ClearVue HD

ClearVue HD is a stand alone unit that provides professionals with instant enhancement of video streams that have been degraded by atmospheric factors such as fog.
The groundbreaking product examines each pixel of a fogged image and by a patented process instantly corrects it so that the original sharpness and natural colour is restored.

  • Detects fog, and applies this information as a text message on the video screen.
  • Closed caption system will estimate the visual range of the camera view being displayed
  • Highlights the level of hazard with a colour coded warning n the screen, to attract the attention of a video control room operative.
  • All ClearVue models are also capable of enhancing the capability of existing cameras in low-light levels.
  • Retaining colour information useful for both broadcast and surveillance applications, information that would otherwise be lost if a monochrome camera, image intensifier or thermal imager were used.

The ClearVue unit automatically provides optimum enhanced video for a variety of input/output video standards.

The unit is a fully CE certified product in a standard 19” rack, 1 U high (1.75”, 44.5 mm), housing.
After initial set-up, using the front panel control, there is no need for further user intervention.

Features & Benefits

Realtime Processing

Because of the innovative method of correction and the speed of processing, ClearVue works on real-time video streams such as outside broadcast feeds. The unit automatically senses and adapts to changing weather conditions and requires no user intervention after the initial setup

Pre-Recorded Video

When real time video feed is not available ClearVue is able to process pre-recorded video tapes and clean up the video image.This is particularly useful for legacy recordings made in adverse environmental conditions.

Dmist Technology

The following is a short introduction to some aspects of Dmist’s patented video enhancement technology.

Under clear conditions, the only light entering a camera is that directly reflected by objects in the field of view. If haze, fog, drizzle, rain or smoke is present then some of the light originating from the primary light source (normally the sun, but could be artificial light sources) is scattered so that it enters the camera (termed “airlight”). The resultant image seen by the camera is essentially the sum of the original unaffected but attenuated scene image and the image of the airlight. The intensity of the airlight at any point in the image is a function of:

  1. Size and composition of scattering particles
  2. Concentration of particles
  3. Scene-camera range
  4. Illumination distribution

There is a common belief that a dispersive medium such as fog scatters the light originating from the scene itself and so blurring the image to such an extent that original image recovery is very difficult (if not impossible). The simple simulation of a “foggy” scene shown below suggests that this is not the case. An image of a greyscale ramp (representing the general range depth of the scene) is added to the “ideal” image.

The result is a characteristic foggy scene with the background obscured and all colours appearing washed out. The technical and innovative challenge is to reverse this process; provided with just the “foggy” scene, estimate the contribution due to airlight scattering and so recover the original scene.

Under poor atmospheric conditions (haze, fog, drizzle, etc.), our technology estimates the contribution of the dispersive intervening medium to the observed image. This is determined using models based on the physics of atmospheric scattering. As the degree of degradation will change over time, this estimate is updated regularly. The scattering contribution is calculated for each of the three colour channels (red, green and blue). This permits the accurate reconstruction of true scene colours in the enhanced image.

Applications for Dmist ClearVue HD

Dmist patented enhancement technology can be used wherever there is a requirement for optimum video quality under adverse visibility conditions.
There is no other proven technology capable of providing such automatic, principled enhancement in real-time and in full natural colour.
The principal application areas are listed below, but we are still discovering new ones.

  • Safe Cities
  • Highways
  • Tunnels
  • Maritime, Ports
  • Border Control
  • Airports
  • Railways, Trams, Underground
  • Navigation aids – Aircraft, Trains, Road Vehicles, Ships
  • Emergency vehicles and Rescue Services
  • Utilities – Water, Power
  • Offshore
  • Underwater inspection
  • Outside broadcast TV – Air, Sea and Land
  • Aerial surveillance
  • Military applications – battlefield, submarine, surface, airborne
  • Professional Video

  • Helicopter Rescue
    Monitoring & Training

 

Problem:

  • Spray obscures the winch operator’s view of the rescue location
  • Fog and mist is often encountered
  • Recording the rescue with video for audit trail is often not satisfactory

  • Fire Service Video Recording
    Safety, Search & Audit

 

Problem:

  • Smoke obscures the fire crew’s view of rescue location
  • Fire vehicles with CCTV can monitor and record operation
  • Recording the rescue with video for audit trail is often not satisfactory

  • Airport CCTV
    Safety & Security

 

Problem:

  • Spray obscures the camera
  • Camera lens mists & poor visibility is experienced
  • Safety & security is compromised

  • Borders & Bridges CCTV
    Safety & Security Monitoring

 

Problem:

  • Fog, mist, rain and snow is often encountered on roads
  • Camera lens mists & CCTV vision restricted
  • Safety & security becomes compromised