Claims
- 1. A method to restore an image degraded by relative mechanical vibration motion between the object and the imaging device, such method comprising the steps of:
- determining the relative mechanical vibration motion as a function of time x(t);
- calculating the Line Spread Function (LSF) by generating the displacement histogram f.sub.x (x);
- calculating the Optical Transfer Function (OTF) according to the rule ##EQU4## and applying a restoration filter M according to the rule ##EQU5## where H is the said OTF, C is the discrete Laplacian operator and .gamma. is a parameter which minimizes the variance of noise present in the degraded image.
- 2. The method of claim 1 wherein the relative mechanical vibration motion is determined by a motion sensor.
- 3. The method of claim 1 wherein the imaging device is a video camera.
- 4. The method of claim 1 wherein the imaging device is a still camera.
- 5. The method of claim 1 where the relative mechanical vibration motion is two-dimensional and in which the calculations are performed on both dimensions.
- 6. Apparatus to restore an image degraded by relative mechanical vibration motion between the object and the imaging device, such apparatus comprising:
- at least one motion sensor to determine the relative mechanical vibration motion as a function of time x(t);
- means to calculate the Line Spread Function (LSF) by generating the displacement histogram f.sub.x (x);
- means to calculate the Optical Transfer Function (OTF) according to the rule ##EQU6## and to calculate a restoration filter M according to the rule ##EQU7## where H is the OTF, C is the discrete Laplacian operator and .gamma. is a parameter which minimizes the variance of noise present in the degraded image.
- 7. The apparatus of claim 6 wherein the imaging device is a video camera.
- 8. The apparatus of claim 6 wherein the imaging device is a still camera.
Parent Case Info
This is a continuation of application(s) Ser. No. 08/388,608 filed on Feb. 14, 1995, now abandoned.
US Referenced Citations (6)
Continuations (1)
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Number |
Date |
Country |
Parent |
388608 |
Feb 1995 |
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