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
Method of requesting CQI reports
Image processing apparatus, control method for the same, and storage medium
Sensing device and electronic apparatus
Blended block copolymer composition
Escalating data backup protection in response to a failure in a cluster of nodes
Switched capacitor hold-up scheme for constant boost output voltage
Method for detection and characterization of a microorganism in a sample using time-dependent intrinsic fluorescence measurements
  Randomly Featured Patents
Synthesis of N-substituted amides by condensation of nitriles with certain organic hydroxyl compounds
Securing device involving a piston propelled by compressed gas
Delay correlation analysis and representation for vital complaint VHDL models
Mud saver valve
Conference signal anomaly detection
Thin film electrical energy storage device
Aqueous phase continuous, coal fuel slurry and a method of its production
Device for alerting users of medicine
Composite diaphragm for diaphragm pumps having two different shore-hardness materials