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Image synthesizing for all-weather outdoor scenes.

J Y Tang, Z Q Sang

|March 28, 2008

Summary

This study presents an efficient method for outdoor image synthesis using a linear combination of basic images. The technique allows for generating realistic images under various weather conditions by calculating coefficients based on sun position and atmospheric visibility.

Area of Science:

Computer Graphics
Environmental Rendering
Image Synthesis

Background:

Outdoor scene rendering is challenging due to complex geometry, lighting interactions, and atmospheric effects.
Existing methods struggle to efficiently simulate diverse environmental conditions.

Purpose of the Study:

To develop an efficient method for lighting simulation and image synthesis of outdoor scenes.
To enable the generation of realistic images under all weather conditions.

Main Methods:

Image synthesis using a linear combination of basic images.
Calculating coefficients for basic images based on Sun position and sky conditions, leveraging illumination function linearity.
Addressing the relationship between visibility distance, image contrast, and resolution.

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Main Results:

An efficient method for synthesizing outdoor images is presented.
The approach allows for image generation under various Sun positions and sky situations.
The method enables image generation across different weather conditions by considering visibility, contrast, and resolution.

Conclusions:

A uniform formula for image synthesis is feasible for fixed scene and camera geometry.
The proposed method offers an efficient and versatile solution for outdoor image synthesis.