Video luminance transient improvement using difference-of-Gaussian
文献类型：会议论文
| 作者 | Wang Yangang; Chen Xi ; Han Hua; Peng Silong; Yangang Wang
|
| 出版日期 | 2009 |
| 会议日期 | 2009/10/8-2009/10/10 |
| 会议地点 | 中国Shanghai China |
| 关键词 | Video Enhancement Luminance Transient Improvement Difference-of-gaussian |
| 页码 | pp 249-253 |
| 英文摘要 | Luminance Transient Improvement (LTI) technique is widely used to enhance the sharpness of digital images or videos. In this paper a high-performance and low-complexity LTI method is proposed for practical video processing applications. Utilizing the favorable characteristics of Gaussian function the proposed algorithm generates the correction signal using the difference of the outputs of two Gaussian filters with different variances and then modulates the correction signal adaptively according to the local contrast information of images or video frames. It finally utilizes a 2-D min/max nonlinear filter to suppress overshoots and undershoots appearing around edges in the video frame. And the critical modules are analyzed for practical hardware implementation for their simplicity. The performance of the method are highly confirmed by practical experimental results and proven to be effective and efficient in making steeper edges and improving the visual quality of images or video frames while suppressing noise and reducing artifacts to a desired extent. |
| 源URL | [http://ir.ia.ac.cn/handle/173211/12878]  |
| 专题 | 类脑智能研究中心_微观重建与智能分析 |
| 通讯作者 | Yangang Wang |
| 推荐引用方式 GB/T 7714 | Wang Yangang,Chen Xi,Han Hua,et al. Video luminance transient improvement using difference-of-Gaussian[C]. 见:. 中国Shanghai China. 2009/10/8-2009/10/10. |
入库方式： OAI收割
来源：自动化研究所
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