Large plane displays are often achieved by combining tiled imaging elements, which give the appearance of a single, seamless display. However, this is difficult to realize in practical use, since differences in color ...Large plane displays are often achieved by combining tiled imaging elements, which give the appearance of a single, seamless display. However, this is difficult to realize in practical use, since differences in color will make the tiles dis-tinct even if the geometric calibration is perfect. The paper presents an approach of color calibration using cubic B- spline. According to the theory of cubic B-spline, we construct the color transfer function of each projector. This ap-proach reduces the color and photometric non-uniformities to achieve seamless tiled multi-projector display well. Finally, we propose the difference between blending region and overlapping region which can help to achieve a better effect of alpha blending.展开更多
聚酰胺纤维／氨纶弹性纤维（PA／EL）混纺产品染色后湿牢度通常不及纯聚酰胺纤维，尤其是聚酰胺超细纤维，湿牢度更差。在染色后处理工艺中，使用司马（ZSM）公司的后处理助剂ZETESAL NR Gold和ZETESAL NR Gold（液体），可满足高牢度...聚酰胺纤维／氨纶弹性纤维（PA／EL）混纺产品染色后湿牢度通常不及纯聚酰胺纤维，尤其是聚酰胺超细纤维，湿牢度更差。在染色后处理工艺中，使用司马（ZSM）公司的后处理助剂ZETESAL NR Gold和ZETESAL NR Gold（液体），可满足高牢度、低黄变的要求。此外，其优异的耐酸稳定性可赋予工艺更高的可靠性。展开更多
文摘Large plane displays are often achieved by combining tiled imaging elements, which give the appearance of a single, seamless display. However, this is difficult to realize in practical use, since differences in color will make the tiles dis-tinct even if the geometric calibration is perfect. The paper presents an approach of color calibration using cubic B- spline. According to the theory of cubic B-spline, we construct the color transfer function of each projector. This ap-proach reduces the color and photometric non-uniformities to achieve seamless tiled multi-projector display well. Finally, we propose the difference between blending region and overlapping region which can help to achieve a better effect of alpha blending.
文摘聚酰胺纤维／氨纶弹性纤维（PA／EL）混纺产品染色后湿牢度通常不及纯聚酰胺纤维，尤其是聚酰胺超细纤维，湿牢度更差。在染色后处理工艺中，使用司马（ZSM）公司的后处理助剂ZETESAL NR Gold和ZETESAL NR Gold（液体），可满足高牢度、低黄变的要求。此外，其优异的耐酸稳定性可赋予工艺更高的可靠性。
