Imaging apparatus and reproducing apparatus which changes frame rate based on zoom operation

26 Pages·2014·1.55 MB·English

US 20130343732A1
(19) United States
(12) Patent Application Publication (10) Pub. No.: US 2013/0343732 A1
Suzuki (43) Pub. Date: Dec. 26, 2013
(54) IMAGING APPARATUS AND REPRODUCING Publication Classi?cation
APPARATUSWHICHCHANGESFRAME
RATE BASED ON ZOOM OPERATION (51) Int- Cl
H04N 9/87 (2006.01)
(71) Applicant: CANON KABUSHIKI KAISHA, (52) US, Cl,
TOKYO (JP) CPC ..................................... .. H04N 9/87 (2013.01)
USPC ........................................................ .. 386/353
(72) Inventor: Toshihiko Suzuki, Yokohama-shi (JP)
_ (57) ABSTRACT
(73) Ass1gnee: CANON KABUSHIKI KAISHA,
Tokyo (JP) An imaging unit outputs a Video signal at a frame rate higher
than a standard frame rate. During a Zoom operation period or
(21) APP1- NOJ 13/954,888 a period including the Zoom operation period and periods
before and after the Zoom operation, a Video signal from the
(22) Filed: Jlll- 30: 2013 imaging unit is recorded in a recording medium at a high
_ _ recording frame rate. Other than this period, a Video signal is
Related U's' Apphcatlon Data recorded in the recording medium at the standard frame rate.
(63) Continuation of application NO 13/605,065, ?led on The recording frame rate and Zoom operation information is
Sell 6, 2012, HOW pat NO_ 8,508,627’ which is a Con_ recorded as metadata in the recording medium. During repro
tinuation of application NO 12/778,017, ?led on May duction, based on a set reproduction mode, thinning process
11, 2010, now Pat' No_ 8,264,573 ing is carried out on a Video signal recorded during a Zoom
operation, and the processed signal is output at the standard
(30) Foreign Application Priority Data frame rate. In this Way, it is possible to change a frame rate in
VieW of a photographer’s intention and assure compatibility
May 20, 2009 (JP) ............................... .. 2009-121535 With existing VieWing and reproduction environments.
( START )
l V S1
ZOOM
OPERATION?
DETERMINE
ZOOM SPEED
1
SET RECORDING
FRAME RATE
1
CONTROL
RECORDED FRAMES
1
UPDATE FILE
MANAGEMENT DATA
Patent Application Publication Dec. 26, 2013 Sheet 1 0f 16 US 2013/0343732 A1
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Patent Application Publication Dec. 26, 2013 Sheet 2 0f 16 US 2013/0343732 A1
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Patent Application Publication Dec. 26, 2013 Sheet 3 0f 16 US 2013/0343732 A1
FIG.3
ZOOM
OPERATION?
G
DNEE
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RECORDING
COMPLETED?
Patent Application Publication Dec. 26, 2013 Sheet 4 0f 16 US 2013/0343732 A1
FIG.4
RECORDING
FRAME RATE
A
= ZOOM
LOW HIGH SPEED
Patent Application Publication Dec. 26, 2013 Sheet 5 0f 16 US 2013/0343732 A1
VIDEO DATA
PHOERATDIEORN METADATA LIST
Date 2008/01/01 [Year/month/day]
METADATA
PORTION Time 12:00:00 [hour:minute:second]
Zoom X1 [X1, .......... ..X20, .......... ..]
Zoom Speed 1 [1, 2, 3, .......... ..]
DATA a REC Frame Rate 24 0 P [60 l, 60 P,12 0 P, 24 0 P, ....... .. ]
PORT'ON ‘3 Shutter 1/100 [1/100, 125, 250, .......... ..]

Patent Application Publication Dec. 26, 2013 Sheet 7 0f 16 US 2013/0343732 A1
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Patent Application Publication Dec. 26, 2013 Sheet 8 0f 16 US 2013/0343732 A1
FIG.8
READ METADATA ~S11
RECORDED AT
DIFFERENT RECORDING
FRAME RATES?
D SPECIAL
CTION EFFECTS ~S13
SET MODE)
CONTROL
~S14
DISPLAYED FRAMES
CONTROL
“#515
OUTPUT AUDIO
N516
S 1 7
REPRODUCTION
COMPLETED?
Patent Application Publication Dec. 26, 2013 Sheet 9 0f 16 US 2013/0343732 A1
SPECIAL CHANGE IN zOOM
REPRODucTION EFFECTS MAGNIFICATION
I_INEAR
CONSTANT
MODE 1 sMOOTHING
MODE ZOOM SPEED
DYNAMIC GRADUAI. CHANGE IN zOOM
MODE 2 SHOOTING SPEED AT THE BEGINNING AND
MODE RAPID CHANGE AT THE END
SOFT RAPID CHANGE IN zOOM
MODE 3 LANDING SPEED AT THE BEGINNING AND
MODE GRADUAL CHANGE AT THE END
SLOW ALL THE FRAMEs
MODE 4 MOTION REOORDED AT HIGH
MODE RATE ARE REPRODucED
REPRODucED WITHOUT
MODE 5 SKIP MODE FRAMEs REcORDED BY
ERRONEOus zOOM OPERATION