3 papers
cs.CV2022
Scribble2D5: Weakly-Supervised Volumetric Image Segmentation via Scribble Annotations
Qiuhui Chen, Yi Hong
Recently, weakly-supervised image segmentation using weak annotations like scribbles has gained great attention, since such annotations are much easier to obtain compared to time-c…
cs.IT2012
Amplitudes of mono-components and representation by generalized sampling functions
Qiuhui Chen, Luoqing Li, Yi Wang
A mono-component is a real-valued signal of finite energy that has non-negative instantaneous frequencies, which may be defined as the derivative of the phase function of the given…
cs.IT2012
Sampling Error Analysis and Properties of Non-bandlimited Signals That Are Reconstructed by Generalized Sinc Functions
Youfa Li, Qiuhui Chen, Tao Qian +1
Recently efforts have been made to use generalized sinc functions to perfectly reconstruct various kinds of non-bandlimited signals. As a consequence, perfect reconstruction sampli…