Takashi Totsuka

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Scratches on old films must be removed since these are more noticeable on higher definition and digital televisions. Wires that suspend actors or cars must be carefully erased during post production of special effects shots. Both of these are time consuming tasks but can be addressed by the following image restoration process: given the locations of noisy(More)
The Fourier projection-slice theorem allows projections of volume data to be generated in O(n 2 logn) t i m e f o r a v ol-ume of size n 3. The method operates by extracting and inverse Fourier transforming 2D slices from a 3D frequency domain representation of the volume. Unfortunately, these projections do not exhibit the occlusion that is characteristic(More)
Hierarchical N-body methods, which are based on a fundamental insight into the nature of many physical processes, are increasingly being used to solve large-scale problems in a variety of scientific/engineering domains. Applications that use these methods are challenging to parallelize effectively, however, owing to their nonuniform, dynamically changing(More)
Hierarchical N-body methods, which are based on a fundamental insight into the nature of many physical processes, are increasingly being used to solve large-scale problems in a variety of scientific/engineering domains. Applications that use these methods are challenging to parallelize effectively, however, owing to their nonuniform, dynamically changing(More)
This paper describes a new algorithm for image noise removal for a particularly difficult but important type of noise. The noise is in the form of many contiguous pixels. It may be in an area of image which is textured and has prominent edges. Scratches in old films and photographs and wires used in special effects movie scenes are important examples of(More)