Various examples are directed to displaying a panoramic video at an interface comprising a focus region and a thumbnail region. The focus region may display an active field-of-view of the panoramic video, where the active field-of-view is a portion selected from the full field-of-view of the panoramic video. The thumbnail region may display a thumbnail version of the panoramic video comprising a thumbnail field-of-view that is equivalent to the full field-of-view. A distribution of color saturation levels of the thumbnail version may indicates a distribution of fields-of-view selectable from the full field-of-view.

To allow a better coordination between an image creation artist such as a movie director of photography and the final viewer, via a receiving-side display and its corresponding image processing, a method of adding display rendering specification information to an input image signal (I) comprises determining descriptive data (D) that includes at least identification information for at least one luminance regime subset of pixels of an input image; and encoding the descriptive data (D) into an output description data signal (DDO), relatable to an output image signal (O) based upon an input image signal (I), of the descriptive data (D) in a technical format standardized to be intended for use by a receiving-side display to control its image processing for changing the color properties of its rendered images.

To allow a better coordination between an image creation artist such as a movie director of photography and the final viewer, via a receiving-side display and its corresponding image processing, a method of adding display rendering specification information to an input image signal (I) comprises determining descriptive data (D) that includes at least identification information for at least one luminance regime subset of pixels of an input image; and encoding the descriptive data (D) into an output description data signal (DDO), relatable to an output image signal (O) based upon an input image signal (I), of the descriptive data (D) in a technical format standardized to be intended for use by a receiving-side display to control its image processing for changing the color properties of its rendered images.

Compared to traditional gamma-coded video, perceptually quantized video provides greater flexibility for the transmission and display management of high-dynamic range video, but it does not compresses as efficiently using existing standard codecs. Techniques are described to improve the coding efficiency of perceptually coded video by applying a color cross-talk transformation after the RGB/XYZ to LMS transformation. Such a transform increases luma and chroma correlation for color appearance models, but improves perceptual uniformity and overall coding efficiency for wide color gamut, HDR, signals.

This disclosure relates to baseline restoration methods and apparatuses and medical detecting equipment thereof. The baseline restoration method comprises: determining whether there is a high-amplitude baseline in an input signal by previous k output signals (Y.sub.1, . . . , Y.sub.k) of a filter, where k is a natural number and k≧1; setting the previous m output signals (Y.sub.1, . . . , Y.sub.m) of the filter as Y′ when there is a high-amplitude baseline in the input signal, where Y′ is a desired output signal of the filter; and using a current input signal X.sub.0, the previous n input signals (X.sub.1, . . . , X.sub.n), and the previous m output signals (Y.sub.1, . . . , Y.sub.m) of said filter to obtain a current output signal Y.sub.0 of said filter.

This disclosure relates to baseline restoration methods and apparatuses and medical detecting equipment thereof. The baseline restoration method comprises: determining whether there is a high-amplitude baseline in an input signal by previous k output signals (Y.sub.1, . . . , Y.sub.k) of a filter, where k is a natural number and k≧1; setting the previous m output signals (Y.sub.1, . . . , Y.sub.m) of the filter as Y′ when there is a high-amplitude baseline in the input signal, where Y′ is a desired output signal of the filter; and using a current input signal X.sub.0, the previous n input signals (X.sub.1, . . . , X.sub.n), and the previous m output signals (Y.sub.1, . . . , Y.sub.m) of said filter to obtain a current output signal Y.sub.0 of said filter.

Visual safety is ensured when image switching takes place. When an image is switched by nonlinear reproduction, a display property is kept switched, during a transition display period, to a transition display property with a brightness level kept lower than a normal level, on the basis of pixel statistical information regarding the image. For example, an electro-optic conversion property is controlled to a transition property or the brightness level of a backlight is suppressed.

An image capturing apparatus comprises an image pickup device with a plurality of pixels each of which includes at least two photoelectric conversion portions, a readout unit configured to read out a first image signal and an added signal obtained by adding the first image signal and a second image signal, a subtraction unit configured to subtract the first image signal from the added signal, a focus detection unit configured to detect a focus state based on the first and the second image signal, and a limiter unit configured to suppress an output of the first photoelectric conversion portion and an output of the second photoelectric conversion portion not to exceed a predetermined threshold, wherein the limiter unit suppresses the output of the first photoelectric conversion portion and the second photoelectric conversion portion for different color filters.

An image capturing apparatus comprises an image pickup device with a plurality of pixels each of which includes at least two photoelectric conversion portions, a readout unit configured to read out a first image signal and an added signal obtained by adding the first image signal and a second image signal, a subtraction unit configured to subtract the first image signal from the added signal, a focus detection unit configured to detect a focus state based on the first and the second image signal, and a limiter unit configured to suppress an output of the first photoelectric conversion portion and an output of the second photoelectric conversion portion not to exceed a predetermined threshold, wherein the limiter unit suppresses the output of the first photoelectric conversion portion and the second photoelectric conversion portion for different color filters.

An image processing device includes an equation establishing unit, a calculating unit, a determining unit, a color space transformation unit, a first adjusting unit, a 3D LUT establishing unit, and a compensating unit. By the color space transformation equation plus a compensation value in advance for compensating color temperature of each gray level of the display screen, thus variation of the color temperature between low gray level and high gray level is significantly reduced and the display quality is highly promoted. Furthermore, the 3D LUT obtained by the compensated color space transformation equation can be used to compensate image parameters of pixels of a display panel so as to optimize the image performance of the display panel.