Advanced Real-Time Manipulation of Video Streams by Jan Herling PDF

By Jan Herling

Diminished fact is a brand new interesting know-how that eliminates real-world content material from stay video streams. This sensational reside video manipulation truly gets rid of actual items and generates a coherent video flow in real-time. audience can't become aware of converted content material. present techniques are constrained to relocating gadgets and static or virtually static cameras and don't enable real-time manipulation of video content material. Jan Herling offers a brand new and cutting edge strategy for real-time item elimination with arbitrary digicam movements.

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The missing content covered by static background layers is repaired by inpainting [55] the area in the very first video frame. The result of the first frame’s inpainting then is warped throughout the video sequence by application of individual homographies and interpolated at the segment boundaries. A coherent video 34 2 Related Work sequence without the undesired static background object is obtained. However, the video is still damaged as the moving foreground object is missing if it crosses the inpainted background region.

Then, homogenous image parts are inpainted. None of the above presented approaches is suitable for real-time video inpainting. The most obvious problem is that no algorithm is fast enough to be applied in real-time. The few algorithms able to process an inpainting image within a few seconds require explicit user-defined constraints to make a reliable reconstruction of structural information possible. For real-time applications, user-defined constraint are not practical and should be avoided. For high quality manipulation of live video streams, the task is to find a static image processing approach significantly faster than all state-of-the-art approaches producing comparable image quality.

Second, patches (slightly smaller than the original reference frame) are copied from one frame position to another position inside the new synthesized frame. Positioning is determined by a chaos function. Finally, the borders between copied patches are removed by crossedge filtering within a small area around the patch borders. 5 shows synthesis results using their approach. 5: Synthesis results by Xu et al. From left to right: Tiling image, chaos function structure, copying of patches, final result after filtering.

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