Tone-mapping for an HDR surveillance system using SIFT features
Tone-mapping for an HDR surveillance system using SIFT features
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DOI：
10.5281/zenodo.43733
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发表时间：
2013-09
期刊：
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通讯作者：
Takao Jinno;Shigeru Kuriyama;M. Okuda
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文献类型：
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作者：
Takao Jinno;Shigeru Kuriyama;M. Okuda
本文提出了一种用于高动态范围（HDR）监控系统的色调映射方法，可以提高系统中 SIFT 目标跟踪的准确性。 HDR 监控系统可以存储整个辐射范围的微小细节，而不会出现曝光过度或曝光不足的情况。虽然微小的细节可以提高目标检测和跟踪的准确性，但我们在将它们用于现有的 SIFT 时遇到了一些问题。 HDR 内容应在计算 SIFT 特征之前进行色调映射，因为 SIFT 是为常见的低动态范围 (LDR) 内容设计的。大多数传统的色调映射方法在色调映射过程中会丢失微小的细节，或者降低跟踪的准确性，因为它们还会增强噪声和无效特征。我们提出了使用 SIFT 特征的 HDR 监控系统的色调映射方法，该方法可以增强微小细节而无需无效特征。
This paper proposes a tone-mapping method for High Dynamic Range (HDR) surveillance systems, which can improve the accuracy of SIFT object tracking in the systems. HDR surveillance systems can store minute details for the whole radiance range without over- or under-exposure. Although the minute details can be able to increase the accuracy of object detection and tracking, we have some issues of using them to existing SIFT. HDR contents should be tone-mapped before calculating SIFT feature since SIFT is designed for common Low Dynamic Range (LDR) contents. Most of conventional tone-mapping methods lose the minute details through the tone-mapping process, or degrade the accuracy of tracking since they also enhances the noise and invalid features. We propose the tone-mapping method for HDR surveillance system using SIFT features, which can enhance the minute details without invalid features.