An HDMI source conversion device according to one aspect of the disclosure includes an HDMI interface, an IP interface, and a converter. The HDMI interface receives a first signal based on the HDMI communication protocol. The IP interface receives address information from a control device via a network based on the Internet protocol, the control device being connected to the network, and the address information indicating the address on the network of an HDMI sink conversion device that is a device different from the control device. The converter converts the first signal based on the HDMI communication protocol into a second signal based on the Internet protocol by adding at least the address information to the first signal received by the HDMI interface. The IP interface transmits the second signal to the HDMI sink conversion device via the network.

A video signal conversion device includes a front end interface, a rear end interface, a video detector and a video processor. The front end interface is coupled to a video source to receive an input signal. The rear end interface is coupled to a video receiver. The video detector determines whether the input signal corresponds to HDR imaging format. The video detector generates a conversion command in response to the input signal corresponding to HDR imaging format. The video processor is coupled to the front end interface, the rear end interface and the video detector. When the video processor receives the conversion command, the video processor converts the input signal into an output signal with SDR imaging format. The video processor sends the output signal to the video receiver via the rear end interface.

A projector includes an image converting module, a processing module and an imaging module. The image converting module receives an original image sequence with a first frame rate. The image converting module inserts a plurality of supplement images into the original image sequence per second to output a supplement image sequence with a second frame rate, wherein the second frame rate is larger than the first frame rate. The processing module is coupled to the image converting module. The processing module receives the supplement image sequence from the image converting module. The processing module ignores the supplement images and processes and outputs the original image sequence. The imaging module is coupled to the processing module. The imaging module receives the original image sequence from the processing module and outputs the original image sequence by the first frame rate.

A transmission method in the present disclosure includes; obtaining an image and image signal characteristics information indicating one of an opto-electrical transfer function (OETF) or an electro-optical transfer function (EOTF) as image signal characteristics of the image; and transmitting a signal including the image and the image signal characteristics information. According to the transmission method in the present disclosure, a receiving device that received a high dynamic range (HDR) image and a standard dynamic range (SDR) image transmitted through broadcasting or the like can display these images appropriately.

A method is described for converting an input image into an output image, the output image including an output luminance component made of elements. The method includes: obtaining an input luminance component from the input image; determining the output luminance component, the respective ranges of the output luminance component element values and input luminance component element values being of different range extension, the determining step including: —determining a first intermediate luminance component from the input luminance component and an exponent, —obtaining a mapping profile allowing for mapping a luminance component based on the input luminance component into the output luminance component, —determining a second intermediate luminance component from the input luminance component and the obtained mapping profile, —determining the output luminance component from the first and second intermediate luminance components; and converting the input image into the output image.

There is disclosed in one example a video processor, including: an input buffer to receive an input image; a slicer circuit to divide the input image into a plurality of N vertical slices; N parallel input buffers for de-rasterization; N parallel image scalers, wherein each scaler is hardware configured to scale in a raster form, one of the N vertical slices according to an image scaling algorithm; N parallel output buffers for rerasteriztion; and an output multiplexer to combine the scaled vertical slices into a combined scaled output image.

The resolution of a low-resolution image is made high and a stereoscopic image is displayed. Resolution is made high by super-resolution processing. In this case, the super-resolution processing is performed after edge enhancement processing is performed. Accordingly, a stereoscopic image with high resolution and high quality can be displayed. Alternatively, after image analysis processing is performed, edge enhancement processing and super-resolution processing are concurrently performed. Accordingly, processing time can be shortened.

Methods for encoding and decoding high-dynamic range signals are presented. The signals are encoded in a high frame rate and are accompanied by frame-rate conversion metadata defining a preferred set of frame-rate down-conversion parameters, which are determined according to the maximum luminance of a target display, display playback priority modes, or judder control modes. A decoder uses the frame-rate conversion metadata to apply frame-rate down-conversion to the input high-frame-rate signal according to at least the maximum luminance of the target display and/or the characteristics of the signal itself. Frame-based and pixel-based frame-rate conversions, and judder models for judder control via metadata are also discussed.

A transmission method in the present disclosure includes; obtaining an image and image signal characteristics information indicating one of an opto-electrical transfer function (OETF) or an electro-optical transfer function (EOTF) as image signal characteristics of the image; and transmitting a signal including the image and the image signal characteristics information. According to the transmission method in the present disclosure, a receiving device that received a high dynamic range (HDR) image and a standard dynamic range (SDR) image transmitted through broadcasting or the like can display these images appropriately.

A video summarization device includes a user input device, a communications interface, a processing circuit, and a display device. The user input device receives a first request to view a plurality of video streams including an indication of a first time associated with the plurality of video streams. The processing circuit transmits, via the communications interface, a second request to retrieve a plurality of image frames based on the indication of the first time to at least one of a first database and a second database. The processing circuit receives, from the at least one of the first database and the second database, the plurality of image frames. The processing circuit provides, to the display device, a representation of a plurality of video stream objects corresponding to the plurality of image frames received from the at least one of a first database and a second database.