IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

Title:

IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

Document Type and Number:

WIPO Patent Application WO/2017/163468

Kind Code:

A1

Abstract:

Provided is an image processing device which determines a second pixel range of a pre-correction image which is necessary for generating a first pixel range which is formed from a predetermined range of pixels of a post-correction image, said image processing device comprising a cache unit which determines the second pixel range, reads out the second pixel range from a memory prior to executing a correction, and retains said second pixel range. A correspondence is predetermined which indicates positions of the pre-correction image which are equivalent to positions of each of the pixels of the post-correction image. The cache unit: on the basis of the correspondence, identifies the positions of the pre-correction image which correspond to one pixel of each of four corners of a rectangular third pixel range which includes the first pixel range; on the basis of the identified positions, identifies a pixel range of the pre-correction image which is necessary for generating pixel values of each of the pixels of the four corners of the third pixel range; and determines that the second pixel range is a pixel range which includes a convex set which includes the entirety of the identified pixel range.

Inventors:

UCHIDA YUSUKE (JP)
YAMADA TETSUYA (JP)
MATSUO SHIGERU (JP)
SASAMOTO MANABU (JP)

Application Number:

PCT/JP2016/080184

Publication Date:

September 28, 2017

Filing Date:

October 12, 2016

Export Citation:

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Assignee:

HITACHI AUTOMOTIVE SYSTEMS LTD (JP)

International Classes:

G06T3/00; G06T1/60; G06T5/00; H04N5/232

Foreign References:

JP2005044098A	2005-02-17
JP2005045513A	2005-02-17
JP2009043060A	2009-02-26
JP2011113234A	2011-06-09
JP2011002940A	2011-01-06
JP2001101396A	2001-04-13

Other References: