Invention Grant
- Patent Title: Video image pickup apparatus and exposure guide display method
- Patent Title (中): 视频摄像设备和曝光指南显示方式
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Application No.: US12461690Application Date: 2009-08-20
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Publication No.: US08379140B2Publication Date: 2013-02-19
- Inventor: Takeshi Kido , Toshihide Kobayashi , Kazunori Shioda
- Applicant: Takeshi Kido , Toshihide Kobayashi , Kazunori Shioda
- Applicant Address: JP Yokohoma
- Assignee: JVC Kenwood Corporation
- Current Assignee: JVC Kenwood Corporation
- Current Assignee Address: JP Yokohoma
- Agency: Nath Goldberg & Meyer
- Agent Jerald L. Meyer; Stanley N. Protigal
- Priority: JPP2008-213152 20080821
- Main IPC: H04N5/238
- IPC: H04N5/238 ; H04N5/222

Abstract:
A video image pickup apparatus (10) includes an image sensor (120), a knee processor (132) for performing a compression in a high-luminance characteristic interval of a picture signal based on an output signal of the image sensor, a block luminance calculator (151) for dividing a frame of image based on the output signal of the solid-state image pickup device into a set of blocks, calculating a set of luminance indices of respective blocks, an extreme extractor (152) for extracting a block having a highest luminance index, together with the luminance index, a display information generator (153) for generating a set of pieces of image information for exposure guide display including an image representing a region of the extracted block and an image representing the luminance index, an image superposer (160) for superposing the set of pieces of image information for exposure guide display on a frame of image based on the compressed picture signal to generate a frame of superposed image, and a view finder (170) for displaying the frame of superposed image.
Public/Granted literature
- US20100045824A1 Video image pickup apparatus and exposure guide display method Public/Granted day:2010-02-25
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