Journal ArticleDOI
Display and detail enhancement for high-dynamic-range infrared images
TLDR
A new method of display and detail enhancement for high dynamic range infrared images is presented that effectively maps the raw acquired infrared image to 8-bit domain based on the same architecture of bilateral filter and dynamic range partitioning approach.Abstract:
Dynamic range reduction and detail enhancement are two important issues for effectively displaying high-dynamic-range images acquired by thermal camera systems. They must be performed in such a way that the high dynamic range image signal output from sensors is compressed in a pleasing manner for display on lower dynamic range monitors without reducing the perceptibility of small details. In this paper, a new method of display and detail enhancement for high dynamic range infrared images is presented. This method effectively maps the raw acquired infrared image to 8-bit domain based on the same architecture of bilateral filter and dynamic range partitioning approach. It includes three main steps: First, a bilateral filter is applied to separate the input image into the base component and detail component. Second, refine the base and detail layer using an adaptive Gaussian filter to avoid unwanted artifacts. Then the base layer is projected to the display range and the detail layer is enhanced using an adaptive gain control approach. Finally, the two parts are recombined and quantized to 8-bit domain. The strength of the proposed method lies in its ability to avoid unwanted artifacts and adaptability in different scenarios. Its great performance is validated by the experimental results tested with two real infrared imagers.read more
Citations
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Journal ArticleDOI
Detail enhancement for high-dynamic-range infrared images based on guided image filter
Ning Liu,Dongxue Zhao +1 more
TL;DR: This paper proposes a new method for detail enhancement and noise reduction of high dynamic range infrared images that is significantly better than those based on histogram equalization (HE), and it also has better visual effect than bilateral filter-based methods.
Journal ArticleDOI
Infrared Image Enhancement Using Adaptive Histogram Partition and Brightness Correction
TL;DR: Qualitative and quantitative evaluations implemented on real infrared images demonstrate the superiority of the method when compared with other conventional methods.
Journal ArticleDOI
An improved contrast enhancement algorithm for infrared images based on adaptive double plateaus histogram equalization
TL;DR: Based on the adaptive double plateaus histogram equalization, the authors presented an improved contrast enhancement algorithm for infrared thermal images, where the normalized coefficient of variation of the histogram, which characterizes the level of contrast enhancement, is introduced as feedback information to adjust the upper and lower plateau thresholds.
Journal ArticleDOI
High dynamic range infrared images detail enhancement based on local edge preserving filter
Qiong Song,Yuehuan Wang,Kun Bai +2 more
TL;DR: A new approach to display HDR IR images with contrast enhancement by using the local edge-preserving filter and an adaptive Gamma transformation to adjust the gray distribution of the base layer, and stretch the detail layer based on a human visual effect principle.
Patent
FPGA (field programmable gate array)-based infrared image detail enhancing system and method
Xiubao Sui,Zhao Yao,Chen Qian,Gu Guohua,Huang Xiyan,Tao Yuanrong,Kuang Xiaodong,Shen Xuewei,Ji Tianci +8 more
TL;DR: In this paper, an FPGA (field programmable gate array)-based infrared image detail enhancing system and method is presented. But the system is not suitable for the use of the infrared image.
References
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Proceedings ArticleDOI
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