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Technical Program
Paper Detail
| Paper: | MA-P5.11 |
| Session: | Image Representation, Rendering, Display, and Assesment |
| Time: | Monday, October 9, 09:40 - 12:20 |
| Presentation: |
Poster
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| Title: |
RAPID AND RELIABLE DETECTION OF FILM GRAIN NOISE |
| Authors: |
Peter Schallauer; Joanneum Research | | | | | Roland Mörzinger; Joanneum Research | | |
| Abstract: |
The knowledge of material specific film grain characteristics can significantly improve the performance of digital film processing algorithms. This paper proposes a rapid and reliable detector for film grain properties. First, homogeneous blocks concerning intensity and texture are determined by a novel measure calculated in the frequency domain. Second, based on these blocks the signal-dependent grain noise level is estimated and an image region of pure film grain is detected. Evaluation based on a wide range of structured images with high frequent electronic noise and low frequent film grain, shows that the method performs with a worst case estimation error of 2.54 dB in typical movie quality (PSNR of 25-40 dB). This meets the requirements of real applications such as digital film restoration and special effects compositing. |
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