Image Lighting Effect Selection Based on Distance Accuracy

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Solution Overview

Problem

Existing image processing techniques for applying lighting effects based on virtual light sources face challenges due to the accuracy of distance information, which can result in undesired lighting effects being applied to images.

Innovation Solution

An information processing apparatus that obtains image data and distance information, determines the accuracy of this information, and selects appropriate lighting effects from a list to apply the correct lighting effect to the image, preventing mismatched effects from being applied.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If lighting effects are applied based on distance information, then the visual effect is enhanced, but incorrect lighting effects may be applied when distance information accuracy is insufficient

Engineering Contradiction:

Improveaccuracy of lighting effect applicationVSAvoidapplicability of lighting effects

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent changes the parameter of distance information accuracy assessment to determine which lighting effects can be appropriately applied. By evaluating whether distance information meets the accuracy requirements for specific lighting effects, the system dynamically adjusts the set of applicable effects, resolving the contradiction between reliability and adaptability.

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If all lighting effects are made available to users, then user choice is increased, but users may select effects that are not suitable for the image quality

Engineering Contradiction:

Improveuser control over lighting effectsVSAvoiddistance information accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system provides feedback to users by indicating which lighting effects are appropriate for their image's distance information accuracy. This feedback mechanism guides users to select suitable effects without restricting their control, resolving the contradiction between ease of operation and measurement precision.

Inventive Principle:

Principle #23Feedback

3Productivity

If lighting effects are applied without checking distance information accuracy, then processing speed is maintained, but image quality deteriorates due to mismatched effects

Engineering Contradiction:

Improveimage processing speedVSAvoidlighting effect application precision

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The patent performs preliminary assessment of distance information accuracy before applying lighting effects. By evaluating the suitability of lighting effects in advance based on distance information quality, the system avoids applying mismatched effects that would degrade image quality, while maintaining efficient processing through pre-validation.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11210767B2Information processing apparatus to determine candidate for lighting effect, information processing method, and storage medium

Publication Date: 2021.12.28 CANON KK

AI summary

An information processing apparatus includes a processor and a memory. The memory contains instructions that, when executed by the processor, cause the processor to perform as a first obtaining unit, a second obtaining unit, and a first determination unit. The first obtaining unit is configured to obtain image data representing an image. The second obtaining unit is configured to obtain distance information corresponding to the image data. The first determination unit is configured to determine, based on accuracy of the distance information, a candidate for a lighting effect applicable to the image in applying a lighting effect based on the distance information to the image.