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Real time and high-precision optical flow estimation is crucial for analyzing dynamic scenes in computer vision. Although traditional methods are fundamental, they often encounter issues with computation and accuracy, especially when executed on edge devices. The emergence of deep learning has driven the development of this field, providing higher accuracy, but at the cost of sacrificing computati...
Archaeologists have long wondered why the people of Anglo Saxon England began using more silver coins and fewer gold coins between 660 and 750 AD. Researchers in Europe now say they have developed a method to help find the answer. This technology combines laser ablation with traditional trace element analysis to match the isotopic abundance of silver bars in coins with known sources of metal ores ...
The Polish Space Research Center of the Celestial Geodynamics Observatory located in Borowitz near Poznan will enhance its capabilities with a new and powerful laser.The first task of this state-of-the-art device is to enable researchers to accurately track the trajectories of 300 previously identified space debris in no less than six months.Observatory Director Pawe ł Lejba emphasized the i...
1. Research backgroundDirected energy deposition (DED), as an efficient and economical technology in the field of additive manufacturing (AM), is widely used in the manufacturing of metal materials. However, its high heating and cooling rates, as well as significant temperature gradients, often lead to rapid solidification, forming cross layer columnar grains and internal defects, seriously affect...
Researchers from Bayreuth University and Konstanz University are developing new methods to control ultra short laser emission using soliton physics and two pulse combs in a single laser. This method has the potential to greatly accelerate and simplify laser applications.Traditionally, the pulse interval of lasers is set by dividing each pulse into two pulses and delaying them at different, mechani...