In recent years

since data acquisition equipments have been improved

a growing number of high-precision large images appear in the medical imaging

remote sensing

meteorology

archeology and other fields. These images not only provide users with detailed information

but also bring out tremendous challenge to display them interactively. We designed a scalable parallel pipeline

according to our algorithm based on proposed method of data management. Then

we design the algorithm to zoom the large image based on CUDA(compute unified device architecture) framework interactively. Our algorithm does not require any pre-processing operation

can obtain excellent real-time performance and stability

and improve the efficiency of the browser greatly.