Creating world largest panoramic image

Holmenkollen 1000 Gigapixel 360° is a monumental and inspiring visual creation that captures an extensive panorama of beautiful Oslo, Norway. Captured from one of the most breathtaking panorama locations in Norway, it is characterized by its extraordinary size, resolution, and level of detail, pushing the boundaries of technology and optical resolution.

We are a small two-person crew, consisting of a father and son, operating on a budget. We have invested a significant amount of money and time into this project, and we invite you to partner with us to ensure its success. We are daring to take bold steps towards setting a world record and invite you to be a part of the fame and glory of this project. Participation in this world record attempt will bring you great satisfaction by contributing to a project that will be viewed by many for years to come. This could also make a great gift for yourself, your family, or your friends. Perhaps a gift for someone who already has it all, but not a world record? If we succeed, your name or the name of the recipient of this gift will shine among other world record holders.

The heart of upscaling images lies in an algorithm called sub-pixel alignment, which aligns several nearly identical images on top of each other and attempts to restore the resolution lost when using only one picture. This is similar to Pixel Shift algorithms used in several cameras today. However, the problem with pixel shift algorithms is that the camera sensor is moved by a fraction of a pixel. This requires the camera not to move at all between shots. This method is ineffective with long focal lenses in windy environments, where the image through the lens moves by tens of pixels in every direction, even if the sensor remains stationary. Moving the sensor, in such conditions, by fractions of pixels is meaningless.

Movement by tens of pixels in sub-pixel alignment poses no problem. Sub-pixel alignment is applied after rough alignment, rotation, and cropping of the images. Unpredictable movement in every direction is welcomed. Good results can even be achieved with an 800mm handheld lens. My tests have shown that about 20 images are sufficient to increase the resolution and enhance the image quality.

This method is not new and has been proven to work by many others over the last decades. Sub-pixel alignment is performed by self-made CUDA software, which aligns and scales up 20 images in about 1 minute.

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