Accessory Image Tilt Correction for Natural Superimposition
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Solution Overview
Problem
Images of accessories on e-commerce sites, especially those worn dangling from the body, appear unnatural when superimposed on model images due to differences in gravity direction and composition, causing a strange appearance.
Innovation Solution
An image processing device that acquires item and model images, corrects the tilt of the item region to align with the gravity direction in the model image, and superimposes the corrected item region on the model image, ensuring a natural display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If item images are photographed flat on a table for e-commerce display, then the composition is balanced and easy to capture, but the appearance becomes unnatural when superimposed on model images due to gravity direction differences
Solution Approach 1:
The patent applies parameter changes by detecting the tilt angle of the item in the flat photograph and calculating a correction angle based on the gravity direction in the model image. The item image is then rotated by this correction angle to adjust its orientation, transforming the parameter of tilt angle to match the natural gravity direction when worn, thereby resolving the contradiction between easy flat capture and natural appearance.
2Shape
If item images are photographed in tilted positions to balance composition, then the visual appeal improves, but the appearance becomes more unnatural when superimposed on model images
Solution Approach 1:
The patent applies preliminary action by pre-calculating the correction angle based on the detected tilt angle and model image gravity direction before the actual superimposition process. This preliminary calculation of the orientation adjustment ensures that when the item image is later superimposed on the model image, the tilt has already been compensated for, maintaining both composition balance and natural appearance.
3Productivity
If item images are superimposed without tilt correction, then the processing time is reduced, but the displayed image appears unnatural and causes a feeling of strangeness
Solution Approach 1:
The patent applies mechanics substitution by replacing complex manual adjustment mechanisms with automated image processing algorithms. The system automatically detects the tilt angle of the item in the photograph, calculates the appropriate correction angle based on gravity direction, and applies the correction through digital image rotation. This substitution of mechanical adjustment with computational methods maintains processing efficiency while achieving precise tilt correction for natural appearance.
Data Source
AI summary
An image processing device includes an item image acquisition unit that acquires an item image, a model image acquisition unit that acquires a model image, a correction unit that corrects a tilt of a correction target region being at least a part of an item region being a region where an item is shown in the item image so that a direction of a center of gravity position of the correction target region with respect to a support position of the correction target region is along a direction of gravity in the model image, and an output unit that outputs the model image and the item region so that the item region is displayed superimposed on the model image. A composite image closer to the state where the item is actually worn on the human body is thereby provided.