Method and apparatus for controlling a mobile device using a camera

A technology of interpretation and trend, applied in equipment with functional cameras, input/output process of data processing, input/output of user/computer interaction, etc., can solve problems such as non-portability and usability cannot keep up with functions

Inactive Publication Date: 2010-12-22
HTC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But unfortunately, usability has not kept up with these added features
Due to the different sizes of desktop computers and mobile devices, it is not possible to fully transfer the usage model applied to desktop computers to mobile devices

Method used

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  • Method and apparatus for controlling a mobile device using a camera
  • Method and apparatus for controlling a mobile device using a camera
  • Method and apparatus for controlling a mobile device using a camera

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Embodiment Construction

[0043] The present invention discloses a method and system (hereinafter referred to as "command recognition user interface system" or "system") for controlling application programs on a mobile device using an image sensor. The system uses image processing to detect the user's control gestures. For example, controlling gestures may include moving a hand laterally, moving a hand toward or away from the camera, or opening or clenching a hand. These control actions are linked to user commands executed by the controlled application. Before any objects are present, the system initializes by storing a background image showing the field of view of the image sensor. The system then detects new objects within the field of view by comparing the new image to the background image. If a new object is detected, the system remains in a wait state until the object within the field of view becomes stationary. When the target object is stationary, the system detects whether the target object ...

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Abstract

A method and system for using an image sensor to control applications on a mobile device is disclosed. The system uses image processing to detect control gestures by the user. Control gestures may include, for example, moving a hand laterally, moving the hand closer or farther away from the camera, or opening and closing a hand. These control motions are linked to user commands to be executed by the application being controlled. The system initializes by storing a background image showing the field of view of the image sensor before any objects are present. It then detects new objects in the field of view by comparing new images to the background image. If a new object is detected, the system waits until the object is stationary in the field of view. After the object is stationary, the system detects if there is a change in the object indicating a control gesture. After detecting a change in the stationary object, the system determines a set of parameters defining the change and matches the parameters to a user command.

Description

technical field [0001] The invention relates to a method and device for interpreting control trends. Background technique [0002] As mobile technology has advanced, mobile devices have become smaller and more powerful, and the wireless networks that connect them have also improved. These improvements mean that today's mobile devices are not just capable of voice calls, but can perform many functions by connecting to the network. For example, mobile devices can be used to send electronic mail (e-mail), browse the Internet, and send instant messages. Many devices also include a Global Positioning System (GPS) receiver with built-in maps (or download maps from the network). In some cases, the mobile device supports wireless standards that provide local connectivity, such as 802.11 serial communication protocol or Bluetooth. These standards may enable these devices to connect to a Wireless Local Area Network (WLAN), or even communicate with other mobile devices in a peer-to-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01H04M1/725
CPCH04M2250/52H04M1/725G06F3/017
Inventor 江庆谅许志风张文琪
Owner HTC CORP
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