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Flash band processing circuit, method of processing flash band, imaging apparatus, and imaging processing method

A technology for processing circuits and flash bands, which can be used in color signal processing circuits, televisions, optics, etc., and can solve problems such as video quality deterioration

Inactive Publication Date: 2012-07-25
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the FB is generated in multiple frames, and the FB is seen when the video is reproduced or a still screen is captured, the quality of the video can be deteriorated

Method used

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  • Flash band processing circuit, method of processing flash band, imaging apparatus, and imaging processing method
  • Flash band processing circuit, method of processing flash band, imaging apparatus, and imaging processing method
  • Flash band processing circuit, method of processing flash band, imaging apparatus, and imaging processing method

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Embodiment Construction

[0032] Hereinafter, modes for realizing the present disclosure (hereinafter, referred to as embodiments) will be described. The description will be presented in the following order.

[0033] 1. Embodiment (example of processing to detect and calibrate FB)

[0034] 2. Modified example

[0035]

[0036] [Example of processing to detect FB and correct FB]

[0037] Below, will refer to Figure 1 to Figure 14 Embodiments of the present disclosure will be described. In this embodiment, an example of a video signal processing circuit 3 that detects FB generated in a frame and corrects the detected FB, and an imaging device 1 including the video signal processing circuit 3 (hereinafter, referred to as "the present embodiment") will be described. example").

[0038] figure 1 An example of the internal configuration of the imaging device 1 of this example is shown.

[0039] First, an imaging device 1 using a general-purpose camera system will be described. The technology rela...

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PUM

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Abstract

A flash band processing circuit includes: a flash band detecting circuit that detects a start line and an end line of a flash band, which is a level difference for each line generated within a frame in accordance with flash light, based on a difference in exposure periods of a video signal output for each frame by a pixel included in an imaging device employing a rolling shutter system.

Description

technical field [0001] The present disclosure relates to a flash band processing circuit, a method of processing a flash band, an imaging device, and an imaging processing method that can be applied in a situation in which a flash band is detected, for example, by emitting a strong light to a subject ( Hereinafter, referred to as "flash") to image the subject within the obtained video. Background technique [0002] In the related art, as an imaging device used in a camera, an imaging device using a rolling shutter system is known, in which exposure is sequentially started for each horizontal line (hereinafter, referred to as "line"), and, by sequential The video signal for each line is read out, and the frames are sequentially generated. In an imaging device using a rolling shutter system, the exposure period is different for each row. Therefore, in the case where a flash or the like occurs during a period shorter than the frame rate at which the imaging device reads out a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/232H04N5/14H04N5/21H04N23/76
CPCH04N5/243H04N5/2351H04N5/2354H04N5/225H04N5/21H04N5/374H04N5/14G03B17/00H04N5/232H04N9/69H04N23/71H04N23/74
Inventor 五味田遵
Owner SONY CORP