High Quality Color Restoration using Spectral Power Distribuion for 3 D Textured Model

In connection with e fforts to preserve objects of cultural heritage, we are attempting to recreate the real color of a wall painting in the ancient Ozuka tumulus. The di fficulties are that there is no sunlight in the tumulus, and we are not allowed to use torchlight because of preservation considerations. So to observe a wall painting under these conditions, we have to observe a computation image. We have found that for high quality color restoration and color preservation, we can use spectral power distribution. We have discovered that a color signal spectral is suitable for color preservation because it has more color data than RGB three-channel data, and it does not depend on a measuring implement. When we use spectral power distribution, we can create images that have more precise colors that those created using RGB data. But the spectral power distribution data that we can acquire has low resolution. So by matching a high-resolution RGB image and a low-resolution spectral power distribution image, we obtain a restored image that has high-resolution and high-quality color.