Why can the steering wheel of a car be left or right when taking pictures? What about this lens? Why are the steering wheels of the same two people in different positions?

The first chapter is because the front camera is used, and the second chapter uses the rear camera.

Camera (or network camera), also known as computer camera, is a video input device, which is widely used in video conferencing, telemedicine, real-time monitoring and other fields. Consists of a lens, an image sensor and a power supply; It can be divided into digital cameras and analog cameras.

Ordinary people can also have video and audio conversations and communicate with each other on the Internet through the camera. In addition, people can also use it for various popular digital images and audio-visual processing.

Resolution is a parameter used to measure the amount of data in bitmap images, usually expressed in dpi (dots per inch). Simply put, the resolution of the camera refers to the ability of the camera to analyze images, that is, the number of pixels of the camera's image sensor. The highest resolution refers to the size of the camera's ability to distinguish images at the highest level, that is, the maximum number of pixels of the camera.

At present, the resolution of 300,000 pixel CMOS on the market is 640×480, and that of 500,000 pixel CMOS is 800×600. The two digits of the resolution represent the point units of the length and width of the picture. The aspect ratio of digital pictures is usually 4: 3.