For user convenience, processing of document images captured by a digital camera has been attracted much attention. However, most existing processing methods require an upright image such like captured by a scanner. Therefore, we have to cancel perspective distortion of a camera-captured image before processing. Although there are rectification methods of the distortion, most of them work under...

This paper describes a real-time vergence control mechanism developed for the stereo head MEDUSA 13], in the context of behavior based active control 3]. Real-time control architectures for active vision impose strong constraints on the computational complexity of image processing algorithms. In many applications, the image size is often drastically reduced in order to achieve fast and reactive...

This paper presents a real-time solution to the problem of obstacle detection in automotive applications using image processing techniques. To speed-up the processing a massively parallel engine has been used and the algorithms tuned to match the speciic features of the computing architecture. The system acquires pairs of stereo images, checks for correspondences, and remaps the resulting image...

Real-Time Machine Vision and Image Processing applications have high computational costs, mainly because of the low speed in common hardware/software architectures. In general, embedded systems implemented with microcontrollers and other Von Neumann-based hardware architectures cannot provide the throughput needed by these applications. Since their creation, the FPGAs (Field-Programmable Gate A...

A digital photogrammetric system, STEREO, was developed to determine three dimensional coordinates of points of interest (POIs) defined with a grid on a textureless and smooth-surfaced specimen. Two CCD cameras were set up with unknown orientation and recorded digital images of a reference model and a specimen. Points on the model were selected as control or check points for calibrating or asse...

Almost all the existing stereo algorithms fall under a common assumption that corresponding color or intensity values will be similar like one another. On the other hand, it is also not that true in practice where the image color or intensity values are regularly affected by different radiometric factors like illumination direction, change in image device, illuminant color and so on. For this i...

Digital cameras are replacing analog film not only on the consumer market. New digital aerial cameras such as Vexcel Imaging UltraCamD or Z/I DMC implement novel concepts that make the changeover to digital photogrammetry possible. The comparison of image quality of these sensors is important when switching from analog to digital. In this paper we propose algorithms of how to assess image quali...

physical properties of fruits and vegetables are the subject of many researches because of its importance in designing of agricultural machinery. banana fruit is one of important fruit. in this study some physical properties of banana fruit (cavendish variety) were determined. properties which were measured included weight of whole fruit peel and pulp weight, dimensions, surface area and projec...

in this work, cofe2o4 nanoparticles have been prepared by co-precipitation technique. the synthesized cofe2o4 nanoparticles were applied in the preparation of cofe2o4/polyacrylonitrile fiber nanocomposites by the electrospinning process. the prepared nanoparticles and nanofibers were characterized using the scanning electron microscopy (sem) and x-ray diffraction methods. the results manifested...