Dual-Camera Preview Transition Animation for Smooth Mode Switching

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Solution Overview

Problem

The switching between different photographing modes in electronic devices with multiple cameras results in a rigid and delayed display of picture data, leading to a 'frame freezing' visual effect, which affects user experience during video shooting.

Innovation Solution

A video shooting method that includes animation processing during mode switching, transitioning between split-screen and full-screen display modes through dynamic transition animations, using Gaussian blur and opacity changes, and spatial adjustments of image regions to ensure smooth picture switching.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If picture data from different cameras is directly displayed during mode switching, then the switching response is fast, but the picture switching appears rigid with frame freezing visual effect

Engineering Contradiction:
Improvemode switching speedVSAvoidpicture switching smoothness
Core Design Contradiction:
SpeedVSEase of operation

Solution Approach 1:

The patent applies dynamics by introducing animation effects that transform the static, rigid picture switching into a dynamic, smooth transition. During mode switching, the system uses scaling animations, fading effects, and intermediate frame displays to create a fluid visual transition between different camera views, eliminating the frame freezing effect while maintaining fast switching response.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent uses intermediate animated frames as a mediator between the direct camera feeds. These intermediate frames include scaled-down versions, blurred transitions, and picture-in-picture compositions that bridge the gap between different photographing modes, providing a smooth visual transition without directly switching between the raw camera inputs.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If animation processing is added during picture switching, then the picture switching becomes more fluent and vivid, but the system complexity increases

Engineering Contradiction:
Improvepicture switching smoothnessVSAvoidprocessing system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent segments the picture switching process into multiple distinct animation phases: initial frame display, scaling animation, fading transition, and final frame presentation. Each phase is handled by separate processing modules that can be independently optimized and controlled, reducing the overall system complexity while achieving smooth transitions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent utilizes parameter changes in image processing to create animation effects. By dynamically adjusting parameters such as scale factor, opacity, blur radius, and transition duration, the system achieves fluent picture switching without requiring complex hardware modifications. These parameter-based transformations are computationally efficient and can be implemented through software control.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12604081B2Video shooting method and electronic device
Publication Date: 2026.04.14 HONOR DEVICE CO LTD
  • US12604081B2 patent drawing
  • US12604081B2 patent drawing
  • US12604081B2 patent drawing

AI summary

An electronic device includes a display, a first camera, and a second camera. The first camera and the second camera are located on different sides of the display, and the first camera and the display are located on a same side of the electronic device. A method includes: displaying, in a first region of the display, a first image collected in real time by the first camera, and displaying, in a second region of the display, a second image collected in real time by the second camera, where the second region is the entire display region of the display, and the first region is smaller than the second region.