Display apparatus for displaying images

Patent metadata

Field	Value
Publication number	US-2016342301-A1
Application number	US-201615064506-A
Country	US
Kind code	A1
Filing date	Mar 8, 2016
Priority date	May 22, 2015
Publication date	Nov 24, 2016
Grant date	—

Abstract

An object of the present invention is to make it possible to easily display user's desired images.
An imaging apparatus includes a frame rate acquiring unit, a measuring unit and a reproduction control unit. The frame rate acquiring unit acquires the imaging frame rate of a video to be reproduced. The measuring unit measures the operation speed of a user's touch operation on a touch panel while the touch operation is performed. The reproduction control unit controls reproduction of the video which is displayed on the display panel, based on the acquired imaging frame rate and the subsequently measured operation speed.

First claim

What is claimed is:

1 . A display apparatus comprising:
a touch panel that is configured to be touched by a user; a display unit that is configured to reproduce a video which is imaged at an imaging frame rate; and a processor that is configured to:
acquire an imaging frame rate of a video to be reproduced;
measure an operation speed of a user's touch operation on the touch panel while the touch operation is performed; and
control reproduction of the video displayed on the display unit, based on the acquired imaging frame rate and the measured operation speed.

2 . The display apparatus according to claim 1 , wherein:
the processor subsequently measures an amount of slide per unit time as the operation speed, while the user performs a slide operation on the touch panel; and the processor controls fast-slow reproduction of the video so as to perform fast-slow reproduction for a constant time according to the amount of slide.

3 . The display apparatus according to claim 2 , wherein:
the processor changes at least one of a reproduction frame rate and a decimation rate according to the acquired imaging frame rate so as to perform fast-slow reproduction for the constant time according to the amount of slide.

4 . The display apparatus according to claim 2 , wherein:
after the slide operation on the touch panel is completed, the processor reproduces the video at a reproduction frame rate according to the measured operation speed at a time when the slide operation is completed.

5 . The display apparatus according to claim 4 , wherein:
in a case where the measured operation speed is zero at the time when the slide operation is completed, the processor temporarily stops reproduction of the video while keeping a frame image of the video displayed on the display unit when the slide operation is completed.

6 . The display apparatus according to claim 2 , wherein:
the processor subsequently measures the operation speed while the slide operation is performed on a position of the touch panel.

7 . The display apparatus according to claim 2 , wherein:
the processor independently controls to display the video and to display a plurality of frame images constituting the video in at least one line; and the processor subsequently measures the operation speed while the slide operation is performed on a part of the touch panel corresponding to the display of frame images.

8 . The display apparatus according to claim 7 , wherein:
the processor further measures another amount of another user's touch operation on the part of the touch panel corresponding to the display of frame images, said another touch operation being different from the slide operation; and the processor displays a plurality of frame images in at least one line so as to correspond to a variable time interval according to the measured amount of said another touch operation.

9 . The display apparatus according to claim 2 , wherein:
the processor subsequently measures the operation speed while a user's arc-like slide operation is performed on the touch panel.

10 . The display apparatus according to claim 9 , wherein
the processor is further configured to:
determine whether a type of the slide operation on the touch panel is a linear slide operation or an arc-like slide operation, and
in a case where the type of the slide operation is an arc-like slide operation, the processor controls to display a center of a circle distinguishably based on a trajectory of the arc-like slide operation.

11 . The display apparatus according to claim 1 , wherein
the processor is further configured to:
decode frame images within a predetermined period in advance, among a plurality of frame images constituting the video to be reproduced; and
store the decoded frame images within the predetermined period.

12 . The display apparatus according to claim 11 , wherein:
with reference to a position of a frame image which is currently reproduced, the processor decodes the frame images within the predetermined period, in each of a current reproduction direction and the opposite direction to the current reproduction direction, in advance.

13 . The display apparatus according to claim 12 , wherein:
the processor specifies a decoding process order of (i) the frame images within the predetermined period in the current reproduction direction and (ii) the frame images within the predetermined period in the opposite direction, according to the current reproduction direction of the video; and the processor decodes the frame images in the specified decoding process order, in advance.

14 . The display apparatus according to claim 12 , wherein:
the processor specifies a decoding process order of (i) the frame images within the predetermined period in the current reproduction direction and (ii) the frame images within the predetermined period in the opposite direction, or specifies a time required to decode, according to a current reproduction speed of the video; and the processor decodes the frame images in the specified decoding process order or within the specified time, in advance.

15 . A display apparatus comprising:
a touch panel that is configured to be touched by a user; a display unit, and a processor that is configured to:
measure a sliding amount of a user's slide operation while the slide operation is performed, the slide operation being started from a position on the touch panel; and
continuously control a switching amount of switching an image displayed on the display unit to another image while the slide operation is performed, the switching amount of switching being variable according to the measured sliding amount.

16 . The display apparatus according to claim 15 , wherein:
a processor is further configured to:
measure a sliding amount of a user's slide operation subsequently while the slide operation is performed, the slide operation being started from a position on the touch panel; and
continuously control a switching amount of switching an image displayed on the display unit to another image while the slide operation is performed, the switching amount of switching being variable according to the subsequently measured sliding amount; and
after the slide operation on the touch panel is completed, the processor controls to display by switching an image displayed on the display unit to another image at the switching amount at a time when the slide operation is completed.

17 . A display apparatus comprising:
a touch panel that is configured to be touched by a user; a display unit, and a processor that is configured to:
measure an acceleration of a user's slide operation on the touch panel; and
continuously control a switching speed of switching an image displayed on the display unit to another image while the slide operation is performed, the switching speed being variable according to the measured acceleration of the slide operation.

18 . The display apparatus according to claim 17 , wherein:
a processor is further configured to:
subsequently measure an acceleration of a user's slide operation on the touch panel; and
continuously control a switching speed of switching an image displayed on the display unit to another image while the slide operation is performed, the switching speed being variable according to the subsequently measured acceleration of the slide operation;
after the slide operation on the touch panel is completed, the processor controls to display by switching an image displayed on the display unit to another ima

Assignees

• Casio Computer Co Ltd

Inventors

• Kato Hiroyuki
• Matsuda Hideaki
• Muraki Jun

Classifications

• H04N23/62 Primary

  Control of parameters via user interfaces · CPC title

• H04N23/667

  Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes · CPC title

• H04N23/63

  by using electronic viewfinders · CPC title

• G06F3/0488 Primary

  using a touch-screen or digitiser, e.g. input of commands through traced gestures · CPC title

• G06F3/0416

  Control or interface arrangements specially adapted for digitisers · CPC title