Audio-Triggered Camera Switching for Continuous Video Capture

Solution Overview

Problem

Current video acquisition methods require manual switching between rear and front cameras, resulting in discontinuous video and cumbersome operation, especially when recording a space corresponding to the front camera, necessitating post-processing editing.

Innovation Solution

A method and electronic apparatus that utilize real-time audio processing to automatically switch between image collection devices based on the presence of a target sound source in different spaces, allowing continuous video acquisition without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual switching between rear and front cameras is used, then the user can record images in different spaces, but the video becomes discontinuous and requires post-processing editing

Engineering Contradiction:

Improveability to record images in different spacesVSAvoidvideo continuity

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system uses audio data as feedback to automatically trigger camera switching. The audio processing engine continuously monitors audio data and automatically switches between rear and front cameras based on sound source detection, eliminating manual intervention and ensuring continuous video recording without discontinuities

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs self-service by automatically detecting sound sources and switching cameras without user intervention. The audio processing engine autonomously determines when to switch between cameras based on audio analysis, making the system self-regulating and eliminating the need for manual camera switching

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If manual switching between front and rear cameras is required, then the user can capture different spaces, but the operation becomes cumbersome

Engineering Contradiction:

Improveability to capture different spacesVSAvoidoperational simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system performs self-service by automatically detecting sound sources and switching cameras without user intervention. The audio processing engine autonomously determines when to switch between cameras based on audio analysis, making the system self-regulating and eliminating the need for manual camera switching

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical manual camera switching operation with an automated audio-based control system. The audio processing engine uses acoustic field detection to automatically trigger camera switching, substituting manual mechanical operations with an automated sensing and control system

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Duration of action of stationary object

If the rear camera is used for recording, then the video capture is continuous, but the front camera space cannot be recorded

Engineering Contradiction:

Improvevideo recording continuityVSAvoidability to record front camera space

Core Design Contradiction:

Duration of action of stationary objectVSAdaptability or versatility

Solution Approach 1:

The system uses audio data as feedback to automatically trigger camera switching. The audio processing engine continuously monitors audio data and automatically switches between rear and front cameras based on sound source detection, eliminating manual intervention and ensuring continuous video recording without discontinuities

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system dynamically switches between rear and front cameras based on real-time audio analysis. The camera selection is not fixed but adapts dynamically according to the detected sound source location, allowing the system to maintain continuous recording while capturing both rear and front camera spaces as needed

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11722632B2Video acquisition method and electronic apparatus

Publication Date: 2023.08.08 LENOVO (BEIJING) LTD

AI summary

A video acquisition method includes calling a first image collection device and a sound collection device based on a camera mode, collecting first image data of a first space in real-time through the first image collection device, collecting audio data covering a spatial environment including the first space in real-time through the sound collection device, processing the audio data in real-time based on an audio processing engine, in response to determining, through the audio processing engine, that the audio data indicates that a target sound source exists in a second space different from the first space, calling a second image collection device, and collecting second image data of the second space in real-time through the second image collection device.