基于多曝光的高动态范围全景图像合成

系统仿真学报 ›› 2015, Vol. 27 ›› Issue (10): 2531-2537.

基于多曝光的高动态范围全景图像合成

权巍, 王颖, 王艳春, 王旭阳, 朱云瑞

长春理工大学计算机科学技术学院, 长春 130022

收稿日期:2015-06-09 修回日期:2015-07-24 出版日期:2015-10-08 发布日期:2020-08-07
作者简介:权巍(1981-),女,吉林,博士,讲师,研究方向为计算机视觉、数字图像处理;王颖(1992-),女,河南,硕士,研究方向为图像处理、虚拟现实。
基金资助:
吉林省重点科技攻关项目(20140204050GX)

Constructing Panoramic High Dynamic Range Image Based on Different Amounts of Exposures

Quan Wei, Wang Ying, Wang Yanchun, Wang Xuyang, Zhu Yunrui

School of Computer Science and Technology, Changchun University of Science and Technology, Changchun 130022, China

Received:2015-06-09 Revised:2015-07-24 Online:2015-10-08 Published:2020-08-07

摘要/Abstract

摘要： 提出了一种合成高动态范围全景图像的方法。采用传统的多曝光算法,合理选择采样点,分别求取全景相机各子相机的响应曲线;再对不同子相机的响应曲线加权求得全景相机响应曲线;运用空间频率的方法选取一幅模板全景图像,从而完成高动态范围全景图像的合成。实验表明,合成的全景相机响应曲线可以较好地反映全景相机的特性,根据该曲线生成的高动态范围全景图像较好地展现场景细节信息。根据生成的高动态范围全景图像可获得真实场景的光照信息,以便完成虚拟物体的照明,实现虚实融合的光照一致性。

关键词: 高动态范围图像, 全景图像, 响应曲线, 多曝光, 虚实融合

Abstract: A method of constructing panoramic high dynamic range image was proposed. The classical method about different amounts of exposures was adopted by choosing sampling point carefully to generate better response curves for each child camera of the panoramic camera. Weighted method was applied to obtain panoramic response curve based on six response curves of each child camera. According to characteristics of spatial frequency, a template of panoramic image was selected, so as to complete the synthesis of high dynamic panoramic image. Experiments show that the response curve of panoramic camera can better reflect the characteristics, so the generated high dynamic panoramic image shows details of both high light and dark regions. The results can be used to get luminance information of real scenes, so as a result of it, virtual object illuminating can be implemented in order to obtain the illumination consistency.

Key words: high dynamic image, panoramic image, response curve, exposure, fusion reality

中图分类号:

TP391

权巍, 王颖, 王艳春, 王旭阳, 朱云瑞. 基于多曝光的高动态范围全景图像合成[J]. 系统仿真学报, 2015, 27(10): 2531-2537.

Quan Wei, Wang Ying, Wang Yanchun, Wang Xuyang, Zhu Yunrui. Constructing Panoramic High Dynamic Range Image Based on Different Amounts of Exposures[J]. Journal of System Simulation, 2015, 27(10): 2531-2537.

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