Samsung Electro-mechanics Co., Ltd.

Korea Research Institute of Bioscience and Biotechnology

Dong-a University Research Foundation for Industry-academy Cooperation

Sung Mok Lee

Won Tae Choi

Joo Hyun Kim

Bong Soon Kang

Won Woo Jang

Joo Young Ha

Kyung Rin Kim

Hee Bum Lee

Boo Dong Kwak

Chul Ho Kim

Jeong-Woo Seo

Baek Rock Oh

Sun-Yeon Heo

Hak Yong Han

You Ree Jung

Jang Min Park

An optical image stabilizer for a camera module includes a camera comprising a lens; and an optical image stabilizer processor configured to: generate a movement pattern signal, adjust a position of the lens of the camera according to the movement pattern signal, and calibrate a gain according to the adjusted position of the lens.

Optical image stabilizer for a camera module and method of calibrating gain thereof

The present invention relates to a method for producing 1,3-propanediol using a mutant microorganism lacking a 2,3-butanediol synthetic gene, and more particularly to a mutant microorganism wherein a gene encoding lactate dehydrogenase and a gene encoding an enzyme which is involved in 2,3-butanediol synthesis are deleted in a microorganism having the ability to produce 1,3-propanediol from glycerol and wherein a gene encoding pyruvate decarboxylase and a gene encoding aldehyde dehydrogenase are introduced or amplified, and to a method of promoting the production of 1,3-propanediol while inhibiting the production of 2,3-butanediol by using the mutant microorganism. The use of the glycerol-fermenting mutant microorganism according to the present invention can significantly increase the production of 1,3-propanediol while minimizing the production of 2,3-butanediol.

Method for producing 1,3-propanediol using microorganism variant with deletion of 2,3-butanediol synthetic gene

An apparatus for enhancing the visibility of color images includes: a luminance value cumulative distribution calculator that calculates a cumulative distribution function of the number of pixels from a minimum value of luminance values; a baseband signal determining unit that determines baseband signal pixels having luminance values smaller than a threshold level; a luminance compensation value generator that generates luminance compensation values to apply the lower-level luminance compensation values as the pixels have higher-level luminance values, for the pixels having the luminance values larger than the threshold level; a luminance gain generator that determines a luminance gain applied to the luminance compensation values according to a mean luminance values of the input images and the level of the luminance values of the pixels to which the luminance compensation values are applied; and a luminance value enhancing unit that summing the luminance compensation values including the gain with the luminance values.

Apparatus and method for enhancing visibility of color image

An apparatus for auto white balance includes a histogram generation unit writing respective histograms of Cb values and Cr values with regard to pixels included in an input image frame, a single-tone determination unit comparing respective maximum values of the histograms of Cb values and Cr values with a first threshold value, and determining the input image frame as a single-tone image if at least one of the maximum values is higher than the first threshold value, and an auto white balance gain computation unit computing and an auto white balance gain by using color information of an input image frame and outputting the computed auto white balance gain, wherein if the input image frame is determined to be a single-tone image, the auto white balance gain computation unit outputs an auto white balance gain computed with respect to a previous input image frame.

Apparatus and method for auto white balance control considering the effect of single tone image

There is provided an apparatus for removing color noise including: a color interpolation unit performing color interpolation on a bayer pattern image output from an image sensor; a high-pass filter unit performing high-pass filtering on each of the pixels of the bayer pattern image to generate high-pass filtered values of each of the pixels; a high frequency region determining unit comparing pixel values of a target pixel, from which color noise is removed, and pixels adjacent to the target pixel with the high-pass filtered values to determine whether the target pixel is included in a high frequency region; and a color noise region determining unit using differences between color values of the target pixel interpolated by the color interpolation unit and determining whether the target pixel is included in a color noise region when it is determined that the target pixel is included in the high frequency region.

Apparatus and method of removing color noise of digital image

Growing community of inventors

Busan, South Korea

Sung Mok Lee