Sub-pixel Shift Measurement Based on Correlation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F06%3A03120516" target="_blank" >RIV/68407700:21230/06:03120516 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Sub-pixel Shift Measurement Based on Correlation

Original language description

If is required higher (sub-pixel) resolution, is necessary to use an interpolation. If input sequences (pictures) are interpolated (their sampling rate is increased) and then will be computed the cross-correlation function, is possible to find out the shift level with higher accuracy. This method is improper to the implementation into a digital signal processor (DSP) or field programmable gate array (FPGA), because it requires high performance and expensive DSP or FPGA. Therefore is preferable to acquire the information about sub-pixel shift from already computed cross-correlation function. This information can be obtained from the peak of the cross-correlation function and its shape, which is subject of this paper. Subject of this paper is how to obtain the level of sub-pixel shift from the shape of cross-correlation function.

Czech name

Není k dispozici

Czech description

EI26

Type

A - Audiovisual production

CEP classification

JB - Sensors, detecting elements, measurement and regulation

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

ISBN

—

Place of publication

Praha

Publisher/client name

—

Version

—

Carrier ID

neuvedeno