPC Class Codes: H04N 23/45 for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
• CPC Class Codes: H04N 23/61 based on recognised objects
• CPC Class Codes: H04N 23/62 Control of parameters via user interfaces
• CPC Class Codes: H04N 23/632 for displaying or modifying preview images prior to image capturing, e.g. variety of image resolutions or capturing parameters

Abstract

The present invention relates to a mobile terminal having a plurality of cameras and a video image capturing control method thereof. The mobile terminal according to an embodiment of the present invention comprises: a memory; a display unit; a first camera for acquiring a first image corresponding to a preview image being displayed on the display unit; a second camera for detecting an object in the preview image by the first camera, and acquiring a second image for the detected object; and a control unit for controlling the first camera to respond to a signal for acquiring the first image, and the second camera to acquire the second image together.

Claims

1. A mobile terminal, comprising:

a memory;

a display;

a first camera configured to obtain a first image corresponding to a preview image currently displayed on the display;

a second camera configured to detect an object from the preview image obtained by the first camera and obtain a second image for the detected object;

a sensor configured to sense a housing orientation of the mobile terminal; and

a controller;

wherein the controller;

controls the second camera to obtain the second image together in response to a signal for the first camera to obtain the first image,

controls the obtained first image by the first camera to be displayed on the display in response to sensing a first direction in which the housing orientation of the mobile terminal corresponds to landscape,

controls the obtained second image by the second camera to be displayed on the display in response to sensing a second direction in which the housing orientation of the mobile terminal corresponds to portrait, wherein the first image includes the second image,

wherein if receiving a zoom-in signal for the preview image before receiving the signal for obtaining the first image, displays an indicator on a prescribed region of the zoomed-in preview image and controls the indicator to display a rate occupied by the object included in a preview image after a zoom-in in a region of an object detected before the zoom-in by the second camera, and

obtains a third image corresponding to the preview image after the zoom-in, a fourth image corresponding to the object included in the preview image after the zoom-in and a fifth image corresponding to the object detected by the second camera before the zoom-in, creates a single image group using the third to fifth images, and saves data included in the created image group to the memory.

2. The mobile terminal of claim 1, wherein if receiving a touch input signal for the display or an input signal for a physical button provided to the mobile terminal, the controller controls the first camera and the second camera to obtain the first image and the second image, respectively.

3. The mobile terminal of claim 1, wherein if a plurality of objects are detected by the second camera and a signal for selecting a specific object is received, the controller controls the second camera to obtain the second image centering on the selected specific object.

4. The mobile terminal of claim 1, wherein the controller sets the obtained first image as a basic image, creates a sixth image by encoding metadata of the second image to a header part of a raw image format of the first image, and saves the created sixth image to the memory.

5. The mobile terminal of claim 1, wherein a view angle of the first camera is different from that of the second camera.

6. The mobile terminal of claim 1, wherein if the housing orientation of the mobile terminal sensed through the sensor is the first direction, the controller controls the third image to be displayed on the display,

wherein if the housing orientation of the mobile terminal sensed through the sensor is the second direction, the controller controls the fourth image to be displayed on the display, and

wherein if receiving a zoom-out signal for the displayed fifth image, the controller displays the fifth image on the display instead of the fourth image.

7. A method of controlling a mobile terminal, the method comprising:

obtaining a first image corresponding to a preview image currently displayed on a display through a first camera;

detecting an object from the preview image obtained by the first camera by controlling a second camera in response to a signal for the first camera to obtain the first image and obtaining a second image for the detected object together;

sensing a housing orientation of the mobile terminal;

displaying the obtained first image by the first camera on the display in response to sensing a first direction in which the housing orientation of the mobile terminal corresponds to landscape;

displaying the obtained second image by the second camera on the display in response to sensing a second direction in which the housing orientation of the mobile terminal corresponds to portrait, wherein the first image includes the second image;

receiving a zoom-in signal for the preview image before receiving the signal for obtaining the first image;

displaying an indicator on a prescribed region of the zoomed-in preview image in response to the zoom-in signal, wherein the indicator displays a rate occupied by the object included in a preview image after zoom-in in a region of an object detected before the zoom-in by the second camera;

obtaining a third image corresponding to the preview image after the zoom-in, a fourth image corresponding to the object included in the preview image after the zoom-in and a fifth image corresponding to the object detected by the second camera before the zoom-in;

creating a single image group using the third to fifth images; and

saving data included in the created image group.

8. The method of claim 7, the obtaining the first image, further comprising receiving a touch input signal for a display of the mobile terminal or an input signal for a physical button provided to the mobile terminal.

9. The method of claim 7, the obtaining the second image, further comprising:

if a plurality of objects are detected by the second camera, receiving a signal for selecting a specific object; and

obtaining the second image centering on the selected specific object.

10. The method of claim 7, further comprising:

setting the obtained first image as a basic image;

creating a sixth image by encoding metadata of the second image to a header part of a raw image format of the first image; and

saving the created sixth image.

11. The method of claim 7, wherein a view angle of the first camera is different from that of the second camera.

12. The method of claim 7, further comprising:

if the sensed housing orientation of the mobile terminal is the first direction, displaying the third image on the display of the mobile terminal;

if the sensed housing orientation of the mobile terminal is the second direction, displaying the fourth image on the display of the mobile terminal; and

if receiving a zoom-out signal for the displayed fifth image, displaying the fifth image on the display instead of the fourth image.