Terminal Video Processing for Synchronized Audio-Visual Focus

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Solution Overview

Problem

Existing video recording technologies require users to have good shooting skills to achieve simultaneous image and audio zooming, which can be challenging, and there is a need to enhance user experience during video recording.

Innovation Solution

A video processing method that enables simultaneous focus tracking of audio and image by determining a focus region, enhancing sound of the target object while suppressing other sounds, and displaying images in a 'picture-in-picture' form, allowing for a close-up video of the target object.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the terminal implements simultaneous zooming of the audio and the image by adjusting the zoom magnification, then the sensory experience of the user is enhanced, but the user needs to have good shooting skills to achieve a good effect

Engineering Contradiction:
Improveease of operationVSAvoidvideo quality
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The terminal automatically identifies the target object and adjusts the zoom magnification based on the detected object's position and size, eliminating the need for user manual adjustment. The system serves itself by autonomously optimizing the zoom parameters to maintain the target object as the focus, thereby resolving the contradiction between ease of operation and video quality.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If the position of the photographed object relative to the terminal changes, then the terminal can capture different scenes, but the user needs to have good shooting skills to maintain focus on the target object

Engineering Contradiction:
ImproveadaptabilityVSAvoidfocus accuracy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The terminal continuously monitors the position of the target object in the captured video feed and uses this feedback to dynamically adjust the zoom magnification. When the target object moves or changes size in the frame, the system responds by adjusting the zoom to keep the object as the focus, thereby maintaining focus accuracy while adapting to changing scenes.

Inventive Principle:
Principle #23Feedback

3Area of moving object

If the zoom magnification becomes larger, then the photographed object becomes larger in the video, but the field of view becomes narrower

Engineering Contradiction:
Improvesize of photographed objectVSAvoidfield of view
Core Design Contradiction:
Area of moving objectVSArea of stationary object

Solution Approach 1:

The terminal dynamically adjusts the zoom magnification based on the detected target object's characteristics and position. Rather than using a fixed zoom level, the system varies the magnification in real-time to optimize the balance between the size of the photographed object and the field of view, allowing the object to be prominently displayed while maintaining an appropriate contextual view.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4383743B1Video processing method and terminal
Publication Date: 2025.11.05 HONOR DEVICE CO LTD
  • EP4383743B1 patent drawingFigure 1A
  • EP4383743B1 patent drawingFigure 1B~1C
  • EP4383743B1 patent drawingFigure 1D~2

AI summary

A video processing method and a terminal are provided. In the method, when the terminal records a video, the terminal may shoot (acquire) an image by using a camera (the image shot by using the camera is referred to as an original image below), and determine a focus of the shooting based on the original image. Then, the terminal may implement image focus tracking on a photographed object displayed in a first image region in which the focus is located, and implement audio focus tracking on a photographed object displayed in a second image region in which the focus is located. A focus tracking video is obtained through the image focus tracking and the audio focus tracking.