Hisilicon VMS: A Comprehensive Guide to Removing Video Overlays

Introduction

Video overlays are graphical elements superimposed onto a video stream. They are commonly used for displaying information such as channel logos, closed captions, and on-screen graphics. While video overlays can be useful, they can also be distracting or obstructive in certain situations. In this article, we will provide a comprehensive guide on how to remove video overlays from Hisilicon VMS systems.

Why Remove Video Overlays from Hisilicon VMS

There are several reasons why you might want to remove video overlays from your Hisilicon VMS system:

• Improved image quality: Removing overlays can reduce visual clutter and improve the overall image quality of the video stream.
• Increased flexibility: Without overlays, you have more freedom to customize the appearance of the video feed to suit your specific needs.
• Reduced bandwidth consumption: Overlays can add additional data to the video stream, which can increase bandwidth consumption and impact network performance.
• Privacy concerns: Some overlays may contain sensitive information, such as channel branding or user data. Removing them can help protect privacy.

How to Remove Video Overlays from Hisilicon VMS

There are two main methods for removing video overlays from Hisilicon VMS systems:

1. Configuration via VMS Software

• Log in to the Hisilicon VMS software.
• Navigate to the "Device Manager."
• Select the device from which you want to remove overlays.
• Click on the "Configuration" tab.
• Locate the "Video Overlay" section.
• Disable the "Enable Video Overlay" option.
• Save the changes and restart the device.

2. Editing the Camera Configuration File

• Obtain the camera configuration file (usually named "camera.cfg") from the device.
• Open the file in a text editor.
• Locate the line that starts with "overlay_enable=".
• Set the value after the equal sign to "0" to disable overlays.
• Save the file and upload it to the device.
• Restart the device to apply the changes.

Tips and Tricks

• If you only want to remove certain overlays, you can use the "Overlay Mask" feature in the VMS software to specify which overlays to disable.
• Some Hisilicon VMS systems support the use of third-party overlays. If you want to use custom overlays, consult the device documentation for instructions.
• If you encounter any issues while removing overlays, check the device logs for error messages.

Common Mistakes to Avoid

• Incorrect file editing: Ensure that you make changes to the correct configuration file and that you save it in the correct format.
• Incomplete changes: Make sure to disable all overlays that you want to remove, including both video and OSD (on-screen display) overlays.
• Not restarting the device: Changes will not take effect until the device is restarted.

Benefits of Removing Video Overlays from Hisilicon VMS

Removing video overlays from Hisilicon VMS systems can provide numerous benefits:

• Improved image quality and reduced visual clutter
• Increased flexibility and customization options
• Reduced bandwidth consumption
• Enhanced privacy protection

Conclusion

Removing video overlays from Hisilicon VMS systems is a straightforward process that can provide significant benefits. By following the steps outlined in this guide, you can effectively disable overlays and enhance the video quality and flexibility of your VMS system.