ONE-STEP AND TWO-STEP CALIBRATION OF A PORTABLE PANORAMIC IMAGE MAPPING SYSTEM

Image-based Modeling Using a Two-step Camera Calibration Method

We present a two-step camera calibration process based on linear least squares formulations. We show how to apply this process to build an integrated modeling environment, in which a scene is modeled by having the user specify, on a given image, a set of reference points (used for camera calibration) and object points (used for positioning the objects in the scene). Once this has been done, syn...

Dimensional accuracy of three impression materials by one-step and two-step impression techniques: An in vitro study

Introduction: An accurate impression is essential to create a well-fitted dental prosthesis. This study aimed to compare the dimensional accuracy of three elastomeric materials using one-step and two-step impression techniques. Methods: In this study, 20 impressions were fabricated for each Vinyl siloxane ether (Identium), condensation silicone (Speedex), and a...

One-step and two-step bait fishing: Evaluation of results

The evaluation of the SILAC AP-MS experiments required a threshold for the SILAC ratio to define when an identified protein should be considered a contaminant or putative interaction partner. Other studies apply a statistical measure such as the Grubbs outlier test [1] or the z -test [2] to measure whether the deviation of a SILAC ratio is significant. These tests presuppose that the parameter ...

One step forward

One-step versus two-step culture of mouse preimplantation embryos.

BACKGROUND A comparison has been made of the development of mouse zygotes in either one-step or two-step culture systems. METHODS Embryo culture, blastocyst cell counts and embryo transfer were done. RESULTS No significant differences were observed in the proportions of blastocysts, rates of hatching, numbers of cells in the inner cell mass (ICM) and trophectoderm (TE) that developed in pro...