Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1996-06-05
1998-07-14
Wu, Xiao
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345114, 345150, 345 2, 345156, G09G 500
Patent
active
057811741
ABSTRACT:
A "city block" image subject to pointing is given as a first image V.sub.a. A "hand" image serving as a pointer pointing something out on the first image V.sub.a is given as a second image V.sub.b. A mixer is provided which assigns a weight to pixel data of V.sub.a as well as to pixel data of V.sub.b, multiplies each pixel data by its weight, summing the results, and outputting the results as resulting pixel data. A comparator is provided which sends out a coincidence signal when a match is found between pixel data of V.sub.b and a "hand" color requirement defined by given condition data. A data selector is provided which selects and outputs an output of the mixer when the comparator sends out a coincidence signal while otherwise it selects and outputs pixel data of V.sub.a, Pixels used to forming the "hand" are specified from V.sub.b. With respect to such specified pixel, translucent synthesis of V.sub.a and V.sub.b is carried out. Pixels other than the specified pixels are used to display V.sub.a whereby a sharp synthetic image containing pointing information is obtained.
REFERENCES:
patent: 4393394 (1983-07-01), McCoy
patent: 4682297 (1987-07-01), Iwami
patent: 4689616 (1987-08-01), Goude
patent: 4827253 (1989-05-01), Maltz
patent: 4924299 (1990-05-01), Mizuno
patent: 5239373 (1993-08-01), Tang
H. Ishii et al., "Toward An Open Shared Workspace: Computer and Video Fusion Approach of Teamworkstation", Communications of the ACM, vol. 34, No. 12, Dec. 1991, pp. 37-50.
Sayama Takuya
Uya Masaru
Matsushita Electric - Industrial Co., Ltd.
Wu Xiao
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