Motion-Controlled Electronic Device Using Phase Correlation
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Solution Overview
Problem
Existing motion-controlled devices for electronic devices, such as game consoles, often require costly peripherals like cameras and depth sensors, making them impractical for mobile use and increasing costs.
Innovation Solution
A motion-controlled electronic device that uses a processor with integrated circuits to capture and process video frames, employing phase correlation methods to detect and recognize significant motions without the need for external peripherals, allowing for control of device functions through intuitive gestures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If external peripherals such as cameras and depth sensors are used for motion control, then motion recognition capability is improved, but device cost and complexity increase
Solution Approach 1:
The patent merges the motion detection function into the device itself by utilizing the existing camera and processor that are already part of the device. Instead of requiring separate external motion control peripherals, the device integrates these capabilities internally, allowing the processor to analyze video frames captured by the device's own camera for motion recognition.
Solution Approach 2:
The patent makes the device's existing camera and processor serve multiple functions - the camera is used both for its primary purpose (capturing images/video) and for motion control detection. The processor handles both general device operations and the specific task of analyzing video frames to detect user gestures, eliminating the need for dedicated motion control hardware.
2Measurement precision
If external peripherals such as cameras and depth sensors are used for motion control, then motion recognition capability is improved, but portability and practicality for mobile use deteriorate
Solution Approach 1:
The patent combines motion control functionality with the device's existing portable form factor. By integrating motion detection into the device itself rather than requiring separate external peripherals, the system maintains its portability while adding motion recognition capability. The device's built-in camera and processor are sufficient for motion control without requiring additional external equipment that would compromise mobility.
3Adaptability or versatility
If external peripherals are added for motion control, then motion control functionality is improved, but manufacturing cost increases
Solution Approach 1:
The patent merges motion control functionality into the device's existing hardware architecture. By utilizing the device's built-in camera and processor for motion detection rather than requiring separate external peripherals, the system adds motion control capability without the manufacturing costs associated with integrating additional specialized sensors and processing units.
Solution Approach 2:
The device serves itself by using its own existing components (camera and processor) to perform motion control functions. The processor analyzes video frames captured by the device's own camera to detect user gestures, eliminating the need for external motion control peripherals and the associated manufacturing costs.
Data Source
AI summary
An electronic device obtains a motion of a displaced object in two captured video frames utilizing phase correlation of the two frames. The electronic device identifies a magnitude of the motion and an area in a phase correlation surface corresponding to an area of the object, and accordingly determines if the motion is a qualified motion operable to trigger a gesture command of the electronic device. The phase correlation surface is obtained from the phase correlation of the two frames.