Virtual Viewpoint Image Generation Using Instruction Region
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies face challenges in acquiring a virtual viewpoint image showing a subject from a position different from the actual observation position, as they struggle to effectively derive and utilize positional relationship information between observation and instruction three-dimensional regions.
Innovation Solution
An information processing apparatus and method that detects the three-dimensional position and posture of an object in an instruction region, derives the corresponding viewpoint and visual line based on positional relationship information, and acquires a virtual viewpoint image using images from multiple imaging devices, allowing for observation from a different perspective.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If virtual viewpoint images are acquired from positions different from actual observation positions, then the ability to observe subjects from different angles is improved, but the complexity of deriving and utilizing positional relationship information between observation and instruction three-dimensional regions increases
Solution Approach 1:
The patent introduces an instruction three-dimensional region as an intermediary between the observation three-dimensional region and the virtual viewpoint image generation process. This intermediary region serves as a bridge that simplifies the derivation of positional relationships by providing a standardized reference frame. The detection unit detects object positions in this intermediate region, which then facilitates easier calculation of corresponding virtual viewpoints without directly dealing with complex transformations between multiple coordinate systems.
Solution Approach 2:
The patent transitions from two-dimensional image coordinates to three-dimensional spatial coordinates by introducing the instruction three-dimensional region. This dimensional elevation allows for more natural representation of positional relationships and enables the system to handle depth information and spatial transformations more efficiently. The three-dimensional framework provides an additional dimension for defining and calculating viewpoint transformations.
2Measurement precision
If multiple imaging apparatuses are used to capture images for generating virtual viewpoint images, then the quality and accuracy of virtual viewpoint images are improved, but the complexity of processing and coordinating multiple image sources increases
Solution Approach 1:
The patent merges multiple image sources by projecting images from multiple imaging apparatuses onto a unified instruction three-dimensional region. This consolidation approach allows the system to process multiple image inputs as a single coordinated dataset rather than handling them as separate entities. The merging occurs in the three-dimensional space where all image data is transformed to share a common reference frame, simplifying subsequent processing steps.
Solution Approach 2:
The patent creates virtual copies of the observation scene from different viewpoints by generating virtual viewpoint images based on the instruction three-dimensional region. Instead of physically moving imaging apparatuses to capture images from multiple positions, the system creates computational copies of the scene from various virtual perspectives. This copying approach maintains accuracy while avoiding the logistical complexity of coordinating multiple physical devices.
3Adaptability or versatility
If the position and posture of objects are detected in an instruction three-dimensional region with enlarged or reduced relationship, then the flexibility in defining observation regions is improved, but the precision of detecting three-dimensional position and posture increases
Solution Approach 1:
The patent implements a dynamic scaling relationship between the observation three-dimensional region and the instruction three-dimensional region. The enlargement or reduction ratio can be adjusted based on the specific application requirements, allowing the system to adapt to different observation scenarios. This dynamic scaling enables flexible definition of observation regions while maintaining consistent detection capabilities across different scales through the standardized three-dimensional coordinate system.
Data Source
AI summary
An information processing apparatus includes a detection unit that detects a three-dimensional position and a posture of an object in an instruction three-dimensional region having an enlarged or reduced relationship with an observation three-dimensional region in which a virtual viewpoint and a virtual visual line are defined, a derivation unit that derives the viewpoint and the visual line corresponding to detection results of the detection unit depending on positional relationship information indicating a relative positional relationship between the observation three-dimensional region and the instruction three-dimensional region, and an acquisition unit that acquires a virtual viewpoint image showing a subject in a case in which the subject is observed with the viewpoint and the visual line derived by the derivation unit, the virtual viewpoint image being based on a plurality of images obtained by imaging an imaging region included in the observation three-dimensional region by a plurality of imaging apparatuses.