Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Masahiko Achiha"'
Publikováno v:
The Journal of The Institute of Image Information and Television Engineers. 66:J413-J419
Publikováno v:
The Journal of The Institute of Image Information and Television Engineers. 62:1777-1784
Publikováno v:
The Journal of the Institute of Television Engineers of Japan. 47:1237-1245
A new motion detection scheme that extracts one-frame differences in PAL signals is described. A high-precision motion-adaptive luminance-chrominance (YC) separation and motion-adaptive field rate up-conversion using this motion information are also
Autor:
Masahiko Achiha, Taiji Nishizawa
Publikováno v:
The Journal of the Institute of Television Engineers of Japan. 36:936-945
Publikováno v:
The Journal of the Institute of Television Engineers of Japan. 29:33-37
テレビ電話における走査周波数と標本化周波数をPLOやバッファメモリーを用いずに, 全ディジタル的にロックする方式を提案した.本方式を1MHzテレビ電話信号を4ビットDPCM符号化して伝送
Publikováno v:
SMPTE Journal. 93:470-476
In a conventional NTSC monitor, such impairments as cross-color, cross-luminance, line flicker, and line crawl limit both picture quality and resolution. A newly developed high-resolution converter removes impairments caused by composite, interlaced
Publikováno v:
The Journal of the Institute of Television Engineers of Japan. 38:249-257
Autor:
Kazuo Ishikura, Masahiko Achiha, Sakamoto Toshiyuki, Isao Nakagawa, Shigeru Hirahata, Okuda Akihide, Kenji Katsumata, Suzuki Sunao, Masato Suyigama, Takaaki Matono
Publikováno v:
IEEE Transactions on Consumer Electronics. :98-108
Though the existing TV standard (NTSC) is a highly sophisticated method to transmit a color television signal without a wide frequency bandwidth, it has some intrinsic problems as follows. (1) Cross-luminance (hanging dots) and cross-color interferen
Publikováno v:
The Journal of the Institute of Television Engineers of Japan. 41:655-662
Publikováno v:
The Journal of the Institute of Television Engineers of Japan. 43:60-66
現行カラーテレビ信号から高画質な画像を得るIDTVの動き適応形信号処理に適用するため, 複合カラーテレビ信号から動き情報を抽出する動き検出方式について検討を加えた.まず, 動き検