Optimal digitization of 2-d images
نویسندگان
چکیده
منابع مشابه
On optimal image digitization
Nielsen et al. recently addressed the problem of determining the optimal discretization grid and quantization depth when a given bivariate function f (x , y) has to be described with a predetermined number of bits. This was done under the assumption that the function value range and mean " fluctuation rates " in the x and y direction are given, and that ideal point sampling with zero-order-hold...
متن کاملCompression of 2-D Biomedical Images
On a daily basis, large amounts of medical images are acquired using 2D acquisition imaging systems (e.g., vertebra and lung digital X rays, mammography). Moreover, it is possible to compress temporal sequences (i.e. 2D+t), volume sequences (i.e. 3D) or even spatio-temporal sequences (i.e. 3D+t) by encoding each image separately and independently of all others (i.e. in clinical routine, physici...
متن کاملLearning the 2-D Topology of Images
We study the following question: is the two-dimensional structure of images a very strong prior or is it something that can be learned with a few examples of natural images? If someone gave us a learning task involving images for which the two-dimensional topology of pixels was not known, could we discover it automatically and exploit it? For example suppose that the pixels had been permuted in...
متن کاملProjective analysis of 2-D images
Recently, the use of the heatlike equation was extended to the projective case in order to find a projective analysis of curves and images; unfortunately, this formulation leads to a fifth-order partial differential equation (PDE) that is not easy to implement. Thanks to the use of a three-dimensional (3-D)homogeneous representation of a picture, we present here an alternative. Roughly speaking...
متن کاملGenerative Models for 2-D images of 3-D scenes
Generative Models for 2-D images of 3-D scenes Anitha Kannan Doctor of Philosophy Graduate Department of Computer Science University of Toronto 2007 This thesis introduces generative models of appearance for analyzing 2D images of 3D visual scenes. Many 2D images contain multiple objects, where image components corresponding to each object undergo deformations, eg., due to changes in the shape ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Acoustics, Speech, and Signal Processing
سال: 1984
ISSN: 0096-3518
DOI: 10.1109/tassp.1984.1164442