Dybdeopløsning

Dybdeopløsning, sometimes translated as depth resolution, refers to the ability of a system to distinguish between objects at different distances from the sensor. In imaging and sensing technologies, it dictates how finely the system can discern variations in depth. A high depth resolution means the system can detect very small differences in distance between two points, allowing for precise mapping of three-dimensional space. Conversely, low depth resolution would group objects that are relatively close in distance into the same depth layer.

The concept of depth resolution is crucial in various fields. In medical imaging, for instance, high depth resolution in ultrasound or MRI allows for detailed visualization of internal structures and pathologies. In autonomous driving, it is vital for accurately detecting obstacles and understanding the surrounding environment. Photogrammetry and 3D scanning rely heavily on depth resolution to create accurate digital representations of physical objects and scenes.

Factors influencing depth resolution include the wavelength of the emitted or detected signal (e.g., light, sound), the sensor's characteristics, signal processing algorithms, and environmental conditions. For example, in optical systems like lidar, the pulse width and detector sensitivity play significant roles. In sonar, the frequency and duration of the sound pulses are important. Improving depth resolution often involves trade-offs with other system parameters, such as speed, cost, or power consumption.