Volume Data Mining Using 3D Field Topology Analysis3
... Hyper Reeb graph (HRG for short hereafter) is an extension of the Reeb graph concept to 3D volume elds [3]. Theoretically, a volume can be decomposed into an in nite number of isosurfaces with dierent target values. The topological feature of each isosurface can be captured by using the Reeb graph ...
... Hyper Reeb graph (HRG for short hereafter) is an extension of the Reeb graph concept to 3D volume elds [3]. Theoretically, a volume can be decomposed into an in nite number of isosurfaces with dierent target values. The topological feature of each isosurface can be captured by using the Reeb graph ...
Texture - Stanford Graphics Lab
... evaluation points to elaborate and expensive schemes for approximating a discrete integral over the area represented by a pixel. This problem is visited many times below. 1.3 Texture Functions The texture function is a fascinating study by itself. Simple analytic functions have some use [Peachey85]. ...
... evaluation points to elaborate and expensive schemes for approximating a discrete integral over the area represented by a pixel. This problem is visited many times below. 1.3 Texture Functions The texture function is a fascinating study by itself. Simple analytic functions have some use [Peachey85]. ...
Introduction to OpenGL - Department of Computing
... • Antialiasing is a technique for reducing the jagged edges (also known as jaggies) created when approximating smooth edges using pixels - short for picture elements - which are confined to a rectangular grid. • Such jaggies are usually the most visible with nearhorizontal or near-vertical lines. ...
... • Antialiasing is a technique for reducing the jagged edges (also known as jaggies) created when approximating smooth edges using pixels - short for picture elements - which are confined to a rectangular grid. • Such jaggies are usually the most visible with nearhorizontal or near-vertical lines. ...
Modeling and Rendering of Nonlinear Iterated Function
... Antialiasing has been done through oversampling. Refinement of objects may stop adaptively as soon as their projection onto the image plane is smaller than a pixel area. For details see [3]. In addition shadow rays are cast to each given light source to determine if a point of intersection is in sha ...
... Antialiasing has been done through oversampling. Refinement of objects may stop adaptively as soon as their projection onto the image plane is smaller than a pixel area. For details see [3]. In addition shadow rays are cast to each given light source to determine if a point of intersection is in sha ...
Holt Geometry 12-7
... changes the size of a figure but not the shape. The image and the preimage of a figure under a dilation are similar. ...
... changes the size of a figure but not the shape. The image and the preimage of a figure under a dilation are similar. ...
Fast Computation of Database Operations using
... The programming model of GPUs is somewhat limited, mainly due to the lack of random access writes. This limitation makes it more difficult to implement many data structures and common algorithms such as sorting. Purcell et al. [30] present an implementation of bitonic merge sort, where the output ro ...
... The programming model of GPUs is somewhat limited, mainly due to the lack of random access writes. This limitation makes it more difficult to implement many data structures and common algorithms such as sorting. Purcell et al. [30] present an implementation of bitonic merge sort, where the output ro ...
Geometric Modeling in Graphics
... Compute edge length data for the vertices on the hole boundary Subdividing triangles of T with barycenter to reduce edge lengths Swapping edges when necessary to maintain Delaunay-like property ...
... Compute edge length data for the vertices on the hole boundary Subdividing triangles of T with barycenter to reduce edge lengths Swapping edges when necessary to maintain Delaunay-like property ...
monitor movement of scanning beam image acquisition device
... devices are possible in Which the optical ?ber is replaced by a micromachined optical Waveguide, or other non-?ber opti cal Waveguide. As another example, a scanning beam device may include a mirror or other re?ective device that may be moved by an actuator to scan a re?ected beam. As yet another ex ...
... devices are possible in Which the optical ?ber is replaced by a micromachined optical Waveguide, or other non-?ber opti cal Waveguide. As another example, a scanning beam device may include a mirror or other re?ective device that may be moved by an actuator to scan a re?ected beam. As yet another ex ...
Document
... • The video controller is an interface between the monitor and the CPU. • The video controller determines many aspects of a monitor's performance, such as resolution or the number of colors displayed. • The video controller contains its own on-board processor and memory, called video RAM (VRAM). ...
... • The video controller is an interface between the monitor and the CPU. • The video controller determines many aspects of a monitor's performance, such as resolution or the number of colors displayed. • The video controller contains its own on-board processor and memory, called video RAM (VRAM). ...
intro(1) - Elearning-KL
... • Once an image is defined as pixel-array, it can be manipulated – Image editing: changes made by user, such as cutting and pasting sections, brush-type tools, and processing selected areas – Image processing: algorithmic operations that are performed on image (or pre-selected portion of image) with ...
... • Once an image is defined as pixel-array, it can be manipulated – Image editing: changes made by user, such as cutting and pasting sections, brush-type tools, and processing selected areas – Image processing: algorithmic operations that are performed on image (or pre-selected portion of image) with ...
Algorithms for Solid Noise Synthesis
... separably interpolated using a cosine-like function. While this approach is considerably more efficient than a cubic spline interpolation, it has stronger directional artifacts (Fig. 2). Another drawback is that the noise value and second-derivative are both zero at the lattice points. The direction ...
... separably interpolated using a cosine-like function. While this approach is considerably more efficient than a cubic spline interpolation, it has stronger directional artifacts (Fig. 2). Another drawback is that the noise value and second-derivative are both zero at the lattice points. The direction ...
What is the minimum height of a plane mirror in which a standing
... much of her time in a small pond in her owner’s backyard. While enjoying a rest at the bottom of the pond, Goldie is being watched by Fluffy the cat, who is perched on a tree limb above the surface of the pond. How far below the surface is the image of the fish that Fluffy sees? A. Above Goldie’s ac ...
... much of her time in a small pond in her owner’s backyard. While enjoying a rest at the bottom of the pond, Goldie is being watched by Fluffy the cat, who is perched on a tree limb above the surface of the pond. How far below the surface is the image of the fish that Fluffy sees? A. Above Goldie’s ac ...
Lecture notes
... – Ideal reconstruction – You can only ideally reconstruct band-limited functions • Otherwise high frequencies alias as lower frequencies when reconstructed ...
... – Ideal reconstruction – You can only ideally reconstruct band-limited functions • Otherwise high frequencies alias as lower frequencies when reconstructed ...
Smart Visibility in Visualization
... e.g., opaque, in order to see its features more clearly. This allows to see all interesting structures irrespective if they are interior or not, and the less important parts are still visible as much as possible. Instead of using constant optical characteristics, which are independent from the viewp ...
... e.g., opaque, in order to see its features more clearly. This allows to see all interesting structures irrespective if they are interior or not, and the less important parts are still visible as much as possible. Instead of using constant optical characteristics, which are independent from the viewp ...
Adding Depth to Cartoons Using Sparse Depth (In)equalities
... to specify absolute depth values but are much more accurate in telling whether some part of the object is in front of another and vice versa. This observation leads us to the formulation of an optimization problem that tries to emulate the human depth reconstruction process. Its key advantage is tha ...
... to specify absolute depth values but are much more accurate in telling whether some part of the object is in front of another and vice versa. This observation leads us to the formulation of an optimization problem that tries to emulate the human depth reconstruction process. Its key advantage is tha ...
Mining Weakly Labeled Web Facial Images for Search Based Face
... challenging problem for search-based face annotation scheme is how to effectively perform annotation by exploiting the list of most similar facial images and their weak labels that are often noisy and incomplete. To tackle this problem, we propose an effective unsupervised label refinement (ULR) app ...
... challenging problem for search-based face annotation scheme is how to effectively perform annotation by exploiting the list of most similar facial images and their weak labels that are often noisy and incomplete. To tackle this problem, we propose an effective unsupervised label refinement (ULR) app ...
Curvature radius analysis for scanning probe microscopy
... are higher than those of the probe. This phenomenon, known as dilation, tends to smooth the surface and equalizes the irregularities [12–15]. In extreme situations, the tip geometry clearly appears on the image [16–18]. This phenomenon known as Ôtip self imagingÕ can involve so called double tip art ...
... are higher than those of the probe. This phenomenon, known as dilation, tends to smooth the surface and equalizes the irregularities [12–15]. In extreme situations, the tip geometry clearly appears on the image [16–18]. This phenomenon known as Ôtip self imagingÕ can involve so called double tip art ...
thesis - Cartography Master
... not only by people with an cartographic background. This demonstrates the relevance of map design for an actually designed product with an highly individual or artistic lookand-feel. These maps are not intended to communicate spatial information in a precise way, but to convey a different meaning th ...
... not only by people with an cartographic background. This demonstrates the relevance of map design for an actually designed product with an highly individual or artistic lookand-feel. These maps are not intended to communicate spatial information in a precise way, but to convey a different meaning th ...
Spatial anti-aliasing
In digital signal processing, spatial anti-aliasing is the technique of minimizing the distortion artifacts known as aliasing when representing a high-resolution image at a lower resolution. Anti-aliasing is used in digital photography, computer graphics, digital audio, and many other applications.Anti-aliasing means removing signal components that have a higher frequency than is able to be properly resolved by the recording (or sampling) device. This removal is done before (re)sampling at a lower resolution. When sampling is performed without removing this part of the signal, it causes undesirable artifacts such as the black-and-white noise near the top of figure 1-a below.In signal acquisition and audio, anti-aliasing is often done using an analog anti-aliasing filter to remove the out-of-band component of the input signal prior to sampling with an analog-to-digital converter. In digital photography, optical anti-aliasing filters are made of birefringent materials, and smooth the signal in the spatial optical domain. The anti-aliasing filter essentially blurs the image slightly in order to reduce the resolution to or below that achievable by the digital sensor (the larger the pixel pitch, the lower the achievable resolution at the sensor level).