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Get into Character
Published in Chris Jackson, Flash Cinematic Techniques, 2012
Go to the Library panel. Locate the imported bitmap objects in the Asset folder that was created. ▸ Double-click on the bitmap icon to open the Bitmap Properties dialog box.▸ Check the box for the Allow smoothing option. This applies anti-aliasing to the bitmap. Anti-aliasing maintains the image’s clean edges and prevents pixilation that occurs as the pixels are rotated.▸ Repeat these steps for all imported bitmap images. ▸ Now that your character is imported, let’s “rig” it together using the Bone Tool. “Rigging” is a term used by 3D modelers and animators. Like in our own bodies, our 2D characters are given bones that act as a controlling skeleton structure.
Flight Simulator Research and Technologies
Published in Mark S. Young, Michael G. Lenné, Simulators for Transportation Human Factors, 2017
Barbara G. Kanki, Peter M. T. Zaal, Mary K. Kaiser
Another cue that is typically not veridical is texture gradients. Image generators employ a number of methods to prevent spatial sampling artefacts (called anti-aliasing). Using the most sophisticated, realistic anti-aliasing techniques also reduces the speed of rendering. Aliasing artefacts can reduce the realism of the visual scene, potentially reducing the immersion of the subject. Researchers sometimes need to consider the trade-offs between scene or database detail and artefacts.
Big Data in Medical Image Processing
Published in R. Suganya, S. Rajaram, A. Sheik Abdullah, Big Data in Medical Image Processing, 2018
R. Suganya, S. Rajaram, A. Sheik Abdullah
Anti-aliasing is a process which attempts to minimize the appearance of aliased diagonal edges. Anti-aliasing gives the appearance of smoother edges and higher resolution. It works by taking into account how much an ideal edge overlaps adjacent pixels.
Mathematical modeling of gantry cranes under seismic excitation and verification with shake table tests
Published in Mechanics Based Design of Structures and Machines, 2023
C. Oktay Azeloglu, Hamit Kenan, Ayşe Edincliler
Experimental studies conducted within the scope of the project were carried out at Bogazici University Kandilli Observatory and Earthquake Research Institute, Laboratory of Earthquake Engineering Department, Department of Shaking Table. The shake table used is measured at 0.7 m × 0.7 m and samples up to approx. 150 kg have the capacity to test at 0–50 Hz frequency range with maximum acceleration capacity of 2 g. 16 capacitive PCB 300 and 3000 mV/g nominal calibrated accelerometers of 20 g and 3 g are used on the table. Three laser position gauges were also used in the experiment. These position meters have a measurement range of 20–400 mm, wavelength is 650 nm (visible red light), maximum deviation value is ±0.5% of measured value and response time is ≤20 ms. Data collection and control system is Data Physics 550 WIN system with 16 channels PC base. The system consists of a 16-channel digital control system (1 output, 16 inputs) with anti-aliasing filters, an amplifier, a UPS for process reliability, a control computer and monitor. The Data Physics system provides an anti-aliasing filter for 16 channels. Earthquake records of acceleration are used in programming and controlling the shake table motions.
An electrical stimulation data based model to predict the healing period of fractured limb
Published in Mathematical and Computer Modelling of Dynamical Systems, 2019
P. Madhavasarma, M. Sridevi, S. Kumaravel, P. Veeraragavan
The experimental set-up for fracture healing model analysis is shown in Figure 4. All the patients had an application of electrical voltage in the range of 0.1 to −1.0 V DC in 0.1 V increments, across the two wires on either side of fracture. The output current was recorded by an ammeter connected in series. Ammeter measures the current flow across the fracture .Using the ammeter reading as reference the online data recording of voltage calibration in terms of current is done. The ammeter output was connected to M/s AD Instrumentation 16 channel data acquisition card via signal conditioning unit. The card was connected to the USB port of the Pentium processor with an in-built anti aliasing filter. The card supports 16 ADC and DAC channels in the range of ±15 V. Program was developed in ‘C’ language to read and display the patient’s current rating in terms of mA. The graph was compared with the appearance of new bone formation in X-rays. The above methodology was carried upon 20 different patients at Thanjavur government medical College to predict the exact instance at which a fracture has united completely. In these cases, the healing was followed with clinical assessment and periodical radiographs till the endpoint of fracture union and then the rings were removed. Using online data acquisition system AD Instrumentation 16 channel data acquisition card via signal conditioning unit.
Adaptive phasor estimation technique during off-nominal frequency for numerical relays
Published in Journal of Information and Telecommunication, 2018
Omar Sami Thiab, Łukasz Nogal, Ryszard Kowalik
Converting analog signals to sequences of numerical values passes through below steps. Surge filter: The large inrush in the input analog signals will be suppressed using surge filter for the safety of the digital relay.Anti-aliasing filter: To avoid possible errors in the evaluation of input signal, anti-aliasing filter is used according to the Nyquist criterion.Analog/digital sample and hold: To convert the input signal from analog to digital. To scan the whole signal, a data window of limited length is applied to acquire information on part of the signal. Within the section of the signals that are scanned by the data window, a limited number of points of the waveform are sampled. While the window moving forward, more samples are obtained at different snapshots of time. The sampling window length, numbers of samples in the window, as well as the shape of the sampling window are dependent on the relay algorithm.