Patent ID: 9402022
Filing Date: 2016-07-26
CPC Classification: H04N

Claim Text:
1. An imaging apparatus with a focus assist function, the apparatus comprising: an imager configured to obtain an image signal from a subject formed by a lens; a high-frequency signal extractor configured to extract a high-frequency signal from the image signal; a modulation level calculator configured to determine a magnitude of a modulation level signal in each of regions, into which a screen of the image signal is divided, in accordance with an amplitude level of the high-frequency signal; a level modulator configured to modulate the amplitude level of the high-frequency signal using the modulation level signal to obtain a focus assist signal; and a focus assist signal synthesizer configured to synthesize the focus assist signal with the image signal to output a resultant signal, wherein the level modulator performs a coring process for the amplitude level of the high-frequency signal using the modulation level signal as a continuously varying threshold value, thereby obtaining the focus assist signal.