時空間解像度の異なる動画像を用いた高解像度高フレームレート撮影と露光量確保の両立
| Autor: | Naokazu Yokoya, Takeo Azuma, Tomokazu Sato, Taro Imagawa |
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| Jazyk: | japonština |
| Rok vydání: | 2010 |
| Předmět: |
画像復元
Motion compensation business.industry Computer science ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION 光量不足 動きぶれ除去 Computer Science Applications Video compression picture types Compensation (engineering) 超解像 Video tracking Media Technology Computer vision Video denoising Artificial intelligence Minification Electrical and Electronic Engineering Multiview Video Coding business 感度改善 Block-matching algorithm |
| Zdroj: | 映像情報メディア学会誌. 63(8):1139-1148 |
| ISSN: | 1881-6908 |
| Popis: | We propose a high-resolution and high-frame rate video imaging method in dark conditions. The proposed method consists of two steps. First, we acquired a pair of video sequences that took the same scene with different spatio-temporal resolution. One was a long exposure video sequence with high-resolution and low-frame rate. The other was a short exposure video sequence with low-resolution and high-frame rate. Second, we mutually compensated spatio-temporal information between the two video sequences since the long exposure made motion blurs and the low-resolution imaging made spatial blurs. The compensation was performed by minimization of cost function. Our method significantly reduced those blurs because the lack of information in one video sequence causing such blurs was compensated by the other one. In this paper we show the advantages of our method using both simulation and a prototype camera system. |
| Databáze: | OpenAIRE |
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