Abstract
We developed a 3D measurement system using digital holography. Our system can reconstruct a 3D shape from a single fringe image by using frequency analysis. Proposed system enables the measurement of 3D shapes of living cells (e.g. red blood cells) which are moving in liquid samples. This paper describes the measurement results of living cells. An experimental result shows that our measurement system can measure the 3D shapes and the movement of living cells in nanometer order. Proposed 3D measurement system based on digital holography is low in price and high in measurement accuracy. This system is expected to become a standard research and inspection tool for medical uses, water quality inspections and many more.
