Study on Digital Design Methods for Leather Texture on Plastic Parts

塑料件皮革纹理数字化设计方法研究

• 批准号: 22246018
• 负责人: SUZUKI Hiromasa
• 金额: $ 30.87万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22246018/
• 关键词: シボ; 産業用Ｘ線ＣＴ; 3次元スキャニング; テクスチャシンセシス; 産業用X線CT; 表面計測; X線CT; 加飾; テクスチャ合成

Leather texturing is one of the surface decoration technologies for plastic parts. This manufacturing process has been dependent on manual work using chemical etching for graving textures on die surfaces. It hinders generation of aesthetic decoration. Recently NC milling machines are applied using digital 3D data of the leather textures. In this study methods for generating texture data by scanning real leather samples with an X-rays CT scanning system (XCT) was proposed. We developed a method to improve scanning accuracy of XCT and also a method to extend the scanned texture data of a limited area to arbitrary larger areas needed to cover a part surface to be decorated. For the former issue, we found artifact is critical factor for the accuracy and was reduced by our new correction method. For the latter we extended a texture synthesis method to be optimal for leather textures. Leather texture data was applied to a real manufacturing to produce cases of mobile phones made of plastic.

皮革纹理化是塑料件表面装饰技术之一。这种制造工艺一直依赖于使用化学蚀刻在模具表面上雕刻纹理的手工工作。它阻碍了审美装饰的产生。最近，NC铣床被应用于皮革纹理的数字3D数据。提出了一种利用X射线CT扫描系统（XCT）对真实的皮革样品进行扫描，生成纹理数据的方法。我们开发了一种方法来提高扫描精度的XCT，也是一种方法来扩展扫描的纹理数据的一个有限的区域到任意较大的区域所需的覆盖一个零件表面进行装饰。对于前一个问题，我们发现伪影是准确性的关键因素，并通过我们的新校正方法减少。对于后者，我们扩展了一个纹理合成方法是最佳的皮革纹理。将皮革纹理数据应用于真实的制造，以生产塑料制成的移动的手机外壳。

项目成果

The Sinogram Polygonizer for Reconstructing 3D Shapes

用于重建 3D 形状的 Sinogram Polygonizer

• DOI: 10.1109/tvcg.2013.87
• 发表时间: 2013
• 期刊: IEEE TVCG, Transactions on Visualization and Computer Graphics
• 作者: Daiki Yamanaka;Yutaka Ohtake;Hiromasa Suzuki
• 通讯作者: Hiromasa Suzuki

Edge detection based multi-material interface extraction on industrial CT volumes

• DOI: 10.1007/s11432-013-4987-2
• 发表时间: 2013-09-01
• 期刊: SCIENCE CHINA-INFORMATION SCIENCES
• 影响因子: 8.8
• 作者: Ohtake, Yutaka;Suzuki, Hiromasa
• 通讯作者: Suzuki, Hiromasa

Polygonization of volumetric skeletons with junctions

具有连接点的体积骨架的多边形化

• DOI: 10.1016/j.cad.2011.06.003
• 发表时间: 2011
• 期刊: J.Computer-Aided Design
• 作者: Takashi Michikawa;Hiromasa Suzuki
• 通讯作者: Hiromasa Suzuki

Creeping Contours : A Multilabel Image Segmentation Method for Extracting Boundary Surfaces of Parts in Volumetric Images

蠕动轮廓：一种用于提取体积图像中零件边界表面的多标签图像分割方法

• DOI: 10.1115/1.3569830
• 发表时间: 2011
• 期刊: ASME Journal of Computing and Information Science in Engineering
• 作者: Haitham Shammaa;Hiromasa Suzuki;Yutaka Ohtake
• 通讯作者: Yutaka Ohtake

Computing rectilinear grids by iterative coarsening of grid lines

通过网格线迭代粗化计算直线网格

• 发表时间: 2013
• 作者: Takashi Michikawa;Isato Iwata;Hiromasa Suzuki;Eiji Ohta;Masayoshi Hashima and Yuichi Sato
• 通讯作者: Masayoshi Hashima and Yuichi Sato