If you have recently been out purchasing a new smartphone or even a photography drone, you may have come across terms such as Image Stabilization. This is the process by which modern camera sensors compensate for camera shake, so that picture taken by the camera is smooth and clear.
Image stabilization is important because even small movements like the shaking of your hand when holding a smartphone can result in a blurry picture. Image stabilization remedies this by using a complicated suite of sensors and processors.
We have already talked about Optical Image stabilization in a previous blog post, which you can read here. In today’s blog post, we will be looking at Electronic Image Stabilization. We look at how it works and whether it is better than OIS.
How EIS works?
EIS takes help from complicated sensors to ‘sense’ the movement of the camera. These sensors send information to the camera’s processor about the camera speed, angular velocity, and position. The processor then adjusts the position of the image to compensate for the motion.
Typically, EIS uses sensors such as accelerators and a gyroscope to detect the movement of the camera. Think of these sensors as the eyes and ears of the processor, telling the processor in real-time how the camera is being moved. Once the processor has received information about the movement of the camera, it adjusts the image to counter the movement.
How EIS is different from OIS?
While both EIS and OIS are types of image stabilization. EIS works on the image after its captured, altering it digitally afterward. OIS on the other hand uses electromechanical means to move the camera sensors before and during image capture.
In essence that makes OIS better because it has more data to work. But that comes at the cost of OIS-enabled sensors being more expensive to implement.
This is why OIS is commonly found in high-end cameras, drones, and smartphones. While EIS is usually found in the budget to low-end smartphones and cameras. Some devices use both OIS and EIS to get the best of both worlds and provide the best possible stabilization.
Leave a Reply.
With Urban Jungle elements at your fingertips, the possibilities are endless.