Video recording in high dynamic range scenes

Wen Chung Kao, Chih Hsiang Huang, Guan Fan Wu, Chung Yen Su, Pei Yung Hsiao

研究成果: 書貢獻/報告類型會議貢獻

1 引文 斯高帕斯(Scopus)

摘要

Recording video in high dynamic range (HDR) scenes usually suffers from the trouble of getting poor contrast videos. In this paper, an integrated signal processing system, which remaps the image to enhance video visibility, is presented. The system extracts pixel local contrasts and nonlinearly stretches the dynamic range of pixel contrast values through histogram equalization. Undesired artifacts in the contrast map are then smoothed by a similar filter, which averages the pixel luminance values only when colors of neighboring pixels are similar to the central one. The luminance value for a pixel is then replaced by the geometric mean of its original value and smoothed contrast value. Finally, the photographic tone reproduction algorithm normalizes pixel values such that the average of log luminance values in the entire video frame is around 18% gray tone. The proposed approach shows better performance in both tone and color reproduction compared with other popular approaches.

原文英語
主出版物標題1st International Conference on Green Circuits and Systems, ICGCS 2010
頁面683-686
頁數4
DOIs
出版狀態已發佈 - 2010 九月 20
事件1st International Conference on Green Circuits and Systems, ICGCS 2010 - Shanghai, 中国
持續時間: 2010 六月 212010 六月 23

出版系列

名字1st International Conference on Green Circuits and Systems, ICGCS 2010

其他

其他1st International Conference on Green Circuits and Systems, ICGCS 2010
國家中国
城市Shanghai
期間10/6/2110/6/23

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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  • 引用此

    Kao, W. C., Huang, C. H., Wu, G. F., Su, C. Y., & Hsiao, P. Y. (2010). Video recording in high dynamic range scenes. 於 1st International Conference on Green Circuits and Systems, ICGCS 2010 (頁 683-686). [5542976] (1st International Conference on Green Circuits and Systems, ICGCS 2010). https://doi.org/10.1109/ICGCS.2010.5542976