Resources Contact Us Home
Method and apparatus for coding an image object of arbitrary shape

Image Number 13 for United States Patent #RE42853.

It is known to represent a square block of an image which has a maximum horizontal or vertical extension N as N vectors each representing one column or row, and encode it using an N.times.N discrete cosine transform matrix. We introduce a technique which transforms an input vector, or array, representing a portion of an arbitrarily-shaped object block in which the maximum horizontal or vertical extension is at most N, by adding to it additional padding elements, to produce a vector or array which can be encoded using an N.times.N discrete cosine transform. The padding maximises the number of transformed elements which are zero. We propose encoding arbitrarily-shaped objects based on this padding technique.

  Recently Added Patents
Buck converter having reduced ripple under a light load
Method and system for remote delivery of email
Method and apparatus for communicating electronic service guide information in a satellite television system
Sense-amplifier monotizer
Sensor system
Portable electronic device holder and tether
Active gate drive circuit
  Randomly Featured Patents
Level assembly type hood hinge unit
Computer system with secured data paths and method of protection
Height sensor for turret stockpicker
Complementary field effect transistor amplifier
Compact disk carrying case
Embolic protection device
Protected erase voltage discharge transistor in a nonvolatile semiconductor memory
Spray coating device
System and method for providing and accessing educational information over a computer network
Corner shelf