Home/technology

Qukut Latest Questions

Harpreet
  • 0
HarpreetBeginner
Asked: 4 weeks agoIn: , ,
  • 0

What is LiDAR?

lidartechnology
  1. Pankaj Gupta
    Pankaj Gupta Explorer

    LiDAR, which stands for Light Detection and Ranging, is a remote sensing technology that uses laser light to measure distances and create highly detailed, three-dimensional maps of surfaces. Here’s a breakdown of how it works and its applications: How LiDAR Works Emission of Laser Pulses: A LiDAR syRead more

    LiDAR, which stands for Light Detection and Ranging, is a remote sensing technology that uses laser light to measure distances and create highly detailed, three-dimensional maps of surfaces. Here’s a breakdown of how it works and its applications:

    How LiDAR Works

    1. Emission of Laser Pulses: A LiDAR system emits thousands of laser pulses per second toward a target area.
    2. Measuring Distance: When these pulses hit an object (e.g., the ground, buildings, trees), they reflect back to the LiDAR sensor.
    3. Time of Flight: By measuring the time taken for each pulse to return, the system calculates the distance between the sensor and the object. This is known as the β€œtime of flight” method.
    4. Data Processing: Each distance measurement (together with GPS location and orientation) is used to create a “point cloud,” which represents the 3D structure of the surveyed area.

    Types of LiDAR

    1. Airborne LiDAR: Mounted on airplanes or drones, it maps large terrains, including forests, coastlines, and urban areas.
    2. Terrestrial LiDAR: Used on the ground, this type can be mounted on vehicles or tripods for detailed surveys of buildings, roads, and other infrastructure.

    Applications of LiDAR

    • Mapping and Topography: Widely used in creating detailed topographical maps for environmental studies, city planning, and civil engineering.
    • Forestry: Assesses forest canopy structure, tree height, and biomass, useful in forest management.
    • Autonomous Vehicles: Provides real-time, high-precision 3D mapping of surroundings for self-driving cars to detect obstacles and navigate safely.
    • Archaeology: Detects hidden ruins or ancient settlements beneath dense vegetation.
    • Coastal and Floodplain Mapping: Helps in analyzing coastal erosion, flood risks, and modeling water flow in flood-prone areas.

    LiDAR is valued for its precision, versatility, and ability to work effectively in various lighting conditions, even at night.

    See less
Pankaj Gupta
  • 3
Poll
Pankaj GuptaExplorer
Asked: 1 month agoIn: , ,
  • 3

Which of the following is a key component of a neural network?

components of neural networkneural networktechnology
  1. Pankaj Gupta
    Pankaj Gupta Explorer

    The key components of a neural network encompass various elements that contribute to its functionality. Here’s a breakdown of the options provided: Neurons and Synapses: Neurons are indeed the fundamental units of a neural network, analogous to biological neurons, and synapses represent the connectiRead more

    The key components of a neural network encompass various elements that contribute to its functionality. Here’s a breakdown of the options provided:

    Neurons and Synapses: Neurons are indeed the fundamental units of a neural network, analogous to biological neurons, and synapses represent the connections between them, usually weighted to signify their importance.

    Layers and Nodes: Neural networks are structured in layers, including input, hidden, and output layers. Each layer consists of nodes (or neurons), which process inputs and pass outputs to subsequent layers.

    Recurrent Units and Dropout: Recurrent units are specific to recurrent neural networks (RNNs), which are designed for sequential data. Dropout is a regularization technique used to prevent overfitting by randomly dropping units during training.

    Given that all these elements play significant roles in different types of neural networks, the correct answer is: All of the above.

    See less