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
Connector with shielding device and method for manufacturing connector
Heat transfer label for decorating a metal container
Polypeptide microparticles
Multi-dimensional credibility scoring
Case for a tablet computer
Modular sport center
Systems and methods for DC-to-DC converter control
  Randomly Featured Patents
Synthesis and characterization of materials for electrochemical cells
Cathode-ray tube having activated green and blue phosphors
D/A conversion apparatus, decoder, and tape drive
On-chip data grouping and alignment
Location beacon database
Electrical connector with slotted shield
Mounting system for mounting an alignment instrument on a vehicular wheel that uses any known lug bolt pattern
System and method for clustering standalone server applications and extending cluster functionality
Water-dispersible dye/resin compositions
Decoupled check-relief valve