Raster Image 3D Visualization via DEM and HSV Conversion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing raster image technologies, such as ortho-photo images, geological maps, and altitude tints maps, struggle to provide effective three-dimensional visualization without unnaturalness, especially in mountain areas where tree density and color similarity complicate the perception of height and land form.
Innovation Solution
A raster image three-dimensionalization device and method that utilizes DEM data to create enhanced color composite images by matching mesh sizes, generating above-ground and underground opening images, and applying HSV conversion to achieve a natural three-dimensional visual effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If ortho-photo images are used for three-dimensional visualization, then visual appeal and ease of deciphering are improved, but three-dimensionality and ability to grasp geographic state are poor
Solution Approach 1:
The patent combines ortho-photo images with DEM data and multiple processed images (shade image, opening image, inverted opening image, gradient image) to create a composite image that preserves the visual appeal of photographs while adding three-dimensional terrain information through layered integration of multiple data sources
Solution Approach 2:
The patent creates a composite visual representation by integrating multiple types of data (photographic data, elevation data, derivative terrain data) into a single image, analogous to composite materials, where each layer contributes different properties (visual realism, three-dimensionality, terrain detail) to the final result
2Shape
If red relief image maps are used for three-dimensional expression, then three-dimensionality is improved, but naturalness deteriorates due to red-based color
Solution Approach 1:
The patent applies HSV conversion to transform the color representation of terrain features, using hue, saturation, and value adjustments to create three-dimensional expression that preserves natural colors rather than applying artificial red-based coloring, thereby maintaining both three-dimensionality and naturalness
Solution Approach 2:
The patent modifies color parameters (hue, saturation, value) of the composite image to achieve three-dimensional visualization without relying on the red-based color scheme of traditional relief maps, instead using subtle color variations that preserve the natural appearance of the original photograph while encoding elevation information
3Loss of information
If contour maps are used for land form expression, then information completeness is improved, but ease of perception deteriorates due to difficulty in obtaining feeling of unevenness
Solution Approach 1:
The patent uses color variations derived from HSV conversion of terrain data to visually represent elevation and slope information, making the feeling of unevenness immediately perceptible through natural color gradients rather than requiring interpretation of contour lines
Solution Approach 2:
The patent creates visual copies of terrain properties (elevation, slope, opening) as image layers that can be directly perceived, transforming abstract contour line information into visual color and brightness variations that intuitively convey three-dimensional land form characteristics
Data Source
AI summary
The computer main body includes a mesh size matching unit, a shading map generator, a red three-dimensional image generator, a raster image reader, a gradient reader, a floating-sinking degree reader, a first HSV converter, a mesh designator, a shading data reader, a second HSV converter, a hue reader, a first synthesis unit, a second synthesis unit, a third synthesis unit, an image output unit, a register, a color adjuster and the like, and causes the raster image RSGi having an elevation value to be viewed three-dimensionally.