Two-dimensional casual filter approximation using a strictly causal filter

✍ Scribed by Takao Hinamoto; Anastasios N. Venetsanopoulos; Mitsuji Muneyasu; Sadao Maekawa

• Book ID: 103090261
• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 626 KB
• Volume: 321
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(86)90006-2

✦ Synopsis

A technique is developed for approximating a two-dimensional (2-D) causal recursive digitalJilter using a strictly causaljilter. This is done via singular value decomposition of twojnite Hankel matrices and a certain mapping technique. Since the resultingJilter issimpler than a causaljilter and it is separable in the denominator, the implementation is advantageous and the stability check is very easy. An example is given to illustrate the utility of the proposed technique.