Picture image information band compression and transmission system
AssigneeOlympus Optical Co., Ltd.
InventorsMasaharu Sakamoto, Masahiro Aoki
Life of this patent
Estimating the term…
Abstract
A picture image information band compression and transmission process includes the steps of providing one set of three scanning lines making information of the first scanning line of each one set as an estimation scanning line, estimating a picture element to be estimated by four consecutive picture elements, preparing estimated picture image informations, and translating the estimation reference scanning line and two estimated picture image information into run length codes and into mode codes, respectively, and compressing and transmitting the run length codes.
Claims10
A picture image information band compression and transmission process, comprising the steps of providing one set of three scanning lines a b c, making information of the first scanning line a of each one set a b c as an estimation scanning line, estimating a picture element e to be estimated by four consecutive picture elements a, b, c, d and preparing estimated picture image informations b ', c ' and translating estimated picture image information a ' showing as an estimation reference scanning line and both two estimated picture image information into run length codes c a " and into a mode code c b ", respectively, and compressing and transmitting said run length codes c a " and c b".
A picture image information band compression and transmission process for selecting and processing digital picture elements occurring in a picture area of at least first, second and third successive scanning lines, said picture elements being aligned in columns along said picture area, comprising the steps of:
- selecting three consecutive adjacent picture elements in said first scanning line, said three consecutive adjacent picture elements being disposed in first, second and third columns;
- selecting a fourth picture element in said second scanning line, said fourth picture element being disposed in said first column;
- estimating a picture element adjacent to said fourth picture element in a direction of scanning by selecting an estimated parameter in dependence of a predetermined consecutive combination of said first, second, third and fourth picture elements;
- comparing the estimated picture element with an actual picture element adjacent to said fourth picture element in the direction of scanning;
- and
- determining coincidence or non-coincidence of said estimated picture element with said actual picture element, allotting a "zero" to coincidence, and a "one" to lack of coincidence, the consecutively determined coincidence or non-coincidence becoming an estimated reference information scanning line.
Dependencies are inferred from the claim text.