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1. (WO2014199860) METHOD FOR GENERATING TEXTURE-IMAGE DATA

Pub. No.:    WO/2014/199860    International Application No.:    PCT/JP2014/064662
Publication Date: Fri Dec 19 00:59:59 CET 2014 International Filing Date: Wed Jun 04 01:59:59 CEST 2014
IPC: G06T 15/04
G06T 17/05
Applicants: GEO TECHNICAL LABORATORY CO., LTD.
株式会社ジオ技術研究所
Inventors: KISHIKAWA Kiyonari
岸川 喜代成
TOU Kouhei
藤 耕平
SATOH Yasufumi
佐藤 恭史
IKEGAMI Tatsuya
池上 達也
Title: METHOD FOR GENERATING TEXTURE-IMAGE DATA
Abstract:
[Problem] To generate texture-image data to be applied to polygons in a 3D model. [Solution] A plurality of pieces of image data taken of a feature for which a texture is to be generated are read in, and by analyzing shooting conditions from when the images were taken and color information within the image data, corresponding feature points across the images are obtained. To generate a texture, for each target pixel (PP1 through PP3) constituting the texture, the pixels (CP11, etc.) corresponding thereto in the respective images are determined and the color of the target pixel is selected using the average of the color information for the corresponding pixels. Since the feature-point correspondence relationship across the images is known, through the use of a relative positional relationship based on said feature points, corresponding pixels other than the feature points can also be identified. Since, in this way, texture colors are selected on a per-pixel basis using a plurality of pieces of image data, a texture image can be generated with some images used to fill in gaps in other images, such as sections occluded by other polygons.