camera ITS
时间: 2023-10-19 19:09:13 浏览: 44
camera ITS 是一个用于测试Android摄像头生成图像的框架。它的主要目标是配置相机并捕获照片,然后检查这些照片是否包含预期的图像数据。camera ITS 的框架最初位于KitKat版本的Android源代码中的pdk/apps/区域版本,但后来转移到了CTS验证器测试工具中(在源代码的CTS/区域下)。
在camera ITS中,有一个测试场景叫作场景5,它用于测试镜头着色和颜色均匀性。在这个场景中,相机被放置在一个三脚架上,指向一个恒定的明亮照明源,而摄像机前放置了一个扩散器。
相关问题
cameraservice api
The CameraService API is an Android API that provides access to the device's camera hardware. It allows developers to control the camera hardware and capture images and video.
The CameraService API consists of several classes and interfaces, including:
1. CameraManager: This class provides access to the device's camera hardware.
2. CameraDevice: This interface represents a physical camera device.
3. CameraCharacteristics: This class provides information about the camera hardware, such as its supported resolutions and available features.
4. CameraCaptureSession: This interface represents a session for capturing images or video.
5. CameraCaptureRequest: This class represents a request to capture an image or video.
Developers can use the CameraService API to do things like:
1. Open a camera device and preview its output.
2. Capture images or video.
3. Apply image processing effects to captured images.
4. Control camera settings like exposure, focus, and white balance.
5. Stream camera output to other devices or services.
camera_info_t变量原型
camera_info_t 是 ROS (Robot Operating System) 中一个用于存储相机参数信息的数据结构,其原型定义如下:
```cpp
struct CameraInfo_
{
// CameraInfo_<T> should be a POD, but it's not because
// there is a bug in gcc3.3 that prevents it from correctly
// compiling its own STL headers with PODs.
//
// The bug is fixed in gcc 3.4 and later versions.
std::vector<double> D; /**< Distorion coeffs [k1, k2, t1, t2, k3, k4, k5, k6] */
double K[9]; /**< Intrinsic camera matrix for the raw (distorted) images. */
double R[9]; /**< Rectification matrix (stereo cameras only) */
double P[12]; /**< Projection/camera matrix */
int width, height; /**< Image dimensions */
std::string distortion_model; /**< Distortion model name */
std::vector<double> P_; /**< The full 12-element projection matrix */
};
typedef CameraInfo_<float> CameraInfo;
```
其中,camera_info_t 是 CameraInfo_\<float> 的别名,类型为 CameraInfo。该结构体包含了相机的内部参数(如相机内参矩阵、畸变系数等)和外部参数(如投影矩阵、图像尺寸等),用于进行相机标定、相机姿态估计等任务。