Specular Highlight Composite Image via Dynamic Opacity

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Solution Overview

Problem

Current digital image capture and display methods fail to effectively convey the brilliance and reflective properties of objects with specular highlights, such as polished gemstones and glossy plastics, leading to inadequate online representations that lose their luster when displayed in a single static image.

Innovation Solution

A method and system for generating and viewing composite images of objects with specular highlights by recording multiple images from different angles and using gyroscopes and accelerometers to adjust the opacity of each image based on the viewer's tilt, creating a dynamic display of light reflections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a single static image is used to display objects with specular highlights, then the image capture process is simple and fast, but the brilliance and reflective properties of the object are lost

Engineering Contradiction:
Improveimage capture efficiencyVSAvoidspecular highlight information
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The patent divides the illumination process into multiple separate images, each captured with light sources positioned at different angles around the object. This segmentation allows each image to capture specular highlights from a specific direction, and the combination of these segmented images restores the complete specular information that would be lost in a single static image.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from a two-dimensional static image to a three-dimensional interactive representation by adding the dimension of light source angle. Multiple images are captured with illumination from different spatial dimensions, and the system combines these dimensions to create a composite image that preserves specular properties across all viewing angles.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Loss of information

If multiple images from different angles are captured to preserve specular highlights, then the brilliance and reflective properties are maintained, but the device complexity and processing requirements increase

Engineering Contradiction:
Improvespecular highlight informationVSAvoidimage capture and processing system
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent employs a single camera device that performs multiple functions: capturing base lighting information, capturing specular highlight information from different angles, and enabling interactive viewing. This multi-functionality reduces the need for multiple specialized devices while maintaining comprehensive specular capture capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent creates digital copies of the object from multiple angles with different lighting conditions. These copies are stored and then computationally combined to generate the final composite image. The copying approach allows the original physical setup to be replicated virtually, reducing the need for complex physical manipulation during display.

Inventive Principle:
Principle #26Copying

3Loss of information

If multiple images are combined into a composite display, then the specular properties are preserved, but the display becomes more complex and requires additional processing

Engineering Contradiction:
Improvespecular highlight informationVSAvoidcomposite image processing
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent creates a dynamic composite image that can interact with the viewer's perspective. The system calculates the viewer's position and orientation, then dynamically adjusts which light source images are most prominent in the composite display. This dynamic adaptation preserves specular properties while simplifying the display by focusing computational resources on the most relevant images at any given moment.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameters of image combination based on viewing conditions. Different weights are assigned to different light source images depending on the viewer's angle and the object's geometry. This parameter adjustment allows the system to maintain specular accuracy while optimizing processing by not uniformly treating all input images equally.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3134851B1Specular highlights on photos of objects
Publication Date: 2021.03.17 EBAY INC
  • EP3134851B1 patent drawingFigure 1
  • EP3134851B1 patent drawingFigure 2
  • EP3134851B1 patent drawingFigure 3

AI summary

Systems and methods are presented for recording and viewing images of objects with specular highlights. In some embodiments, a computer-implemented method may include accessing a first plurality of images, each of the images in the first plurality of images including an object recorded from a first position, and a reflection of light on the object from a light source located at a different location than in each of the other images in the first plurality of images. The method may also include generating a first composite image of the object, the first composite image comprising a superposition of the first plurality of images, and wherein each of the images in the first plurality of images is configured to change in a degree of transparency within the first composite image and in accordance with a first input based on a degree of tilt.