Looking Through Paintings by Combining Hyper-Spectral Imaging and Pulse-Compression Thermography

Looking Through Paintings

Hyper-Spectral Image Compression

Hyper-spectral images consist of huge amount of data. This paper presents a compression technique developed specifically for these images. This technique explores unique characteristics of the hyper-spectral images and incorporates them into the compression. It also exploits the wavelet transformation and bit plane entropy coding used in general image compression. In this technique, predicting ...

Compression of Multispectral Images - Combining Spatial and Spectral Compression

One major disadvantage of multispectral imaging is the amount of data that needs to be stored for each multispectral image. In the past, several authors have proposed compression schemes to overcome this disadvantage. Most of these papers dealt with compression either in the spectral or in the spatial realm only, although some authors proposed to divide the data into luminance and color compone...

Double Pulse Infrared Thermography

0. Abstract In this paper we propose a simple enhancing protocol for pulsed infrared thermography. The method is based on stimulating the specimen with two heating pulses separated by a short time interval delta. This approach was tested on several specimens of low and high thermal diffusivity and showed to provide higher thermal contrasts when an optimum interval delta is chosen. The observed ...

Ultrasonic imaging system by using optical pulse compression.

The conventional ultrasonic imaging techniques including the holographic one give a high resolution in angle, but a relatively poor resolution in range, because the resolution in range is obtained only by use of selective focus or parallax useful only with a small focal ratio. This paper presents the principle and some experimental results of new ultrasonic imaging techniques that use a linear ...