Imaging cameras have only finite depth of field and only those objects within that depth range are simultaneously in focus. The depth of field of a camera can be improved by mosaicing a sequence of images taken under different focal settings. In conventional mosaicing schemes, a focus measure is computed for every scene point across the image sequence and the point is selected from that image w...

In this paper, we introduce an audio mosaicing technique based on performing posterior inference on a probabilistic generative model. Whereas previous approaches to concatenative synthesis and audio mosaicing have mostly tried to match higher-level descriptors of audio or individual STFT frames, we try to directly match the magnitude spectrogram of a target sound by combining and overlapping a ...

Image mosaicing is widely used in computer vision applications. In this paper, a new globally consistent image alignment method for video mosaicing is presented. Due to various uncertainties on noise, illumination, andmodeling, the problem of global image alignment is considered as a stochastic estimation problem. The augmented system state consists of the transformation parameters of video ima...

This paper describes a real-time video mosaicing method for digitizing paper documents with mobile and low-resolution video cameras. Our proposed method is based on the structure-from-motion technique with real-time processing. Therefore, it can dewarp an image suffering from perspective deformation caused by a slanted and curved document surface. The curved surfaces are reconstructed as an exp...

3D extended field of views (FOVs) of the internal bladder wall facilitate lesion diagnosis, patient follow-up and treatment traceability. In this paper, we propose a 3D image mosaicing algorithm guided by 2D cystoscopic video-image registration for obtaining textured FOV mosaics. In this feasibility study, the registration makes use of data from a 3D cystoscope prototype providing, in addition ...

Image mosaicing is stirring up a lot of interests in the research community for both its scientific significance and potential spinoff in real world applications. Being able to perform automatic image alignment in a common tonal and spatial reference can trigger a wide range of higher level image processing tasks such as panoramic image construction, scene depth computation, resolution enhancem...

Imaging cameras have only finite depth offield and only those objects within that depth range are simultaneously in focus. The depth of field of a camera can be improved by mosaicing a sequence of images taken under different focal settings. In conventional mosaicing schemes, a focus measure is computed for every scene point across the image sequence and the point is selected from that image wh...

A feature based image mosaicing algorithm is presented in this project. A relaxation based correspondence algrithm is used to first select corresponding corners in two images. RANSAC is used to estimate the homography relating the two images. The estimated homogrphy is refined using Newton's non-linear method. A dynamic programming based blending algorithm was used to seamlessly blend the two i...

The creation of 2D ultrasound mosaics is becoming a common clinical practice with a high clinical value. The next step coming along with the increasing availability of 2D array transducers is the creation of 3D mosaics. In the literature of ultrasound registration, the alignment of multiple images has not yet been addressed. Therefore, we propose registration strategies, which are able to cope ...