Sony Corporation

Sony Group Corporation

Yukihiro Kinoshita

Koji Kamiya

Kazushige Takahashi

Manabu Hara

Yasutaka Nakashima

Hiromasa Ikeyama

Yoshiaki Nishide

Sohhei Okada

Provided is an image analysis unit that receives an image to be a down-conversion processing target as an input and generate adjacent pixel difference information used to select a pixel to be output to a down-converted image, and an output image generation unit that selects a pixel pair to be an adjacent pixel used for the down-converted image on the basis of the adjacent pixel difference information and generate the down-converted image by executing an adjustment of the selected pixel pair. The image analysis unit calculates a difference of an adjacent pixel pair of a processing block constituent pixel, generates a sorting result of arranging the differences in descending order, and the output image generation unit selects the pixel pair to be used for the down-converted image in descending order of difference values on the basis of the sorting result.

Image processing apparatus and image processing method

This image pickup apparatus includes: an image pickup unit including an image pickup element; a first video signal processing unit that generates a first video signal having a first resolution from a pixel signal obtained by the image pickup unit; a second video signal processing unit that sets a plurality of divided areas for spatially segmenting the first video signal generated by the first video signal processing unit, cuts out the first video signal in a region smaller than a size of the corresponding divided area as a block from the first video signal in each of the individual divided areas, and connects them to one another, to thereby generate a second video signal having a second resolution lower than the first resolution; and a view finder that displays the second video signal.

Image pickup apparatus, video signal processing apparatus, and video signal processing method

This image pickup apparatus includes a VF signal processing unitthat downconverts a first video signal having a 4K resolution to thereby generate an downconverted video signal having an HD resolution, calculates each of pieces of differential data from an average luminance value of luminance values of 2 horizontal&#xd7;2 vertical pixels of a center portion in a region of 4 horizontal&#xd7;4 vertical pixels of a first video signal, which correspond to 2 horizontal&#xd7;2 vertical pixels of the downconverted video signal, calculates an addition value for each pixel of 2 horizontal&#xd7;2 vertical pixels of the center portion on the basis of each piece of differential data, and individually adds the luminance values of 2 horizontal&#xd7;2 vertical pixels of the downconverted video signal to thereby generate a second video signal having the HD resolution.

Provided is an image signal processor, including: an integrator configured to integrate each frame of an image signal; a first flicker corrector configured to extract a flicker component from the integrated value obtained by the integrator, the flicker component depending on a frequency of a light source, and to reduce a flicker component from the integrated value sequentially; and a second flicker corrector configured to generate a reference image without a flicker component based on the correction result of the integrated value corrected by the first flicker corrector, and to correct a flicker of the image signal based on the reference image.

Image signal processor that reduces a flicker component of an image signal depending on a level change between continuous frames

A noise correction circuit that detects and corrects noise included in an image signal output from an image sensor is provided. The noise correction circuit includes a noise determining unit, a noise removing unit, and a random number adding unit. The noise determining unit is configured to calculate an average value of a signal level in a predetermined range of the image signal output from the image sensor and use the calculated average value to calculate a noise component in a predetermined direction. The noise removing unit is configured to remove noise from the image signal output from the image sensor in response to the noise component determined by the noise determining unit. The random number adding unit is configured to add a random number at a level not determined by quantization of the image signal to the image signal after removal of the noise by the noise removing unit.

Noise correction circuit, imaging apparatus, and noise correction method adding random number after noise removal

A streaking correction signal generating circuit includes a light-shield waveform detecting unit configured to detect signal levels of respective lines in a horizontal light shield by using an output signal of the horizontal light shield of an image sensor; a black level detecting unit configured to detect a black level by using an output signal of a vertical light shield of the image sensor; and a subtracting unit configured to subtract the black level detected by the black level detecting unit from each of the signal levels of the respective lines in the horizontal light shield detected by the light-shield waveform detecting unit so as to generate streaking correction signals of the respective lines.

Streaking correction signal generating circuit, streaking correction signal generating method, program, streaking correcting circuit, and imaging device

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Tokyo, Japan

Yukihiro Kinoshita