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Photographing apparatus, method of controlling the same, and computer-readable recording medium

A technology of a camera device and a camera unit, which is applied in the directions of image communication, TV, color TV components, etc., and can solve problems such as image quality degradation

Inactive Publication Date: 2016-10-26
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] If flickering occurs, the brightness of the captured image differs depending on the area, so the quality of the captured image decreases

Method used

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  • Photographing apparatus, method of controlling the same, and computer-readable recording medium
  • Photographing apparatus, method of controlling the same, and computer-readable recording medium
  • Photographing apparatus, method of controlling the same, and computer-readable recording medium

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Embodiment approach

[0073] According to another exemplary embodiment, the camera unit 110 may use an electronic shutter having a rolling shutter system. The electronic shutter having a rolling shutter system according to the present exemplary embodiment can repeat a reset operation, an exposure operation, and a readout operation for each row.

[0074] figure 2 is a diagram showing an image in which flickering occurs.

[0075] In the case where the camera unit 110 uses a rolling shutter system, flicker may appear in the captured image as figure 2 shown in . When flickering occurs, streaks can appear in the captured image, such as figure 2 shown in .

[0076] image 3 with Figure 4 is a diagram describing how flickering occurs.

[0077] Such as image 3 As shown in , alternating current can have a sinusoidal waveform with a predetermined frequency. For example, Korea uses alternating current with a frequency of 60 Hz, and Japan uses alternating current with a frequency of 50 Hz.

[00...

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PUM

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Abstract

A photographing apparatus includes: a photographing unit that captures a first image with a first exposure time that is set to the photographing apparatus and a second image with a second exposure time that is determined according to a flicker frequency of illumination; and an image processing unit that removes flicker by using the first image and the second image.

Description

technical field [0001] One or more exemplary embodiments relate to a camera, a method of controlling the camera, and a computer-readable recording medium storing computer program code for executing the method of controlling the camera. Background technique [0002] The imaging device generates an imaging signal by exposing the imaging device for an exposure time. The imaging device can expose only the exposure time through the shutter. A global shutter system and a rolling shutter system are used for the imaging device. [0003] The global shutter system simultaneously resets the entire screen and starts exposure. While the global shutter system does not cause flicker, it requires separate memory space in the sensor, resulting in reduced efficiency and increased cost. [0004] A rolling shutter system controls exposure in line units. Although a rolling shutter system does not require a separate storage space in the sensor, it can cause a jelly effect. That is, parallax ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/235H04N5/232
CPCH04N23/667H04N23/73H04N23/745H04N23/75H04N23/63H04N23/71H04N23/80
Inventor 陈炳宰刘相晙
Owner SAMSUNG ELECTRONICS CO LTD