DSO pinhole
时间: 2024-02-12 07:27:32 浏览: 29
DSO是Direct Sparse Odometry的缩写,是一种用于相机姿态估计和三维重建的算法。在DSO中,使用了针孔相机模型来描述相机成像。针孔相机模型是基于初中物理的小孔成像原理,即光线通过针孔后在背面投影成像。这种模型适用于大多数商业相机,使用透视投影来建模。在DSO中,相机的内参矩阵K包括成像缩放参数fx、fy和成像偏移参数cx、cy,这些参数需要在相机标定过程中进行确定。[2]
然而,对于一些具有高畸变的成像设备,如广角相机,传统的针孔相机模型无法准确描述。广角相机具有较大的视野,可以覆盖360度或近似整个球体。这种相机需要使用全向模型进行投影建模,考虑透镜反射或鱼眼镜头的折射。全向模型可以更好地描述广角相机的成像特性。[3]
综上所述,DSO算法使用针孔相机模型来描述相机成像,适用于大多数商业相机。对于广角相机等具有高畸变的设备,需要使用全向模型进行投影建模。
相关问题
ubuntu DSO
Ubuntu DSO(Dynamic Shared Object)是指在Ubuntu操作系统中使用的动态共享对象。动态共享对象是一种可以在运行时被加载的可执行文件,它包含函数和数据,可以被多个程序共享使用。在Ubuntu中,DSO被用于实现共享库(Shared Library),这些共享库可以被不同的程序使用,从而提供代码重用和模块化开发的好处。DSO还可以通过动态链接在运行时加载,这样可以在不重新编译程序的情况下更新和替换共享库。
dso statistics
DSO (Days Sales Outstanding) is a financial metric that measures the average number of days it takes for a company to collect payment after a sale has been made. It is calculated by dividing the accounts receivable balance by the total credit sales for a period and then multiplying by the number of days in that period.
DSO is an important metric for businesses as it indicates how efficiently they are collecting payments from customers. A high DSO can indicate that a company is struggling to collect payments and may be experiencing cash flow problems, while a low DSO indicates that a company is collecting payments quickly and has good cash flow.
To improve DSO, companies can implement strategies such as offering incentives for early payment, improving their credit policies and procedures, and using technology to streamline the invoicing and payment process.
相关推荐
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)