Image forming apparatus

Details Image forming apparatus Image forming apparatus

1992-07-10

2000-01-18

Nguyen, Phu K.

Computer graphics processing and selective visual display system

Computer graphics processing

Shape generating

345147, 345148, 345149, 345442, 345136, 345137, 395 22, 395 24, 395 25, 395128, 395129, 395132, G09G 500

Patent

active

06016154&

ABSTRACT:
An image forming apparatus, such as a laser printer, ink jet printer, or a thermal transfer, which comprises a neural network. The apparatus improves image quality by reducing a zigzag included, e.g., in input image data, reducing the circuit size by reducing the number of bits having small weights for an input combination, and concurrently correcting the size of center, left and right picture elements in a predetermined window. The neural network outputs correction data for the size and position of the center dot in a window in response to an input of dot image data in a window or subdot pattern exposure data for the center dot. Additionally, the neural network uses any of the three values, +1, -1 and 0, for the coefficient of input combination for a hidden layer neuron, e.g., after a teacher pattern is learned. Further, the neural network outputs correction data for 3.times.N subblocks of picture elements obtained by dividing blocks of picture elements in the center, left and right of a window.

REFERENCES:
patent: 3360883 (1968-01-01), Glanzer
patent: 3573789 (1971-04-01), Sharp et al.
patent: 3737855 (1973-06-01), Cutaia
patent: 3803631 (1974-04-01), Nucklos et al.
patent: 3846754 (1974-11-01), Oka et al.
patent: 3871003 (1975-03-01), Kondo et al.
patent: 3952311 (1976-04-01), Lapeyre
patent: 3988742 (1976-10-01), Meier
patent: 3991868 (1976-11-01), Robinson et al.
patent: 4032977 (1977-06-01), Liao
patent: 4084259 (1978-04-01), Katagi
patent: 4107687 (1978-08-01), Pfeifer et al.
patent: 4124870 (1978-11-01), Schatz et al.
patent: 4150400 (1979-04-01), Wong
patent: 4212009 (1980-07-01), Aldeman et al.
patent: 4242678 (1980-12-01), Somerville
patent: 4280144 (1981-07-01), Bacon
patent: 4323974 (1982-04-01), Sekigawa
patent: 4353337 (1982-10-01), Rosaen
patent: 4355337 (1982-10-01), Sekigawa
patent: 4386272 (1983-05-01), Check, Jr. et al.
patent: 4437122 (1984-03-01), Walsh et al.
patent: 4450483 (1984-05-01), Coviello
patent: 4455562 (1984-06-01), Dolan et al.
patent: 4460909 (1984-07-01), Bassetti et al.
patent: 4544264 (1985-10-01), Bassetti et al.
patent: 4544922 (1985-10-01), Watanabe et al.
patent: 4625222 (1986-11-01), Bassetti et al.
patent: 4681424 (1987-07-01), Kantor et al.
patent: 4715006 (1987-12-01), Nagata
patent: 4786923 (1988-11-01), Shimizu
patent: 4847641 (1989-07-01), Tung
patent: 5131072 (1992-07-01), Yoshizawa et al.
patent: 5148497 (1992-09-01), Pentland et al.
patent: 5251268 (1993-10-01), Colley et al.
IEEE, "A Neural Architecture Applied to the Enhancement of Noisy Binary Images without Prior Knowledge", Frank Y. Shih, et al., Nov. 6, 1990, pp. 699-705.
Frankline C. Crow, "The Aliasing Problem in Computer-Generated Shaded Images", Graphics and Image Processing, vol. 20, 1977, pp. 799-805.
Okada, et al., "Multi-Level Dot Display Method of Lines and Arcs", The Transaction of the Institute of Electronics, Information and Communication Engineers on Information and Systems,vol. J61-D, No. 7, 1978, pp. 491-493.
Barros, et al., "Generating Smooth 2-D Monocolor Line Drawings on Video Displays", vol. 13, No. 2, 1979, pp. 260-269.
Nikkei Electronics, 1981, pp. 96-99.
Nishida, et al., "Removing jags from line drawings on a color display", Computer Vision,1981, pp. 2 and 3.
Rumelhart, et al., "Learning Internal Representation by Error Propagation", Parallel Distributed Processing, vol. I, II, Chapter 8, 1986, pp. 319-362.

Affiliated with

Also associated with

Rating

Image forming apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image forming apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-566286