Sticker Placement Using Reference-Line Alignment for Precise Positioning

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Solution Overview

Problem

Existing methods fail to accurately position stickers in images due to user-selected approximations, leading to imprecise placement.

Innovation Solution

A method and apparatus that utilize a target reference line to identify the adding position of a sticker, detect position changes through user operations, determine a final attachment state, and move the sticker to the precise position based on predefined reference lines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a user selects an adding position of a sticker through eyes and drags the sticker directly, then the operation is simple and fast, but the positioning precision is poor

Engineering Contradiction:
Improvesticker adding operationVSAvoidsticker positioning precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent introduces reference lines as an intermediary element between the user's dragging operation and the final sticker placement. The reference line serves as a mediator that captures the user's intent while providing a mechanism for precise positioning. When the user drags the sticker, the system detects when a reference line is covered and uses that reference line's predefined position to accurately place the sticker, thus resolving the contradiction between simple operation and precise positioning.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the sticker is positioned by approximate user selection, then the operation process is simple, but the adding position cannot be accurately controlled

Engineering Contradiction:
Improvepositioning mechanism complexityVSAvoidsticker adding position accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent applies preliminary action by pre-defining reference lines at specific positions before the user performs the sticker adding operation. These reference lines are prepared in advance with known coordinates and positions. When the user drags the sticker, the system checks against these pre-defined reference lines to determine the final placement position, thereby achieving accurate positioning without requiring complex real-time calculation or multiple adjustment steps.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4113446B1Sticker processing method and apparatus
Publication Date: 2025.09.17 DOUYIN VISION CO LTD
  • EP4113446B1 patent drawingFigure 1
  • EP4113446B1 patent drawingFigure 2~3

AI summary

The present disclosure discloses a sticker processing method, an apparatus, an electronic device and a computer-readable storage medium. The method includes: acquiring an image and a sticker; determining a target reference line, where the target reference line is used to identify an adding position of the sticker in the image; detecting a position change of the sticker in the image in response to a user's moving operation on the sticker; determining a final attachment state of a preset reference line on the sticker and the target reference line according to the position change; and moving the sticker to the adding position if the final attachment state is an attached state. In embodiments of the present disclosure, the position of the sticker can be positioned precisely by determining coordinates of the target reference line, determining the final state of the preset reference line of the sticker and the target reference line according to the position change of the sticker in the image, and moving the sticker to the adding position if the final attachment state is the attached state.