Display apparatus and control method thereof
A display apparatus includes a conversion unit for converting first video data having a first frame rate to second video data having a second frame rate which is “n” times as high as the first frame rate (“n” being an integer of two or larger), and a display unit for displaying the second video data. When the first video data is video data of two successive frame images having different brightnesses, the conversion unit performs a first frame rate converting process for converting the first video data to the second video data by outputting a frame image group made of two successive frame images in the first video data “n” times in a row at the second frame rate. Consequently, the frame rate converting process can be performed without causing a deterioration of a visual effect such as an HDR effect, and a viewing environment comfortable for the user can be realized.
1. A display apparatus comprising:
a conversion unit configured to convert first video data having a first frame rate to second video data having a second frame rate, wherein the second frame rate is “n” times as high as the first frame rate (“n” being an integer of two or larger); and
a display unit configured to display the second video data,
wherein, when the first video data is video data of two successive frame images having different brightnesses, the conversion unit performs a first frame rate converting process for converting the first video data to the second video data by outputting a frame image group made of two successive frame images in the first video data “n” times in a row at the second frame rate.
2. The display apparatus according to claim 1 , wherein, when the first frame rate is lower than a predetermined threshold, the conversion unit performs the first frame rate converting process.
3. The display apparatus according to claim 1 , wherein, when the conversion unit performs the first frame rate converting process, the display unit displays a message and/or an image indicating that video data subjected to the first frame rate converting process is to be displayed.
4. The display apparatus according to claim 1 , wherein the conversion unit performs the first frame rate converting process in response to reception of a command to start transmission of the first video data of successive two frame images having different brightnesses, from a video output apparatus for outputting the first video data.
5. A display apparatus comprising:
a conversion unit configured to convert first video data having a first frame rate to second video data having a second frame rate, wherein the second frame rate is “n” times as high as the first frame rate (“n” being an integer of two or larger); and
a display unit configured to display the second video data,
wherein, when the first video data is video data of two successive frame images having different brightnesses, the conversion unit performs a frame rate converting process for converting the first video data to the second video data by outputting an i-th (i being an integer of one or larger) frame image and an i+1th frame image in the first video data in order at the second frame rate, and then, performing a process for generating two interpolation frame images respectively from a frame image pair made of the i-th frame image and the i+2th frame image of the first video data and a frame image pair of the i+1th frame image and the i+3th frame image of the first image data and outputting the two interpolation frame images n−1 times in order at the second frame rate.
6. The display apparatus according to claim 5 , wherein, when the first frame rate is lower than a predetermined threshold, the conversion unit performs the frame rate converting process.
7. The display apparatus according to claim 5 , wherein, when the conversion unit performs the frame rate converting process, the display unit displays a message and/or an image indicating that video data subjected to the frame rate converting process is to be displayed.
8. The display apparatus according to claim 5 , wherein the conversion unit performs the frame rate converting process in response to reception of a command to start transmission of the first video data of successive two frame images having different brightnesses, from a video output apparatus for outputting the first video data.
9. A control method of a display apparatus, comprising:
converting first video data having a first frame rate to second video data having a second frame rate, wherein the second frame rate is “n” times as high as the first frame rate (“n” being an integer of two or larger); and
displaying the second video data,
wherein in the converting of the frame rate, when the first video data is video data of two successive frame images having different brightnesses, a first frame rate converting process for converting the first video data to the second video data is performed by outputting a frame image group made of two successive frame images in the first video data “n” times in a row at the second frame rate.
10. A control method of a display apparatus, comprising:
converting first video data having a first frame rate to second video data having a second frame rate, wherein the second frame rate is “n” times as high as the first frame rate (“n” being an integer of two or larger); and
displaying the second video data,
wherein in the converting the frame rate, when the first video data is video data of two successive frame images having different brightnesses, a frame rate converting process for converting the first video data to the second video data is performed by outputting an i-th (i being an integer of one or larger) frame image and an i+1-th frame image in the first video data in order at the second frame rate, and then, performing a process for generating two interpolation frame images respectively from a frame image pair made of the i-th frame image and the i+2th frame image of the first video data and a frame image pair of the i+1th frame image and the i+3th frame image of the first image data and outputting the two interpolation frame images in order n−1 times at the second frame rate.