7/25/2023 0 Comments Camera vibration mount![]() These features typically have the best results normalizing low-intensity, high-frequency, fixed vibrations, and have mixed effectiveness where movement is more intense and less patterned. While implementations of EIS vary among manufacturers, they frequently deliver modest results. Image stabilization processing taking place within the camera itself is often noted as "electronic image stabilization", or simply "EIS" on spec sheets. Integrated Electronic Image Stabilization Expensive, often costing more per channel than several cameras.Other 'image enhancement features' may be provided in appliance.3rd Party Appliances not limited to certain frequencies or vibration intensities.While several different appliances are available, the high cost of the solutions (~$5000 per channel) restricts their adoption in many cases. The device mitigates camera shake by post-processing video streams. This stabilization option takes place externally of the camera and mount, and is connected midspan between the camera and recorder. Heavy-duty Gyroscopic stabilizers cost thousands of dollars, and may require separate controllers.Adding dampeners to mounts can complicate install, and 'surveillance mount' specific kits are not common.Dampening Bushings are inexpensive and commonly available supply items.Mechanical Dampeners can mitigate the widest range of vibration sources.While these units are suited to deal with a wide range of vibration, they are costly and may not be sensitive enough to adjust for high frequency vibrations. In tougher cases, where vibrations or sway is dynamic and has powerful amplitude (eg: ocean waves, driving winds, high tower mounts), mounts featuring internal gyroscopes or floating bases that maintain the camera in a level position regardless of external deflection, can be used. Hardware installed between the camera and the mount is usually the least expensive to install, however hardware between housing and the mounting surface, while more expensive, generally offers a better result. The ultimate effectiveness of dampening hardware depends on how it is used. The image below shows an assortment of bushing dampeners than can be adapted for use on camera mounts: If vibration amplitudes are small (weak), then the addition of common rubber or neoprene bushings at the mount can absorb vibrations, especially those arising from ambient machinery or air handler units. Hardware solutions that dampen vibrations range from inexpensive vibration dampeners costing a few dollars to gyroscopically stabilized positioners costing thousands of dollars that mechanically compensate for movement. The techniques in dealing with camera vibrations take three basic forms:Įach method comes with its own advantages and disadvantages in dealing with the issues. Often, the best solution comes from a mix of software mitigation, mounting solutions, and camera placement. Many tough vibration issues require more than a single 'remedy' and the best results come from 'stacking' solutions to minimize the impacts. The more predictable movement becomes, the simpler it is to adjust images to compensate. ![]() However, mechanical mounts are unsuited to cancel high frequency movements, because they often cannot register and respond quickly enough to be effective.įor surveillance cameras, dynamic vibrations are more difficult to correct. For example, low frequency movements like rolling waves can be corrected by mechanical, motion cancelling mounts. The frequency, or how rapidly vibrations occur, play a key role in how they are addressed. Resolving intermittent, dynamic, and very strong vibrations, as in the case of wind sway, are difficult to correct while repeatable, constant, less intense vibrations, like cyclic machine vibrations are more easily resolved. The rapidity, consistency, and strength of vibrations can be measured by frequency and amplitude. In the clip below, the a stabilizing device manufacturer shows a 'before' and 'after' example that demonstrates just how disruptive vibrations can be and limitations on what stabilization can do:Ī discussion question posed the question of what options are available to combat this issue? We take a look at the root cause of the problem and the different solutions available for dealing with it.įundamentally, vibrations are waves of pressure. Cameras mounted outside are often subject to wind or shaky mounts, and units mounted indoors can be prone to vibrations from air handler vents or from machinery. Keeping cameras steady can be a real challenge. Integrated Electronic Image Stabilization.Differences between Dynamic and Fixed Vibrations.Shaky images can severely undermine image quality, strain operator eyesight and make monitoring more difficult. What can be done about the problem? In this note, we explain the issues and examine what to do:
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