Image Processing Apparatus, Receiver, and Display Device

An image processing apparatus comprising:

• a receiver configured to output a still image and a moving image with a first resolution;
• a display device configured to be capable of displaying the still image and the moving image with a second resolution that is higher than the first resolution;
• and
• a transmission module configured to transmit the still image and the moving image with the first resolution between the receiver and the display device, wherein
• the receiver comprises
• a video receiver configured to receive a video signal from outside,
• a video processor configured to convert the video signal to a moving image with the first resolution and output the moving image,
• a storage controller configured to store positional information indicating a position to display a still image with the second resolution on the moving image displayed on the display device;
• a graphics processor configured to output the still image with the second resolution in response to an instruction from outside, and output the positional information stored in the storage module, and
• a multiprocessor configured to divide the still image with the second resolution to generate divisional still images with the first resolution, output the generated divisional still images and the moving image with the first resolution frame by frame, obtain divisional image positional information indicating a position to display each of the divisional still images on the moving image to be displayed on the display module based on the positional information, and output the divisional image positional information,
• the display device comprises
• a display module configured to display the moving image and an superimposed image of the moving image and the still image with the second resolution,
• a scaling processor configured to convert the first resolution of the moving image to the second resolution,
• a video storage controller configured to store a previous frame moving image in the storage module, the previous frame moving image being a frame of the moving image with the second resolution output from the scaling processor,
• a restoration processor configured to obtain the positional information based on the divisional image positional information, and restore the divisional still images to the still image with the second resolution based on the divisional image positional information,
• a blend processor configured to control the displaying of the display module, and
• a switching module configured to switch the frame of the moving image input to the blend processor,
• the video processor is configured to specify a static moving image portion and output static moving image portion information indicating a range of the static moving image portion, the static moving image portion being a static portion of the moving image with the first resolution,
• the graphics processor is configured to specify an update still image portion, and output the update still image portion and update still image portion information indicating a range of the update still image portion, the update still image portion being a portion updated in the still image with the second resolution,
• the multiprocessor is configured to replace at least a portion of the static moving image portion of the frame of the moving image with the first resolution by the update still image portion to generate a composite moving image, and output the composite moving image, the static moving image portion information, and the update still image portion information,
• the scaling processor is configured to obtain a portion corresponding to the static moving image portion from the previous frame moving image, and replaces a region corresponding to the static moving image portion of a frame of the composite moving image with the converted second resolution by the portion corresponding to the static moving image portion obtained from the previous frame moving image to output a restored moving image, and
• the restoration processor is configured to obtain the update still image portion from the composite moving image based on the update still image portion information, and replaces an area corresponding to the update still image portion of the restored still image with the second resolution by the update still image portion obtained from the composite moving image to generate a restored still image.