Photogrammetry Drones vs. LIDAR Drones: Which One is Better for Aerial Mapping?

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 In recent years, drones have revolutionized the way aerial mapping is conducted. They are being increasingly used for photogrammetry and LIDAR (Light Detection and Ranging) mapping, two techniques used to create detailed 3D maps of the Earth's surface. While both techniques have their own advantages, there is often a debate over which one is better. In this blog, we will compare photogrammetry drones and LIDAR drones, and discuss which one is better for aerial mapping.

Photogrammetry Drones:

Photogrammetry is the technique of measuring distances and dimensions from photographs. Photogrammetry drones use a camera to capture high-resolution images of the Earth's surface from various angles. These images are then processed using specialized software to create 3D models of the terrain.

One of the biggest advantages of photogrammetry drones is their cost-effectiveness. Compared to LIDAR drones, photogrammetry drones are much cheaper, making them a popular choice for smaller mapping projects. They are also easier to operate and require less specialized knowledge, making them more accessible to a wider range of users.

However, photogrammetry drones have a few limitations. They are dependent on good lighting conditions, and images taken during cloudy or overcast days can produce lower-quality results. Additionally, photogrammetry is not as accurate as LIDAR, and can be affected by distortion caused by factors such as camera angle, lens distortion, and image stitching.

LIDAR Drones:

LIDAR drones use laser technology to measure distances and dimensions of the Earth's surface. LIDAR works by sending out laser pulses that bounce off objects on the ground and return to the drone. The time it takes for the laser to return is used to calculate the distance between the drone and the object, creating a detailed 3D map of the terrain.

LIDAR drones have several advantages over photogrammetry drones. They are not affected by lighting conditions, as they use their own light source to create the map. They are also more accurate than photogrammetry drones, with the ability to measure vertical and horizontal distances to within a few centimeters. LIDAR is particularly useful for mapping forested areas, as it can penetrate through vegetation to create accurate maps of the ground beneath.

However, LIDAR drones also have some limitations. They are more expensive than photogrammetry drones and require specialized knowledge to operate. The data they collect also requires more processing power and time to produce accurate 3D maps.

Conclusion:

In conclusion, both photogrammetry drones and LIDAR drones have their own advantages and limitations. The choice between the two techniques ultimately depends on the specific requirements of the project, including the level of accuracy needed, the size of the area to be mapped, and the available budget. For smaller mapping projects with a limited budget, photogrammetry drones are a good choice. However, for larger projects that require higher accuracy and detailed information, LIDAR drones are the better option.

Global Market Size

The global LiDAR drone market size was valued at $0.15 billion in 2021, and is anticipated to garner $1 billion by 2031, growing at a CAGR of 22.1% from 2022 to 2031.

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Top 10 Companies in LiDAR Drones and Photogrammetry Drones 

Here are the top 10 companies in LiDAR drones and Photogrammetry drones industry country-wise with details:

LiDAR Drones:

1. Velodyne Lidar (USA) - Velodyne Lidar is one of the leading companies in the LiDAR drone industry. They provide advanced LiDAR sensors for a variety of applications such as aerial mapping, surveying, and inspection.
2. Phoenix LiDAR (USA) - Phoenix LiDAR offers high-performance LiDAR systems for unmanned aerial vehicles (UAVs) that can capture highly accurate 3D data for a range of applications, including surveying, construction, and inspection.
3. Benewake (China) - Benewake is a Chinese company that specializes in developing solid-state LiDAR technology for drones. Their products offer high resolution, long range, and a compact size, making them ideal for use in drones.
4. Livox (China) - Livox is a Chinese company that produces high-performance LiDAR sensors for a range of applications. Their products are compact and lightweight, making them ideal for use in drones.
5. LeddarTech (Canada) - LeddarTech is a Canadian company that specializes in developing advanced LiDAR technology for various applications, including drones. Their products offer high accuracy and precision, making them ideal for use in industries such as mining and construction.

Photogrammetry Drones:

1. DJI (China) - DJI is the world's leading drone manufacturer, and their products are widely used in the photogrammetry industry. Their drones are equipped with advanced cameras and sensors that can capture high-resolution images and data for a range of applications.
2. Parrot (France) - Parrot is a French company that produces a range of drones for photogrammetry applications. Their products offer high-quality images and data, making them ideal for use in industries such as agriculture and construction.
3. senseFly (Switzerland) - senseFly is a Swiss company that produces fixed-wing drones that are ideal for photogrammetry applications. Their products are equipped with high-resolution cameras and can capture detailed images and data over large areas.
4. Microdrones (Germany) - Microdrones is a German company that produces a range of drones for photogrammetry applications. Their products are equipped with high-resolution cameras and sensors and can capture detailed images and data for a range of industries.
5. Autel Robotics (USA) - Autel Robotics is a US-based company that produces drones for photogrammetry applications. Their products are equipped with advanced cameras and sensors and can capture high-resolution images and data for a range of industries.