The Resolution Enhancement tab is used to control the Multi-Frame Super-Resolution processing. It provides an effective means for increasing the native video resolution by utilizing information redundancy between successive frames in a video.
Applications and benefits include:
- noise reduction
- suppression of atmospheric distortions (mirage-like wobbling)
- reduction of compression blocking artifacts
|Resolution Filter - Compact||Resolution Filter - Expanded|
|This slider controls the number of successive frames used by the algorithm. The maximal number of frames can be set by going to Tools > Options > Processing > Cache Size|
This combo box is used to set the upscale factor applied to the input frame by the Multi-Frame Super-Resolution algorithm. Available options depend on the input resolution and can be 1x, 2x, 3x, or 4x.
For example, applying a Super-Resolution factor of 2x to an input video with a resolution of 320x240 results in a video with a resolution of 640x480.
|This slider controls the suppression of outlier-related processing artifacts. The first phase of the Super Resolution algorithm is motion estimation between successive frames. However, this can generate ghosting artifacts in some cases. The Fusion parameter can reduce ghosting|
|This slider can be used to control the tradeoff between sharpness and noise suppression. Settings range from 0 (maximum noise suppression) to 1 (maximum sharpness)|
|ROI Mode||This button allows the user to enhance, preview, and save the ROI with a wider range of Super-Resolution (upscale) factors.|
NOTE: The maximum output video size is 1080p. Hence higher resolution video has a lower available Super-Resolution factor. However, a larger Super-Resolution factor can be set by limiting the video with ROI mode or cropping the video.
- To enhance the precision of the motion estimation, select an ROI which doesn’t contain outliers.
- Choosing the appropriate Frames value can be challenging. The optimal value depends on the desired performance, Super-Resolution upscale factor, and scene dynamics. For static scenes, the best results are achieved by setting the Frames value to 9 or higher and the Super Resolution set to 2x.
- With dynamic scenes, it’s best to start at the lowest setting and work your way up. With static scenes, it’s best to start high and work your way down.
- Super Resolution yields the best results for static scenes when used in conjunction with Deblurring.