Question

which of the following sensors is used for image recognition?​

Answer 1

The computer vision system uses three sensor types to analyse images and predict the presence of people or items of interest in an image'.

Explanation:

• A sensor is a device that detects a physical quantity, such as the presence or absence of a person, movement, temperature, or light. Sensors are used to make machines “smarter”, such as by detecting a person’s presence and automatically turning on the lights or switching to a different climate control setting.
• The system can detect, identify, and quantify objects of interest (e.g., people, animals, vehicles, or plant in an image, and can be trained to do so.
• The system uses three types of sensors to analyse images: a) digital cameras, b) IR cameras, and c) stereo image pairs.
• The system uses a combination of an optical-flow based tracker, a stereo camera, and a single-frame camera for object detection.

Answer 2

the charge-coupled device (CCD) and the active-pixel sensor (CMOS sensor) are the sensors used for image recognition.

• their main function is to convert the incoming light to electrical signal.
• the incoming light or photon when converted to electric form is used to view, analyze or store.
• it is a solid state device and is considered as an important part in  machine vision camera.