Animation Device Corrects Wagon Wheel Illusion

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Solution Overview

Problem

Conventional animation devices impair the user's operation feeling by either setting a moving speed that prevents the wagon wheel phenomenon or displaying images at variable speeds, leading to unpleasant visual effects and a mismatch between the perceived and intended animation direction.

Innovation Solution

An animation device comprising a moving operation acceptor, a moving position calculator, and a moving position corrector that adjusts the image positions to align the perceived animation direction with the user's intended operation, preventing the wagon wheel phenomenon while maintaining a smooth user experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the moving speed of images is set to prevent the wagon wheel phenomenon, then the visual perception accuracy is improved, but the operation feeling is impaired due to speed mismatch

Engineering Contradiction:

Improveperception accuracyVSAvoidoperation feeling

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The patent applies dynamics by making the image moving speed variable rather than fixed. The system dynamically adjusts the moving speed of images based on the user's operation speed, allowing the display to adapt to different interaction scenarios. This resolves the contradiction by enabling the system to prevent the wagon wheel phenomenon at appropriate speeds while maintaining natural operation feeling when users interact quickly.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of image moving speed from a static value to a dynamic variable that can be adjusted according to operation characteristics. By modifying this parameter based on detected operation speed, the system achieves both accurate visual perception (preventing wagon wheel phenomenon) and natural operation feeling, as the speed adaptation allows users to interact naturally without artificial constraints.

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If images are displayed at variable speed to match user operation, then the operation feeling is improved, but the wagon wheel phenomenon occurs causing visual illusion

Engineering Contradiction:

Improveoperation feelingVSAvoidperception accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent implements feedback by continuously monitoring the user's operation speed and using this information to adjust the image display speed. The system detects the operation speed, compares it with the current display speed, and adjusts accordingly. This feedback mechanism ensures that images are displayed at variable speeds matching user operations while preventing the wagon wheel phenomenon through intelligent speed adjustment based on real-time operation detection.

Inventive Principle:

Principle #23Feedback

3Speed

If the animation moves at high speed to respond to user flick operation, then the responsiveness is improved, but the wagon wheel phenomenon causes the animation to appear to move in the opposite direction

Engineering Contradiction:

Improveanimation speedVSAvoidmoving direction perception

Core Design Contradiction:

SpeedVSMeasurement precision

Solution Approach 1:

The patent applies dynamics by making the animation speed adaptive rather than fixed at high values. The system dynamically adjusts the animation speed based on the detected flick operation characteristics, allowing high speed for responsiveness while preventing the wagon wheel phenomenon through intelligent speed modulation that maintains correct directional perception.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent applies preliminary anti-action by proactively adjusting the animation speed to prevent the wagon wheel phenomenon before it occurs. The system detects flick operations and pre-adjusts the display speed to values that avoid the phenomenon, ensuring that even at high speeds, the animation maintains correct directional perception and does not create visual illusions of opposite movement.

Inventive Principle:

Principle #9Preliminary anti-action

Data Source

PatentUS9922440B2Animation device and animation method to make a seeming moving direction agree with a determined moving direction of the animation

Publication Date: 2018.03.20 MITSUBISHI ELECTRIC CORP

AI summary

A moving position correcting section is provided which determines a seeming moving direction of an animation from positional relationships between positions before movement of a plurality of images composing the animation and moving positions of the plurality of images calculated by a moving position calculation section, and if the seeming moving direction disagrees with the moving direction determined by the moving position calculation section, the moving position correcting section corrects the moving positions of the plurality of images in such a manner that the seeming moving direction agrees with the moving direction determined by the moving position calculation section. An image display displays the plurality of images at the moving positions corrected by the moving position correcting section.