Dedicated to the memory of my father, who always pushed me to adquire more knowdlege, while supporting me in doing what I always wanted to do. I will never forget you. Dedicated to the memory of Kazan, who spent countless hours behind me, quietly observing how this thesis was maturing. I will always miss you. Dedicated to my mother, for its eternal love and support. Thanks for being the best mo...

Direction-of-arrival (DOA) estimation is widely applied in acoustic source localization. A multi-frequency model suitable for characterizing the broadband structure signals. In this paper, continuous (gridless) DOA problem with multiple frequencies considered. This formulated as an atomic norm minimization (ANM) problem. The ANM equivalent to a semi-definite program (SDP) which can be solved by...

Combining Doppler and polarimetric information is advantageous for atmospheric studies. On the one hand, Doppler information gives insight into the microphysical and dynamic properties of radar targets, that is, radial velocity and its variability. The polarization diversity, on the other hand, has a strong link to the microphysical properties of targets such as shape and orientation. Polarimet...

Type-based alias analyses allow C compilers to infer that memory locations of distinct types do not alias. Idiomatic reliance on pointers on the one hand, and separate compilation on the other hand, together make it impossible to get this aliasing information any other way. As a consequence, most modern optimizing C compilers implement some sort of type-based alias analysis. Unfortunately, poin...

Multirate iterative learning control (ILC) systems have different sampling rates for feedback online loop and feedforward (or ILC) offline loop. The implementation of multirate ILC requires to downsample the signal first and, after processing, upsample the signal again. In the process of downsampling and upsampling, aliasing and imaging may occur and need to be handled properly. In this paper, ...

In the real world we usually have to rely upon what we can observe about our environment in order to judge our current state. Unfortunately our observations are inherently limited, and this can sometimes cause us to become confused and disorientated, losing track of exactly what state we are in. This confusion is called perceptual aliasing, and it occurs when our observations are not descriptiv...

Arclight, a global illumination lightmap tool based on a texture-space modification of the Photon Mapping algorithm, is developed. A means of achieving distortion free lightmapping is devised by reversing the perspective correct texture transform. Unbiased Monte-Carlo and biased Quasi Monte-Carlo methods are used for evaluation of the General Rendering Equation. The application achieves computa...

Procedural shaders are a vital part of modern rendering systems. Despite their prevalence, however, procedural shaders remain sensitive to aliasing any time they are sampled at a rate below the Nyquist limit. Antialiasing is typically achieved through numerical techniques like supersampling or precomputing integrals stored in mipmaps. This paper explores the problem of analytically computing a ...

Most large-area video projection systems offer only limited spacial resolution. Consequently, images of detailed scenery cannot be displayed at full fidelity. A possible but significantly more costly strategy is a tiled projection display. If this solution is not feasible then either aliasing occurs or some anti-aliasing method is used at the cost of reduced scene quality. In this paper we desc...

Theoretically, the Delft approach of surface-related multiple eliminationcan be applied in three dimension, as long as the sourceand receiver coverage is dense enough. In reality, such a dense coverage is still far from reach, using the available multi-streamer acquisition system. One way to fill the gap is to massively interpolate the missing sources and receivers in the survey, which requires...