Discrete Analytical Hyperplanes
نویسندگان
چکیده
simulators [9]. There are two main ways of obtaining a DR of a real world object. One is by acquisition with a This paper presents the properties of the discrete analytical hyperplanes. They are defined analytically in the discrete dophysical device like a camera for a 2D DR, a CT or MR main by Diophantine equations. We show that the discrete scanner for a 3D DR, a PET scanner for a 4D DR, etc. hyperplane is a generalization of the classical digital hyperThe second one is by digitizing the primitives forming planes. We present original properties such as exact point localits CAR. ization and space tiling. The main result is the links made Although many papers have dealt with the digitization between the arithmetical thickness of a hyperplane and its of primitives, the problems we have in handling the geometopology. 1997 Academic Press try and topology of the discrete world resulted in a predominant approach: ‘‘a digital primitive is the result of a local approximation process applied to the continuous primi
منابع مشابه
The hyperplanes of DW(5, 2h) which arise from embedding
We show that there are 6 isomorphism classes of hyperplanes of the dual polar space ∆ = DW (5, 2h) which arise from the Grassmannembedding. If h ≥ 2, then these are all the hyperplanes of ∆ arising from an embedding. If h = 1, then there are 6 extra classes of hyperplanes as has been shown by Pralle [23] with the aid of a computer. We will give a computer free proof for this fact. The hyperplan...
متن کاملA simple bijection for the regions of the Shi arrangement of hyperplanes
The Shi arrangement Sn is the arrangement of affine hyperplanes in R n of the form xi−xj = 0 or 1, for 1 ≤ i < j ≤ n. It dissects R n into (n+1) regions, as was first proved by Shi. We give a simple bijective proof of this result. Our bijection generalizes easily to any subarrangement of Sn containing the hyperplanes xi − xj = 0 and to the extended Shi arrangements.
متن کاملThe hyperplanes of DQ-(7, k) arising from embedding
We determine all hyperplanes of the dual polar space DQ−(7, K) which arise from embedding. This extends one of the results of [5] to the infinite case.
متن کاملValuations on Convex Sets of Oriented Hyperplanes
We discuss valuations on convex sets of oriented hyperplanes in R. For d = 2, we prove an analogue of Hadwiger’s characterization theorem for continuous, rigid motion invariant valuations.
متن کاملOn the Connectedness of Rational Arithmetic Discrete Hyperplanes
While connected arithmetic discrete lines are entirely characterized by their arithmetic thickness, only partial results exist for arithmetic discrete hyperplanes in any dimension. In the present paper, we focus on 0-connected rational arithmetic discrete planes in Z. Thanks to an arithmetic reduction on a given integer vector n, we provide an algorithm which computes the thickness of the thinn...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- CVGIP: Graphical Model and Image Processing
دوره 59 شماره
صفحات -
تاریخ انتشار 1997