A method for automatically calculating the flight kinematics of a flapping bird flying on a relatively dense background environment was developed. The algorithm is able to calculate the bird’s flapping frequency, wingbeat phase, forward velocity, and forward acceleration with good accuracy with the use of only one camera. Image processing was used for extracting the bird’s silhouette from the b...

The application of gray-scale digitizers to digitization of binary images of straight-edged planar shilhouettes is considered. A measure of digitization-induced ambiguity is introduced. It is shown that if the gray levels are not quantized and the spatial sampling resolution is sufficiently high, error-free reconstruction of the original binary image from the digitized image is possible. When t...

Image registration consists in estimating geometric and photometric transformations that align a template and an image as best as possible. The direct approach consists in minimizing the intensity discrepancy between the aligned template and image. The inverse compositional algorithm has been recently proposed for the direct estimation of groupwise geometric transformations. It is efficient in ...

This paper presents a novel variational model for inverse consistent deformable image registration. This model deforms the source and target image simultaneously, and aligns the deformed source and deformed target images in the way that the both transformations are inverse consistent. The model does not computes the inverse transforms explicitly, alternatively it finds two more deformation fiel...

For uncalibrated visual servoing for image-based dynamic control of robot manipulators, acquiring an image Jacobian matrix (interaction matrix) or its inverse matrix is necessary and difficult. In this paper, a new controller of uncalibrated visual sevro using pseudo inverse of image Jacobian matrix is presented, which based on dynamics of robot manipulators. In this method, camera’s intrinsic ...

In the Pseudo-Multiple-Exposure-Based Tone Fusion with Local Region Adjustment [1], it introduces a framework for inverse tone mapping which uses only one Low Dynamic Range (LDR) image to evaluate High Dynamic Range (HDR) image. First, map LDR image to HDR images using S curve. By changing the parameters of S curve, we can get different EV scenes. Then, segment the image into four different lum...

Image Processing is a structure of Signal Processing for which the input is the image and the output is also an image or parameter of the image. Image Resolution has been frequently referred as an important aspect of an image. In Image Resolution Enhancement, images are being processed in order to obtain more enhanced resolution. To generate highly resoluted image for a low resoluted input imag...

Plenoptic imaging systems with a microlens array imaging the pupil at the sensor typically produce low resolution images. We introduce an inverse problem solver using the system response to obtain high resolution image reconstructions. OCIS codes: (070.0070) Fourier optics and signal processing, (110.1758) Computational imaging, (100.1830) Deconvolution, (100.3010), Image reconstruction techniq...

This paper presents a modified controller and expanded algorithms for automatically positioning cardiac ultrasound imaging catheters within the heart to improve treatment of cardiac arrhythmias such as atrial fibrillation. Presented here are a new method for controlling the position and orientation of a catheter, smoother and more accurate automated catheter motion, and initial results of image...