Pictures of the long focal lengths cameras, suffer from the problem of limited depth of field. Consequently, it is often difficult to obtain good focus for all objects in the picture. In this work, the problem of multi focus is solved by taking several pictures with different focus points, and then fusing them together to form a single image using image fusion method. Contrast of the source ima...

Two key points of pixel-level multi-focus image fusion are the clarity measure and the pixel coefficients fusion rule. Along with different improvements on these two points, various fusion schemes have been proposed in literatures. However, the traditional clarity measures are not designed for compressive imaging measurements which are maps of source sense with random or likely random measureme...

Ultrathin transmission metasurface devices are designed on the basis of the Yang-Gu amplitude-phase retrieval algorithm for focusing the terahertz (THz) radiation into four or nine spots with focal spacing of 2 or 3 mm at a frequency of 0.8 THz. The focal properties are experimentally investigated in detail, and the results agree well with the theoretical expectations. The designed THz multi-fo...

A novel method to compute the clarity map from single image based on the local maxima and minima information inside image is proposed in this paper. The well-focused region can be easily identified according to the significant pixels inside the clarity map of image. Our method utilizes the clarity map difference between two source images as the focus criteria to implement multi-focus image fusi...

Image fusion is a process which combines the data from two or more source images from the same scene to generate one single image containing more precise details of the scene than any of the source images. Among many image fusion methods like averaging, principle component analysis and various types of Pyramid Transforms, Discrete cosine transform, Discrete Wavelet Transform special frequency a...

Estimating the wandering visual focus of attention (WVFOA) for multiple people is an important problem with many applications in human behavior understanding. One such application, addressed in this paper, monitors the attention of passers-by to outdoor advertisements. To solve the WVFOA problem, we propose a multi-person tracking approach based on a hybrid Dynamic Bayesian Network that simulta...

It is an issue of ongoing controversy whether the information present at surface structure is sufficient for semantic interpretation or not. In the generative tradition the dominant position is that it is inevitable to enrich this structure with traces, indices etc. — devices that are to be interpreted like variables in logic — and that surface structure has to undergo certain syntactic transfo...

Multi-agent systems form the basis of many innovative large-scale distributed applications. The development of such applications requires a careful balance of a wide range of concerns: a detailed understanding of the behaviour of the abstract algorithms being employed, a knowledge of the effects and costs of operating in a distributed environment, and an expertise in the performance requirement...

Thispaper deals with various Multi-Focus Image Fusion Techniques in image processing.It is based on the perspective that the blurred image looks peculiar because of the degradation of high frequency information. This is generally caused by the camera optics.The reason is that cameras suffer from limited depthoffield and this causes the image to be focused only on selected areas.The main intenti...