| 摘要 |
A solid state motion analysis system (10) stores images of an event (14) at a fast frame rate and plays back the images at a slower frame rate to facilitate analysis of the event. The motion analysis system includes a solid state imager (12) which is selectively operable at different frame rates and further includes a solid state memory (32) for storing a plurality of image frames. A video enhancement/trigger circuit (46) includes a comparison circuit (48) to compare selected images produced by the imager (12) to determine a change in the value of an image characteristic between the images. When a change is determined, the video enhancement circuit (46) enhances the region of the image which changes and may also produce a trigger signal to alter the mode of operation of the motion analysis system (10). Thus, storage of image frames may be started or stopped when a difference in luminance or color occurs between successive image frames, such difference indicating a change in the event. Video enhancement includes enhanced grey scale and pseudo color enhancement. |
