Streamer Video Display With Mirrored Object Alignment

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Solution Overview

Problem

In live streaming, the inversion of the live video displayed on the streamer's terminal results in decreased readability of character information and objects, such as purchase buttons and subtitles, due to their inverted display, leading to misalignment with the streamer's actions.

Innovation Solution

A streamer terminal that synthesizes objects at predetermined positions in the live video and mirror image video, allowing for dynamic changes in display mode and position based on streamer operations, ensuring correct alignment and visibility of objects in both views.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the live video is inverted to create a mirror image video for the streamer, then the streamer can check their appearance as in a mirror, but the character information and objects become inverted and difficult to read

Engineering Contradiction:

Improvestreamer's ability to check appearanceVSAvoidreadability of character information

Core Design Contradiction:

Ease of operationVSLoss of information

Solution Approach 1:

The patent applies local quality by making different parts of the video have different orientations. The streamer video background is inverted to create a mirror effect, while the objects (subtitles, purchase buttons, character information) are kept in normal orientation. This allows the streamer to see themselves correctly in the mirror image while maintaining readability of all text and information elements.

Inventive Principle:

Principle #3Local quality

2Loss of information

If objects are synthesized at the same positions in the mirror image video as in the live video, then the objects appear correctly oriented, but the streamer points to positions that do not align with the viewer's view

Engineering Contradiction:

Improvereadability of character informationVSAvoidalignment between streamer's pointing and object position

Core Design Contradiction:

Loss of informationVSMeasurement precision

Solution Approach 1:

The patent applies inversion by placing objects at mirror image positions in the streamer video rather than at the same positions as in the viewer video. Since the video background is inverted, objects are positioned symmetrically on the opposite side, which creates correct alignment when the streamer points to them in the mirror image.

Inventive Principle:

Principle #13The other way round (Inversion)

3Adaptability or versatility

If the streamer video and viewer video are kept completely separate, then each view can be optimized independently, but the alignment and coordination between the two views becomes complex

Engineering Contradiction:

Improveindependent optimization of video viewsVSAvoidcoordination between streamer and viewer videos

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies asymmetry by creating a symmetric relationship between the two video views through mirror image positioning. The streamer video is the mirror image of the viewer video, with objects positioned symmetrically. This asymmetric approach (one inverted, one normal) actually simplifies coordination because the relationship between the two views is mathematically defined and consistent.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS12477157B2Streamer terminal, display method, and non-transitory computer readable medium for displaying video during live streaming

Publication Date: 2025.11.18 RAKUTEN GROUP INC

AI summary

A generator (251) generates a viewer video in which an object is synthesized at a predetermined synthesis position in a live video captured by an imager (210). Additionally, the generator (251) generates a streamer video that is a video obtained by synthesizing the object in a mirror image video in which the live video is inverted, and in which the object is synthesized at a mirror image position relative to the synthesis position. A streaming unit (252) sends the viewer video generated by the generator (251) to a streaming server for streaming to the viewer terminal. A display 260) displays the streamer video generated by the generator (251).