This paper presents several novel structures for conversion between arbitrary sampling rates. The method allows arbitrary number of zeros at multiples of both input and output sampling rates, thus it has both good anti-imaging and good anti-aliasing properties. The novel structures are derived from continuous-time equivalents of CIC and modified comb filters. The implementation can be based on ...

We describe methods for high-performance and high-quality rendering of point models, including advanced shading, anti-aliasing, and transparency. we keep the rendering quality as the previous GPU-based point rendering approaches, while involving normal vector computation for each frame. We also present efficient data structures for hierarchical rendering on modern graphics processors (GPUs). In...

Anti-aliasing in form factor computation and precise determination of shadow boundaries are important issires for Radiosity method. A-Buffer is a technique introduced by Carpenter f o r anti-aliasing in hidden surjiace removal. In this paper, we propose a method based on the A-Bilffer to replace the Zbtlffer in the computation of form factors using the Hemicube f o r anti-aliasing. The method d...

An adaptive amplitude distortion effect for audio production is introduced. We consider a versatile model of multiband waveshaping with a limited set of intuitive parameters. We propose a method for adaptive scaling of the characteristic amplitude distortion transfer function. A number of methods to automate other distortion parameters are explored, such as automatic balance between clean and d...

Introduction: Parallel imaging has been widely used in dynamic MRI for improved spatial or temporal resolution. In this study, we propose a new k-t space sampling trajectory for dynamic parallel imaging techniques. This method applies a random phase modulation to the spatial aliasing of images in temporal domain. As a result, the spatial aliasing induced by k-space undersampling at every time f...

Our recent improvements to volume rendering using splatting allow for an accurate functional reconstruction and volume integration, occlusion-based acceleration, post-rendering classification and shading, 3D texture mapping, bump mapping, anti-aliasing and gaseous animation. A pure software implementation requiring low storage and using simple operations has been implemented to easily support t...

This paper presents an area-filtering algorithm for antialiasing technique of computer graphics images. It can be applied to low-resolution image, which the aliasing effect is more visible. Unlike supersampling technique, which costs too much to do well, this technique is simple and suitable for VLSI implementation. Without changing the current PC-based graphics-hardware architecture, this ‘tec...

In this paper we introduce a method for acceleration of the real time ray tracing by using characteristic traits of visual perception. Ray tracing is a demanding rendering technique which is much slower than currently dominating scanline methods. Performance hit especially arise when we use huge amount of samples for anti-aliasing or other sample-based effects. We show how to decreases number o...

We formulated and implemented a procedure to generate aliasing-free excitation source signals. It uses a new antialiasing filter in the continuous time domain followed by an IIR digital filter for response equalization. We introduced a cosineseries-based general design procedure for the new antialiasing function. We applied this new procedure to implement the antialiased Fujisaki–Ljungqvist mod...

Silhouettes have many applications in computer graphics such as non-photorealistic edge rendering, fur rendering, shadow volume creation, and anti-aliasing. The number of edges, s, in the silhouette of a model observed from a point is therefore useful in analyzing such algorithms. This paper examines, from a theoretical viewpoint, a menagerie of objects with interesting silhouettes (including t...