O olho humano é um exemplo péssimo de design, mas mesmo assim...

segunda-feira, junho 29, 2009

Os críticos e oponentes do Design Inteligente sempre trazem à baila que o olho é um exemplo mor de péssimo design, e que qualquer engenheiro, segundo Reinaldo José Lopes, do G1, faria um olho melhor do que nós temos. Eu ainda ainda não vi nenhum desses engenheiros com um design de olho melhor do que o que nós temos.

Além disso, os críticos e oponentes do Design Inteligente dizem que a TDI impede o avanço da ciência. Nós propomos que sinais de inteligência são empiricamente detectados na natureza. E o que fazem os cientistas? Vão à natureza, detectam esses sinais, e tentam aplicá-los para o benefício da humanidade.

É o caso aqui do olho humano inspirar os cientistas na elaboração de visão avançada nos computadores:

Human Eye Inspires Advance In Computer Vision

ScienceDaily (June 22, 2009) — Inspired by the behavior of the human eye, Boston College computer scientists have developed a technique that lets computers see objects as fleeting as a butterfly or tropical fish with nearly double the accuracy and 10 times the speed of earlier methods.

The linear solution to one of the most vexing challenges to advancing computer vision has direct applications in the fields of action and object recognition, surveillance, wide-base stereo microscopy and three-dimensional shape reconstruction, according to the researchers, who will report on their advance at the upcoming annual IEEE meeting on computer vision.

BC computer scientists Hao Jiang and Stella X. Yu developed a novel solution of linear algorithms to streamline the computer's work. Previously, computer visualization relied on software that captured the live image then hunted through millions of possible object configurations to find a match. Further compounding the challenge, even more images needed to be searched as objects moved, altering scale and orientation.


Inspired by the behavior of the human eye, Boston College computer scientists have developed a technique that lets computers see objects as fleeting as a butterfly or tropical fish with nearly double the accuracy and 10 times the speed of earlier methods. (Credit: Hao Jiang, Boston College)

Rather than combing through the image bank – a time- and memory-consuming computing task – Jiang and Yu turned to the mechanics of the human eye to give computers better vision.

"When the human eye searches for an object it looks globally for the rough location, size and orientation of the object. Then it zeros in on the details," said Jiang, an assistant professor of computer science. "Our method behaves in a similar fashion, using a linear approximation to explore the search space globally and quickly; then it works to identify the moving object by frequently updating trust search regions."

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