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

Image Number 15 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
Error protection for pipeline resources
Protein purification
Apparatus and method for extracting cascading style sheet rules
Systems and methods for controlling phasing of advancing substrates in absorbent article converting lines
Manufacturing method for semiconductor device carrier and semiconductor package using the same
System, method and apparatus for pausing multi-channel broadcasts
Collating device, collating method, and program
  Randomly Featured Patents
Method for applying a microsystem or a converter on a substrate, and device manufactured accordingly
Savory, flavored baking chips
Lettuce cultivar 51-0703377-B
Ornamental chain
Sequential dispensing of laundry additives during automatic machine laundering of fabrics
Automatic system for producing electrolyte impregnated capacitor elements
System and method for programming VPROM links
Refrigerator having variable volume food storage compartment
Remote controller for vehicle security system
Exercise apparatus with a pull cord central pulley attached to a carriage and a pulley locking mechanism