For Sequential Signals (epo) Patents (Class 348/E9.033)
  • Image processing apparatus and on-vehicle camera apparatus
    Patent number: 8854421
    Abstract: An image processing apparatus includes a line buffer, an FIR filter serving as an edge enhancement filter that enhances high-frequency components of an image, and an IIR filter serving as a low-pass filter that reduces noise. The same line buffer is used by both the FIR filter and the IIR filter. According to a switching signal, switches enable the FIR filter and disable the IIR filter for a relatively low noise level while the switches enable IIR filter and disable the FIR filter for a relatively high noise level.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: October 7, 2014
    Assignee: Ricoh Company, Limited
    Inventor: Ryosuke Kasahara