Binocular Parallax and Motion Speed Comfort Analysis

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Solution Overview

Problem

Existing methods for calculating discomfort degree in binocular stereoscopic videos fail to consider the mutual relation between binocular parallax and object movement speed, particularly lacking a quantitative analysis that distinguishes between positive and negative parallaxes, leading to inaccurate comfort assessments.

Innovation Solution

A method that analyzes binocular parallax and movement speed at each pixel point in a binocular stereoscopic video, using specific formulas to calculate a comfort degree value, considering both visual plane and depth direction movements, and employing conservative estimation strategies to determine the overall video comfort level.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional binocular stereoscopic imaging methods are used, then stereoscopic imaging can be achieved, but view angle-focusing mismatch causes discomfort to viewers

Engineering Contradiction:
Improvestereoscopic imaging qualityVSAvoidviewer discomfort
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the parameters of binocular parallax and object movement speed to quantify their relationship with discomfort. By establishing a mathematical model that relates these parameters to comfort degree, the system can predict and optimize imaging parameters to reduce viewer discomfort while maintaining stereoscopic quality.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If binocular parallax and object movement speed are increased, then stereoscopic effect is enhanced, but discomfort degree increases

Engineering Contradiction:
Improvestereoscopic effectVSAvoiddiscomfort degree
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent establishes a feedback mechanism by calculating comfort degree based on binocular parallax and object movement speed parameters. This allows the system to evaluate the stereoscopic effect and adjust parameters to maintain optimal comfort levels while preserving the desired stereoscopic impact.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If existing comfort calculation methods are used, then some discomfort factors can be identified, but mutual relation between binocular parallaxes and movement speeds is not considered

Engineering Contradiction:
Improvediscomfort factor identificationVSAvoidmutual relation information
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The patent merges the analysis of binocular parallax and object movement speed into a unified comfort calculation model. By combining these previously separate factors into a single comprehensive formula, the system captures their mutual relationships and interactions, providing a more accurate assessment of viewer comfort.

Inventive Principle:
Principle #5Merging (Combining)

4Measurement precision

If Jung et al.'s method is used, then binocular parallaxes and movement speeds can be calculated, but positive and negative binocular parallaxes are not distinguished

Engineering Contradiction:
Improveparallax and speed calculationVSAvoidparallax direction information
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The patent applies local quality by treating positive and negative binocular parallaxes differently in the comfort calculation formula. By assigning different coefficients and weights to positive and negative parallax values, the model captures the directional characteristics of depth perception and their differential impact on viewer comfort.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS10091484B2Method for acquiring comfort degree of motion-sensing binocular stereoscopic video
Publication Date: 2018.10.02 TSINGHUA UNIVERSITY
  • US10091484B2 patent drawing
  • US10091484B2 patent drawing

AI summary

The present invention discloses a method for acquiring a comfort degree of a motion-sensing binocular stereoscopic video. The method includes the following steps: S1. carrying out binocular parallax and movement speed analysis on an input binocular video, and calculating a binocular parallax d, a movement speed vxy in a visual plane direction and a movement speed vz in a depth direction of each pixel point in the video; S2. calculating a corresponding comfort degree value c according to the parameters (d, vxy, vz) of the pixel point; S3. calculating the comfort degree value of the entire frame according to the calculated comfort degree value of each pixel point; S4. calculating the comfort degree value of the entire video according to the comfort degree value of each frame. The comfort degree of the binocular stereoscopic video is calculated according to the steps in the present invention, so that influence of positive and negative depth ranges and object movement on the comfort degree can be well considered to obtain more accurate estimation of the comfort degree.