METHOD AND TERMINAL DEVICE FOR CONTROLLING DISPLAY OF VIDEO IMAGE

• US 20160093015A1
• Filed: 07/15/2015
• Published: 03/31/2016
• Est. Priority Date: 09/28/2014
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Inventors: Li, Feiyun, Li, Dan, Cheng, Yu, Tang, Mu, Guo, Hongwei
• Granted Patent: US 9,652,823 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
• CPC Class Codes: G06F 3/0485 Scrolling or panning
• CPC Class Codes: G06F 3/1454 involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
• CPC Class Codes: G06T 3/20 Linear translation of whole images or parts thereof, e.g. panning
• CPC Class Codes: G09G 2340/0492 Change of orientation of the displayed image, e.g. upside-down, mirrored
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 5/34 for rolling or scrolling
• CPC Class Codes: H04N 23/63 by using electronic viewfinders
• CPC Class Codes: H04N 23/66 Remote control of cameras or camera parts, e.g. by remote control devices
• CPC Class Codes: H04N 23/661 Transmitting camera control signals through networks, e.g. control via the Internet
• CPC Class Codes: H04N 23/6812 based on additional sensors, e.g. acceleration sensors

Abstract

The present disclosure relates to a method and a terminal device for controlling a display of a video image. The method includes: obtaining the video image captured by a smart camera device; obtaining orientation variation data of a terminal device when the video image is displayed on a screen of the terminal device; and controlling the video image to slide on the screen according to the orientation variation data of the terminal device.

Claims

1. A method for controlling a display of a video image in a terminal device, comprising:

obtaining the video image captured by a smart camera device;

obtaining orientation variation data of the terminal device when the video image is displayed on a screen of the terminal device; and

controlling the video image to slide on the screen according to the orientation variation data of the terminal device.

2. The method according to claim 1, wherein obtaining the video image captured by the smart camera device comprises:

establishing a wireless connection with the smart camera device; and

receiving the video image transmitted by the smart camera device via the wireless connection, wherein the video image comprises a video image captured in real time by the smart camera device or a video image in a video file locally stored in the smart camera device.

3. The method according to claim 1, wherein obtaining orientation variation data of the terminal device comprises:

initiating an orientation sensor, wherein the orientation sensor is configured to detect orientation data of the terminal device and transmit the orientation data at predetermined intervals; and

receiving the orientation data transmitted by the orientation sensor and obtaining the orientation variation data of the terminal device based on the orientation data.

4. The method according to claim 3, before starting the orientation sensor, further comprising:

registering a service interface for the orientation sensor such that the orientation sensor sends the orientation data of the terminal device via the service interface.

5. The method according to claim 3, wherein receiving the orientation data transmitted by the orientation sensor and obtaining the orientation variation data of the terminal device based on the orientation data comprises:

receiving a first angle value transmitted by the orientation sensor at a current interval;

obtaining a second angle value recorded by the terminal device, wherein the second angle value is an angle value transmitted by the orientation sensor at a previous interval preceeding to the current interval; and

calculating a difference between the first angle value and the second angle value to obtain an angular variation value as the orientation variation data of the terminal device.

6. The method according to claim 1, wherein controlling the video image to slide on the screen according to the orientation variation data of the terminal device comprises:

obtaining a sliding orientation of the video image according to the angular variation value, wherein the orientation variation data of the terminal device is an angular variation value;

calculating a product of the angular variation value and a predetermined pixel value and defining the product as a sliding value of the video image; and

controlling the video image to slide on the screen in the sliding orientation according to the sliding value.

7. The method according to claim 6, wherein controlling the video image to slide on the screen in the sliding orientation according to the sliding value comprises:

controlling the video image to slide left or right on the screen according to an angular variation value of the X-axis in a three-dimensional rectangular coordinate system, wherein the angular variation value is an angular variation value of the X-axis when the terminal device rotates around the Y-axis in the three-dimensional rectangular coordinate system.

8. The method according to claim 6, wherein controlling the video image to slide on the screen in the sliding orientation according to the sliding value comprises:

controlling the video image to slide up or down on the screen according to an angular variation value of the Y-axis in a three-dimensional rectangular coordinate system, wherein the angular variation value is an angular variation value of the Y-axis when the terminal device rotates around the X-axis in the three-dimensional rectangular coordinate system.

9. A terminal device for controlling a display of a video image, comprising:

a processor;

a memory configured to store instructions executable by the processor;

wherein the processor is configured to perform;

obtaining the video image captured by a smart camera device;

obtaining orientation variation data of the terminal device when the video image is displayed on a screen of the terminal device; and

controlling the video image to slide on the screen according to the orientation variation data of the terminal device.

10. The terminal device according to claim 9, wherein obtaining the video image captured by the smart camera device comprises:

establishing a wireless connection with the smart camera device; and

receiving the video image transmitted by the smart camera device via the wireless connection, wherein the video image comprises a video image captured in real time by the smart camera device or a video image in a video file locally stored in the smart camera device.

11. The terminal device according to claim 9, wherein obtaining orientation variation data of the terminal device comprises:

initiating an orientation sensor, wherein the orientation sensor is configured to detect orientation data of the terminal device and transmit the orientation data at predetermined intervals; and

receiving the orientation data transmitted by the orientation sensor and obtaining the orientation variation data of the terminal device based on the orientation data.

12. The terminal device according to claim 11, before starting the orientation sensor, the processor is configured to further perform:

registering a service interface for the orientation sensor such that the orientation sensor sends the orientation data of the terminal device via the service interface.

13. The terminal device according to claim 11, wherein receiving the orientation data transmitted by the orientation sensor and obtaining the orientation variation data of the terminal device based on the orientation data comprises:

receiving a first angle value transmitted by the orientation sensor at a current interval;

obtaining a second angle value recorded by the terminal device, wherein the second angle value is an angle value transmitted by the orientation sensor at a previous interval preceeding to the current interval; and

calculating a difference between the first angle value and the second angle value to obtain an angular variation value as the orientation variation data of the terminal device.

14. The terminal device according to claim 9, wherein controlling the video image to slide on the screen according to the orientation variation data of the terminal device comprises:

obtaining a sliding orientation of the video image according to the angular variation value, wherein the orientation variation data of the terminal device is an angular variation value;

calculating a product of the angular variation value and a predetermined pixel value and defining the product as a sliding value of the video image; and

controlling the video image to slide on the screen in the sliding orientation according to the sliding value.

15. The terminal device according to claim 14, wherein controlling the display image of the video image to slide on the screen in the sliding orientation according to the sliding value comprises:

controlling the video image to slide left or right on the screen according to an angular variation value of the X-axis in a three-dimensional rectangular coordinate system, wherein the angular variation value is an angular variation value of the X-axis when the terminal device rotates around the Y-axis in the three-dimensional rectangular coordinate system.

16. The terminal device according to claim 14, wherein controlling the display image of the video image to slide on the screen in the sliding orientation according to the sliding value comprises:

controlling the video image to slide up or down on the screen according to an angular variation value of the Y-axis in a three-dimensional rectangular coordinate system, wherein the angular variation value is an angular variation value of the Y-axis when the terminal device rotates around the X-axis in the three-dimensional rectangular coordinate system.

17. A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor of a terminal device, causes the terminal device to perform a method for controlling a display of a video image, the method comprising:

obtaining the video image captured by a smart camera device;

obtaining orientation variation data of a terminal device if the video image is displayed on a screen of the terminal device; and

controlling the video image to slide on the screen according to the orientation variation data of the terminal device.