Resources Contact Us Home
System and process for generating high dynamic range video

Image Number 18 for United States Patent #7239757.

A system and process for generating High Dynamic Range (HDR) video is presented which involves first capturing a video image sequence while varying the exposure so as to alternate between frames having a shorter and longer exposure. The exposure for each frame is set prior to it being captured as a function of the pixel brightness distribution in preceding frames. Next, for each frame of the video, the corresponding pixels between the frame under consideration and both preceding and subsequent frames are identified. For each corresponding pixel set, at least one pixel is identified as representing a trustworthy pixel. The pixel color information associated with the trustworthy pixels is then employed to compute a radiance value for each pixel set to form a radiance map. A tone mapping procedure can then be performed to convert the radiance map into an 8-bit representation of the HDR frame.

  Recently Added Patents
Vehicle running control system
Differential ring oscillator and method for calibrating the differential ring oscillator
Method and apparatus for web crawling
Mono-body defibrillation probe
Braided boomerang pet toy
Antimicrobial polysiloxane materials containing metal species
Vehicles with electric motor
  Randomly Featured Patents
Ventilating suction and exhaust fan device of sirocco type
Evaluating the position of a disturbance
Ultra-wide band communication system and method
Golf ball cover compositions containing non-carboxylic acid polymeric compatibilizers
Gas generator for a projectile
High pressure fuel supply pump for internal combustion engine
Waveguide and microstrip lines mode transformer and receiving converter comprising a polarization isolating conductor
Display device, lighting device and projector
Storage system having a virtual connection between a virtual network attached process and a management process, and an information processing apparatus and connection method thereof
Isothermal, magnetic particle-mediated acid amplification