273 citations · 487 across the 7 of their papers we have counts for
7 papers
SoftPQ: Robust Instance Segmentation Evaluation via Soft Matching and Tunable Thresholds
Ranit Karmakar, Simon F. Nørrelykke
Segmentation evaluation metrics traditionally rely on binary decision logic: predictions are either correct or incorrect, based on rigid IoU thresholds. Detection--based metrics su…
Image quality measurements and denoising using Fourier Ring Correlations
J. Kaczmar-Michalska, N. R. Hajizadeh, A. J. Rzepiela +1
Image quality is a nebulous concept with different meanings to different people. To quantify image quality a relative difference is typically calculated between a corrupted image a…
Harmonic Oscillator in Heat Bath: Exact simulation of time-lapse-recorded data, exact analytical benchmark statistics
Simon F. Norrelykke, Henrik Flyvbjerg
The stochastic dynamics of the damped harmonic oscillator in a heat bath is simulated with an algorithm that is exact for time steps of arbitrary size. Exact analytical results are…
Power spectrum analysis with least-squares fitting: Amplitude bias and its elimination, with application to optical tweezers and atomic force microscope cantilevers
Simon F. Norrelykke, Henrik Flyvbjerg
Optical tweezers and AFM cantilevers are often calibrated by fitting their experimental powerspectra of Brownian motion. We demonstrate here that if this is done with typical weigh…
Persistent Cell Motion in the Absence of External Signals: A Search Strategy for Eukaryotic Cells
Liang Li, Simon F. Norrelykke, Edward C. Cox
Eukaryotic cells are large enough to detect signals and then orient to them by differentiating the signal strength across the length and breadth of the cell. Amoebae, fibroblasts,…
Self-Organized Criticality in a Transient System
Simon F. Norrelykke, Per Bak
A simple model economy with locally interacting producers and consumers is introduced. When driven by extremal dynamics, the model self-organizes {\em not} to an attractor state, b…