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Interest point detectors are important components in a variety of computer vision systems. This paper demonstrates an automated virtual 3D environment for controlling and measuring detected interest points on 2D images in an accurate and rapid manner. Real-time affine transform tools enable easy implementation and full automation of complex scene evaluations without the time-cost of a manual setup. Nine detectors are tested and compared using evaluation and testing methods based on Schmid, Mohr, and Bauckhage (2000). Each detector is tested on the BSDS500 image set and 34 3D scanned, and manmade models using rotation in the X, Y, and Z axis as well as scale in the X,Y axis. Varying degrees of noise on the models are also tested. Results demonstrate the differing performance and behaviour of each detector across the evaluated transformations, which may assist computer vision practitioners in choosing the right detector for their application.

Object inspection is a field of increasing interest for many situations like modification of dry walls done by craftsmen. The main interest here is to locate infrastructural objects inside dry walls where the modification should be made so as to avoid accidents. This paper presents a 3D SAR imaging method for the visualization of the hidden objects including an investigation of polarizational effects for dry wall inspection. The imaging modality behind this approach will be explained in geometry, signal theory, and the used experimental setup. Selected results from a real dry wall setup are shown and explained in detail

An active MIMO system at 360 GHz as a part of the EU FP7 project TeraSCREEN is presented. A combination of geometric focusing in elevation and MIMO based digital beam forming in azimuth will provide real-time 3D images. The MIMO system consists of 16 transmitter and 16 receiver antennas within one single array. This configuration represents a linear array of 256 virtual antennas. This set-up allows an azimuth resolution of 0.078 degrees. To achieve an elevation resolution of 0.15 degrees, the combination of a fast moving plane reflector and a focusing elliptical mirror is used. An FMCW-Radar bandwidth of 30 GHz results in a range resolution of 5 mm. With this system high resolution 3D images can be generated with 4 frames per second. The principle of the system is presented including the functional structure and the hardware design. This is followed by the description of the 30 GHz module, providing the analogue input signal for the submillimeter wave multiplier chain t o achieve a Terahertz signal at 360 GHz