Quick Depth Composition
D.F.D Method and Volume Rendering

High Depth of Field Images of Targets with Varying Depth.

Another advantage of digital microscopes is their ability to create images with overal focus. Using a digital microscope, such as the KEYENCE VHX-1000, a series of images at varying focus depths can be combined into a single images with overall focus. Points on the target the closest to the microscope and farthest from the microscope are completely in focus resulting in a image with overal focus. The KEYENCE VHX-1000 automatically creates these images with a single click of a button. Simply turn the focus-adjustment knob while observing the real-time image on the screen and capture images at different focus depth.

This function results in substantial saving in time and labor that is usually required for composing these types of images.

KEYENCE VHX-1000 Depth Composition Simulation

Depth of Field vs. Magnification

Depth of field is the distance range in front of and behind the focal plane where the image is in focus and the image appears "sharp". While the depth of field is dependent upon a variety of factors, magnification plays a major role in determing the size of this "range". Generally the higher the magnification the smaller depth of field. Thus the image composition function is crucial in microscopy and digital microscopes greatly increase the efficiency of producing images with overall focus.

High-quality depth composition

Composing sharp images with superior depth-of-field while correcting the edge deviations .KEYENCE’s original algorithm is used to correct edge deviation and magnification fluctuations caused by the shift of focus position. This function achieves sharp and natural depth composition without blurred images. In addition, the image-capturing time required for image composition is reduced by approximately 70% when compared to KEYENCE’s conventional models.