WO2014072653A1 - Procede pour limiter la memoire necessaire a l'enregistrement d'un fichier audio, image ou video cree grace a un appareil dans ledit appareil - Google Patents
Procede pour limiter la memoire necessaire a l'enregistrement d'un fichier audio, image ou video cree grace a un appareil dans ledit appareil Download PDFInfo
- Publication number
- WO2014072653A1 WO2014072653A1 PCT/FR2013/052679 FR2013052679W WO2014072653A1 WO 2014072653 A1 WO2014072653 A1 WO 2014072653A1 FR 2013052679 W FR2013052679 W FR 2013052679W WO 2014072653 A1 WO2014072653 A1 WO 2014072653A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- quality
- file
- encoding
- format
- compatible
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/172—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/124—Quantisation
- H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/162—User input
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
Definitions
- the present invention relates to the field of media encoding, in particular of audio, image or video media, in the form of digital files. It relates more particularly to a method for reducing the size of these files for recording.
- this capture takes the form of a digital file that is saved in the memory of the device that allowed it to be taken.
- the file is previously encoded so that it is saved in a compressed format, to limit its size and the amount of memory necessary for its backup.
- the size of such a compressed file is essential when it must be saved in a low capacity memory, for example that of a portable device; this is particularly the case for digital cameras, mobile phones, or "mainstream" video cameras.
- the compression format is generally chosen according to its compatibility with applications that allow it to be read or post-processed, directly on the device or on a device to which the file has been transferred.
- the object of the invention is therefore to provide a method for optimizing the storage and / or the quality of such a digital file, while maintaining sufficient compatibility.
- a method according to the invention for the digital encoding of a first raw medium, is characterized in that it comprises:
- said raw medium being an audio and / or image and / or video medium.
- Such a method is particularly advantageous when an application or a sharing is not compatible with the proprietary format.
- the raw media may be a raw representation of data in the RAM and / or internal ROM of an apparatus; it can also be contained in a raw file.
- a digital apparatus according to the invention comprises means for implementing a method according to the invention.
- Such an apparatus comprises image pickup means and / or audio pickup means and / or video pickup means.
- Such a device may especially be a camera (APN), a mobile phone, including a smartphone, a digital tablet, a camera or a dictaphone.
- APN camera
- a mobile phone including a smartphone, a digital tablet, a camera or a dictaphone.
- Absolute compatibility being illusory, in the present description, the term "compatible format" a format having a compatibility greater or different from that of the proprietary program.
- Figures 1 to 4 each illustrate a mode of implementation of a respective method according to the invention.
- each photograph taken is immediately and systematically encoded in the form of a digital format file owner P.
- the proprietary format P is little or not compatible with applications and software of the viewer type, provided by other editors.
- the device processes the image so as to re-encode it in the compatible format.
- a first embodiment will now be described for such a method, with reference to FIG. 1.
- the operator prior to encoding in the proprietary format P, the operator chooses a Qp encoding quality for said proprietary format. P; prior to encoding in the compatible format C, it also chooses a Qc encoding quality for said compatible format C.
- the quality of encoding Qp is not chosen at proprietary format; thus, the proprietary encoding P is systematically made according to a fixed quality. This is particularly advantageous if the encoding is very efficient at the level of the compression ratio while maintaining a high quality of the rendered image; this is true of lossless encodings.
- the quality Qc of the compatible encoding Qc is chosen.
- the quality of encoding Qc in compatible format is not chosen; only the quality Qp of the proprietary encoding P is chosen.
- the quality Qc of the image restored in compatible format can be determined automatically by the device according to the quality Qp chosen for proprietary format.
- the quality QC which will have to be restored when sharing with a camera, is selected as soon as the picture is taken. application not compatible with the P format.
- the device then automatically determines the quality Qp of the proprietary format Qp which will make it possible to obtain a file of equivalent quality and of lower weight.
- the file is re-encoded in C compatible format with Qc quality.
- the combined use of a proprietary format together with a compatible format may be completely transparent; the user choosing a quality without concern, and even without knowing that the device uses multiple formats, the device is responsible for providing an image in the right format according to his needs.
- the choice of a quality is generally made between three: high, medium or low, alternatively excellent, high and average. This choice can be made with each shot for the quality Qp of the proprietary format P or the quality Qc of the compatible format C which will have to be restored, and / or with each selection of a previously encoded image in the proprietary format for the quality Qc compatible format. However, preferably, the choice is made using a setup menu, and this choice remains valid for all shots, until the corresponding setting has not been changed.
- the apparatus is able to automatically optimize the use of one format or another, the proprietary format being used for storing files, and the compatible format being used only when necessary.
- the version stored in the proprietary format P of a file is kept unchanged and only a copy is made in compatible format C, when necessary, this copy being advantageously destroyed when it is no longer used, in order to do not unnecessarily clutter the device's memory.
- the invention is not limited to the examples which have just been described.
- the quality choice is made by the operator.
- the quality can be fixed, whatever the photo taken, or the quality be determined automatically by the device, according to pre-established criteria of origin.
- the transition to compatible format can be done at the request of the operator; however, for consumer devices, the passage of a proprietary format is done automatically, when the operator uses an application available on the device and which requires the compatible format, and systematically when the operator wants to export the image to another device, for example a computer or a printer.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Television Signal Processing For Recording (AREA)
- Studio Devices (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015541217A JP6335912B2 (ja) | 2012-11-09 | 2013-11-08 | 装置によって生成された音声,画像又は動画ファイルを当該装置に記録するために必要なメモリを制限するための方法 |
US14/441,736 US9729886B2 (en) | 2012-11-09 | 2013-11-08 | Method for limiting the memory required for recording an audio, image or video file created by virtue of an apparatus in said apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1260679 | 2012-11-09 | ||
FR1260679A FR2998078A1 (fr) | 2012-11-09 | 2012-11-09 | Procede pour limiter la memoire necessaire a l'enregistrement d'un fichier audio, image ou video cree grace a un appareil dans ledit appareil. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014072653A1 true WO2014072653A1 (fr) | 2014-05-15 |
Family
ID=48128398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2013/052679 WO2014072653A1 (fr) | 2012-11-09 | 2013-11-08 | Procede pour limiter la memoire necessaire a l'enregistrement d'un fichier audio, image ou video cree grace a un appareil dans ledit appareil |
Country Status (4)
Country | Link |
---|---|
US (1) | US9729886B2 (fr) |
JP (1) | JP6335912B2 (fr) |
FR (1) | FR2998078A1 (fr) |
WO (1) | WO2014072653A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002087255A2 (fr) * | 2001-04-20 | 2002-10-31 | Front Porch Digital Inc. | Procedes et appareil pour generer, inclure et utiliser des informations relatives a des donnees audio/video archivees |
US20030206597A1 (en) * | 2002-04-19 | 2003-11-06 | Droplet Technology, Inc. | System, method and computer program product for image and video transcoding |
US20070047659A1 (en) * | 2005-08-31 | 2007-03-01 | Ati Technologies Inc. | Method and apparatus for communicating compressed video information |
US20090226102A1 (en) * | 2008-03-10 | 2009-09-10 | Yu-Wen Huang | Image capturing system and method thereof |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7372485B1 (en) * | 1999-06-08 | 2008-05-13 | Lightsurf Technologies, Inc. | Digital camera device and methodology for distributed processing and wireless transmission of digital images |
US7369161B2 (en) * | 1999-06-08 | 2008-05-06 | Lightsurf Technologies, Inc. | Digital camera device providing improved methodology for rapidly taking successive pictures |
US6885395B1 (en) * | 2000-05-26 | 2005-04-26 | Eastman Kodak Company | Selectively adjusting the resolution levels or the quality levels of digital images stored in a digital camera memory |
SE0103746D0 (sv) * | 2001-11-13 | 2001-11-13 | Svep Design Ct Ab | Digital image system |
EP1500268A2 (fr) * | 2002-04-19 | 2005-01-26 | Droplet Technology, Inc. | Systeme de transformee en ondelettes, procede et produit programme informatique associes |
US7092965B2 (en) * | 2002-07-09 | 2006-08-15 | Lightsurf Technologies, Inc. | System and method for improved compression of DCT compressed images |
JP4066852B2 (ja) * | 2003-03-04 | 2008-03-26 | 株式会社日立製作所 | ビデオ符号化方式変換装置、変換方法、およびこれを用いたビデオ記録再生装置 |
JP2008099027A (ja) * | 2006-10-12 | 2008-04-24 | Canon Inc | 信号処理装置、撮像装置、及び信号処理方法 |
JP2009027257A (ja) * | 2007-07-17 | 2009-02-05 | Hitachi Ltd | ビデオカメラ装置 |
US8295624B2 (en) * | 2007-12-03 | 2012-10-23 | Ecole De Technologie Superieure | Method and system for generating a quality prediction table for quality-aware transcoding of digital images |
US20100309987A1 (en) * | 2009-06-05 | 2010-12-09 | Apple Inc. | Image acquisition and encoding system |
ES2681209T3 (es) * | 2009-09-10 | 2018-09-12 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Técnicas de aceleración para una cuantificación optimizada de tasa de distorsión |
US8755438B2 (en) * | 2010-11-29 | 2014-06-17 | Ecole De Technologie Superieure | Method and system for selectively performing multiple video transcoding operations |
US9071841B2 (en) * | 2011-05-17 | 2015-06-30 | Microsoft Technology Licensing, Llc | Video transcoding with dynamically modifiable spatial resolution |
US8780233B2 (en) * | 2011-12-19 | 2014-07-15 | Motorola Solutions, Inc. | Method and apparatus for maintaining a minimum pixel density across an object of interest |
US9280813B2 (en) * | 2012-01-20 | 2016-03-08 | Debing Liu | Blur measurement |
-
2012
- 2012-11-09 FR FR1260679A patent/FR2998078A1/fr active Pending
-
2013
- 2013-11-08 WO PCT/FR2013/052679 patent/WO2014072653A1/fr active Application Filing
- 2013-11-08 JP JP2015541217A patent/JP6335912B2/ja not_active Expired - Fee Related
- 2013-11-08 US US14/441,736 patent/US9729886B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002087255A2 (fr) * | 2001-04-20 | 2002-10-31 | Front Porch Digital Inc. | Procedes et appareil pour generer, inclure et utiliser des informations relatives a des donnees audio/video archivees |
US20030206597A1 (en) * | 2002-04-19 | 2003-11-06 | Droplet Technology, Inc. | System, method and computer program product for image and video transcoding |
US20070047659A1 (en) * | 2005-08-31 | 2007-03-01 | Ati Technologies Inc. | Method and apparatus for communicating compressed video information |
US20090226102A1 (en) * | 2008-03-10 | 2009-09-10 | Yu-Wen Huang | Image capturing system and method thereof |
Also Published As
Publication number | Publication date |
---|---|
US20150312576A1 (en) | 2015-10-29 |
JP2016501457A (ja) | 2016-01-18 |
US9729886B2 (en) | 2017-08-08 |
FR2998078A1 (fr) | 2014-05-16 |
JP6335912B2 (ja) | 2018-05-30 |
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