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US20080055435: Viewfinder and image pickup apparatus

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Filing Information

Inventor(s) Yoshimasa Kawamura · Yoshihiro Date ·
Assignee(s) Sony Corporation ·
Correspondent LERNER, DAVID, LITTENBERG,;KRUMHOLZ & MENTLIK ·
Application Number US11897075
Filing date 08/29/2007
Publication date 03/06/2008
Predicted expiration date 08/29/2027
U.S. Classifications 348/253  · 348/E09.037  · 348/E09.001  · 348/333.11  ·
International Classifications H04N964  ·
Kind CodeA1
Foreign Priority JPP2006239044 - 09/04/2006 ·
13 Claims, 5 Drawings


Abstract

A viewfinder configured to display a captured image includes: an edge correction signal generation unit configured to generate a peaking signal corresponding to an edge enhancement correction target hue that is a hue for which edge enhancement correction will be performed from three primary color signals generated from an input video signal; a signal adding unit configured to add the peaking signal generated by the edge correction signal generation unit to each of the three primary color signals generated from the input video signal; and a driving signal generation unit configured to generate a driving signal for a display device from the three primary color signals to each of which the peaking signal has been added by the signal adding unit.

Independent Claims | See all claims (13)

  1. 1. A viewfinder configured to display a captured image comprising: edge correction signal generating means for generating a peaking signal corresponding to an edge enhancement correction target hue that is a hue for which edge enhancement correction will be performed from three primary color signals generated from an input video signal; signal adding means for adding the peaking signal generated by the edge correction signal generating means to each of the three primary color signals generated from the input video signal; and driving signal generating means for generating a driving signal for a display device from the three primary color signals to each of which the peaking signal has been added by the signal adding means.
  2. 6. An image pickup apparatus provided with an image pickup lens that has a focus control function, an image pickup device that generates a video signal from red light, green light, and blue light into which incident light is color-separated and outputs the generated video signal, and a viewfinder, the viewfinder comprising: edge correction signal generating means for generating a peaking signal corresponding to an edge enhancement correction target hue that is a hue for which edge enhancement correction will be performed from three primary color signals generated from an input video signal; signal adding means for adding the peaking signal generated by the edge correction signal generating means to each of the three primary color signals generated from the input video signal; and driving signal generating means for generating a driving signal for a display device from the three primary color signals to each of which the peaking signal has been added by the signal adding means.
  3. 10. A display signal generation circuit configured to drive a display device, comprising: edge correction signal generating means for generating a peaking signal corresponding to an edge enhancement correction target hue that is a hue for which edge enhancement correction will be performed from three primary color signals generated from an input video signal; signal adding means for adding the peaking signal generated by the edge correction signal generating means to each of the three primary color signals generated from the input video signal; and driving signal generating means for generating a driving signal for the display device from the three primary color signals to each of which the peaking signal has been added by the signal adding means.
  4. 11. A viewfinder configured to display a captured image comprising: an edge correction signal generation unit configured to generate a peaking signal corresponding to an edge enhancement correction target hue that is a hue for which edge enhancement correction will be performed from three primary color signals generated from an input video signal; a signal adding unit configured to add the peaking signal generated by the edge correction signal generation unit to each of the three primary color signals generated from the input video signal; and a driving signal generation unit configured to generate a driving signal for a display device from the three primary color signals to each of which the peaking signal has been added by the signal adding unit.
  5. 12. An image pickup apparatus provided with an image pickup lens that has a focus control function, an image pickup device that generates a video signal from red light, green light, and blue light into which incident light is color-separated and outputs the generated video signal, and a viewfinder, the viewfinder comprising: an edge correction signal generation unit configured to generate a peaking signal corresponding to an edge enhancement correction target hue that is a hue for which edge enhancement correction will be performed from three primary color signals generated from an input video signal; a signal adding unit configured to add the peaking signal generated by the edge correction signal generation unit to each of the three primary color signals generated from the input video signal; and a driving signal generation unit configured to generate a driving signal for a display device from the three primary color signals to each of which the peaking signal has been added by the signal adding unit.
  6. 13. A display signal generation circuit configured to drive a display device, comprising: an edge correction signal generation unit configured to generate a peaking signal corresponding to an edge enhancement correction target hue that is a hue for which edge enhancement correction will be performed from three primary color signals generated from an input video signal; a signal adding unit configured to add the peaking signal generated by the edge correction signal generation unit to each of the three primary color signals generated from the input video signal; and a driving signal generation unit configured to generate a driving signal for the display device from the three primary color signals to each of which the peaking signal has been added by the signal adding unit.

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