fish-eye lens

Production reasons of "fish eyes" of resin by suspension polymerization process and preventive measures;

悬浮聚合PVC树脂中“鱼眼”的产生及预防

Precautions against "fish eye" occurring in the production of PVC resin;

聚氯乙烯树脂生产中“鱼眼”的防范措施

Measure for diminishing "fish eye" number in fiber-grade PP;

减少纤维级PP中“鱼眼”的对策及措施

High quality PVC resins with polymerization degree of 800 and less "fish eyes" were produced through optimizing the composition,such as reducing the polymerization temperature,adjusting the ratio of composite initiators and the using amount of chain transfer agents,adding anti-"fish eye" agents,and so on.

通过降低聚合温度,调整复合引发剂配比、链转移剂用量,加入抗"鱼眼"剂等方法进一步优化了工艺配方,制备出"鱼眼"数少、树脂质量好的聚合度为800的PVC树脂。

Cause Analysis and Countermeasure of Fish-eye on LDPE Product;

LDPE产品鱼眼产生的原因分析及对策

An improved parabola model and a group of restricted projecting conditions of fish-eye lens are proposed.

该文对鱼眼相机拍摄的照片建立了一种可校正的鱼眼镜头抛物面模型和一组鱼眼透视约束条件 对于一个场景 ,只需前后拍摄两幅鱼眼照片并给出其结构草图 ,就可以利用局部高斯加权的算法提取整个场景框架 ,从而恢复场景的三维模型 以此模型为基础 ,不仅可以实现全景漫游 ,而且可以实现在场景的任意位置向任意方向的具有真实感的三维虚拟浏