3D Image Zoom Mode Selection for Depth Perception
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Solution Overview
Problem
Traditional zoom technologies fail to effectively make objects in 3D images appear closer or farther away by scaling, as they do not account for depth information, leading to a demand for a technology that can manipulate 3D image zooming to enhance depth perception.
Innovation Solution
An image processing apparatus and method that selects between 2D, 3D, and intermediate zoom modes based on depth information, scaling depth information inversely with area size in intermediate mode, shifting depth information in 3D mode, and scaling size proportionally in 2D mode, to maintain stereoscopic perception and minimize distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional zoom technology is applied to 3D images, then the image can be magnified or minified, but depth information is not properly scaled causing distortion and loss of stereoscopic perception
Solution Approach 1:
The patent segments the zoom operation into separate processing steps: first determining the zoom area in 3D space, then independently scaling the color image and depth image, and finally regenerating the 3D image. This segmentation allows traditional zooming capability to be maintained while properly handling depth information through dedicated depth image scaling, thus resolving the contradiction between zooming capability and depth information accuracy.
Solution Approach 2:
The patent changes the parameter approach by introducing a depth image scaling process that adjusts depth values based on the zoom factor. Instead of simply magnifying the 2D image projection, the system modifies the depth parameters of the zoom area in the depth image to correspond to the scaled color image, thereby maintaining accurate depth information while achieving the desired zoom effect.
2Reliability
If 3D zoom mode is used to maintain depth perception, then stereoscopic image quality is improved, but calculation complexity and processing time increase
Solution Approach 1:
The patent applies preliminary action by pre-determining the zoom area in 3D space before performing the actual scaling operations. The system calculates the zoom region's boundaries and depth range in advance, which allows for more efficient processing during the scaling phase. This preliminary preparation reduces the computational burden during the main scaling operation while maintaining high-quality stereoscopic perception.
Solution Approach 2:
The patent uses partial action by selectively applying 3D zoom processing only to the identified zoom area rather than the entire image. The depth image scaling and 3D coordinate transformation are performed only for the relevant zoom region, significantly reducing the overall calculation complexity and processing time while maintaining reliable stereoscopic perception quality in the affected area.
3Device complexity
If intermediate dimensional zoom mode is used, then calculation complexity is reduced, but distortion in the zoom area increases
Solution Approach 1:
The patent implements feedback by continuously monitoring the depth information of the zoom area after scaling. The system checks whether the scaled depth values maintain the necessary stereoscopic perception quality and adjusts the scaling process accordingly. This feedback mechanism allows the system to detect and correct distortions while operating in intermediate dimensional zoom mode, balancing calculation complexity with shape accuracy.
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting the depth scaling factor based on the zoom factor and the identified zoom area. Instead of using a fixed scaling approach, the system modifies the depth parameters adaptively to compensate for potential distortions. This dynamic parameter adjustment allows intermediate dimensional zoom mode to achieve lower calculation complexity while minimizing distortion through intelligent depth value modification.
Data Source
AI summary
An image processing apparatus and method for zooming in on a partial area in a three-dimensional (3D) image selects a zoom mode from among a two-dimensional (2D) zoom mode, a 3D zoom mode, and an intermediate dimensional zoom mode between the 2D zoom mode and the 3D zoom mode. The image processing apparatus may include a mode selecting unit to select a zoom mode to be applied to a zoom area in a color image and a depth image among the 2D zoom mode, the 3D zoom mode, and the intermediate dimensional zoom mode between the 2D zoom mode and the 3D zoom mode, and a scaling unit to scale the zoom area using a zoom factor indicating magnification or minification of the zoom area and the selected zoom mode.