The signal-to-noise (S/N) ratio the software does a selection of control points on the image for the subsequent framesĮqualization and stacking moreover indicates a percentage of resolution increasing and can do wavelets processing.Ī footage imaged with a good seeing shall have more frames selected and stacked, being the S/N higher than a typical bad seeing result. The Registax processing is based on the selection of the best frames of the footage, which are stacked together to maximise The Philips SPC900NC webcam equipped with its Sony ICX098 1/4' CCD can produce footages of up to 90 frames per second (fps), depending on the subject illumination (ultimately on chip sampling) the webcam control software allows to use the manual or the automatic setting of imaging parameters.Īctually the higher is the frames rate, the better the seeing affecting the image quality can be theoretically frozen. The high resolution technique development was based on Registax 5 processing of MPEG footages at given frame rates, whose results are post-processed with the IRIS program. Refractor telescopes (with lenses ) instead have no optical obstruction and a sealed tube, generally performing better than open reflectors.

In principle, the resolution is regulated by the diameter D of the scope via the Dave's formula, and is greater for greater apertures but sensor's pixel dimensions, the air movement inside the instrument or over the depth of the atmosphere (the latest called seeing) and the telescope's obstruction (a secondary mirror), actually is lowering the theoretical resolution. Starting with a Philips SPC900NC webcam coupled with the Vixen 140 mm refractor telescope, as well as a QHY5V imaging camera, to the main telescope at the observatory, a 300 mm Newton reflector, having a QHY6 camera, many experience was gained in 20+ years. Is the enhancing of resolution on astronomical pictures imaged with different telescopes and sensors. has increased its expertise in the digital processing of electronic imaging the actual field of application High resolution page High Resolution page

Reflector 3 obs 1 fps