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anelatek2020 September 8, 2023 No Comments

CCD vs CMOS How they differ in geospatial applications?

CCD vs CMOS How they differ in geospatial applications?

CCD (Charge-Coupled Device) and CMOS (Complementary Metal-Oxide-Semiconductor) are two primary types of image sensors used in digital cameras.


1. Signal processing: In CCD sensors, the charge is transferred from one pixel to another and then to a common output structure.

2. Image quality: CCD sensors are known to have an edge over CMOS sensors in terms of image quality, because they offer more detail, contrast, and color fidelity. Especially in low light conditions.

3. Power consumption: CCDs consume more power than CMOS sensors.

4. Cost: Producing CCD sensors is more expensive due to the complexity of their manufacturing process.

5. Speed: CCDs are slower in readout speed compared to CMOS sensors.


1. Signal processing: Each pixel in a CMOS sensor has its own charge-to-voltage conversion.

2. Image quality: CMOS sensors were associated with more noise and lower image quality than CCDs. However, technological advancements have improved CMOS image quality significantly, making today the difference almost negligible in good lighting conditions.

3. Power consumption: CMOS sensors consume less power.

4. Cost: CMOS manufacturing is integrated into the standard, dominant semiconductor manufacturing process, making it cheaper to produce.

5. Speed: CMOS sensors offer faster readout speeds. They’re often used in applications where high frame rates are required.

With low altitudes aerial / drone imagery or high speed mobile mapping CMOS sensors allow to capture at higher frame rates that secures good overlap and operational efficiency.

Due to the ability to integrate on-chip electronics, CMOS sensors can be designed with additional functionalities, such as on-chip autofocus or image stabilization.

Better CCD image quality is still noticeable in higher altitudes and low light shadow areas. Offering better 3D reconstruction capabilities.

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Video credit: Dallmeier electronic

Disclaimer – This post has only been shared for an educational and knowledge-sharing purpose related to Technologies. Information was obtained from the source above source. All rights and credits are reserved for the respective owner(s).

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Source: LinkedIn

Credits: Mr. Arkadiusz Szadkowski’s Post

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