System for creating microscopic digital montage images

1. An imaging apparatus, comprising:

a motorized stage;

a camera focused relative to the motorized stage; and a processor coupled to the camera,

wherein the processor contains instructions which, when executed by the processor, cause the processor to:

capture a low resolution image that is incident on the camera, wherein the low resolution image includes a plurality of pixels, the pixels having a characteristic;

establish the characteristic for each pixel;

determine which of the pixels contain a target image based on the characteristic of the pixels and establish a target area that includes those pixels;

transpose the position of the target area into a plurality of stage coordinates;

capture a high resolution image that is incident on the camera at each of the stage coordinates,

wherein the processor determines which pixels contain the target image based on a relative intensity of the pixels and further:

determines a mean intensity of the pixels;

compares the intensity of each of the pixels to the mean intensity;

divides the pixels into a group of non-target image pixels having high intensities and a group of target image pixels having intensities lower than the high intensities;

determines, for the pixels, an intensity standard deviation that provides an amount of variation in pixel intensity;

compares the intensity of each pixel to the intensity standard deviation; and

divides the pixels into a group of non-target image pixels having low standard deviations and a group of target image border pixels having standard deviations that are greater than any of the low standard deviations.

2. The imaging apparatus of claim 1 , wherein the characteristic includes pixel intensity.

3. The imaging apparatus of claim 1 , wherein the characteristic includes pixel color.

4. The imaging apparatus of claim 1 , further comprising a pulsed light directed toward the motorized stage.

5. The imaging apparatus of claim 1 , further comprising a stage position sensor adjacent the motorized stage.

6. An imaging apparatus, comprising:

a motorized stage;

a camera having a lens directed toward the motorized stage; and

a processor coupled to the camera, wherein the processor contains instructions which,

when executed by the processor, cause the processor to:

select at least three points of a sample adjacent the motorized stage depending on a characteristic of an image of the sample at those points, wherein the selecting

at least three points dependent on a characteristic of the image of the sample at those points includes selecting the darkest regions;

determine a stage position for each of the selected points;

focus the camera on each of the selected points;

determine an object distance from the camera lens to the sample at each of the selected points;

develop a normalized focus surface based on the stage position and the object distance for the selected points,

wherein when the processor selects at least three points of a sample adjacent the motorized stage, the processor further:

determines a distribution of the at least three selected points within the sample;

determines whether at least one of the selected points lies within each of at least two predetermined areas; and

selects additional points until at least one of the additional points lies within each predetermined area.

7. An imaging apparatus, comprising:

a motorized stage;

a camera having a lens directed toward the motorized stage; and

a processor coupled to the camera, wherein the processor contains instructions which,

when executed by the processor, cause the processor to:

select at least three points of a sample adjacent the motorized stage depending on a characteristic of an image of the sample at those points, wherein the selecting at least three points dependent on a characteristic of the image of the sample at those points includes selecting the lightest regions;

determine a stage position for each of the selected points;

focus the camera on each of the selected points;

determine an object distance from the camera lens to the sample at each of the selected points;

develop a normalized focus surface based on the stage position and the object distance for the selected points,

wherein when the processor selects at least three points of a sample adjacent the motorized stage, the processor further:

determines a distribution of the at least three selected points within the sample;

determines whether at least one of the selected points lies within each of at least two predetermined areas; and

selects additional points until at least one of the additional points lies within each predetermined area.

8. The imaging apparatus of claim 7 , wherein the selecting points dependent on a characteristic of the image of those regions includes selecting points having a high contrast relative to the regions.