The technology enhances video without upping power
Hitachi's approach focuses on video processing. Instead of processing the entire image as a whole, it analyses individual characteristics and enhances whatever is necessary.
"Most manufacturers simply increase the power source for the light projection to improve visibility," said Masayuki Yoshida, spokesman at the company's R&D headquarters. "Hitachi's technology does not change the power of the light, but it won't make dark regions of an image completely black or lighter regions washed out."
Hitachi researchers developed an algorithm that is based on a model of how the human eye and brain perceive colors and light known as the Retinex Theory. It processes brightness, resolution, and color composition and makes individual adjustments for each.
The results include the enhancement of dark areas in a video without affecting brighter ones, and object outlines are better defined so they appear more distinctly.
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