Stereoscopic Video Stream Compression via Correlative Data Removal

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Solution Overview

Problem

Conventional methods for producing three-dimensional moving-picture video streams require sophisticated and costly camera equipment, limiting accessibility and intensity of the three-dimensional visual effect due to constraints on camera size and the complexity of capturing synchronized video streams.

Innovation Solution

A method for preparing stereoscopic video streams by rectifying and compressing a pair of video streams, where one stream is reduced to remove correlative data from the other, allowing for flexible two-dimensional or three-dimensional display based on user preference and display capabilities, using a computer system to process and transform frames through mesh-based transformations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If stereo video cameras with multiple lenses are used to produce three-dimensional moving-picture video streams, then the intensity of the three-dimensional visual effect is improved, but the cost of production and device complexity increase

Engineering Contradiction:
Improveintensity of three-dimensional visual effectVSAvoidcost of production
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses a single video camera to capture two-dimensional moving-picture video streams, then computationally generates stereoscopic pairs by creating virtual copies of the video data with simulated depth information. This approach replicates the effect of multiple physical cameras without requiring actual multiple-lens equipment, thereby reducing production costs while maintaining three-dimensional visual effect intensity.

Inventive Principle:
Principle #26Copying

2Reliability

If stereo video cameras with multiple lenses are used to produce three-dimensional moving-picture video streams, then the intensity of the three-dimensional visual effect is improved, but the device complexity increases

Engineering Contradiction:
Improveintensity of three-dimensional visual effectVSAvoidcamera equipment sophistication
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical system of multiple physical cameras and lenses with a computational system. A single video camera captures standard two-dimensional footage, and software algorithms then synthesize stereoscopic video pairs by adding virtual depth information and generating corresponding left and right eye views. This substitution eliminates the need for sophisticated multi-lens camera equipment while achieving the same three-dimensional visual effect.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If multiple video cameras are used to capture synchronized moving-picture video streams, then the three-dimensional visual effect is achieved, but the complexity of targeting and capturing increases

Engineering Contradiction:
Improvethree-dimensional visual effectVSAvoidcomplexity of capturing synchronized video streams
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent generates virtual copies of video frames with simulated depth displacement to create stereoscopic pairs from a single camera source. This computational copying approach eliminates the need for physically coordinating multiple cameras to capture synchronized footage, thereby reducing the complexity of targeting and capturing while maintaining the three-dimensional visual effect.

Inventive Principle:
Principle #26Copying

4Device complexity

If a single video camera is used to produce two-dimensional moving-picture video streams, then the cost of production and device complexity are reduced, but the intensity of the three-dimensional visual effect is limited

Engineering Contradiction:
Improvecost of productionVSAvoidintensity of three-dimensional visual effect
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent transforms standard two-dimensional video parameters into stereoscopic three-dimensional parameters through computational processing. By applying depth maps, disparity adjustments, and view synthesis algorithms to the single-camera footage, the system generates artificial depth perception and creates left-right eye view pairs, thereby enhancing the three-dimensional visual effect intensity without requiring expensive multi-camera equipment.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9973742B2Methods and apparatus for preparation of casual stereoscopic video
Publication Date: 2018.05.15 ADOBE INC
  • US9973742B2 patent drawing
  • US9973742B2 patent drawing
  • US9973742B2 patent drawing

AI summary

A pair of video streams is prepared for stereoscopic display. A pair of frames is rectified. Each of the pair of frames is from a respective stream of the pair of video streams. A reduced video stream is generated by removing from one of the pair of video streams a set of correlative data that is present in or can be predicted from the other of the pair of video streams. The reduced video stream and the other of the pair of video streams are compressed for use in stereoscopic display of the reduced video stream and the other of the pair of video streams.