Verfahren und Vorrichtung zur Erzeugung einer Disparitätskarte auf Basis von Bildern, die von einer Stereokamera Aufgenommen Werden

Details

Veröffentlichungs-Nr.

EP3001382

Aktenzeichen

EP15186176

Anmeldetag

22. September 2015

Veröffentlichung

13. September 2017

Erteilung

13. September 2017

Rechtsraum

EP

IPC

G06T5/00G06T5/40G06T7/00H04N13/00

Abstract

A method and an apparatus for generating a disparity map based on image frames photographed by a stereo camera are disclosed. The method includes generating an initial standard grayscale histogram and an initial reference grayscale histogram based on a first image frame; generating a target standard grayscale histogram and a target reference grayscale histogram based on historical information of a second image frame; calculating a standard mapping function from the initial standard grayscale histogram to the target standard grayscale histogram and a reference mapping function from the initial reference grayscale histogram to the target reference grayscale histogram; performing the mapping functions to obtain an enhanced standard image and an enhanced reference image of the first image frame; and generating a first disparity map corresponding to the first image frame based on the enhanced standard image and the enhanced reference image.

Anmelder

Firma

Ricoh Company, Ltd.

Land

🇯🇵 Japan

Fachgebiete