Optical frequency imaging
Frequency imaging of different areas or object in an image is created by a visible light, infrared or other cameras taking multiple sequential images. The images are recorded and stacked. Pixels that vary in the images yield time varying data on a pixel by pixel basis. The time varying data is processed to extract pixel by pixel signal spectrum or another similar signal metric. Frequency at each pixel is displayed and distinguished, such as by recoloring the pixels based on spectral power rather than intensity contrast.
1. Apparatus comprising:
a camera configured for taking multiple sequential images of a scene,
a digital recorder connected to the camera and adapted for recording the multiple sequential images of the scene and adapted for stacking the recorded multiple sequential images in a time sequence,
a computer connected to the digital recorder and adapted for obtaining intensity versus time for each pixel on the recorded multiple sequential images of the scene, the computer being configured for transforming a time series of data from pixel points to frequency information at the same pixel points, the computer being adapted to indicate where energy lies in the pixels, the computer being adapted to display an energy spectrum according to frequency content of each pixel and to distinguish features of each pixel according to the frequency content of pixels or frequency narration in the same pixels,
wherein the computer is configured to:
convert pixel image characteristics of each pixel in the multiple sequential images to a specific color, and
reconstruct each of the multiple sequential images to a colored image displaying a plurality of colors, each of the colored images thereby displaying frequency behavior of each of the pixels.
2. The apparatus of claim 1 , wherein the camera is a visible light camera.
3. The apparatus of claim 1 , wherein the camera is an infrared camera.
4. The apparatus of claim 1 , wherein the camera is a video camera.
5. The apparatus of claim 1 , wherein the camera is capable of operating at speeds in excess of 1000 frames per second.
6. The apparatus of claim 1 , wherein the scene to which the camera is directed is operating machinery.
7. The apparatus of claim 1 , wherein the scene to which the camera is directed to make the multiple sequential images is infrastructure.
8. The apparatus of claim 1 , wherein the scene to which the camera is directed to make the multiple sequential images is a jet engine.
9. The apparatus of claim 1 , wherein the scene to which the camera is directed to make the multiple sequential images is a jet engine exhaust plume.
10. The apparatus of claim 1 , wherein the multiple sequential images are taken of one or more distant objects.