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Method and system for automatically starting and stopping camera unit

A technology of camera unit and automatic switch, which is applied in the field of electronic information, can solve the problems of wasting power, and achieve the effect of saving time and saving mobile phone power

Active Publication Date: 2013-04-17
SHANGHAI HEHE INFORMATION TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sometimes users will forget to turn off the camera and put down the phone after looking up new words. At this time, the phone will waste power in vain with the camera on.

Method used

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  • Method and system for automatically starting and stopping camera unit

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Effect test

Embodiment 1

[0050] see figure 1 , the present invention discloses a method for automatically switching on and off a camera on a mobile device based on images and accelerometers, allowing people to save the tedious operation of clicking buttons when using some camera-based mobile phone applications, and achieve more convenient and quick switching The camera is more comfortable to use and saves the user's time.

[0051] like figure 1 As shown, the method for automatically switching the camera unit of the present invention includes the following steps:

[0052] [Step 101] The user first starts the application program on the mobile phone, the program can automatically turn on the camera on the mobile phone, and start to capture the images captured by the camera in real time.

[0053] [Step 102] The program acquires the first frame of image data P 1 , and initialize the count value I to 0 at the same time.

[0054] [Step 103] The program acquires the current screen image P at each next tim...

Embodiment 2

[0060] This embodiment discloses a method for automatically switching on and off the camera unit, and the method includes the following steps:

[0061] [Step S100] Start the application program of the electronic device, the application program automatically starts the camera unit of the electronic device, and starts to capture the image captured by the camera unit in real time;

[0062] [Step S200] Acquiring the captured image at a set time interval, and judging whether the electronic device is in an idle state according to the acquired image, and automatically shutting down the camera unit if it is;

[0063] [Step S300] After the camera unit is turned off, the application program starts to acquire the acceleration vector of the accelerometer on the three-dimensional coordinate system, and calculates its amplitude G; if G exceeds a preset threshold value GT, the application program Turn on the camera automatically, go to step 200.

[0064] In said step S200, the method for ju...

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PUM

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Abstract

Disclosed is a method and system for automatically switching camera unit on and off. The method comprises: activating the application of the electronic device, the application automatically activates the camera unit of the electronic device and begins to capture images taken by the camera unit in real-time; Obtaining the images taken after each set time interval and determining if the electronic device is in an idle state according to the images obtained, if the camera unit is in an idle state then automatically turn off the camera unit; after the camera unit is turned off, the application starts to obtain an acceleration vector in a three-dimensional coordinate system from an accelerometer, and calculates the magnitude of the vector G; if G exceeds a preset threshold GT, then the application will automatically turn on the camera. The present invention allows users to eliminate cumbersome buttons-pressing operations when using certain camera-based applications, making turning the camera on and off more convenient and quickly, more comfortable to use, as well as saving time for the user.

Description

technical field [0001] The invention belongs to the technical field of electronic information, and relates to a method for controlling a camera unit, in particular to a method for automatically switching the camera unit; meanwhile, the invention also relates to a system for automatically switching the camera unit. Background technique [0002] Now the camera gradually becomes the standard configuration of the mobile phone, and more and more mobile phones are equipped with the camera, and most of the cameras are installed on the back of the mobile phone. The number of pixels of the mobile phone camera is usually above 2 million, and the CPU of the mobile phone is usually above 200MHz. Accelerometers have also begun to be gradually adopted by some mid-to-high-end mobile phones and become their standard configuration. The accelerometer can obtain the vector data of the motion acceleration of the mobile phone under the three-dimensional space coordinates in real time, and has a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232H04M1/725H04M1/72454
CPCH04N5/232H04M1/725H04N23/60
Inventor 龙腾镇立新
Owner SHANGHAI HEHE INFORMATION TECH DEV