Punishing those who refuse to participate in common efforts is a known and intensively studied way maintain cooperation among self-interested agents. But this act costly, hence punishers are generally also engaged the original joint venture, become vulnerable, which jeopardizes effectiveness of incentive. As an alternative, we may hire special players, whose only duty watch population punish de...

We present a novel approach to acquisition of range images of objects with non-uniform albedo using a structured light sensor. The main idea is to systematically vary the intensity of the light projector and to form high dynamic scale radiance maps. The range images are then formed from these radiance maps. We tested the method on the objects which have surfaces with very different reflectance ...

One problem of classical phase shifting for optical 3D surface reconstruction is the occurrence of ambiguities due to the use of fringe projection. We generally derive a number-theoretical approach to calculate absolute phase measurements which can be used as a base for a reliable surface reconstruction without any ambiguity. The essence of our method is the application of pattern sequences wit...

This paper deals with self-calibration and its adaptation to structured light vision. A brief survey on selfcalibration for stereovision is first proposed. Then, after having described the geometry of a structured light sensor and the constraints it imposes, a method based on the generation of Euclidean constraints is detailed. It is mainly shown how the projection of a known pattern is used to...

With the aim of providing our structured light sensor with adaptive capabilities, an uncalibrated reconstruction method is presented here. It allows us to simultaneously determine the projection matrices and the co-ordinates of 3-D points in a projective frame by only using pixel correspondences. Then, by translating geometrical knowledge about the scene into mathematical constraints, an Euclid...

CONTEXT: Systematic literature reviews largely rely upon using the titles and abstracts of primary studies as the basis for determining their relevance. However, our experience indicates that the abstracts for software engineering papers are frequently of such poor quality they cannot be used to determine the relevance of papers. Both medicine and psychology recommend the use of structured abst...