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international conference on acoustics, speech, and signal processing | 1992

The architecture of a vector digital signal processor for video coding

Toshiyuki Araki; Masaki Toyokura; Masahiro Wakamori; Kunitoshi Aono

Develops a high-performance vector digital signal processor (VDSP) for video coding that can execute instructions at 60 MHz. The VDSP employs a vector pipeline (VP) architecture, which is very well suited for image processing. In the VDSP, a DCT/IDCT circuit (CCITT standard), a two-dimensional space address generator (SAG), and an enhanced ALU to the VP architecture are included, and, as a result, a performance of 2.0 GOPS (giga operation per second) was achieved. The encoder and the decoder specified in CCITT H.261 (Full-CIF mode at 15 frame/s, 64 kb/s) can be realized with two VDSP chips, and one VDSP chip, respectively.<<ETX>>


Archive | 2003

Iris encoding method, individual authentication method, iris code registration device, iris authentication device, and iris authentication program

Takeo Azuma; Kenji Kondo; Masahiro Wakamori


Archive | 1990

MOVING-IMAGE SIGNAL ENCODING APPARATUS WITH VARIABLY SELECTED QUANITIZATION STEP SIZE

Joel W. Zdepski; Kuriacose Joseph; Masahiro Wakamori; Takeshi Yukitake


Archive | 2003

Method for cerficating individual iris registering device system for certificating iris and program for cerficating individual

Kenji Kondo; Takeo Azuma; Masahiro Wakamori


Archive | 2004

Iris code generation method, individual authentication method, iris code entry device, individual authentication device, and individual certification program

Takeo Azuma; Kenji Kondo; Masahiro Wakamori


Archive | 2004

Artificial eye distinguishing method and device, artificial eye distinguishing program, iris recognition method, false printed matter distinguishing method, and image distinguishing method

Takeo Azuma; Kenji Kondo; Masahiro Iwasaki; Masahiro Wakamori


Archive | 2005

Iris registration method, iris registration apparatus, and iris registration program

Kenji Kondo; Takeo Azuma; Masahiro Wakamori


Archive | 2005

Method for registering iris, device for registering iris and program for registering iris

Kenji Kondo; Takeo Azuma; Masahiro Wakamori


Archive | 2004

Eye image imaging device

Masahiro Wakamori


Archive | 2003

Personal authentication method for certificating individual iris

Kenji Kondo; Takeo Azuma; Masahiro Wakamori

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