Sentence examples for polar image from inspiring English sources

After shifting the center of the image to the center of the pupil, a polar image can be determined by a Cartesian to polar coordinate transformation.

Two novelties on the algorithms are proposed in this case: polar image transformations to better exploit the circular feature of the head appearance and multispectral image derivatives that catch not only luminance but also chrominance variations.

Image processing is applied to IVOCT data in the polar image domain.

In brief, stent struts are detected through individual A-line analysis in the polar image domain (Fig. 4a ).

The IV-OCT imaging catheter appears as multiple bright concentric circular rings (equivalent to vertical lines in the polar image domain).

—Alfred Lord Tennyson, Locksley Halll" —Wendell Berry, "The Mad Farmer Liberation Front" These poems reflect polar images of science and technology in western societies.

"The polar images demonstrate again that understanding Mars' complicated history requires studying many areas in detail, just as understanding the Earth does," Thomas says.

Individual images of the binocular pair were converted to multi-resolution pyramids bearing a coarse-to-fine architecture (low resolution to high resolution) and disparity estimation on these pyramidal resolutions was performed using normalized cross correlation on the log polar images.

The polar images from the Next Wave feature index page were created by Planetary Visions for the exhibition Arktis-Antarktis, presented at the Kunst- und Ausstellungshalle der Bundesrepublik Deutschland, Bonn, December 1997 to April 1998, and were used here by friendly permission.

This display was used because it avoids having a large central empty space at the catheter position, but it produces a transverse distortion of the image with increasing axial distance or depth but enables more efficient visualization than polar images.

This work presents a real-time active vision tracking system based on log-polar image motion estimation with 2D geometric deformation models.