Unlock instant, AI-driven research and patent intelligence for your innovation.

A processing method and device for terrain texture map

A technology of texture mapping and processing methods, applied in image data processing, 3D image processing, instruments, etc., can solve problems such as inability to express roughness, achieve the effect of improving three-dimensionality and realism, and enhancing fidelity

Inactive Publication Date: 2016-03-09
CHINA DIGITAL VIDEO BEIJING
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because ordinary texture technology actually only considers the color texture of the surface of the object, that is, it can only depict various pre-defined patterns on the smooth surface, and cannot express the roughness due to the uneven microscopic geometry of the surface.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A processing method and device for terrain texture map
  • A processing method and device for terrain texture map
  • A processing method and device for terrain texture map

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] refer to figure 1 , shows a flowchart of a method for processing terrain texture maps of the present invention. This embodiment mainly processes the original image to obtain a grayscale image, and uses it as a disturbance factor to calculate the normal vector of the new surface, thereby Change the brightness of the image to make the image concave and convex. Described method specifically comprises:

[0047] S101. Determine an illumination model according to the direction angle of the original image irradiated by the light source and the height of the light source;

[0048] Usually the lighting model is formed by providing a series of library functions. It is very convenient to establish the required lighting model according to the scene in use. The lighting model involved in actual use can include ambient light, diffuse light, specular reflection light, etc. Composition, you can also simulate the real lighting effect by setting the light attenuation factor. The illum...

Embodiment 2

[0074] refer to Figure 4 , which shows a structural diagram of a device for processing terrain texture maps according to the present invention, and the device specifically includes:

[0075] The illumination model determination module 401 is used to determine the illumination model according to the direction angle of the original image irradiated by the light source and the height of the light source;

[0076] A grayscale image acquisition module 402, configured to calculate the grayscale value of each pixel in the original image to obtain a grayscale image of the original image; the grayscale image is used as a disturbance factor for processing the original image;

[0077] The normal vector acquisition module 403 is used to calculate the normal vector of the image with concave-convex texture under the action of the current disturbance factor through the surface texture coordinates of the grayscale image and the terrain height value;

[0078] The image generation module 404 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a processing method for a terrain texture map and a processing device. The processing method comprises the following steps: determining an illumination model according to a direction angle of a light source irradiating an original image and the height of the light source; calculating a gray value of each pixel point in the original image so as to obtain a gray image of the original image, wherein the gray image is used as a disturbance factor for processing the original image; calculating normal vectors of an image with concave-convex textures under the action of the current disturbance factor according to the surface texture coordinates of the gray image and the terrain height value; and calculating and generating the image with the concave-convex textures according to the determined illumination model, the normal vectors of the image with the concave-convex textures obtained through calculation and the original image, thereby improving the stereoscopic sensation and the sense of reality of the map.

Description

technical field [0001] The invention relates to the technical field of image-text packaging, in particular to a processing method and device for terrain texture maps. Background technique [0002] Mapping is an important technique in computer graphics and computer visualization. Texture features on the surface of objects of various shapes can be constructed through texture maps. [0003] In computer graphics, how to make objects photorealistic has always been an important research direction. Among them, texture mapping technology can realize the description of object details. However, because ordinary texture technology actually only considers the color texture of the surface of the object, that is, it can only depict various pre-defined patterns on the smooth surface, and cannot express the roughness due to the uneven microscopic geometry of the surface. . [0004] Therefore, a technical problem that needs to be urgently solved by those skilled in the art is: how to inn...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06T15/00G06T15/50
Inventor 王蓓蓓
Owner CHINA DIGITAL VIDEO BEIJING