刑事技术Issue(1)：84-86,3.DOI:10.16467/j.1008-3650.2016.01.020
高光条件下视频人像处理方法研究
Methods on Processing Human Video Images under High Light Conditions
摘要
Abstract
ABSTRACT:ObjectiveUnder high light conditions, human video images are often blurred, resulting in the details to be lost, therefore, a study on processing methods of human video images under high light is conducted in this paper.MethodsFirstly, the problems of human video images under high light are analyzed in detail. Secondly, the lfow chart for processing human video image is presented. The methods on how to process the high light human video images are described under normal and/or infrared monitor mode. Finally, the speciifc processing methods are introduced. The human video images of high quality, less affected by high light and their key frame of larger size, are picked out. In spatial domain, curve adjustment and gamma correction have been used for enhancing the high light human images. And so have that in frequency domain with utilization of high pass and/or homomorphic ifltering.ResultsFor the high light human images video, it is necessary to enhance the original high light human images before their reconstructing and synthesizing. For facial details missing, it is better for human images to inhibit high light on comparison of the reconstructed and synthesized human images with the original ones. From the processing effect, the methods established for enhancing human images in frequency domain are suggested. Compared to the color video ones, the infrared human video images lose their color. It is indispensable for the processing to conduct curve adjustment or gamma correction before sharpening in enthancement by high pass ifltering. In some cases, the processed results by gray imaging are clearer than by color handling. Thus, conversion of the color image to grayscale one is optional sometimes.Conclusion The right way for processing high light human video images can provide more accurate clues for video investigation. The methods proposed here could improve the visual effect of high light human images.关键词
图像处理/视频人像/人像重建/人像增强/高光条件Key words
image processing/human video image/reconstructing human image/enhancing human image/high light分类
社会科学引用本文复制引用
廖广军,邱文敏,周吴灯..高光条件下视频人像处理方法研究[J].刑事技术,2016,(1):84-86,3.基金项目
广东省教育厅特色创新类项目；广东省公安厅科技计划项目（TKY2015002）；广东警官学院教师创新团队建设计划项目 （）
