Wide-Angle Image Zenith Correction for Cube Map Conversion

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Solution Overview

Problem

Existing spherical imaging devices face challenges in accurately displaying wide-angle images in cube map format due to misalignment and orientation issues, leading to unnatural and uncomfortable viewing experiences.

Innovation Solution

An information processing apparatus and method that performs zenith correction and alignment correction on wide-angle images by rotating them around a vertical axis, converting them into cube map format to ensure proper alignment and orientation, thereby enhancing image visibility and user experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If wide-angle images are directly converted to cube map format without correction, then the conversion process is simple, but the images exhibit misalignment and orientation issues leading to unnatural viewing experience

Engineering Contradiction:
Improveimage alignment precisionVSAvoidimage processing complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies zenith correction and alignment correction as preliminary actions before converting wide-angle images to cube map format. By performing these corrections in advance, the system ensures proper vertical alignment and orientation of structural elements before the final conversion, thereby achieving high alignment precision without complicating the conversion process itself.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The image processing is divided into distinct segments: zenith correction (vertical alignment), alignment correction (rotational orientation), and cube map conversion. This segmentation allows each correction step to be independently optimized and applied, ensuring that vertical lines remain vertical and structural elements are properly oriented before final conversion to cube map format.

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If zenith correction and alignment correction are applied to wide-angle images, then image orientation accuracy is improved, but processing time and computational load increase

Engineering Contradiction:
Improveorientation accuracyVSAvoidimage processing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces complex mechanical image adjustment processes with computational algorithms. By using digital image processing techniques for zenith correction and alignment correction, the system achieves high orientation accuracy without the time-consuming manual or mechanical adjustment processes that would otherwise be required.

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

Data Source

PatentUS20240311955A1Information processing apparatus, information processing system, and information processing method
Publication Date: 2024.09.19 RICOH CO LTD
  • US20240311955A1 patent drawing
  • US20240311955A1 patent drawing
  • US20240311955A1 patent drawing

AI summary

An information processing apparatus includes circuitry to perform correction on a wide-angle image to correct the wide-angle image. The correction involves rotation around a vertical direction as a rotation axis. The circuitry further converts the wide-angle image into a cube map format.