EP0508607A2
Expired / Lapsed
EP
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Electronic still camera
Assignee: Canon Inc
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Filing: 1992-03-12
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Granted: —
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Expires: 2012-03-12
Abstract
Abstract An electronic still camera including: a plurality of image pickup elements having color filters of a plurality of colors; a color separation unit for separating outputs from the image pickup elements into each color signal; an interpolation unit for receiving an output from the color separation unit and interpolating missing part of each color image data; an orthogonal transformation unit for dividing respective color image data interpolated by the interpolation unit into a plurality of blocks and performing orthogonal transformation, a coding unit for coding an output from the orthogonal transformation unit; and a storage unit for storing an output from the coding unit. <IMAGE>
Inventors
- 👤 Keiichi C/O Canon Kabushiki Kaisha Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 20:06
CPC Classifications
G; G06; G06T; G06T3/00; G06T3/40; G06T3/4007; G06T3/4015; H; H04; H04N; H04N1/00; H04N1/46; H04N1/64; H04N1/648; H04N23/00; H04N23/10; H04N23/80; H04N23/84; H04N23/843; H04N25/00; H04N25/10; H04N25/11; H04N25/13; H04N25/134; H04N9/00; H04N9/79; H04N9/80; H04N9/804; H04N2209/00; H04N2209/04; H04N2209/041; H04N2209/042; H04N2209/045; H04N2209/046
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
75 words
An electronic still camera comprising: a plurality of image pickup elements having color filters of a plurality of colors; color separation means for separating outputs from said image pickup elements into each color signal; interpolation means for receiving an output from said color separation means and interpolating missing color image data; and orthogonal transformation means for dividing respective color image data interpolated by said interpolation means into a plurality of blocks and performing orthogonal transformation.
Claim 2
Dependent Claim
30 words
An electronic still camera according to claim 1, wherein said interpolation means interpolates missing part of said image data for only one or only some of said plurality of colours.
Claim 3
Dependent Claim
17 words
An electronic still camera according to claim 1, wherein said orthogonal transformation means includes discrete cosine transformation.
Claim 4
Dependent Claim
21 words
An electronic still camera according to claim 1, further comprising storage means for storing coded output of said orthogonal transformation means.
Claim 5
Dependent Claim
20 words
An electronic still camera according to claim 4, wherein said storage means includes a memory card as a storage medium.
Claim 6
Dependent Claim
80 words
An image pickup device comprising: (a) image pickup means for converting light incident to each pixel via a color filter into an electric signal, each said pixel being provided with each said color filter passing a different color; (b) interpolation means for interpolating part of said electric signal of missing pixels corresponding to respective said color filters; and (c) orthogonal transformation means for performing orthogonal transformation of said interpolated electric signal by dividing said signal into a plurality of blocks.
Claim 7
Dependent Claim
18 words
An image pickup device according to claim 6, wherein said color filters are disposed in a Bayer matrix.
Claim 8
Dependent Claim
17 words
An image pickup device according to claim 6, wherein said orthogonal transformation means includes discrete cosine transformation.
Claim 9
Dependent Claim
25 words
An image pickup device according to claim 6, further comprising interpolation switching means for switching an interpolation method to be used by said interpolation means.
Claim 10
Dependent Claim
21 words
An image pickup device according to claim 6, further comprising storage means for storing coded output of said orthogonal transformation means.
Claim 11
Dependent Claim
20 words
An image pickup device according to claim 10, wherein said storage means includes a memory card as a storage medium.
Claim 12
Dependent Claim
29 words
A electronic still camera according to claim 1 or claim 2 in which interpolation means are provided for interpolating a missing part of the image data for each colour.
Claim 13
Dependent Claim
35 words
Image processing apparatus for receiving image data and compressing it, comprising means to interpolate further image data from the received image data, and compress image data comprising both received image data and interpolated image data.
Claim 14
Dependent Claim
21 words
Apparatus according to claim 13 for receiving image data for a plurality of colours, which interpolates data for one colour only.
Claim 15
Dependent Claim
22 words
Apparatus according to claim 13 for receiving image data for a plurality of colours, which interpolates data for a plurality of colours.
References Cited (Backward Citations)
No citation records indexed.
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