Aiming at the real intestinal environment, the commonly used feature extraction algorithms are compared and analyzed.The performances of SIFT, BRISK, ORB and FREAK are evaluated from three aspects: feature extraction time, correct matching rate and attitude estimation accuracy under rotation and scaling transformation.ORB binary feature operator ha
Blunt trauma to the 402 lower urinary tract is usually associated with pelvic fractures.The European Association of Urology (EAU) provides guidelines to diagnose and treat these injuries.The guidelines summarise the available evidence and provide recommendations on diagnosis and treatment of these patients.Therefore, these guidelines are important
Exploring the path and mechanism of marketization level in the effect of foreign direct investment (FDI) on carbon emission performance will help to maximize the stimulation effect of foreign investment on green and low-carbon development.This study used the panel data of 11 provinces and cities in the Yangtze River Economic Belt from 2008 to 2016.
In search for a foundational framework for reasoning about Sesame Oil / Spreads observable behavior of programs that may not terminate, we have previously devised a trace-based big-step semantics for While.In this semantics, both traces and evaluation (relating initial states of program runs to traces they produce) are defined coinductively.On term