Science Daily November 13, 2019
Ghost imaging has been limited to stationary objects because it takes a long time to project the sequence of light patterns onto the object that is necessary to reconstruct an image making blurry. The ghost imaging technique forms an image by correlating a beam that interacts with the object and a reference beam that does not interact with te object. Individually, the beams don’t carry any meaningful information about the object. To apply ghost imaging to moving objects researchers in China used a small number of light patterns to capture the position and trajectory of the object. They developed an algorithm to cross correlate this positional information with blurred images captured at different positions, allowing a clear image to be gradually formed. The method relaxes the requirement for fast imaging, allows the image to be reconstructed in a timely manner, the linear algorithm does not require a large amount of computing power and it can be performed with a typical ghost imaging system without any additional devices…read more. TECHNICAL ARTICLE