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The Badlands Drumheller , Alberta, Canada

The Badlands Drumheller , Alberta, Canada. WORLD’S LARGEST DINOSAUR MUSEUM. Paleontology and Polynomials.

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The Badlands Drumheller , Alberta, Canada

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  1. The Badlands Drumheller, Alberta, Canada

  2. WORLD’S LARGEST DINOSAUR MUSEUM Paleontology and Polynomials Visualization and data analysis are central in modern paleontology, both for analysis of thousands of fossils with respect to evolution and environment, and more focused studies of taxonomy and ecology. 

  3. PTM is basically a simple idea. Light striking a surface at an angle will reveal texture on that surface. PTM is a new way of increasing the photorealism of texture maps. Light coming from different angles and directions will disclose different parts of the texture. In PTM, the light sources are precisely placed to cover a lighting hemisphere. The point sources impinge from near the horizon to near vertical and from all points of the compass. Mathematically, one needs at least six lights with more lights providing more detail. Polynomial Texture Mapping

  4. A PTM can be constructed from real world data by taking multiple pictures of some texture of interest, from a fixed camera position, with a light placed in different positions. The position of the light should be known for each picture taken. Next, we represent each pixel independently with a simple biquadratic polynomial. This is done by using the polynomial to approximate the luminance of each texel and keeping the chrominance constant. The result is a texture map that properly reproduces the effects of surface variations in the illuminant direction relative to the object.

  5. The known light vectors are used to find a least squares fit to the linear system seen below: The known light vectors are used to find a least squares fit to the linear system seen below:

  6. APPLICATIONS OF Polynomial Texture Mapping Archeology and Paleontology have utilized PTMs to improve visualization of clay tablets and fossils Art World Applications Forensics Footwear/tire impressions Cartridge case comparisons Indented writing PTM technique can be applied to most applications utilizing oblique light

  7. Paleontologists study and classify fossils of plants and animals to further understanding of the history and development of various life forms on Earth. Paleontologists conduct different experiments in order to determine the relative age, evolution, disease, behavior, living conditions and various other descriptive information about fossilized life forms. Many of their results are shared with other social scientists in order to find out as much as possible about life during a particular time period.

  8. PALEONTOLOGIST In the U.S., paleontologists may need the following education and training: a bachelor's degree in geology or geophysics is sufficient for most entry-level jobs. Candidates with a background in physics, chemistry, mathematics, or computer science may also be eligible these positions. a Ph.D. is required for most research positions at colleges and universities

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