An iterative correlation technique with digital image processing in the feedback loop for the detection of small objects in cluttered scenes is proposed. A scanning aperture is combined with the method in order to improve the immunity against noise and clutter. Multiple reference objects or different views of one object are processed in parallel. We demonstrate the method by detecting a noisy a...

due to high speed computer networks, the use of digitally formatted data has increased many folds.the digital data can be duplicated and edited with great ease which has led to a need for effectivecopyright protection tools. digital watermarking is a technology of embedding watermark withintellectual property rights into images, videos, audios and other multimedia data by a certainalgorithm .di...

In dental implantology more than one hundred enossal implant systems are in use. Once embedded, the dental X{ray examination is the most important tool for determing implants' producer, name, and type. In this paper, we present a system for automatical detection and identiication of dental xtures in intraoral X rays (IDEFIX) combining common direct digital image acquisition techniques with spec...

In this paper a method for digitally recording four quarter-reference-waveholograms (by CCD) in a Mach-Zehnder interferometer setup, and reconstructing the object wave-front by numerical method is presented. The terms of direct transmission, auto-correlation and conjugate wave in the four wave reconstruction are cancelled out and only one original object wave is left after overlapping. Reconstr...

A Digital Object (DO) "is a sequence of bits, incorporating work or portion other information in which party has rights interests, there is value". DOs should have persistent identifiers, meta-data and be readable by both humans machines. FAIR DO able to interact with automated data processing systems (De Smedt et al. 2020) while following the (Findable, Accessible, Interoperable Reusable princ...

This paper describes a computational framework for constructing point clouds using digital projection patterns. The basic principle behind the approach is to project known patterns on the object using a digital projector. A digital camera is then used to take images of the object with the known projection patterns imposed on it. Due to the presence of 3-D faces of the object, the projection pat...