Image Generating Apparatus Viewpoint Displacement Latency
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Solution Overview
Problem
Existing stereoscopic video generation techniques face challenges in maintaining high-quality image display with reduced latency when the viewer's viewpoint moves, often resulting in image degradation due to complex processing requirements and manipulation of parallax images.
Innovation Solution
An image generating apparatus and method that calculates pixel displacement in original images based on viewer movement, synthesizes color values using a color map, and determines display image pixels to maintain stereoscopic visibility without significant latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If complex processing is applied to generate accurate parallax images with viewpoint movement, then image quality and accuracy are improved, but processing time increases causing display delay
Solution Approach 1:
The patent segments the image generation process into distinct stages: generating a first parallax image from the left original image, generating a second parallax image from the right original image, and then synthesizing these to create the final stereoscopic image. This segmentation allows each stage to be optimized independently, reducing overall processing time while maintaining accuracy.
Solution Approach 2:
The patent performs preliminary actions by generating the first and second parallax images from the original left and right images before the actual stereoscopic synthesis. These pre-generated parallax images are stored and can be quickly retrieved and combined when viewpoint movement occurs, avoiding the need to perform complex transformations in real-time.
2Measurement precision
If multiple manipulations are applied to original parallax image data to achieve viewpoint displacement, then stereoscopic viewing accuracy is improved, but image degradation likelihood increases
Solution Approach 1:
The patent introduces an intermediary color map that stores color values for pixels expressing identical images at different time points. This color map acts as a mediator between the original parallax images and the final display image, allowing viewpoint displacement to be achieved by referencing and synthesizing color values from the color map rather than manipulating the original image data directly multiple times.
Solution Approach 2:
The patent creates copies of color values from the original parallax images and stores them in the color map. When viewpoint displacement is needed, the system references these copied color values from the color map and synthesizes new display images through color value combination rather than repeatedly manipulating the original image data, thereby preserving image quality.
Data Source
AI summary
A position and posture acquiring section 250 of an image generating apparatus 200 acquires information related to the position and posture of the user's head. A view screen control section 252 sets a view screen corresponding to a viewpoint of the user. An original image manipulating section 254 determines displacement of pixels and acquires color values for an image corresponding to the viewpoint of the user such that an object appears fixed according to movement of the viewpoint of the user, and performs synthesis of color values in a color map corresponding to the viewpoint of a preceding frame, to acquire a new color map. A display image generating section 268 determines a value for each of the pixels in the view screen in accordance with a color map for a corresponding position to generate a display image. An output section 270 outputs the display image.