Detailed visual inspection of component in periodic motion
AssigneeRdi Technologies, Inc.
InventorsJeffrey R. Hay, Mark William Slemp, Kenneth Ralph Piety
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Abstract
Current embodiments provided herein include methods for visualizing repetitive movements which use video image files acquired with an appropriate frame rate, which is based on the period of repetition and minimal exposure, to reorganize the presentation of the frames to freeze the motion of the object in motion at any point in the cycle of repetition or to display the isolated frequency of repetition or a video of the amplified motion to enable the detailed visual inspection of an object in motion, and without having to stop the motion.
Claims18
A system for evaluating a moving object undergoing periodic motion using at least one video acquisition device that acquires sampling data as a plurality of video images of the moving object which are divisible into individual video image frames, and with each frame being divisible into a plurality of pixels, comprising:
- a video acquisition device configured with an adjustable frame rate to obtain a source video of the moving object, wherein the adjustable frame rate allows video images to be acquired at a sampling rate that is asynchronous with a frequency of a repeated cycle of movement of the moving object;
- a processor and a memory for storage of the source video including individual video frames;
- and a computer program operating in said processor to:
- isolate a plurality of video image frames collected from a plurality of repeated cycles of movement of the moving object, wherein each video image frame represents a portion of the source video corresponding to a specific position in the repeated cycle of movement of the moving object;
- and
- create a modified video by repositioning one or more isolated video image frames according to a specific position of the moving object in its repeated cycle of movement.
A method for evaluating a moving object undergoing periodic motion, comprising:
- acquiring a source video of the moving object at a sampling rate that is asynchronous with a frequency of a repeated cycle of movement of the moving object;
- storing the source video in a memory that is operatively connected to a processor, wherein the source video comprises a plurality of video images of the moving object, and wherein the video images are divisible into individual video image frames and the video image frames are divisible into a plurality of pixels;
- and
- executing a computer program in said processor to:
- isolate a plurality of video image frames collected from a plurality of repeated cycles of movement of the moving object, wherein each video image frame represents a portion of the source video corresponding to a specific position in the repeated cycle of movement of the moving object;
- and
- create a modified video by repositioning one or more isolated video image frames according to a specific position of the moving object in its repeated cycle of movement.
The method of clam 13, further comprising executing the computer program in said processor to freeze at least one movement inside the region of interest where motion is amplified or freeze at least one movement outside the region of interest where motion is amplified.
Dependencies are inferred from the claim text.